The Atlantic States Marine Fisheries Commission workgroup will eye precautionary, Bay-specific menhaden fishery management measures to protect predators like ospreys and striped bass

(Washington, D.C.)—The Menhaden Management Board (MMB) of the Atlantic States Marine Fisheries Commission voted yesterday to establish a workgroup to consider options for precautionary management of the Chesapeake Bay industrial menhaden fishery, including time and area closures, to account for seabird and fish diet needs at critical points in their life cycles. The workgroup will be organized over the coming weeks and will start the process of thinking through what future management measures for the Bay menhaden fishery might look like, to lower the pressure that ospreys and other menhaden predators are facing in one of America’s most important estuaries.

Menhaden are baitfish that play an essential role in marine food webs, providing a vital food source for not only ospreys, but many larger species like striped bass, redfish, whales, dolphins, and seabirds.

The motion to establish a workgroup, which was unanimously supported by the MMB, was put forward by the Maryland ASMFC delegation’s Allison Colden, who is also Maryland executive director of the Chesapeake Bay Foundation. The group should begin to answer some of the questions that conservation groups have had for years about the menhaden fishery’s impact on the Bay ecosystem, and will propose potential sustainable solutions for the ASMFC to deliberate.

“We’re seeing some major ecological red flags in the Chesapeake Bay,” said Allison Colden, CBF Maryland executive director. “From struggling osprey populations to dismal menhaden bait landings, it’s clear that additional precautions are needed.”

Chesapeake Bay residents and scientists have been sounding the alarm about a lack of menhaden in the Bay leading to lower osprey chick-rearing success. This led to the MMB inviting the U.S. Geological Survey to make a presentation on Aug. 6 to inform the Board about the status of osprey in the Chesapeake Bay, and the problems these birds of prey are currently facing. Data shows that ospreys in some parts of the Bay are particularly reliant on oil-rich menhaden as food for their young, especially in the spring and summer months during chick-rearing season when male ospreys must bring in extra food to feed their mate and offspring. In recent years, the numbers have shown that ospreys in parts of the Bay are unsuccessful in raising enough young each year to sustain stable long-term populations, due in part to a lack of food availability for young chicks.

While the Atlantic menhaden fishery is already managed to account for the diet needs of multiple fish predators, such as striped bass and bluefish, to leave enough forage in the water for those fish to eat, osprey are not explicitly included in that management structure despite their clear reliance on menhaden in their diets. Updated stock assessments will be published in fall 2025, which will essentially model how menhaden have been interacting with the Atlantic ecosystem in recent years, and will help managers set appropriate harvest quotas in future fishing seasons. Unfortunately, those assessment calculations are not detailed enough to determine how the menhaden fishery is impacting the ecosystem in specific zones, such as within the Chesapeake Bay region, where harvest is concentrated.

“Setting specific regulations tailored to regional differences in harvest, based on what we know now, is a way to manage the menhaden fishery in a precautionary manner until the stock assessment science can catch up,” said Jaclyn Higgins, forage fish program manager for the Theodore Roosevelt Conservation Partnership. “We have a wide range of longstanding seabird data that has been collected for decades, which shows us the ebb and flow of osprey populations along the Atlantic. We know that osprey chicks aren’t getting enough to eat in the Chesapeake, and we know they are reliant on menhaden in that important chick-rearing timeframe.”

Higgins says that establishing regulations that leave more menhaden in the water in the Bay at critical times, based on osprey needs and the needs of other Bay predators, is an ideal way to expand upon the ecosystem-based management framework that the ASMFC already uses to manage this iconic forage fish.

“The TRCP is excited to support this movement towards further refining the ecosystem-based management of the Atlantic menhaden fishery,” Higgins said. “Refining the spatial components of the ASMFC’s menhaden management structure will further improve the sustainability of this fishery, and will allow for more predators to have sufficient access to this critical forage species into the future.”

The workgroup expects to present their findings to the MMB at its October 2024 meeting.

For more information about the key role menhaden and other forage fish play in marine ecosystems, visit TRCP’s forage fish recovery page.

Read the online version of the news release here.

Founded in 2002, the TRCP is the largest coalition of conservation organizations in the country, uniting and amplifying the voices of sportsmen and women by convening hunting and fishing groups, conservation organizations, and outdoor businesses to a common purpose.

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