IN BRIEF - Thousands of clams crowd the shore in Newport Beach
Saturday, May 20, 2017
Go out to Newport Pier this week at low tide and you’ll see copious amounts of tiny clams.
Thousands upon thousands of them — glinting like upended jellybeans in pearlescent shades of apricot, violet, cobalt and gray — have turned the beach into a field of living pebbles among the kelp clumps and scallop shells that the tide typically leaves behind.
Bruno Pernet, a professor of invertebrate biology at Cal State Long Beach, identified the fingernail-size organisms as donax gouldii, or bean clams. He speculated that a particularly large clam baby boom could have led to crowding under the sand that pushed some closer to the surface.
Rather it's a spa that is keeping 1400 tiny eels alive in the country's only eel rearing facility at the Foxton Wildlife Trust in Horowhenua.
Muaupoko iwi has set up a highly successful aquaculture programme, which is helping rejuvenate the population of tuna (longfin eel) in Lake Horowhenua, but when the temperature dropped in winter at the facility, so did the eel survival rate.
Robert Warrington has been working on the project since its inception, and was stumped as to why the eels began to die.
Aquaculture Systems Technologies LLC, a tenant at LSU Innovation Park, has won a USD 94,000 federal grant to demonstrate a waste control process for use in growing shrimp in small family-owned tank facilities.
About half the shrimp consumed worldwide are produced in ponds, Innovation Park officials said. The ponds depend on internally grown bacteria, known as biofloc, to reduce wastes produced by the shrimp and purify the water. U.S. farmers, who have been growing shrimp in tanks for niche marketing to sushi bars and restaurants, have difficulty controlling the unstable biofloc systems.
Aquaculture Systems produces floating bead filters that are used to purify water for aquaculture tanks, zoos and a variety of wastewater systems.
In a recent trip to Peterhead, David Mundell, the Scottish Secretary, lifted up a giant cod for the media to photograph. It was hard to decide who looked the more startled suddenly to be hailed as the fishermen’s friend, Mundell or the dead cod.
Cod, as a stock, has seen an impressive comeback in recent months. So has the Tory brand, particularly in the heartlands of Scotland’s fishing industry, the North East. What makes the revival remarkable is that it has come as a direct result of Brexit.
Indeed “hard Brexit” is seen by many as the potential saviour of an industry that has been too long in the doldrums. Orders for new boats are up and former crewmen are clamouring to get back to sea. Far from revivifying the independence dream there is now the very real prospect that Britain’s withdrawal from the EU, and consequently from the Common Fisheries Policy (CFP) and the Common Agricultural Policy (CAP), could actually trigger its demise.
With a growing population, the world is looking more and more to the ocean as a source of food. But wild stocks of fish and other seafoods are being overexploited in many areas. Now, a study from UCLA suggests that if fish farming can be moved offshore, then an area of sea the size of Lake Michigan (0.025 percent of the ocean's surface), could meet the global demand for fish and allow wild stock to recover.
Fish is big business. According to the Food and Agriculture Organization of the United Nations, global per capita fish consumption exceeded 20 kg (44 lb) for the first time in 2016. That works out to exports of 73.8 million tonnes worth USD 148 billion. Seafood is a major source of protein in many parts of the globe and nutritionists claim that diets with higher percentages of fish are healthier.
The trouble is, the wild fish stocks are under severe pressure from the growing demand, with 57 percent of the stocks overfished to the point of population decline, and another 30 percent classed as overexploited or recovering.
The P.E.I. government had to end its relationship with the P.E.I. Shellfish Association for an oyster enhancement program, it says, because the association was unable to supply necessary documentation from the 2016 program.
The association had for years been operating a program that spread oyster spat on public shellfish beds. But its funding was cut this year, and the province is now looking for a new contractor to perform the service.
Former directors of the association have complained the province cut its funding after disagreements over how the program was running and other industry issues.
Nearly every coastal country in the world has the potential to meet its own domestic seafood needs through aquaculture, suggests a new study.
Aquaculture is the farming of freshwater and saltwater aquatic organisms, including fish, crustaceans and molluscs such as oysters and mussels. The practice is the fastest-growing food sector, and it is hoped that aquaculture could help address increasing issues of food insecurity around the globe.
New research now reveals that most coastal countries could meet their own domestic seafood needs using a tiny fraction of their ocean territory, demonstrating the oceans’ potential to support aquaculture.
With the UK leaving the EU and withdrawing from the London Fisheries Convention, the fishing industry could undergo drastic changes. The sector includes 24 fish producer organisations (POs), which are membership organisations made up of fishermen.
The UK will also be leaving the EU’s Common Fishery Policy, a set of rules through which European fishing fleet and fish stock are managed.
Recently reformed in 2014, the CFP gives all European fishing fleets equal access to EU waters and fishing grounds with the aim of creating fair competition. The current policy stipulates that between 2015 and 2020 catch limits should be set that are sustainable and maintain fish stocks in the long term.
Covering 70 percent of Earth's surface, the world's oceans are vast and deep. So vast, in fact, that nearly every coastal country has the potential to meet its own domestic seafood needs through aquaculture. In fact, each country could do so using a tiny fraction of its ocean territory.
So finds a study led by scientists from UC Santa Barbara and including researchers from the Nature Conservancy, UCLA and the National Oceanic and Atmospheric Administration. Their research, published in the journal Nature Ecology and Evolution, demonstrates the oceans' potential to support aquaculture. Also known as fish farming, the practice is the fastest-growing food sector, and it's poised to address increasing issues of food insecurity around the globe.
"There is a lot of space that is suitable for aquaculture, and that is not what's going to limit its development," said lead author Rebecca Gentry, who recently completed her Ph.D. at UCSB's Bren School of Environmental Science & Management. "It's going to be other things such as governance and economics."