Captain Jack's Offshore Report and Analysis - October 31, 2025
EXECUTIVE SUMMARY - BOTTOM LINE UP FRONT
The 2025 offshore season is entering its final chapter as we transition into November, with current gale conditions (west winds 30-45 knots, seas 12-17 feet) keeping all vessels dockside through Saturday morning. However, the late October fishing prior to this system demonstrated that our canyon systems remain biologically productive despite seasonal cooling. The Hudson, Atlantis, and Block Canyon complexes produced exceptional bigeye tuna action with fish to 250 pounds, while yellowfin tuna provided consistent chunking opportunities in the 30 to 80 pound class. Mahi-mahi remained abundant in warmer water pockets, with multi-species days producing 15-plus dolphin alongside tuna. The offshore season recap indicates May through October delivered above-average pelagic fishing, with the September-October period providing some of the best canyon action in recent years.
REGULATORY STATUS: No critical bluefin closures affecting recreational harvest at this time. Standard federal regulations apply for all pelagic species.
CURRENT WEATHER IMPACT: The October 30-31 gale represents a significant weather event with seas occasionally to 22 feet offshore. Fishable conditions return Sunday November 3 with northwest winds 10 knots and seas 2-3 feet—an excellent weather window for those willing to make the run. The approaching full moon on November 5 will create exaggerated tidal flows that may enhance bait concentrations and feeding activity in the canyon edge zones.
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BIOLOGIST'S PERSPECTIVE - ENVIRONMENTAL DRIVERS & FISH BEHAVIOR
The late October offshore environment is characterized by significant thermal stratification and the seasonal southward retreat of the Gulf Stream's northern edge. Sea surface temperatures in our canyon systems have dropped from the low 70s in early October to the mid-to-upper 60s currently, with isolated pockets of 71-72°F water representing the most productive thermal zones. This cooling trend triggers behavioral changes in pelagic species, with yellowfin and bigeye tuna concentrating in areas where temperature breaks intersect with bathymetric features.
The thermocline structure has deepened to approximately 80-120 feet in most canyon systems, creating a distinct thermal barrier that concentrates baitfish and attracts predators. Water clarity remains excellent in the offshore environment with visibility exceeding 100 feet in the canyon cores, though increased phytoplankton activity along the shelf edge has created productive green water zones where nutrient upwelling supports dense bait concentrations.
Ocean current dynamics continue to play the dominant role in fish distribution. Gulf Stream fingers and warm-core eddies have been less pronounced than mid-summer, but backflow currents along the continental shelf edge are creating convergence zones where temperature breaks of 3-5 degrees occur over short distances. These edges function as biological highways, concentrating squid, mackerel, butterfish, and sand eels—the primary forage base for tuna and mahi-mahi.
The October new moon (October 21) created strong tidal currents that enhanced vertical mixing and bait activity, while the approaching November full moon (November 5) will generate similar conditions. Lunar phase influences are particularly pronounced in canyon fishing, where tidal currents interact with bathymetry to create upwelling zones that aggregate bait and trigger feeding responses in pelagic predators.
Barometric pressure fluctuations associated with the current low-pressure system have temporarily suppressed surface feeding activity, but the post-frontal high-pressure period beginning Sunday will create stable atmospheric conditions favorable for aggressive feeding. Bigeye tuna, being deep-water specialists, are less affected by surface conditions and continue to feed actively at depths of 200-400 feet regardless of weather.
The presence of squid in the water column has been a defining characteristic of the late October bite. Squid hatches in the canyon systems attract not only tuna but also mahi-mahi, wahoo, and even late-season white marlin. The squid migration is driven by water temperature and current patterns, with concentrations highest along the 100-fathom curve where shelf waters meet canyon upwelling.
Migration patterns for our target species are now in full effect. Yellowfin tuna are beginning their southward movement, though fish remain available in productive thermal zones. Bigeye tuna, being less migratory and more depth-oriented, continue to occupy the canyon systems year-round but concentrate in specific areas where deep water and current edges intersect. Mahi-mahi are actively migrating south, following warm water and weedlines, with the bulk of the population now south of our primary fishing grounds. Albacore tuna, which provided excellent action in September, have largely moved offshore and north, with only scattered fish remaining in our accessible range.
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HUDSON CANYON - October 25-30, 2025
Hudson Canyon, our southernmost major canyon system, continues to fish well despite seasonal cooling. Water temperatures in the productive zones range from 68-71°F, with the warmest water concentrated along the western wall where Gulf Stream backflow creates a distinct thermal edge. The canyon head at approximately 115 nautical miles from Ambrose Light remains the primary focus area, with fish activity concentrated in the 100-200 fathom depth range.
Species Activity: Bigeye tuna have been the dominant species, with fish in the 120-250 pound class feeding actively on squid and mackerel at depths of 250-400 feet. The bigeye bite has been most productive during night chunking sessions, with fish moving into the upper water column after sunset to feed on the abundant squid concentrations. Yellowfin tuna in the 30-80 pound class have been caught while chunking, with the best action occurring during the early morning hours when bait activity is highest. Mahi-mahi remain present in scattered concentrations, with fish in the 10-25 pound range associated with floating debris and temperature breaks.
