http://www.sciencedaily.com/news/plants_animals/fisheries/ Fisheries. Read the latest research on sustainable fisheries, threats to fishing, and the future of commercial fishing. en-us Sat, 26 May 2012 14:05:01 EDT Sat, 26 May 2012 14:05:01 EDT 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/plants_animals/fisheries/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2012/05/120524123019.htm Biologists have presented the first evidence that areas closed to all fishing are helping to sustain valuable Australian fisheries. The scientists applied a forensic DNA profiling approach to track the dispersal pathways of fish larvae throughout a network of marine reserves on Australia's Great Barrier Reef. Thu, 24 May 2012 12:30:30 EDT http://www.sciencedaily.com/releases/2012/05/120524123019.htm http://www.sciencedaily.com/releases/2012/05/120524112302.htm Recent surveys reveal an unprecedented number of young scallops in two fishery management areas off the mid-Atlantic coast. The results bode well for the continued success of the commercial fishery. Thu, 24 May 2012 11:23:23 EDT http://www.sciencedaily.com/releases/2012/05/120524112302.htm http://www.sciencedaily.com/releases/2012/05/120524092228.htm Scientists have new insight into which processes regulate long-term populations of sea urchins. New research includes an analysis of extraordinary episodes such as the violent storm that hit the Catalan coast on 26 December 2008, which caused the disappearance of around 80% of the population of sea urchins in the archipelago of the Medes and the Montgrí coast. Thu, 24 May 2012 09:22:22 EDT http://www.sciencedaily.com/releases/2012/05/120524092228.htm http://www.sciencedaily.com/releases/2012/05/120522175408.htm New fish-tagging studies of young bluefin tuna in the Atlantic off New England are offering the first fishery-independent, year-round data on dispersal patterns and habitat use for the popular game fish. Miniaturized pop-up satellite tags suitable for smaller fish helped make the research possible. Tue, 22 May 2012 17:54:54 EDT http://www.sciencedaily.com/releases/2012/05/120522175408.htm http://www.sciencedaily.com/releases/2012/05/120522135036.htm Powerful and versatile new genetic tools will assist in safeguarding both European fish stocks and European consumers. A new article details the first system shown to identify populations of fish species to a forensic level of validation. Tue, 22 May 2012 13:50:50 EDT http://www.sciencedaily.com/releases/2012/05/120522135036.htm http://www.sciencedaily.com/releases/2012/05/120522110301.htm As the popularity of marine aquariums rises, so does the demand for wildlife inhabiting them. Most aquarium fish are harvested from their natural habitats -- primarily coral reefs -- and imported into the United States by the millions annually. Tue, 22 May 2012 11:03:03 EDT http://www.sciencedaily.com/releases/2012/05/120522110301.htm http://www.sciencedaily.com/releases/2012/05/120521141824.htm Scientists have found evidence of antibiotics – one a suspected human carcinogen – in seafood imported into the United States and purchased from grocery store shelves. Mon, 21 May 2012 14:18:18 EDT http://www.sciencedaily.com/releases/2012/05/120521141824.htm http://www.sciencedaily.com/releases/2012/05/120521115136.htm A small pilot study found higher levels of toxic mercury in dolphins downwind of power plants than in captive dolphins. Mon, 21 May 2012 11:51:51 EDT http://www.sciencedaily.com/releases/2012/05/120521115136.htm http://www.sciencedaily.com/releases/2012/05/120516115906.htm Microscopes provide valuable insights in the structure and dynamics of cells, in particular when the latter remain in their natural environment. However, this is very difficult especially for higher organisms. Researchers have now developed a new method to visualize cell structures of an eighth of a micrometer in size in living fish larvae. Wed, 16 May 2012 11:59:59 EDT http://www.sciencedaily.com/releases/2012/05/120516115906.htm http://www.sciencedaily.com/releases/2012/05/120515151036.htm For the first time, researchers have peered inside a living mouse cell and mapped the processes that power the celebrated health benefits of omega-3 fatty acids. More profoundly, they say their findings suggest it may be possible to manipulate these processes to short-circuit inflammation before it begins, or at least help to resolve inflammation before it becomes