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News articles on Fish
Mongabay.com news articles on Fish in blog format. Updated regularly.
(07/24/2007) Damselfish cultivate "gardens" of algae, according to a study published last October in the journal Biology Letters.
In Alaska, fishing industry drives marine conservation
(07/24/2007) Alaska's fisheries are some of the richest in the world, with fishermen harvesting hundreds of millions of dollars' worth of salmon, crab, herring, halibut, pollock, and groundfish every year. However, such bounty has not always been the case. Over-exploitation and poor fisheries management in the 1940s and 1950s took a heavy toll on the industry. Born of this difficult origin, today Alaska sets the bar in fisheries management. Unusually for natural resource management, industry is leading the way, relying on dialog with scientists to determine catch levels and where to designate "no-fishing zones", while pushing for certification standards for sustainable seafood products. These efforts are coordinated by the Marine conservation Alliance (MCA), an industry-backed nonprofit based in Juneau, Alaska. In July 2007, David Benton, executive director of the Marine conservation Alliance, spoke with mongabay.com about MCA's work in Alaska.
Fines on bycatch could help make conservation groups, industry accountable
(07/18/2007) Assessing fines on illegal bycatch could help clean up the fishing industry, reports a new study published in the August issue of Frontiers in Ecology and the Environment.
Foreign fishing fleets deplete African fish stocks
(07/18/2007) Heavily subsidized foreign fishing fleets are depleting coastal fish stocks of poor Africa countries, reports The Wall Street Journal.
"Living fossil" fish captured in Zanzibar
(07/16/2007) Fishermen in Zanzibar have caught a coelacanth, reports Reuters.
How long does it take reef fish to recover from overfishing?
(07/11/2007) Recovery of fish populations from overfishing can take decades, reports a new study based on 37 years of observations.
$11B Amazon rainforest dam gets initial approval
(07/10/2007) The Brazilian government has given preliminary go-ahead on a massive Amazon dam project that environmentalists and scientists say could be a potential ecological disaster.
How to save the world's oceans from overfishing
(07/08/2007) Global fishing stocks are in trouble. After expanding from 18 millions tons in 1950 to around 94 million tons in 2000, annual world fish catch has leveled off and may even be declining. Scientists estimate that the number of large predatory fish in the oceans has fallen by 90 percent since the 1950s, while about one-quarter of the world's fisheries are overexploited, depleted, or recovering from depletion. Despite these dire trends, the situation is changing. Today some of the world's largest environmental groups are focused on addressing the health of marine life and oceans, while sustainable fisheries management is at the top of the agenda for intergovenmental bodies. At the forefront of these efforts is Mike Sutton, director of the Monterey Bay Aquarium's conservation program: the Center for the Future of the Oceans. The aquarium, which has long been recognized as one of the world's most important marine research facilities, is pioneering new strategies for protecting the planet's oceans. Sutton says the approach has four parts: establishing new marine protected areas, pushing for ocean policy reform, promoting sustainable seafood, and protecting wildlife and marine ecosystems.
Man-eating piranha are actually cowards
(07/01/2007) Despite their reputations as aggressive blood-thirsty carnivores, piranha schooling behvaior is a defensive measure to protect against predators rather than an offensive hunting maneuver, reports new research presented at the Royal Society's summer science exhibition in London. Piranhas face many predators in their Amazon habitat, including caiman, freshwater dolphins, and giant fish like the pirarucu or arapaima.
Melting Antarctic icebergs help increase biodiversity, slow climate change
(06/21/2007) Icebergs breaking off Antarctica are unexpected hotspots of biological productivity and have a surprising role in climate change, reports a new study published in the journal Science.
Trade in sawfish banned
(06/11/2007) Trade restrictions for the endangered sawfish have been approved at the Convention on International Trade in Endangered Species (CITES) meeting the The Hague. All seven species of sawfish has been added to Appendix I of the convention, banning international commercial trade. One species, found in Australia, was added to Appendix II, restricting trade to live animals for conservation purposes.
Brazil debates $11B Amazon dam project
(06/10/2007) The eternal tension between Brazil's need for economic growth and the damage that can cause to the environment are nowhere more visible than here in this corner of the western Amazon. Now a proposal to build an $11 billion hydroelectric project here on the Madeira River, which may have the world's most diverse fish stocks, has set off a new controversy.
Sharks do not win CITES protection
(06/08/2007) Two endangered species of sharks failed to win protection at the Convention on International Trade in Endangered Species (CITES) meeting in The Hague.