Productive Techniques: Night chunking with butterfish has been the most consistent technique for bigeye tuna. Deploy a chum slick and fish baits at multiple depths from 50 feet down to 300 feet, using 6-8 foot fluorocarbon leaders and 6/0-8/0 circle hooks. Bigeye are notoriously leader-shy, so 80-100 pound fluorocarbon is the maximum diameter that will produce consistent bites. For yellowfin, daytime chunking with butterfish or mackerel in the upper 100 feet of the water column has been effective, particularly during the first two hours after sunrise. Vertical jigging with 200-400 gram butterfly jigs has produced both yellowfin and bigeye when fish are located on the sounder but won't commit to chunk baits.
Best Timing: Night sessions from 8 PM to 2 AM have been prime time for bigeye, while early morning from first light to 9 AM has been best for yellowfin. The approaching full moon will enhance night fishing opportunities as increased light penetration allows visual feeding at greater depths.
Bait Presence: Squid concentrations remain excellent throughout the water column, with the largest densities at 150-300 feet. Mackerel and butterfish are present in good numbers along the canyon edges. Bird activity has been minimal, indicating that surface bait concentrations are lower than mid-summer levels.
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ATLANTIS CANYON - October 25-30, 2025
Atlantis Canyon, positioned approximately 100 nautical miles southeast of Fire Island Inlet, has been producing exceptional bigeye tuna fishing with some of the largest fish of the season coming from this system. Water temperatures range from 67-70°F, with the most productive fishing occurring where the 71-72°F water intersects the canyon's eastern wall.
Species Activity: Bigeye tuna to 250 pounds have been the headline species, with multiple fish in the 150-200 pound class caught during night chunking sessions. The size class of bigeye in Atlantis has been notably larger than other canyon systems, likely due to the deeper water and stronger current structure that attracts mature fish. Yellowfin tuna in the 40-90 pound class have been caught during daytime chunking, with the best action occurring when birds are working over bait concentrations. Mahi-mahi have been present but less abundant than earlier in the season, with fish in the 15-30 pound range providing bonus action.
Productive Techniques: Deep dropping during daylight hours has been producing tilefish in the 8-15 pound range at depths of 600-800 feet, providing excellent table fare and productive fishing during periods when pelagic action slows. For bigeye, night chunking remains the primary technique, with baits fished at 100-350 feet on 100 pound fluorocarbon leaders. The key is maintaining a consistent chum slick and fishing multiple rods at varying depths to determine where in the water column the fish are feeding. For yellowfin, trolling a spread of skirted ballyhoo and cedar plugs along the temperature breaks has been effective, particularly during the mid-morning period when fish are actively feeding near the surface.
Best Timing: Night chunking from 9 PM to 3 AM for bigeye. Daytime trolling and chunking from 7 AM to 11 AM for yellowfin. Tilefish bite best during slack tide periods when current is minimal.
Bait Presence: Squid concentrations are exceptional, with large squid in the 12-18 inch range present throughout the water column. This is the primary forage for the large bigeye population. Mackerel schools are present along the canyon rim, and butterfish are abundant in the 100-200 foot depth range.
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BLOCK CANYON - October 25-30, 2025
Block Canyon, our most accessible major canyon system at approximately 65 nautical miles south of Montauk Point, continues to provide excellent fishing opportunities with shorter run times making it attractive for single-day trips. Water temperatures range from 66-69°F, with the warmest water along the southern edge where deeper Gulf Stream influence is most pronounced.
Species Activity: Bigeye tuna in the 100-200 pound class have been the primary target, with consistent action during night sessions. The bigeye population in Block Canyon appears robust, with multiple hookups per night common when conditions are favorable. Yellowfin tuna in the 30-70 pound class have been caught while chunking and trolling, though the bite has been more sporadic than the bigeye action. Albacore tuna have been largely absent, with only scattered fish in the 20-30 pound range encountered. Mahi-mahi remain present in small numbers, with fish in the 10-20 pound range providing occasional action.
Productive Techniques: Night chunking with squid and butterfish has been the most productive approach for bigeye. The shorter run time to Block Canyon makes it feasible to arrive at the grounds in late afternoon, set up a chum slick, and fish through the night before returning the following morning. Fish baits from 75 feet down to 300 feet, with the 150-250 foot zone producing the most consistent action. For yellowfin, early morning chunking in the upper 100 feet has been effective, particularly when bird activity indicates surface bait concentrations. Vertical jigging has produced both species when fish are marked on the sounder but showing reluctance to commit to chunk baits.
Best Timing: Night sessions from 8 PM to 4 AM for bigeye. Early morning from first light to 10 AM for yellowfin. The approaching full moon will create excellent light conditions for night fishing.
Bait Presence: Squid are abundant throughout the water column, with concentrations highest at 100-250 feet. Butterfish schools are present along the canyon walls. Mackerel are present but less abundant than in the southern canyon systems. Whale activity has been observed, indicating healthy bait concentrations.
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TOMS CANYON - October 25-30, 2025
Toms Canyon, positioned south of Long Beach Island, New Jersey, represents the western extent of our primary fishing grounds. While slightly outside the core Long Island focus area, this canyon system has been producing fish and merits inclusion for anglers willing to make the run from western Long Island inlets. Water temperatures range from 67-70°F with productive fishing along the canyon's northern rim.
