Saving Seafood

Striped bass spawning a mixed bag in Bay again this year, surveys show

October 25, 2022 — Striped bass, struggling to rebound from overfishing, had another year of sub-par spawning success in Maryland’s portion of the Chesapeake Bay, new survey results show.

The Maryland Department of Natural Resources reported Thursday that its annual trawl survey of juvenile striped bass yielded 3.6 little fish per net haul. That’s a slight improvement over last year’s results but far below the long-term average of 11.3 per sample.

Striped bass, also known as rockfish, are one of the most popular sport and commercial fish in the Chesapeake Bay and along the East coast.

Read the full article at the Bay Journal

VIRGINIA: Oyster restoration stumbles in Virginia’s Lynnhaven River

September 14, 2022 — Back in the spring, Lynnhaven River Now was celebrating its efforts to rebuild the oyster population in one of the Chesapeake Bay’s most developed watersheds.

Undertaking the largest restoration project in its 20-year history, the nonprofit group started by spreading 190 barge-loads of crushed, recycled concrete across the bottom of Pleasure House Creek, one of the Lynnhaven’s tributaries.

The Chesapeake Bay Foundation, the Lynnhaven group’s partner on the project, followed up by topping the underwater ridges with a thin layer of shells bearing fingernail-size baby oysters.

“New reefs could support 10 million oysters!” Lynnhaven River Now enthused in an April press release. In all, the two groups planned to create nearly 14 acres of oyster habitat in three separate reefs.

But then waterfront residents began complaining about seeing chunks of asphalt, metal wires and steel rebar mixed in with the concrete being put in the water. A state senator responded by holding public meetings to air residents’ grievances. He pressed authorities to investigate, and in July the Virginia Marine Resources Commission ordered CBF to completely remove everything put in the Lynnhaven so far this year.

The snafu has tarnished the reputation of the two environmental groups, at least in the eyes of some riverfront residents.

“The public confidence in the people who are supposed to be protecting the resources the most, [in other words] Lynnhaven River Now and Chesapeake Bay Foundation, have taken a hit. That’s a polite way of saying it,” said Charles “Chuck” Mehle, a longtime waterfront resident and former community association president who was among the project’s vocal critics.

It’s also roiled other restoration efforts in the Lynnhaven, which is one of five Bay tributaries in Virginia where the state has pledged to complete large-scale revival of oyster habitat by 2025. Waterfront residents are now criticizing plans by the U.S. Army Corps of Engineers to create more oyster reefs in the river.

Read the full story at the Bay Journal

VIRGINIA: Northampton to meet with VMRC over fish spills

August 15, 2022 — Net tears have resulted in two large fish spills in Kiptopeke and Silver Beach. Last year, Omega Protein spilled more than 400,000 dead menhaden fish into Hampton Roads waters, something the Chesapeake Bay Foundation (CBF) criticized as an “environmental failure.”

The result of the latest spills has led Northampton County Board Chair Betsy Mapp and Administrator Charlie Kolakowski, along with Senator Lynwood Lewis, to set a meeting with the Virginia Marine Resources Commissioner Jamie Green.

The meeting is scheduled for August 19.

Read the full article at Cape Charles Mirror

Chesapeake Bay Foundation ordered to stop work on 3 Virginia Beach reefs after inspections find asphalt chunks, metal wire

July 14, 2022 — The Virginia Marine Resources Commission mandated that Chesapeake Bay Foundation projects at Pleasure House Creek Oyster Reef, Brown Cove Reef and Keeling Drain Reef be halted due to public safety and environmental issues, according to a letter from the agency dated today.

Inspections of work sites this year, including by dive teams, found material not meant for use on the human-made reefs — such as asphalt and metal wire — was being used, according to the letter.

Commission staff confirmed an “undetermined” amount of concrete rubble had been put on top of a 25-year old oyster broodstock sanctuary reef at Keeling Drain Reef, according to the letter.

At Brown Cove Reef, May inspections found concrete outside the permitted area and asphalt and metal wire at the site, which was also found at the Pleasure House Creek Oyster Reef site. The human-made reef at Pleasure House is also taller than permitted, according to the letter.

