New Research Shows How Anglers Can Better Protect Striped Bass During Hot Weather

A University of Massachusetts study reveals that air exposure time is the biggest factor affecting striped bass survival after catch-and-release fishing. Maryland wildlife officials are urging anglers to limit handling time and avoid fishing when temperatures exceed 80 degrees in water or 95 degrees in air.

New scientific research demonstrates that striped bass face significantly higher death rates when released during extremely hot weather conditions.

Proper catch-and-release methods have become increasingly vital for Maryland’s striped bass population, which has experienced difficulties generating robust new generations of fish in recent years.

Catch-and-release angling allows fishermen to experience the excitement of landing fish while helping preserve populations by returning catches to their natural habitat. While removing fish from water always carries some health risks, following current scientific guidelines and proper methods can greatly reduce these dangers.

For the best survival chances of hooked stripers, fishermen should employ appropriate gear, minimize the duration fish spend above water, and skip fishing during peak heat periods.

Research indicates that circle hooks result in lower striped bass death rates compared to J hooks, which cause more serious injuries. Maryland law mandates that striped bass anglers use non-offset circle hooks. Single-hook lures prove easier to remove and inflict less harm than treble hook varieties.

DNR recommends catch-and-release fishermen utilize rubber or soft mesh landing nets, along with dehookers and lip-gripping tools for hook removal assistance rather than supporting fish weight. Large specimens should be held horizontally to protect internal organs, never vertically or with hands inserted in gill areas. Wet gloves are essential when handling fish to preserve their protective slime coating. Fisheries officials stress preparation for quick hook removal and rapid photography – under one minute – before release. The optimal approach involves never removing striped bass from water entirely.

Air exposure presents another major threat to released fish. When exhausted fish from fighting tackle get lifted into air, the shock can trigger stress responses and respiratory harm.

A 2025 University of Massachusetts Amherst research project examining post-release behavior of hundreds of striped bass caught off Massachusetts waters determined that air exposure duration represented the most critical factor affecting striped bass recovery. Researchers recommended keeping fight duration under 2 minutes, handling periods under 2 minutes, and air exposure below 1 minute.

The study monitored 521 fish, all surviving within 20 minutes post-release, demonstrating striped bass resilience under many catch-and-release scenarios. However, scientists didn’t track fish beyond that timeframe, and biologists acknowledge fish may experience delayed effects hours or days after capture. Fish kept from water for two minutes or longer failed to fully recover during monitoring periods. These harmful impacts intensified for larger fish and elevated water temperatures.

Air exposure during high temperatures proves especially hazardous for striped bass and other species. DNR urges anglers to avoid catching and releasing medium and large striped bass when water exceeds 80 degrees and air temperatures surpass 95 degrees. During summer months, the department publishes a Striped Bass Fishing Advisory Forecast offering safe angling recommendations based on temperature conditions. Anglers should stay current with state striped bass regulations.

The department is evaluating a seasonal adjustment for Maryland striped bass fishing, potentially opening April for catch-and-release when temperatures remain moderate for safe practices, while closing the entire month of August rather than late July. DNR scientists believe this modification would provide maximum protection for striped bass during their most vulnerable period – the hottest final summer weeks.

Management strategies have concentrated on protecting mature adult fish to support successful spawning when environmental conditions align properly. Fisheries managers, anglers, and the Chesapeake Bay community continue awaiting favorable environmental circumstances, while scientists persist in investigating reasons behind poor spawning performance.

Meanwhile, anglers can contribute to protecting large rockfish that will produce future generations of this iconic state species. Maryland’s striped bass represent a shared resource. Through safe catch-and-release practices and avoiding fishing during extreme heat, anglers can support conservation efforts ensuring future generations benefit from this important species.