Species Activity: Yellowfin tuna have been the primary species, with fish in the 40-80 pound class caught while trolling and chunking. Bigeye tuna are present but less concentrated than in the Block-Atlantis-Hudson complex. Mahi-mahi have been more abundant in Toms Canyon than other systems, with schools of 15-30 pound fish providing excellent action when located. Wahoo have been caught occasionally, with fish in the 30-50 pound range taken while trolling high-speed lures.
Productive Techniques: Trolling a mixed spread of skirted ballyhoo, cedar plugs, and high-speed wahoo lures has been effective for covering water and locating active fish. Once fish are located, switching to chunking can extend the action. For mahi-mahi, working floating debris and weedlines with live bait or jigs has been productive.
Best Timing: Early morning trolling from first light to 10 AM. Mid-day mahi-mahi action when fish are located under debris. Evening chunking sessions for yellowfin.
Bait Presence: Flying fish are present in good numbers, indicating healthy pelagic ecosystem. Squid and mackerel are abundant. Weedlines and floating debris concentrations are lower than mid-summer but still present.
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FISHTAILS / BACARDI GROUNDS - October 25-30, 2025
The Fishtails and Bacardi Grounds, positioned between the major canyon systems and the inshore grounds, represent mid-range fishing opportunities at 40-50 nautical miles offshore. These areas lack the dramatic bathymetric relief of the canyon systems but can concentrate fish when temperature breaks and current edges align favorably. Water temperatures range from 65-68°F.
Species Activity: Yellowfin tuna in the 20-50 pound class have been the primary catch, with fish feeding on sand eels and mackerel. The size class is generally smaller than canyon fish, but the action can be more consistent when conditions are favorable. Mahi-mahi have been present in scattered concentrations. Albacore tuna, which were abundant in this zone during September, have largely moved on.
Productive Techniques: Trolling small cedar plugs, spoons, and skirted ballyhoo has been effective for covering water and locating fish. When temperature breaks are identified, chunking with butterfish or mackerel can produce extended action. The key is finding the edges where temperature differentials of 2-3 degrees occur over short distances.
Best Timing: Early morning and late afternoon when fish are most active near the surface. Mid-day action slows considerably unless actively feeding fish are located.
Bait Presence: Sand eels and mackerel are the primary forage. Bird activity can be excellent when bait concentrations are high, providing visual cues for locating fish.
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MONTAUK OFFSHORE GROUNDS - October 25-30, 2025
The Montauk offshore grounds, extending from 10 to 30 nautical miles south of Montauk Point, represent our northernmost offshore fishing zone. While these grounds lack the depth and structure of the canyon systems, they can provide excellent fishing opportunities with minimal run times. Water temperatures range from 62-66°F, with the warmest water along the southern edge of the fishing grounds.
Species Activity: The late October period has seen a transition away from pelagic species toward more inshore opportunities. Striped bass have become the dominant species in the Montauk area, with the offshore pelagic bite significantly diminished from September levels. Scattered yellowfin tuna in the 20-40 pound class remain available when temperature breaks can be located. Mahi-mahi are largely absent. The albacore tuna that provided excellent action in September have moved offshore and north.
Productive Techniques: For the remaining tuna opportunities, trolling small cedar plugs and spoons along temperature breaks has been the most effective approach. Chunking can be productive when fish are located, but the concentrations are significantly lower than the canyon systems. Most effort in the Montauk area has shifted to inshore striped bass fishing, which is currently exceptional.
Best Timing: Early morning from first light to 9 AM for any remaining tuna opportunities. The afternoon period has been largely unproductive for pelagic species.
Bait Presence: Sand eels are abundant in the water column, though these are primarily attracting striped bass rather than tuna. Mackerel schools are present but diminishing. The overall bait profile indicates a seasonal transition toward inshore species.
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SPECIES-SPECIFIC ANALYSIS
Yellowfin Tuna: Current abundance is moderate and declining as fish migrate south. Size ranges from 20-90 pounds with the average fish in the 40-60 pound class. Behavioral patterns indicate feeding activity concentrated in early morning hours when bait is most active. Optimal techniques include daytime chunking with butterfish or mackerel in the upper 100 feet, and trolling skirted ballyhoo along temperature breaks. Timing optimization focuses on the first three hours after sunrise when feeding activity peaks.
Bigeye Tuna: Current abundance is excellent in the Hudson-Atlantis-Block canyon complex. Size ranges from 100-250 pounds with multiple fish over 200 pounds caught in recent weeks. Behavioral patterns are strongly nocturnal, with fish moving into the upper water column after sunset to feed on squid concentrations. Optimal techniques include night chunking with squid and butterfish at depths of 100-350 feet using heavy fluorocarbon leaders. The approaching full moon will enhance night fishing opportunities.
Mahi-Mahi: Current abundance is low and declining as fish migrate south. Size ranges from 10-30 pounds. Behavioral patterns indicate association with floating debris, weedlines, and temperature breaks. Optimal techniques include working debris with live bait or jigs, and trolling along temperature breaks. Most productive fishing occurs mid-day when fish are actively feeding near the surface.