detrimental. Tue, 15 May 2012 15:10:10 EDT http://www.sciencedaily.com/releases/2012/05/120515151036.htm http://www.sciencedaily.com/releases/2012/05/120514144729.htm As sea temperatures rise, stocks of some fish species can decline while others may grow, reveals new research looking at gastrointestinal function in fish. Mon, 14 May 2012 14:47:47 EDT http://www.sciencedaily.com/releases/2012/05/120514144729.htm http://www.sciencedaily.com/releases/2012/05/120514134305.htm Reticulated dragonet have been found in Väderöarna -- "Weather Islands" -- off the west coast of Sweden. It is not often that a new species of fish is discovered in Sweden. Mon, 14 May 2012 13:43:43 EDT http://www.sciencedaily.com/releases/2012/05/120514134305.htm http://www.sciencedaily.com/releases/2012/05/120514105001.htm The competition between farmers and fish for precious water in California is intensifying in wine country, suggests a new study by biologists. The study links higher death rates for threatened juvenile steelhead trout with low water levels in the summer and the acreage of vineyards upstream. Mon, 14 May 2012 10:50:50 EDT http://www.sciencedaily.com/releases/2012/05/120514105001.htm http://www.sciencedaily.com/releases/2012/05/120514104430.htm New research offers a blueprint for the long-term sustainability of tuna caught using the pole-and-line method. Mon, 14 May 2012 10:44:44 EDT http://www.sciencedaily.com/releases/2012/05/120514104430.htm http://www.sciencedaily.com/releases/2012/05/120509154240.htm Groupers, a family of fishes often found in coral reefs and prized for their quality of flesh, are facing critical threats to their survival. Scientists report that 20 species are at risk of extinction if current overfishing trends continue, and an additional 22 species are near "threatened" status. Wed, 09 May 2012 15:42:42 EDT http://www.sciencedaily.com/releases/2012/05/120509154240.htm http://www.sciencedaily.com/releases/2012/05/120509135939.htm Researchers have developed a new technique which allows them to measure brain activity in large populations of nerve cells at the resolution of individual cells. The technique has been developed in zebrafish to represent a simplified model of how brain regions work together to flexibly control behavior. Wed, 09 May 2012 13:59:59 EDT http://www.sciencedaily.com/releases/2012/05/120509135939.htm http://www.sciencedaily.com/releases/2012/05/120508103941.htm Jobs, livelihoods and ecotourism industries can benefit from having a diverse supply of weed-eating fish on the world's coral reefs, marine researchers say. Despite their small size, relative to the sharks, whales, and turtles that often get more attention, herbivorous fish play a vital role in maintaining the health of coral reefs, which support the livelihoods of 500 million people worldwide, say researchers. Tue, 08 May 2012 10:39:39 EDT http://www.sciencedaily.com/releases/2012/05/120508103941.htm http://www.sciencedaily.com/releases/2012/05/120503120500.htm Zebrafish behavior and the reliability of scientific results could be impacted if the environment zebrafish live in is altered, according to scientists. Thu, 03 May 2012 12:05:05 EDT http://www.sciencedaily.com/releases/2012/05/120503120500.htm http://www.sciencedaily.com/releases/2012/05/120502162441.htm Coelacanths are iconic fishes, well-known as ‘living fossils.’ A new extinct coelacanth is causing waves in the scientific community because it had a tuna-like forked tail and was probably a fast-moving, shark-like predator. This contrasts with living coelacanths, which are slow-moving fishes with peculiar broad tails bearing 3 lobes. Wed, 02 May 2012 16:24:24 EDT http://www.sciencedaily.com/releases/2012/05/120502162441.htm http://www.sciencedaily.com/releases/2012/05/120502091828.htm Researchers have for the first time succeeded in discovering the optimal escape response of fish using a supercomputer. The aim was to test whether the escape mechanism of small fish, developed in the course of evolution, is optimal for achieving the maximum escape distance in a short time. Wed, 02 May 2012 09:18:18 EDT http://www.sciencedaily.com/releases/2012/05/120502091828.htm http://www.sciencedaily.com/releases/2012/04/120430164355.htm Biologists suggest the delay in recovery of Atlantic cod on the eastern Scotian Shelf could be attributed to increased predation by grey seals or other governing factors and not the effect of forage fish as previously