Amazon tribe blocks major Brazilian highway
(06/08/2007) Indigenous Amazonians have blocked a major highway in the Brazilian state of Mato Grosso to protest a series of hydroelectric dams planned on the Xingu river, one of the Amazon's largest tributaries, according to Brazzil Mag and Survival International.
Shark fin does not cure cancer
(06/03/2007) Shark cartilage, long believed in traditional medicine to be an anti-cancer agent, confers no health benefits in lung cancer survival reports an extensive study presented at the 43rd annual meeting of the American Society of Clinical Oncology. The lead author said the findings cast major skepticism on shark cartilage products that are being sold for profit and have no data to support their efficacy as cancer-fighting agent.
Shark has virgin birth
(05/23/2007) A captive hammerhead shark gave birth to a pup without mating, reported researchers on Wednesday. It is the first time that parthenogenesis, as virginal birth as called, has been observed in a shark.
Photo of rare Indonesian coelacanth
(05/22/2007) Reuters has published photos taken of the rare coelacanth captured off the northern coast of the Indonesian island of Sulawesi on May 19, 2007. The coelacanth is fish species that dates back more than 400 million years in the fossil record.
Rare coelacanth captured in Indonesia
(05/20/2007) An Indonesian fisherman caught a coelacanth, a species so ancient it is called a 'living fossil', off the coast of Sulawesi, Indonesia, according to the Associated Press. The fisherman managed to keep the specimen alive for 17 hours in a pool before it expired.
Marine reserves help damaged coral reefs recover
(05/14/2007) Marine reserves can help coral reefs damaged by overfishing, disease, and bleaching caused by high temperatures, reports a new study published in Proceedings of the National Academy of Sciences.
Deal to end destructive bottom trawling reached
(05/07/2007) Governments have reached a landmark agreement to end high seas bottom trawling in nearly a quarter of the world's oceans. Environmentalists say bottom trawling, which destroys reefs and depletes slow-growing fish species, is one of the world's most destructive fishing practices.
Coral reef fish return home after drifting the seas
(05/03/2007) Most coral reef fish larvae return to their 'home' reefs after spending weeks to months maturing in the open ocean, reports a new study published in the journal Science. The findings improve the understanding of coral reef ecosystems and have implications for marine conservation efforts.
Deep sea fish growing slower due to global warming
(04/23/2007) Changes in ocean temperature have altered the growth rates of commercially harvested fish over the past century, according to a new study published in this week's early online edition of the Proceedings of the National Academy of Sciences (PNAS).
Herring fish restored to Bronx River in New York City
(04/05/2007) Building on last year's first-ever successful stocking of river herring in the Bronx River, an estimated 400 additional fish were released today in an ongoing effort to establish a breeding population of these native fish in one of the nation's most urbanized waterways. The release, which took place on the grounds of the Bronx Zoo, is part of a partnership among a diverse group of officials, biologists and citizen's groups to restore the Bronx River, the only remaining fresh water river within New York City's borders.
Global warming could hurt salmon fisheries in Pacific Northwest
(04/02/2007) Global warming could cause Chinook salmon populations in Washington state to decline 20-40 percent by 2050 according to a new study published in the online early edition of PNAS. The researchers urge policymakers to focus on restoration of lower elevation habitats in order to reduce the expected impact of climate change on salmon populations.
Overfishing of sharks causing shellfish decline
(03/29/2007) Overfishing of large sharks is reducing the abundance of shellfish reports a study published in the March 30 issue of the journal Science. A team of Canadian and American biologists has found that population declines in large predatory shark species -- including bull, great white, dusky, and hammerhead sharks -- due to overfishing has led to a boom in their ray, skate, and small shark prey species along the Atlantic Coast of the United States. Now these smaller species are depleting commercially important shellfish.
20 species of grouper fish are endangered
(03/21/2007) 20 of the world's 162 known species of grouper are threatened with extinction according to a survey by conservation groups. Grouper are popular food fish throughout the world, but due to their slow reproductive rates they are particularly vulnerable to overharvesting.
New Snapper Species Discovered in Brazil
(03/09/2007) A new species of snapper was discovered off the coast of Brazil. The popular game fish had long been mistaken for a more common species, according to scientists with conservation International (CI) and Environmental Defense. The description of the Lutjanus alexandrei snapper is published in the journal Zootaxa.
Fish extinctions alter critical nutrients in water, study shows
(03/03/2007) Ecosystems are such intricate webs of connections that few studies have been able to explore exactly what happens when a species dies out. Now, a Cornell study using computer simulations has teased out how the disappearance of a freshwater fish can affect the availability of certain nutrients that other species rely on.
