Saving Seafood

These fish started life as boys. Now scientists aren’t sure what sex they are.

For male smallmouth bass, sex change is increasingly not an option. In the chemical-laced Chesapeake Bay watershed and in rivers up through New England, it comes with the territory.

Based on the latest U.S. Geological Survey on intersex fish, 85 percent of male smallmouth bass in waters in and around national wildlife refuges in the Northeast have developed “characteristics of the opposite sex.” That’s in addition to 90 percent of the species in some West Virginia waters and 50 percent to 100 percent in the southern stretch of the Potomac River. All of the affected fish had eggs where their testes should be, according to previous studies.

Why this is happening remains a mystery, says the lead author of a new study, despite the problem being detected more than a decade ago. “It is not clear what the specific cause of intersex is in these fish,” said Luke Iwanowicz, a USGS research biologist. “This study was designed to identify locations that may warrant further investigation.”

Read the full story from the Washington Post

Could invasive lionfish end up in Chesapeake Bay?

December 29, 2015 — Few fish are as lovely as the lionfish. Few are as venomous.

A frilly, colorful native of the clear tropical waters and reefs of the South Pacific and Indian oceans, the lionfish has been a favorite of aquarium hobbyists for years.

In the Atlantic, however, it was unknown.

Then in the 1980s genetic researchers believe a handful of hobbyists in Florida, perhaps thinking it a kindness, released their aquarium pets into the wild ocean.

At that point, the lionfish proved they aren’t just lovely and venomous — they also breed like rabbits on Viagra. Ravenous eaters, they gobble up any smaller fish they spot and easily displace native species. And because nothing in this part of the Atlantic recognizes them as prey, their population has exploded into a serious and unfortunate marine invasion.

“It’s gotten really bad,” said Richard Brill, fishery biologist at the Virginia Institute of Marine Science in Gloucester Point.

“There’ve been some efforts in Florida and some parts of the Caribbean to get people to eat them. And there’s been some efforts — and this is pretty crazy — but groups of recreational spear fishermen have been spearing them and then feeding what they catch to sharks, trying to convince the local shark population to eat these things.”

The hardy little invaders have established year-round populations from the Gulf of Mexico to the Outer Banks. They’ve been spotted in warmer months as far north as Massachusetts, although they can’t survive the northern winters.

Read the full story at the Hampton Roads Daily Press

 

Scientists worry that the Chesapeake’s natural shoreline is turning into a wall

December 26, 2015 — On the banks of the Potomac River, construction cranes that look like metal dinosaurs tower over Southwest Washington. They swivel in all directions, delivering concrete and other heavy material to workers building a large development behind a steel-and-concrete wall that holds back the water.

Within two years, the Wharf will begin emerging as a playground of trendy apartments, shops and entertainment venues. But below the river’s surface, animals that depend on vegetation in the water may continue to struggle, marine scientists say.

The Wharf is part of the great wall of the Chesapeake Bay. Because of development along the bay and its rivers, vast swaths of soft shorelines have been turned into stone. The spread of what scientists call “the armored shore” is depriving young fish, crabs and other organisms of food and shelter. And it is yet another reason why life in the bay is disappearing, according to new research funded by the National Oceanic and Atmospheric Administration.

Houses, offices, bike paths, marinas — and walls built to protect them from erosion and rising sea levels — are replacing marshy shores, uprooting plants that young fish, crabs and other organisms use for food.

Read the full story at The Washington Post

 

Bay anchovies appear to be more important than menhaden in predators’ diets

December 7, 2015 — The Chesapeake Bay may be the best-studied estuary in the world, but a group of scientists attending a recent workshop were surprised about how little they knew about what predatory fish eat.

After all, menhaden — dubbed by some as the “most important fish in the sea” would also be the “most important” fish in the Bay, right?

Apparently not. That honor, were one species to be singled out, might belong to the tiny bay anchovy — a fish that rarely grows more than 3–4 inches in length and typically doesn’t live longer than a year.

“They’re the most abundant fish in the Bay,” said Ed Houde, a fisheries scientist with the University of Maryland Center for Environmental Science, who helped organize the workshop. “They’re really important in the Bay’s food web.”

An analysis of 12 years of Baywide diet information for five major predators prepared for the workshop found that bay anchovy was a significant portion of the diet for four of those species. Menhaden was important for only one, striped bass, and even for them, bay anchovy were more important.

“Menhaden came out not as high on the list as people thought it was going to be,” Houde said. “It was an important prey, but it certainly wasn’t in the top three or four.”

Even more significantly, the analysis showed that the Bay’s food web is less of a fish-eat-fish world than popularly thought, even among many scientists. A host of unheralded species, from worms to clams to crustaceans, are major food sources for the Chesapeake’s predatory fish.

Read the full story at Bay Journal

 

VIRGINIA: Special Investigation: Big fight over little fish

November 12, 2015 — REEDVILLE, Va. – Small business owners along the Chesapeake Bay are concerned that commercial fishing by Omega Protein is hurting their livelihood. Both rely on catching menhaden, a small bony fish that is valuable to Omega for its oil and bone meal, as well as for bait to charter boat captains and crabbers.

Omega has fished for menhaden out of Reedville since the 1870’s. It hauls in millions of them each weekday during a fishing season that is quota-based and runs roughly from May to November.

10 On Your Side visited the Reedville operation and spoke with several employees about the company’s importance to the community. We also met with a charter boat captain who is convinced that Omega’s large hauls are hurting his business along with hundreds of others – marinas, crabbers, tackles shops, etc.