Albacore Tuna: Current abundance is very low with the bulk of the population having moved offshore and north. Scattered fish in the 20-30 pound range remain available but are not a reliable target species at this time.
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ENVIRONMENTAL CONDITIONS SUMMARY
Water Temperature Analysis: Sea surface temperatures have cooled to 62-72°F across our fishing grounds, with the warmest water in the southern canyon systems. The 71-72°F zones represent optimal thermal habitat for yellowfin and mahi-mahi, while bigeye tuna are less temperature-dependent and feed actively across the entire temperature range. Temperature breaks of 3-5 degrees over short distances are the most productive fishing zones.
Current Activity: Gulf Stream influence remains present but diminished compared to summer levels. Backflow currents along the continental shelf edge are creating convergence zones that concentrate bait. Current edges where flow differentials create upwelling are prime fishing locations.
Bait Concentrations: Squid are abundant throughout the water column in all canyon systems, representing the primary forage for bigeye tuna. Mackerel and butterfish are present in good numbers along canyon edges. Sand eels are abundant in the inshore and mid-range zones. Flying fish presence indicates healthy pelagic ecosystem in southern grounds.
Weather Impacts: The current gale (October 30-31) has temporarily suspended all offshore fishing. Seas of 12-17 feet occasionally to 22 feet make the grounds inaccessible. Fishable conditions return Sunday November 3 with northwest winds 10 knots and seas 2-3 feet—an excellent weather window. The post-frontal high-pressure period will create stable conditions favorable for aggressive feeding.
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TACTICAL RECOMMENDATIONS
Multi-Species Strategies: For anglers targeting multiple species, focus efforts on the Atlantis and Hudson canyon systems where bigeye, yellowfin, and mahi-mahi are all present. Begin with early morning trolling to locate yellowfin and mahi-mahi, then transition to daytime chunking if fish are cooperative. As evening approaches, set up for night chunking to target bigeye tuna. This approach maximizes species diversity and fishing time.
Bait and Lure Selection: For chunking, butterfish and squid are the primary baits. Rig butterfish on 6/0-8/0 circle hooks with 80-100 pound fluorocarbon leaders for bigeye, and 50-80 pound fluorocarbon for yellowfin. For trolling, skirted ballyhoo in natural colors, cedar plugs, and high-speed wahoo lures provide a balanced spread. For vertical jigging, 200-400 gram butterfly jigs in blue/silver and green/gold patterns are most effective.
Technology and Fish-Finding: Quality sounder technology is essential for canyon fishing. Look for bait concentrations at 100-300 feet, and fish marks below the bait layer. Temperature monitoring is critical—identify the warmest water and focus efforts on the edges where temperature breaks occur. Current monitoring helps identify convergence zones where upwelling concentrates bait.
Timing Optimization: For bigeye tuna, night sessions from 8 PM to 4 AM are prime time, with peak feeding activity from 10 PM to 2 AM. For yellowfin tuna, the first three hours after sunrise are most productive. For mahi-mahi, mid-day fishing when the sun is high and fish are actively feeding near the surface. The approaching full moon (November 5) will create enhanced tidal flows and excellent light conditions for night fishing.
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72-HOUR OCEANOGRAPHIC OUTLOOK
The current gale will clear the area by Saturday evening, with Sunday November 3 providing excellent offshore conditions. Northwest winds 10 knots and seas 2-3 feet will create a rare late-season weather window for canyon fishing. Sea surface temperatures are expected to remain stable in the 66-71°F range, with the warmest water in the southern canyon systems.
The approaching full moon on November 5 will create exaggerated tidal flows that enhance vertical mixing and bait activity in the canyon systems. This lunar phase historically produces excellent bigeye tuna fishing as increased light penetration allows visual feeding at greater depths during night sessions.
Water clarity is expected to remain excellent with visibility exceeding 100 feet in the canyon cores. Current patterns should remain favorable with Gulf Stream backflow creating productive edges along the continental shelf.
The Sunday-Monday weather window represents likely the final optimal offshore opportunity before the seasonal transition to winter fishing patterns. Anglers with capable vessels should prioritize this window for canyon fishing, with focus on the Block-Atlantis-Hudson complex for bigeye tuna opportunities.
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FINAL ASSESSMENT
The 2025 offshore season has been exceptional, with consistent pelagic fishing from May through October. As we enter November, the seasonal transition is underway, but productive fishing opportunities remain for those willing to make the run during favorable weather windows. The bigeye tuna bite in the canyon systems remains robust, the yellowfin tuna fishery continues to produce despite seasonal migration, and scattered mahi-mahi provide bonus opportunities.
The Sunday November 3 weather window should be capitalized on by serious offshore anglers. Focus efforts on the Block, Atlantis, and Hudson canyon systems, with night chunking for bigeye tuna and early morning sessions for yellowfin. The approaching full moon will enhance fishing opportunities through the first week of November.
For those unable to make the offshore run, the inshore striped bass fishing is currently exceptional and represents an outstanding alternative. The seasonal transition from offshore to inshore fishing is a natural progression, and both fisheries can be enjoyed during this transitional period.