thought. Mon, 30 Apr 2012 16:43:43 EDT http://www.sciencedaily.com/releases/2012/04/120430164355.htm http://www.sciencedaily.com/releases/2012/04/120427095948.htm Breeding is on their minds, as the season draws to an end. Guys drop dead by the hour, making goby girls go all out in their hunt for a mate to father their offspring. Fri, 27 Apr 2012 09:59:59 EDT http://www.sciencedaily.com/releases/2012/04/120427095948.htm http://www.sciencedaily.com/releases/2012/04/120426105707.htm Smalleye pigmy sharks have an eye-catching party trick: Their bellies glow. However, instead of being a giveaway, biologists have shown that the fish's shiny undersides probably provide camouflage. They also discovered that the pigmy shark and another glowing fish, the lantern shark, regulate their glow using the similar mechanisms, although the pigmy shark is probably more closely related to their common ancient ancestor. Thu, 26 Apr 2012 10:57:57 EDT http://www.sciencedaily.com/releases/2012/04/120426105707.htm http://www.sciencedaily.com/releases/2012/04/120425094404.htm Researchers have for the first time analyzed a DNA fragment from commercial feed for aquarium cichlids, aquaculture of salmon and marine fish in aquariums. The results show that in order to manufacture this feed, eight species of high trophic level fish have been used, some of them coming directly from extractive fisheries. Wed, 25 Apr 2012 09:44:44 EDT http://www.sciencedaily.com/releases/2012/04/120425094404.htm http://www.sciencedaily.com/releases/2012/04/120424162218.htm A clinical trial is underway in Australia that is investigating the effects of fish oil as adjunct therapy for periodontitis. Tue, 24 Apr 2012 16:22:22 EDT http://www.sciencedaily.com/releases/2012/04/120424162218.htm http://www.sciencedaily.com/releases/2012/04/120423132013.htm For the first time, a numerical study incorporates horizontal larval fish navigation skills into realistic 3D flow fields, creating a powerful tool that spells out how larvae use environmental cues to find their way back to the reef after being out on the open ocean. This model can be used for a wide variety of marine species. Mon, 23 Apr 2012 13:20:20 EDT http://www.sciencedaily.com/releases/2012/04/120423132013.htm http://www.sciencedaily.com/releases/2012/04/120421203715.htm Asian carp now make up more than 60 percent of the total fish biomass in one of Illinois' major river systems. Sat, 21 Apr 2012 20:37:37 EDT http://www.sciencedaily.com/releases/2012/04/120421203715.htm http://www.sciencedaily.com/releases/2012/04/120420105334.htm Scientists have studied loggerhead turtles’ re-adaptation to the environment. The results show that after a lengthy recovery in rehabilitation centers these animals display changes in behavior and may not adapt well to being free. Fri, 20 Apr 2012 10:53:53 EDT http://www.sciencedaily.com/releases/2012/04/120420105334.htm http://www.sciencedaily.com/releases/2012/04/120418135343.htm Jellyfish are increasing in the majority of the world's coastal ecosystems, according to the first global study of jellyfish abundance. Wed, 18 Apr 2012 13:53:53 EDT http://www.sciencedaily.com/releases/2012/04/120418135343.htm http://www.sciencedaily.com/releases/2012/04/120418134849.htm A new investigation put in evidence the key role of cod as regulator of the whole Baltic Sea ecosystem. The study shows that when the cod population in the central Baltic increases, it spreads into larger areas and spills over into adjacent marginal systems where it usually does not occur, as for example the Gulf of Riga. Wed, 18 Apr 2012 13:48:48 EDT http://www.sciencedaily.com/releases/2012/04/120418134849.htm http://www.sciencedaily.com/releases/2012/04/120418095454.htm Understanding the damage that pollution causes to both wildlife and human health is set to become much easier thanks to a new green-glowing zebrafish. The fish makes it easier than ever before to see where in the body environmental chemicals act and how they affect health. The fluorescent fish has shown that estrogenic chemicals, which are already linked to reproductive problems, impact on more parts of the body than previously thought. Wed, 18 Apr 2012 09:54:54 EDT http://www.sciencedaily.com/releases/2012/04/120418095454.htm http://www.sciencedaily.com/releases/2012/04/120417152648.htm This Friday, April 20, will mark two years since the explosion aboard the Deepwater Horizon oil rig caused vast quantities of