fishery

Half of consumed fish is raised on farms

harminka — Tue, 08 Sep 2009 02:48:58 -0500

Aquaculture, once a fledgling industry, now accounts for 50 percent of the fish consumed globally, according to a new report by an international team of researchers. And while the industry is more efficient than ever, it is also putting a significant strain on marine resources by consuming large amounts of feed made from wild fish harvested from the sea, the authors conclude.

Healthy fish ensures good fishery managemnet

harminka — Mon, 10 Aug 2009 02:08:02 -0500

Recreational anglers and commercial fishermen understand you need good fishery management to make sure there will be healthy populations of fish for generations to come. And making good management decisions rests in large part on understanding the mortality of fish species – how many fish die each year as a result of natural causes and recreational and commercial fishing.

Analysis Suggests Marine Ecosystems Can Recover

harminka — Fri, 31 Jul 2009 03:15:08 -0500

An international team of scientists with divergent views on ocean ecosystems has found that efforts to rebuild many of the world’s fisheries are worthwhile and starting to pay off in many places around the world. Their study puts into perspective recent reports predicting a total collapse of global fisheries within 40 years.

Gulf Fisheries Threatened by Low Apalachicola River flow

harminka — Sat, 20 Jun 2009 01:12:30 -0500

Reductions in the flow of the Apalachicola River have far-reaching effects that could prove detrimental to grouper and other reef fish populations in the northeastern Gulf of Mexico, according to a new Florida State University study that may provide new ammunition for states engaged in a nearly two-decade water war.

Chemical come-on successfully lures lovesick lampreys to traps

harminka — Wed, 21 Jan 2009 14:01:43 -0600

A synthetic chemical version of what male sea lampreys use to attract spawning females can lure them into traps and foil the mating process of the destructive invasive species, according to Michigan State University scientists.

Nile Delta fishery grows dramatically thanks to run-off of sewage

harminka — Tue, 20 Jan 2009 12:57:22 -0600

While many of the world's fisheries are in serious decline, the coastal Mediterranean fishery off the Nile Delta has expanded dramatically since the 1980s.

Shrimp trawling may boost mercury in red snapper

harminka — Thu, 27 Nov 2008 06:40:07 -0600

Fishery experts have known for years that shrimp trawling operations in the Gulf of Mexico are contributing to sharp declines in the ranks of Red Snapper, one of the most delicious and popular marine fish on the seafood menu.

Best hope at sustainable fisheries

harminka — Tue, 26 Aug 2008 14:13:48 -0500

Small scale fisheries produce as much annual catch for human consumption and use less than one-eighth the fuel as their industrial counterparts, but they are dealt a double-whammy by well-intentioned eco-labelling initiatives and ill-conceived fuel subsidies, according to a University of British Columbia study.

Does fishing endanger survival of tropical tuna?

harminka — Fri, 30 May 2008 05:08:33 -0500

Fishermen hold empirical knowledge that tuna aggregate under floating objects, such as lengths of old rope, pieces of wood, or even large marine mammals. There is still no full explanation for this aggregation behaviour, but the past 20 years have seen purse-seine fishery operators take advantage of the associated concentrations of fish.

Researchers challenge analyses on sustainability of Gulf fisheries

harminka — Tue, 19 Feb 2008 02:41:37 -0600

Louisiana’s coastal fisheries produce approximately 25 percent of the total catch by weight in the lower 48 states. With such a substantial portion of the nation’s economy dependant on the state of these waters – particularly the Gulf of Mexico region – it comes as no surprise that these fisheries are heavily monitored and scrutinized by researchers across the globe.

To save or savor? It's decision time for Atlantic bluefin tuna

harminka — Mon, 18 Feb 2008 12:57:11 -0600

Giant bluefin tuna are in trouble, primarily because the powerful muscles that propel their extensive ocean migrations come with an Achilles' heel: They're tasty.

Learning from cod collapse to save tuna

harminka — Mon, 18 Feb 2008 12:39:03 -0600

Continued mismanagement could force some tuna populations to quickly go the way of cod, a highly threatened fishery that once helped shape economies of whole nations, leading scientists said in the symposium “Last Best Chance for Tuna: Learning from the Cod Collapse” at the American Association for the Advancement of Science (AAAS) Annual Meeting in Boston on February 18.