Captain Jack
Fisheries Biologist & Offshore Specialist
EXECUTIVE SUMMARY - BOTTOM LINE UP FRONT
The 2025 offshore season is entering its final chapter as we transition into November, with current gale conditions (west winds 30-45 knots, seas 12-17 feet) keeping all vessels dockside through Saturday morning. However, the late October fishing prior to this system demonstrated that our canyon systems remain biologically productive despite seasonal cooling. The Hudson, Atlantis, and Block Canyon complexes produced exceptional bigeye tuna action with fish to 250 pounds, while yellowfin tuna provided consistent chunking opportunities in the 30 to 80 pound class. Mahi-mahi remained abundant in warmer water pockets, with multi-species days producing 15-plus dolphin alongside tuna. The offshore season recap indicates May through October delivered above-average pelagic fishing, with the September-October period providing some of the best canyon action in recent years.
REGULATORY STATUS: No critical bluefin closures affecting recreational harvest at this time. Standard federal regulations apply for all pelagic species.
CURRENT WEATHER IMPACT: The October 30-31 gale represents a significant weather event with seas occasionally to 22 feet offshore. Fishable conditions return Sunday November 3 with northwest winds 10 knots and seas 2-3 feet—an excellent weather window for those willing to make the run. The approaching full moon on November 5 will create exaggerated tidal flows that may enhance bait concentrations and feeding activity in the canyon edge zones.
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BIOLOGIST'S PERSPECTIVE - ENVIRONMENTAL DRIVERS & FISH BEHAVIOR
The late October offshore environment is characterized by significant thermal stratification and the seasonal southward retreat of the Gulf Stream's northern edge. Sea surface temperatures in our canyon systems have dropped from the low 70s in early October to the mid-to-upper 60s currently, with isolated pockets of 71-72°F water representing the most productive thermal zones. This cooling trend triggers behavioral changes in pelagic species, with yellowfin and bigeye tuna concentrating in areas where temperature breaks intersect with bathymetric features.
The thermocline structure has deepened to approximately 80-120 feet in most canyon systems, creating a distinct thermal barrier that concentrates baitfish and attracts predators. Water clarity remains excellent in the offshore environment with visibility exceeding 100 feet in the canyon cores, though increased phytoplankton activity along the shelf edge has created productive green water zones where nutrient upwelling supports dense bait concentrations.
Ocean current dynamics continue to play the dominant role in fish distribution. Gulf Stream fingers and warm-core eddies have been less pronounced than mid-summer, but backflow currents along the continental shelf edge are creating convergence zones where temperature breaks of 3-5 degrees occur over short distances. These edges function as biological highways, concentrating squid, mackerel, butterfish, and sand eels—the primary forage base for tuna and mahi-mahi.
The October new moon (October 21) created strong tidal currents that enhanced vertical mixing and bait activity, while the approaching November full moon (November 5) will generate similar conditions. Lunar phase influences are particularly pronounced in canyon fishing, where tidal currents interact with bathymetry to create upwelling zones that aggregate bait and trigger feeding responses in pelagic predators.
Barometric pressure fluctuations associated with the current low-pressure system have temporarily suppressed surface feeding activity, but the post-frontal high-pressure period beginning Sunday will create stable atmospheric conditions favorable for aggressive feeding. Bigeye tuna, being deep-water specialists, are less affected by surface conditions and continue to feed actively at depths of 200-400 feet regardless of weather.
The presence of squid in the water column has been a defining characteristic of the late October bite. Squid hatches in the canyon systems attract not only tuna but also mahi-mahi, wahoo, and even late-season white marlin. The squid migration is driven by water temperature and current patterns, with concentrations highest along the 100-fathom curve where shelf waters meet canyon upwelling.
Migration patterns for our target species are now in full effect. Yellowfin tuna are beginning their southward movement, though fish remain available in productive thermal zones. Bigeye tuna, being less migratory and more depth-oriented, continue to occupy the canyon systems year-round but concentrate in specific areas where deep water and current edges intersect. Mahi-mahi are actively migrating south, following warm water and weedlines, with the bulk of the population now south of our primary fishing grounds. Albacore tuna, which provided excellent action in September, have largely moved offshore and north, with only scattered fish remaining in our accessible range.
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HUDSON CANYON - October 25-30, 2025Hudson Canyon, our southernmost major canyon system, continues to fish well despite seasonal cooling. Water temperatures in the productive zones range from 68-71°F, with the warmest water concentrated along the western wall where Gulf Stream backflow creates a distinct thermal edge. The canyon head at approximately 115 nautical miles from Ambrose Light remains the primary focus area, with fish activity concentrated in the 100-200 fathom depth range.
Species Activity: Bigeye tuna have been the dominant species, with fish in the 120-250 pound class feeding actively on squid and mackerel at depths of 250-400 feet. The bigeye bite has been most productive during night chunking sessions, with fish moving into the upper water column after sunset to feed on the abundant squid concentrations. Yellowfin tuna in the 30-80 pound class have been caught while chunking, with the best action occurring during the early morning hours when bait activity is highest. Mahi-mahi remain present in scattered concentrations, with fish in the 10-25 pound range associated with floating debris and temperature breaks.