crude oil to flow into the Gulf of Mexico. But despite the size of the spill, "the natural recovery is far greater than what anybody hoped when it happened," said a professor of biology. "The fears of most people -- that there would be a catastrophic collapse of the ecosystem in the Gulf -- never materialized." Tue, 17 Apr 2012 15:26:26 EDT http://www.sciencedaily.com/releases/2012/04/120417152648.htm http://www.sciencedaily.com/releases/2012/04/120410210939.htm New research suggests that allowing more Pacific salmon to spawn in coastal streams will not only benefit the natural environment, including grizzly bears, but could also lead to more salmon in the ocean and thus larger salmon harvests in the long term -- a win-win for ecosystems and humans. In a new article, researchers investigate how increasing "escapement" -- the number of salmon that escape fishing nets to enter streams and spawn -- can improve the natural environment. Tue, 10 Apr 2012 21:09:09 EDT http://www.sciencedaily.com/releases/2012/04/120410210939.htm http://www.sciencedaily.com/releases/2012/04/120410163537.htm There have been many scientific studies looking at the levels of toxic mercury (Hg) in fish. After all, fish can end up directly on our plate. However, far fewer studies have examined Hg levels in aquatic insects. This is a significant oversight because aquatic insects are an important source of Hg to fish and even terrestrial wildlife. Tue, 10 Apr 2012 16:35:35 EDT http://www.sciencedaily.com/releases/2012/04/120410163537.htm http://www.sciencedaily.com/releases/2012/04/120410093318.htm The first Danish study into how one of the worlds largest wind farms affects marine life is now completed. It shows that the wind turbines and the fish live quite happily together. Indeed some species of fish have actually increased in number. Tue, 10 Apr 2012 09:33:33 EDT http://www.sciencedaily.com/releases/2012/04/120410093318.htm http://www.sciencedaily.com/releases/2012/04/120404133751.htm Three-spine sticklebacks aren't as pretty as many aquarium fish, and anglers don't fantasize about hooking one. But biologists treasure these small fish for what they are revealing about the genetic changes that drive evolution. Now, researchers have sequenced the stickleback genome for the first time, and they have discovered that as fish in different parts of the world adapted to live in fresh water, the same sites in the genome were changed time and again. Wed, 04 Apr 2012 13:37:37 EDT http://www.sciencedaily.com/releases/2012/04/120404133751.htm http://www.sciencedaily.com/releases/2012/04/120404101812.htm A new study is the first to identify a neurobehavioral effect of BPA using a zebrafish model exposed to concentrations comparable to what humans might encounter in the environment. Wed, 04 Apr 2012 10:18:18 EDT http://www.sciencedaily.com/releases/2012/04/120404101812.htm http://www.sciencedaily.com/releases/2012/04/120403193839.htm You are what you eat is truism that has been given new impetus by "cutting edge" research that reveals your teeth are literally shaped by your food. Tue, 03 Apr 2012 19:38:38 EDT http://www.sciencedaily.com/releases/2012/04/120403193839.htm http://www.sciencedaily.com/releases/2012/04/120402112826.htm The grey seals in the Baltic Sea compete for fish with the fishing industry. The seals locally eat about the same quantities of cod, common whitefish, salmon, sea trout and eel as those taken by fishermen, according to new research. Mon, 02 Apr 2012 11:28:28 EDT http://www.sciencedaily.com/releases/2012/04/120402112826.htm http://www.sciencedaily.com/releases/2012/04/120401195759.htm Fishing for herring, anchovy, and other "forage fish" in general should be cut in half globally to account for their critical role as food for larger species, recommends an expert group of marine scientists. Sun, 01 Apr 2012 19:57:57 EDT http://www.sciencedaily.com/releases/2012/04/120401195759.htm http://www.sciencedaily.com/releases/2012/03/120330205924.htm Scientists working in the central Pacific have discovered that coral which has survived heat stress in the past is more likely to survive it in the future. The study paves the way towards an important road map on the impacts of ocean warming, and will help scientists identify the habitats and locations where coral reefs are more likely to adapt to climate change. Fri, 30 Mar 2012 20:59:59 EDT http://www.sciencedaily.com/releases/2012/03/120330205924.htm