“Used to be these creeks would just be chocked full of menhaden flipping all over the surface,” said Chris Newsome, owner of Bay Fly Fishing in Gloucester. Newsome’s charter clients fish for striped bass, bluefish, speckled trout and redfish, and they feed on menhaden. “They’ve definitely become a lot harder to find over the years.”

Read the full story at WAVY

Atlantic Striped Bass Fishing in the EEZ: Restrictions Support Sustainability of Species

November 12, 2015 — The following was released by the NOAA Fisheries Office of Law Enforcement:

In an effort to ensure the healthy population of the striped bass in the Mid-Atlantic region, NOAA’s Office of Law Enforcement (OLE) is raising awareness of the federal regulations governing striped bass in the Exclusive Economic Zone (EEZ) and increasing targeted enforcement efforts to protect the species from illegal poaching activities.

“Right now, the striped bass are beginning to migrate south from the northern states,” said Lt. Wynn Carney, OLE supervisory enforcement officer. “The striped bass will follow the bait south near the mouth of the Chesapeake Bay, and in spring they will begin making their way up our streams and rivers to lay eggs.” 

According to the Atlantic States Marine Fisheries Commission, overfishing and poor environmental conditions lead to the collapse of the Atlantic striped bass fishery in the 1980s.

In order to ensure the sustainability of the species, the Atlantic Coastal Fisheries Cooperative Management Act, found in Title 50 of the Code of Federal Regulations part 697.7, was promulgated. Thus, during the months of November through February, NOAA Office of Law Enforcement is joining state and federal marine law enforcement organizations in supporting a focused enforcement effort, targeting vessels retaining and fishing for striped bass in the EEZ. Marine law enforcement officers, including OLE and the U.S. Coast Guard, in the Mid-Atlantic will be ticketing fishermen who violate these regulations and who target striped bass within the EEZ.

“I am excited about the Mid-Atlantic States conducting a focused enforcement effort,” said Carney. “It’s significant that we’re working together toward a common goal.”

For maximum enforcement, officers will be conducting at-sea, aerial, and dock-side inspections.

For more information, call your local OLE field office or visit http://www.asmfc.org/species/atlantic-striped-bass.

‘Ghost fleet’ offers treasure trove of wildlife, history in the Potomac

November 2, 2015 — NANJEMOY, Md. — Hidden beneath the waters of the Potomac River are dozens of sunken ships known as a “ghost fleet” that sailed from the Revolutionary War to after World War I, and now, thanks to the Chesapeake Conservancy, the public can experience these underwater ships and the unique ecosystem that has grown around them from their desktops.

The conservancy has teamed up with Terrain360, a Richmond, Virginia, company, to take panoramic shots of Mallows Bay and the more than 100 shipwrecks located there, piecing them together to create a virtual tour of the bay that you can find here.

The bay, tucked along the shores of the Potomac River in Charles County, Maryland, is home to the largest collection of historic shipwrecks in the Western Hemisphere. But the sunken ships have also created a marine habitat full of fish, birds and other wildlife, which the conservancy hopes to protect.

Visitors to the bay will spot an engine rising from the mist. Trees growing from the hull of a sunken ship seem to form an island that’s shaped like a ship. And the rusty hull of another ship can be seen rising above the waterline further out from the shore. Nearby is a menhaden fishing boat dating to the 1940s that was used during World War II.

Read the full story at WTOP

 

Congress cracks down on seafood fraud

October 28, 2015 — Local watermen of the Chesapeake Bay have come under attack from knowingly imported and mislabeled foreign seafood. Consumers are also at risk because safety standards for seafood in other countries of origin differ from those in the United States. “Consumers should protect themselves with knowledge about these issues and get to know local seafood companies they can trust,” said Paula Jasinski, executive director of Chesapeake Environmental Communications.

Crabbers from Virginia’s Blue Crab Industry Panel highlighted this significant problem for their industry several years ago.

Read the full story at Northern Neck News

 

NEW YORK: Woman Among the Baymen

October 23, 2015 — “Clam Power” read the T-shirt on the sturdy woman carrying gear from her pickup to her no-frills work boat tied to a ramshackle dock in Patchogue, on the South Shore of Long Island.

The woman, Flo Sharkey, 72, works full time on the bay, and on Wednesday morning, she and her son, Paul Sharkey, 36, a bayman himself, loaded rakes, hip waders and bushel baskets into the boat and headed out through Swan Creek into the open bay.

People who make their living on these waters are known as baymen, and it’s a dwindling profession. A woman doing it for a living is nearly unheard-of.

Ms. Sharkey said she knew of no other baywomen. Her sister and mother could hold their own on the water but elected not to make it their life’s work.

Ms. Sharkey has often kept side jobs — these days, she moonlights as a school custodian — but clamming has been her mainstay on the Great South Bay, just off Fire Island.

“Years ago, this was the most productive bay in the country, except for the Chesapeake, for crabs, clams and fish,” Ms. Sharkey said as the boat bounded across the shimmering flat water toward a shallow spot. “But then came the brown tide, the road runoff and fertilizer off people’s lawns.”

With those factors affecting the abundance and health of the clams, much of the bay is now off limits for shellfishing. Weaker market prices and the ever-rising cost of living are other reasons that there were a mere two other clam boats off in the distance, compared with the hundreds that would have been seen years back.

Read the full story at The New York Times