Productive Techniques: Night chunking with butterfish has been the most consistent technique for bigeye tuna. Deploy a chum slick and fish baits at multiple depths from 50 feet down to 300 feet, using 6-8 foot fluorocarbon leaders and 6/0-8/0 circle hooks. Bigeye are notoriously leader-shy, so 80-100 pound fluorocarbon is the maximum diameter that will produce consistent bites. For yellowfin, daytime chunking with butterfish or mackerel in the upper 100 feet of the water column has been effective, particularly during the first two hours after sunrise. Vertical jigging with 200-400 gram butterfly jigs has produced both yellowfin and bigeye when fish are located on the sounder but won't commit to chunk baits.
Best Timing: Night sessions from 8 PM to 2 AM have been prime time for bigeye, while early morning from first light to 9 AM has been best for yellowfin. The approaching full moon will enhance night fishing opportunities as increased light penetration allows visual feeding at greater depths.
Bait Presence: Squid concentrations remain excellent throughout the water column, with the largest densities at 150-300 feet. Mackerel and butterfish are present in good numbers along the canyon edges. Bird activity has been minimal, indicating that surface bait concentrations are lower than mid-summer levels.
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ATLANTIS CANYON - October 25-30, 2025Atlantis Canyon, positioned approximately 100 nautical miles southeast of Fire Island Inlet, has been producing exceptional bigeye tuna fishing with some of the largest fish of the season coming from this system. Water temperatures range from 67-70°F, with the most productive fishing occurring where the 71-72°F water intersects the canyon's eastern wall.
Species Activity: Bigeye tuna to 250 pounds have been the headline species, with multiple fish in the 150-200 pound class caught during night chunking sessions. The size class of bigeye in Atlantis has been notably larger than other canyon systems, likely due to the deeper water and stronger current structure that attracts mature fish. Yellowfin tuna in the 40-90 pound class have been caught during daytime chunking, with the best action occurring when birds are working over bait concentrations. Mahi-mahi have been present but less abundant than earlier in the season, with fish in the 15-30 pound range providing bonus action.
Productive Techniques: Deep dropping during daylight hours has been producing tilefish in the 8-15 pound range at depths of 600-800 feet, providing excellent table fare and productive fishing during periods when pelagic action slows. For bigeye, night chunking remains the primary technique, with baits fished at 100-350 feet on 100 pound fluorocarbon leaders. The key is maintaining a consistent chum slick and fishing multiple rods at varying depths to determine where in the water column the fish are feeding. For yellowfin, trolling a spread of skirted ballyhoo and cedar plugs along the temperature breaks has been effective, particularly during the mid-morning period when fish are actively feeding near the surface.
Best Timing: Night chunking from 9 PM to 3 AM for bigeye. Daytime trolling and chunking from 7 AM to 11 AM for yellowfin. Tilefish bite best during slack tide periods when current is minimal.
Bait Presence: Squid concentrations are exceptional, with large squid in the 12-18 inch range present throughout the water column. This is the primary forage for the large bigeye population. Mackerel schools are present along the canyon rim, and butterfish are abundant in the 100-200 foot depth range.
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BLOCK CANYON - October 25-30, 2025Block Canyon, our most accessible major canyon system at approximately 65 nautical miles south of Montauk Point, continues to provide excellent fishing opportunities with shorter run times making it attractive for single-day trips. Water temperatures range from 66-69°F, with the warmest water along the southern edge where deeper Gulf Stream influence is most pronounced.
Species Activity: Bigeye tuna in the 100-200 pound class have been the primary target, with consistent action during night sessions. The bigeye population in Block Canyon appears robust, with multiple hookups per night common when conditions are favorable. Yellowfin tuna in the 30-70 pound class have been caught while chunking and trolling, though the bite has been more sporadic than the bigeye action. Albacore tuna have been largely absent, with only scattered fish in the 20-30 pound range encountered. Mahi-mahi remain present in small numbers, with fish in the 10-20 pound range providing occasional action.
Productive Techniques: Night chunking with squid and butterfish has been the most productive approach for bigeye. The shorter run time to Block Canyon makes it feasible to arrive at the grounds in late afternoon, set up a chum slick, and fish through the night before returning the following morning. Fish baits from 75 feet down to 300 feet, with the 150-250 foot zone producing the most consistent action. For yellowfin, early morning chunking in the upper 100 feet has been effective, particularly when bird activity indicates surface bait concentrations. Vertical jigging has produced both species when fish are marked on the sounder but showing reluctance to commit to chunk baits.
Best Timing: Night sessions from 8 PM to 4 AM for bigeye. Early morning from first light to 10 AM for yellowfin. The approaching full moon will create excellent light conditions for night fishing.
Bait Presence: Squid are abundant throughout the water column, with concentrations highest at 100-250 feet. Butterfish schools are present along the canyon walls. Mackerel are present but less abundant than in the southern canyon systems. Whale activity has been observed, indicating healthy bait concentrations.
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TOMS CANYON - October 25-30, 2025Toms Canyon, positioned south of Long Beach Island, New Jersey, represents the western extent of our primary fishing grounds. While slightly outside the core Long Island focus area, this canyon system has been producing fish and merits inclusion for anglers willing to make the run from western Long Island inlets. Water temperatures range from 67-70°F with productive fishing along the canyon's northern rim.
