Seaweed-eating fish are becoming increasingly voracious as the ocean warms due to climate change and are responsible for the recent destruction of kelp forests off the NSW north coast near Coffs Harbour, research shows. The study includes an analysis of underwater video, covering a 10-year period between 2002 and 2012, during which the water warmed by 0.6 degrees. “Kelp forests provide vital habitat for hundreds of marine species, including fish, lobster and abalone,” says study first author Dr Adriana Vergés of UNSW and the Sydney Institute of Marine Science.
The longest living animal in the ocean, known as the quahog clam, can tell scientists about the ancient history of the North Atlantic Ocean. It has shown them how the ocean’s role as a driver of atmospheric climate has considerably changed over this long period of time. The quahog clam – also referred to as hard clam – is an edible mollusc found in the eastern shores of North and Central America. Incredibly, it can live over 500 years. In a new study published in Nature Communications scientists have shown how useful the quahog clam can be to journey back in the past and study the evolution oceans have faced over many years.
In a new study, researchers from North Carolina State University found that a specific neurotoxin can persist and accumulate in “marine snow” formed by the algae Pseudo-nitzschia, and that this marine snow can reach significant depths quickly. These findings have implications for food safety policies in areas affected by toxic marine algal blooms.
But dietary guidelines say we should be eating more. The average American consumed 15.5 pounds of seafood last year, nearly a pound more than in 2014, according to a new government report.
If you were to stare down into one of a few dozen intertidal pools at low tide, as waves glide in and out, you might have a hard time spotting the robots. That’s because they look just like the real mussels that surround them. “It’s a problem finding them again,” said Brian Helmuth, a professor of marine science and public policy at Northeastern University, “because they do look so much like mussels.”The robotic mussels, which were devised about 18 years ago by Dr. Helmuth, contain little thermometers and data loggers that record the temperature every 10 minutes, approximating the internal temperature of the actual mussels nearby.
Amid efforts to restore native oyster populations on the West Coast, how are oysters expected to fare under climate change in the decades and centuries to come? Not too badly, according to a study from the University of California, Davis. But there’s a big “if” involved.
A new study finds that unusually warm Pacific Ocean temperatures helped cause a massive bloom of toxic algae last year that closed lucrative fisheries from California to British Columbia and disrupted marine life from seabirds to sea lions.
Baby lobsters might not be able to survive in the ocean’s waters if the ocean continues to warm at the expected rate.
In 2015, Maine fishermen brought in 452,672 pounds of scallop meat valued at $12.70 per pound—the highest in years. But scallops haven’t always done well in Maine and beyond. In the 1990s, after huge reductions in multiple fishery landings, including giant sea scallops, NOAA regulators instituted large fishing closures to try to bolster groundfish stocks. After four years, scallop stocks had increased 14 times what they were prior to the closure. Seeking a similar success story, Maine followed suit in 2009 and instituted a three-year scallop fishing closure.
Biological growth along the bottoms of boats is more than just an eyesore. Biofouling, as it is known, slows down ships and impedes the readiness of emergency response and military vessels. A new study identifies key developmental steps these organisms must take to metamorphose from their larval to adult state. Understanding this process could lead to new technologies to prevent the organisms from attaching to ships in the first place.
New England is running out of mussels. The Gulf of Maine’s once strong population of wild blue mussels is disappearing, scientists say. A study led by marine ecologists at the University of California at Irvine found the numbers along the gulf coastline have declined by more than 60 percent over the last 40 years.
Crabs and lobsters are drawn to a totally synthetic bait, which could reduce the large take of live baitfish from the sea