http://www.sciencedaily.com/releases/2012/03/120330164856.htm As any comic book lover knows, when superheroes band together the bad guys fall harder. The strength that comes in numbers is greater than the sum of its parts. The same holds true, researchers have recently learned, when different species of crabs and snapping shrimp in the central Pacific band together to defend their coral homes from hungry seastars. Fri, 30 Mar 2012 16:48:48 EDT http://www.sciencedaily.com/releases/2012/03/120330164856.htm http://www.sciencedaily.com/releases/2012/03/120330123218.htm The decline of Caribbean coral reefs has been linked to the recent effects of human-induced climate change. However, new research suggests an even earlier cause. The bad news – humans are still to blame. The good news – relatively simple policy changes regarding land use and fishing activity can hinder further coral reef decline. Fri, 30 Mar 2012 12:32:32 EDT http://www.sciencedaily.com/releases/2012/03/120330123218.htm http://www.sciencedaily.com/releases/2012/03/120328122843.htm Many consumers want to increase their intake of heart-healthy n-3 fatty acids, found naturally in fish and fish products, but find it difficult to consume the levels recommended by the American Heart Association. Scientists have now demonstrated that it may be possible to achieve the suggested daily intake in a single serving of a savory-flavored yogurt, providing an easily incorporated dietary source for these valuable fatty acids. Wed, 28 Mar 2012 12:28:28 EDT http://www.sciencedaily.com/releases/2012/03/120328122843.htm http://www.sciencedaily.com/releases/2012/03/120328113330.htm Anglers are required to use circle hooks in some fishing tournaments because they are less likely to cause lethal injuries in billfish, such as marlin. However, new research shows that broadening circle hook requirements could adversely impact charter and recreational fishing, since they make it more difficult to catch non-billfish. Wed, 28 Mar 2012 11:33:33 EDT http://www.sciencedaily.com/releases/2012/03/120328113330.htm http://www.sciencedaily.com/releases/2012/03/120328090941.htm As corals continue to decline in abundance around the world, researchers are turning their attention to a possible cause that's almost totally unexplored -- viral disease. It appears that corals harbor many different viruses -- particularly herpes. They also are home to the adenoviruses and other viral families that can cause human colds and gastrointestinal disease. Wed, 28 Mar 2012 09:09:09 EDT http://www.sciencedaily.com/releases/2012/03/120328090941.htm http://www.sciencedaily.com/releases/2012/03/120326133633.htm Bottlenose dolphins in Barataria Bay, Louisiana, are showing signs of severe ill health, according to marine mammal biologists. Barataria Bay, located in the northern Gulf of Mexico, received heavy and prolonged exposure to oil during the Deepwater Horizon oil spill. Mon, 26 Mar 2012 13:36:36 EDT http://www.sciencedaily.com/releases/2012/03/120326133633.htm http://www.sciencedaily.com/releases/2012/03/120323094004.htm In the search for sustainability of the ocean's fisheries, solutions can be found in a surprising place: the ancient past. Marine scientists reconstructed fisheries yields over seven centuries of human habitation in Hawaii and the Florida Keys, the largest coral reef ecosystems in the United States, and evaluated the management strategies associated with periods of sustainability. The results surprised them. Fri, 23 Mar 2012 09:40:40 EDT http://www.sciencedaily.com/releases/2012/03/120323094004.htm http://www.sciencedaily.com/releases/2012/03/120319163807.htm A new study indicates that "co-management" -- a collaborative arrangement between local communities, conservation groups, and governments -- provides one solution to a vexing global problem: overfishing. Mon, 19 Mar 2012 16:38:38 EDT http://www.sciencedaily.com/releases/2012/03/120319163807.htm http://www.sciencedaily.com/releases/2012/03/120319111825.htm Researchers have used a surgically implanted device to record the habits of snakes in their natural environment for the first time. This particular study holds promise in "keeping score" as Ohio's Lake Erie water snake defends its native habitat against an invasive fish species. Mon, 19 Mar 2012 11:18:18 EDT http://www.sciencedaily.com/releases/2012/03/120319111825.htm http://www.sciencedaily.com/releases/2012/03/120319094518.htm Patients