Species Activity: Yellowfin tuna have been the primary species, with fish in the 40-80 pound class caught while trolling and chunking. Bigeye tuna are present but less concentrated than in the Block-Atlantis-Hudson complex. Mahi-mahi have been more abundant in Toms Canyon than other systems, with schools of 15-30 pound fish providing excellent action when located. Wahoo have been caught occasionally, with fish in the 30-50 pound range taken while trolling high-speed lures.
Productive Techniques: Trolling a mixed spread of skirted ballyhoo, cedar plugs, and high-speed wahoo lures has been effective for covering water and locating active fish. Once fish are located, switching to chunking can extend the action. For mahi-mahi, working floating debris and weedlines with live bait or jigs has been productive.
Best Timing: Early morning trolling from first light to 10 AM. Mid-day mahi-mahi action when fish are located under debris. Evening chunking sessions for yellowfin.
Bait Presence: Flying fish are present in good numbers, indicating healthy pelagic ecosystem. Squid and mackerel are abundant. Weedlines and floating debris concentrations are lower than mid-summer but still present.
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FISHTAILS / BACARDI GROUNDS - October 25-30, 2025The Fishtails and Bacardi Grounds, positioned between the major canyon systems and the inshore grounds, represent mid-range fishing opportunities at 40-50 nautical miles offshore. These areas lack the dramatic bathymetric relief of the canyon systems but can concentrate fish when temperature breaks and current edges align favorably. Water temperatures range from 65-68°F.
Species Activity: Yellowfin tuna in the 20-50 pound class have been the primary catch, with fish feeding on sand eels and mackerel. The size class is generally smaller than canyon fish, but the action can be more consistent when conditions are favorable. Mahi-mahi have been present in scattered concentrations. Albacore tuna, which were abundant in this zone during September, have largely moved on.
Productive Techniques: Trolling small cedar plugs, spoons, and skirted ballyhoo has been effective for covering water and locating fish. When temperature breaks are identified, chunking with butterfish or mackerel can produce extended action. The key is finding the edges where temperature differentials of 2-3 degrees occur over short distances.
Best Timing: Early morning and late afternoon when fish are most active near the surface. Mid-day action slows considerably unless actively feeding fish are located.
Bait Presence: Sand eels and mackerel are the primary forage. Bird activity can be excellent when bait concentrations are high, providing visual cues for locating fish.
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MONTAUK OFFSHORE GROUNDS - October 25-30, 2025The Montauk offshore grounds, extending from 10 to 30 nautical miles south of Montauk Point, represent our northernmost offshore fishing zone. While these grounds lack the depth and structure of the canyon systems, they can provide excellent fishing opportunities with minimal run times. Water temperatures range from 62-66°F, with the warmest water along the southern edge of the fishing grounds.
Species Activity: The late October period has seen a transition away from pelagic species toward more inshore opportunities. Striped bass have become the dominant species in the Montauk area, with the offshore pelagic bite significantly diminished from September levels. Scattered yellowfin tuna in the 20-40 pound class remain available when temperature breaks can be located. Mahi-mahi are largely absent. The albacore tuna that provided excellent action in September have moved offshore and north.
Productive Techniques: For the remaining tuna opportunities, trolling small cedar plugs and spoons along temperature breaks has been the most effective approach. Chunking can be productive when fish are located, but the concentrations are significantly lower than the canyon systems. Most effort in the Montauk area has shifted to inshore striped bass fishing, which is currently exceptional.
Best Timing: Early morning from first light to 9 AM for any remaining tuna opportunities. The afternoon period has been largely unproductive for pelagic species.
Bait Presence: Sand eels are abundant in the water column, though these are primarily attracting striped bass rather than tuna. Mackerel schools are present but diminishing. The overall bait profile indicates a seasonal transition toward inshore species.
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SPECIES-SPECIFIC ANALYSIS
Yellowfin Tuna: Current abundance is moderate and declining as fish migrate south. Size ranges from 20-90 pounds with the average fish in the 40-60 pound class. Behavioral patterns indicate feeding activity concentrated in early morning hours when bait is most active. Optimal techniques include daytime chunking with butterfish or mackerel in the upper 100 feet, and trolling skirted ballyhoo along temperature breaks. Timing optimization focuses on the first three hours after sunrise when feeding activity peaks.
Bigeye Tuna: Current abundance is excellent in the Hudson-Atlantis-Block canyon complex. Size ranges from 100-250 pounds with multiple fish over 200 pounds caught in recent weeks. Behavioral patterns are strongly nocturnal, with fish moving into the upper water column after sunset to feed on squid concentrations. Optimal techniques include night chunking with squid and butterfish at depths of 100-350 feet using heavy fluorocarbon leaders. The approaching full moon will enhance night fishing opportunities.
Mahi-Mahi: Current abundance is low and declining as fish migrate south. Size ranges from 10-30 pounds. Behavioral patterns indicate association with floating debris, weedlines, and temperature breaks. Optimal techniques include working debris with live bait or jigs, and trolling along temperature breaks. Most productive fishing occurs mid-day when fish are actively feeding near the surface.