Read the full story at MSN

Opinion: Menhaden fishing is a lifeline for Virginia workers

July 7, 2022 — The following is an excerpt of an op-ed by Ken Pinkard, a 38-year, third-generation menhaden fisherman in Virginia’s Northern Neck region. It was published yesterday by the Daily Press and the Virginian-Pilot.

The Virginia Saltwater Sportfishing Association’s Mike Avery inaccurately claims that the Chesapeake Bay’s menhaden fishery is hurting striped bass (“Advocates call for limits of menhaden fishing in Virginia”). In reality, menhaden fishing is not only sustainable, it’s a critical economic engine for Virginia’s Northern Neck.

For decades, menhaden fishermen have worked in the Chesapeake Bay alongside crabbers, oystermen and other watermen. The menhaden fishery is currently the largest employer of minority and union workers in rural Northumberland County, and Virginia will not attract “good-paying” jobs by destroying it. The proposals Avery promotes would have a devastating impact on hardworking Virginians whose families rely on the fishery for their livelihoods.

The economy of the Northern Neck depends on Omega Protein and affiliated companies, just as Detroit depends on GM and Ford. Omega Protein and its fishing partners offer the highest blue-collar wages with the most generous benefits in the Northern Neck. These are union jobs. Every worker has a voice. Some 98% of our Reedville-based employees live in Virginia and 90% live in the Northern Neck.

Read the full op-ed with a subscription at the Daily Press

Chesapeake Bay Dead Zone Smaller Than Previous Years Due To Mild May Temperatures

June 29, 2022 — Researchers are predicting this summer’s dead zone in the Chesapeake Bay will be smaller than the long-term average taken between 1985 and 2021, according to environmental staff.

The change in size is due to the below-average amount of water entering the bay from the watershed’s tributaries this past spring, Chesapeake Bay Program staff said.

Program staff made the announcement alongside researchers from the University of Maryland Center for Environmental Science, the University of Michigan, and U.S. Geological Survey.

Decreased nutrient and sediment pollution from jurisdictions within the watershed also contributed to the smaller dead zone, staff said.

The dead zones consist of areas of low oxygen, known as hypoxic regions. This is where there are dissolved oxygen concentrations of less than two milligrams per liter— primarily caused by excess nutrient pollution flowing into the bay, staff said.

Read the full story at CBS Baltimore

Tracking Fish in the Chesapeake Bay Helps Researchers and Resource Managers

March 2, 2022 — Equipment recently deployed in the Chesapeake Bay is already giving scientists and resource managers insight into fish behavior. Arrays of acoustic telemetry receivers let researchers know when fish that have been tagged swim near the receivers. The data is helping researchers increase knowledge about fish, their migrations, and how they use different habitat areas in the Chesapeake Bay.

Acoustic Receivers Around the Bay

The NOAA Chesapeake Bay Office (NCBO) is working with partners to help researchers get data from five groups of receivers. Three arrays form gates across strategic points in northern, middle, and southern bay.

Northern Array 

The northern array includes four receivers across the Bay near the Chesapeake Bay Bridge, close to Annapolis. This array, funded by NCBO, is operated in partnership with the Maryland Department of Natural Resources.

Southern Array 

This array is composed of 12 receivers near Virginia Beach. It is also funded by NCBO and is operated in partnership with the Virginia Marine Resources Commission.

Mid-Bay Array

This array of six receivers is managed by the University of Maryland Center for Environmental Science. It’s located near the mouth of the Patuxent River, on Maryland’s Western Shore.

NOAA Chesapeake Bay Interpretive Buoy System

All five buoys currently deployed in the NOAA Chesapeake Bay Interpretive Buoy System are outfitted with receivers.

Choptank River

We have placed three receivers in the Choptank River near oyster restoration projects. These receivers are on loan from NOAA Fisheries’ Northeast Fisheries Science Center.