with relapsing onset Multiple Sclerosis (MS) who consumed alcohol, wine, coffee and fish on a regular basis took four to seven years longer to reach the point where they needed a walking aid than people who never consumed them. However the study did not observe the same patterns in patients with progressive onset MS. Mon, 19 Mar 2012 09:45:45 EDT http://www.sciencedaily.com/releases/2012/03/120319094518.htm http://www.sciencedaily.com/releases/2012/03/120315113007.htm Special conservation zones known as marine protected areas provide many direct benefits to fisheries and coral reefs. However, such zones appear to offer limited help to corals in their battle against global warming, according to a new study. Thu, 15 Mar 2012 11:30:30 EDT http://www.sciencedaily.com/releases/2012/03/120315113007.htm http://www.sciencedaily.com/releases/2012/03/120315095801.htm Fishing for a "balanced harvest" can achieve productive fisheries as well as environmental conservation, an international scientific team reports. Thu, 15 Mar 2012 09:58:58 EDT http://www.sciencedaily.com/releases/2012/03/120315095801.htm http://www.sciencedaily.com/releases/2012/03/120315095519.htm Aggressive American signal crayfish are threatening Britain's native white-clawed crayfish populations because they have better resistance to parasites and are less fussy about what they eat. Thu, 15 Mar 2012 09:55:55 EDT http://www.sciencedaily.com/releases/2012/03/120315095519.htm http://www.sciencedaily.com/releases/2012/03/120312140314.htm A marine biologist gets an occasional strange look when she brings fish to Rhode Island Hospital. While the facility's microCT scanner is typically used to study bone density and diseases like osteoporosis, it is also providing new insights into the skull structure and sensory systems of fish. Mon, 12 Mar 2012 14:03:03 EDT http://www.sciencedaily.com/releases/2012/03/120312140314.htm http://www.sciencedaily.com/releases/2012/03/120308192318.htm Young coral reef fish use sounds, smells and visual cues to find their nursery grounds, according to new research. By testing how young French grunts (a common fish in Curaçao and throughout the Caribbean) responded to local sounds, smells and visual cues, the researchers have unlocked, for the first time, the mystery of how centimeter-long juvenile fish can navigate from the high seas to find their shoal mates in amongst the roots of mangrove trees or blades of seagrass. Thu, 08 Mar 2012 19:23:23 EST http://www.sciencedaily.com/releases/2012/03/120308192318.htm http://www.sciencedaily.com/releases/2012/03/120308174645.htm Scientists have used video cameras to count Caribbean reef sharks (Carcharhinus perezi) inside and outside marine reserves on the Mesoamerican Barrier Reef in the Caribbean Sea. Using survey data collected from 200 baited remote underwater video cameras, nicknamed "chum cams," the scientists compared the relative abundance of these reef sharks in two marine reserves with those in two areas where fishing is allowed, and demonstrated that the sharks were more abundant in the reserves. Thu, 08 Mar 2012 17:46:46 EST http://www.sciencedaily.com/releases/2012/03/120308174645.htm http://www.sciencedaily.com/releases/2012/03/120306131356.htm Common carp and Louisiana red swamp crayfish are some of the most invasive species on the planet yet how they interact has been poorly understood until now. Scientists investigated their relationship in the waters of Kenya's Lake Naivasha over eight years. Tue, 06 Mar 2012 13:13:13 EST http://www.sciencedaily.com/releases/2012/03/120306131356.htm http://www.sciencedaily.com/releases/2012/03/120305132534.htm The problem with environmentally friendly biofuels is the ever-increasing amount of farmland necessary to produce these crops diverts it from food production. Now researchers are exploring common seaweed as a viable alternative. Mon, 05 Mar 2012 13:25:25 EST http://www.sciencedaily.com/releases/2012/03/120305132534.htm http://www.sciencedaily.com/releases/2012/03/120305132430.htm Sawfishes wouldn't be sawfishes if they didn't come equipped with long toothy snouts -- their saws. Now, researchers have figured out what they use those saws for, and it turns out the answer is quite impressive. The saws themselves have tiny sensors that enable sawfishes to detect the electric fields of other nearby animals. Mon, 05 Mar 2012 13:24:24 EST http://www.sciencedaily.com/releases/2012/03/120305132430.htm