Albacore Tuna: Current abundance is very low with the bulk of the population having moved offshore and north. Scattered fish in the 20-30 pound range remain available but are not a reliable target species at this time.
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ENVIRONMENTAL CONDITIONS SUMMARY
Water Temperature Analysis: Sea surface temperatures have cooled to 62-72°F across our fishing grounds, with the warmest water in the southern canyon systems. The 71-72°F zones represent optimal thermal habitat for yellowfin and mahi-mahi, while bigeye tuna are less temperature-dependent and feed actively across the entire temperature range. Temperature breaks of 3-5 degrees over short distances are the most productive fishing zones.
Current Activity: Gulf Stream influence remains present but diminished compared to summer levels. Backflow currents along the continental shelf edge are creating convergence zones that concentrate bait. Current edges where flow differentials create upwelling are prime fishing locations.
Bait Concentrations: Squid are abundant throughout the water column in all canyon systems, representing the primary forage for bigeye tuna. Mackerel and butterfish are present in good numbers along canyon edges. Sand eels are abundant in the inshore and mid-range zones. Flying fish presence indicates healthy pelagic ecosystem in southern grounds.
Weather Impacts: The current gale (October 30-31) has temporarily suspended all offshore fishing. Seas of 12-17 feet occasionally to 22 feet make the grounds inaccessible. Fishable conditions return Sunday November 3 with northwest winds 10 knots and seas 2-3 feet—an excellent weather window. The post-frontal high-pressure period will create stable conditions favorable for aggressive feeding.
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TACTICAL RECOMMENDATIONS
Multi-Species Strategies: For anglers targeting multiple species, focus efforts on the Atlantis and Hudson canyon systems where bigeye, yellowfin, and mahi-mahi are all present. Begin with early morning trolling to locate yellowfin and mahi-mahi, then transition to daytime chunking if fish are cooperative. As evening approaches, set up for night chunking to target bigeye tuna. This approach maximizes species diversity and fishing time.
Bait and Lure Selection: For chunking, butterfish and squid are the primary baits. Rig butterfish on 6/0-8/0 circle hooks with 80-100 pound fluorocarbon leaders for bigeye, and 50-80 pound fluorocarbon for yellowfin. For trolling, skirted ballyhoo in natural colors, cedar plugs, and high-speed wahoo lures provide a balanced spread. For vertical jigging, 200-400 gram butterfly jigs in blue/silver and green/gold patterns are most effective.
Technology and Fish-Finding: Quality sounder technology is essential for canyon fishing. Look for bait concentrations at 100-300 feet, and fish marks below the bait layer. Temperature monitoring is critical—identify the warmest water and focus efforts on the edges where temperature breaks occur. Current monitoring helps identify convergence zones where upwelling concentrates bait.
Timing Optimization: For bigeye tuna, night sessions from 8 PM to 4 AM are prime time, with peak feeding activity from 10 PM to 2 AM. For yellowfin tuna, the first three hours after sunrise are most productive. For mahi-mahi, mid-day fishing when the sun is high and fish are actively feeding near the surface. The approaching full moon (November 5) will create enhanced tidal flows and excellent light conditions for night fishing.
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72-HOUR OCEANOGRAPHIC OUTLOOK
The current gale will clear the area by Saturday evening, with Sunday November 3 providing excellent offshore conditions. Northwest winds 10 knots and seas 2-3 feet will create a rare late-season weather window for canyon fishing. Sea surface temperatures are expected to remain stable in the 66-71°F range, with the warmest water in the southern canyon systems.
The approaching full moon on November 5 will create exaggerated tidal flows that enhance vertical mixing and bait activity in the canyon systems. This lunar phase historically produces excellent bigeye tuna fishing as increased light penetration allows visual feeding at greater depths during night sessions.
Water clarity is expected to remain excellent with visibility exceeding 100 feet in the canyon cores. Current patterns should remain favorable with Gulf Stream backflow creating productive edges along the continental shelf.
The Sunday-Monday weather window represents likely the final optimal offshore opportunity before the seasonal transition to winter fishing patterns. Anglers with capable vessels should prioritize this window for canyon fishing, with focus on the Block-Atlantis-Hudson complex for bigeye tuna opportunities.
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FINAL ASSESSMENT
The 2025 offshore season has been exceptional, with consistent pelagic fishing from May through October. As we enter November, the seasonal transition is underway, but productive fishing opportunities remain for those willing to make the run during favorable weather windows. The bigeye tuna bite in the canyon systems remains robust, the yellowfin tuna fishery continues to produce despite seasonal migration, and scattered mahi-mahi provide bonus opportunities.
The Sunday November 3 weather window should be capitalized on by serious offshore anglers. Focus efforts on the Block, Atlantis, and Hudson canyon systems, with night chunking for bigeye tuna and early morning sessions for yellowfin. The approaching full moon will enhance fishing opportunities through the first week of November.
For those unable to make the offshore run, the inshore striped bass fishing is currently exceptional and represents an outstanding alternative. The seasonal transition from offshore to inshore fishing is a natural progression, and both fisheries can be enjoyed during this transitional period.
Captain Jack
Fisheries Biologist & Offshore Specialist