Read the full story at NOAA Fisheries

5-Year Reviews for the Gulf of Maine, New York Bight, and Chesapeake Bay Distinct Population Segments (DPS) of Atlantic Sturgeon

February 17, 2022 — The following was released by NOAA Fisheries:

Today, NOAA Fisheries is releasing the 5-Year Reviews for the Gulf of Maine, New York Bight, and Chesapeake Bay Distinct Population Segments (DPS) of Atlantic sturgeon. These reviews summarize and evaluate new information on the status of each DPS and its major threats, using new data that has become available since the DPSs were listed in 2012.

Each DPS continues to be at a low level of abundance, and stressors including bycatch, vessel strikes, habitat loss and alteration, and global climate change lead us to recommend that the Gulf of Maine DPS remains listed as threatened, and the New York Bight and Chesapeake Bay DPSs remain listed as endangered. The reports further identify recommendations for future actions to promote the recovery of each of the Gulf of Maine, New York Bight, and Chesapeake Bay DPSs of Atlantic sturgeon. The 5-year reviews for the Carolina and South Atlantic DPSs of Atlantic sturgeon are on-going.

 

Researchers Study the Effects of Harmful Algal Blooms

December 1, 2021 — The sample bottle came back from the river, over the gunwale, and into the boat. The water sample was a dark reddish-brown, like strong, steeped tea that you are unable to see through. Literally tens of thousands of algal cells made up every drop of the water sample. Back at the laboratory, scientists at the Virginia Institute of Marine Science (VIMS) will analyze the sample to determine the type and density of algal species in the water. The samples, taken from the York River in the Southern Chesapeake Bay allow scientists to study harmful algal blooms, also called HABs. According to NOAA’s National Centers for Coastal and Ocean Science, almost every state in the nation now experiences some kind of HAB event. The number of hypoxic water bodies in the United States has increased 30 fold since the 1960s, with more than 300 coastal systems now impacted.

As you might guess from the name, the tiny microscopic organisms making up HABs are algae, which are a very diverse group of organisms. Phytoplankton are a type of algae usually responsible for creating blooms. Most often, these phytoplankton are made up of an equally diverse group of organisms known as dinoflagellates, which can be found in both fresh and marine waters.

Blooms Occur Worldwide

HABs are a growing concern worldwide, occurring in the Gulf of Mexico and surprising places such as the Alaskan Arctic. Globally warming water temperatures, a result of our changing climate, is one reason blooms are occurring more frequently and over a global scale.

Read the full story at NOAA Fisheries

Researchers map best conditions for forage fishes in the Chesapeake

October 28, 2021 — Big fish eat smaller fish, but only if there are smaller fish to eat. A new study led by researchers at William & Mary’s Virginia Institute of Marine Science maps the conditions most suitable for key species of forage fishes in the Chesapeake Bay, offering guidance for any future efforts to protect or restore the habitat required to yield sufficient prey for predatory fishes such as striped bass.

Lead author on the study, which appears in the October issue of Frontiers in Marine Science, is Dr. Mary Fabrizio, a professor and chair of Fisheries Science at VIMS. Co-authors are fellow VIMS researcher Dr. Troy Tuckey, along with Drs. Aaron Bever and Michael MacWilliams of Anchor QEA, LLC. Bever is a VIMS alum.

“Small fishes such as bay anchovy are important components of the diets of predatory fishes in Chesapeake Bay,” says Fabrizio, “but factors that affect local abundances of these  fish have been largely unexplored.”

To throw light on these factors, the research team set out to quantify and map suitable habitats for four common species of forage fishes in Bay waters, and to assess the relationship between habitat extent and fish abundance. In addition to bay anchovy, the forage species studied were juvenile spot, juvenile spotted hake, and juvenile weakfish.

The team based their study on data generated by counting the number of forage fishes caught in a trawl net during fishery surveys conducted by VIMS and the Maryland Department of Natural Resources between 2000 and 2016. These surveys sample at more than 100 sites throughout the Bay each month. They coupled these catch data with output from computer models simulating the environmental conditions at each sampling site. These conditions include water depth and temperature, salinity, stratification, dissolved-oxygen levels, and current speeds. The researchers also noted whether the bay floor beneath each net tow was sandy or muddy, and the distance to the nearest shoreline.

Read the full story at Phys.org