New shark species discovered in Indonesia
(02/28/2007) Scientists discovered at least 20 previously unknown species in the first comprehensive survey of Indonesia's sharks and rays in nearly 150 years. Six of their discoveries have now been formally described, while the others will be documented in forthcoming scientific papers.
10 commandments could save world fisheries
(02/18/2007) Global fisheries are in decline. Now a team of scientists have proposed a set of ten commandments to protect the world's marine fish populations while ensuring ongoing production of sea food in a sustainable manner. They presented their work Sunday at the annual meeting of the American Association for the Advancement of Science in San Francisco.
Aquaculture key to seafood crisis
(02/16/2007) A scientific panel at the American Association for the Advancement of Science annual meeting in San Francisco Friday revealed that rising demand for seafood has exceeded the capacity of the marine ecosystem and that expansion of aquaculture will need to continue to help meet consumer appetite for seafood products.
Slurp gun used to capture hermaphrodite from hydrothermal vent
(02/15/2007) Researchers used an "Alvin Slurp Gun" to capture a hagfish from a deep sea hydrothermal vent. It is the first time that a member of the jawless fishes (agnathans) have been captured from a hydrothermal vent site. The results are published in the current edition of the journal Biology Bulletin.
Global warming may be beneficial to some fishermen
(02/01/2007) Climate change may be a boon to fisheries off northwestern Africa according to research published in Friday's issue of the journal Science. Lead by Dr. Helen McGregor, a paleoclimatologist at the University of Bremen's Research Center Ocean Margins in Germany, a team of scientists using data from sediment cores linked coastal upwelling off the coast of Morocco to 20th century climate warming. The results are significant because coastal upwelling zones, where nutrient-rich waters rise to the ocean's surface, yield roughly 20 percent of the world's fish harvest but represent less than one percent of the world ocean surface area.
Females fish whisper to initiate sex
(01/29/2007) Female Croaking gouramis whisper to initiate sex according to research published in the current edition of the journal Animal Behaviour that describes the use of sound by this freshwater aquarium fish species during aggressive displays and courtship.
Live fish trade causing massive depletion of coral reef species
(01/24/2007) According to a new study conducted by Cambridge University researchers off the northern coast of Borneo, the live reef fish trade is having a major impact on marine populations.
Rare fish from Madagascar named after renowned ichthyologist
(01/24/2007) An ichthyologist from the Wildlife conservation Society's New York Aquarium received the ultimate honor recently, when a freshwater fish discovered on the African island nation of Madagascar was named after him.
Marine protected areas boost fishing yields
(12/18/2006) A new study conducted on the reefs of Madagascar found that marine protected areas can benefit the fishing industry. The study, authored by Frances Humber, a scientist with conservation group Blue Ventures, found that implementing seasonal fishing closures for octopus boosted returns for fishermen when the closed areas were reopened to fishing after seven months. Octopus yields increased 13 times while the total weight of octopus caught jumped 25 times.
Moray eels and groupers hunt together
(12/05/2006) Moray eels and groupers hunt together according to research published in the December 5 issue of PLoS Biology. A team of researchers lead by Redouan Bshary, a biologist at the University of Neuchatel in Switzerland, found that moray eels and groupers practice cooperative hunting in Red Sea coral reefs -- behvaior not before described outside primates and birds. The hunting habits of groupers, which are diurnal (day-active) predators that hunt in open water, are markedly different from moral eels, which are evasive nocturnal hunters that sneak through reef crevices in an attempt to ambush and corner prey. As such prey have distinctly different evasive behvaior when confronted by groupers versus morays.
Fish may have the ability to recruit new muscle to reach giant size (for a minnow)
(11/27/2006) Two fish that share much in common genetically appear to have markedly different abilities to grow, a finding that could provide a new way to research such disparate areas as muscle wasting disease and fish farming, a new study shows. The study in the November issue of the American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, finds that the giant danio, unlike its cousin the zebrafish, appears to have the ability to recruit new muscle throughout its life. Humans have the same ability before birth, but mostly lose it after birth.
Commercial fishing can cause fish population imbalance
(10/18/2006) New research has found that commercial fishing can cause significant fluctuations in marine fish populations. Writing in Nature, scientists from several institutions and agencies argue that fishing can amplify the highs and lows of natural population variability.
Fish decline has ecological impact in tropical river
(08/14/2006) Dramatic population reductions of a single fish species in a South American river could degrade ecosystem function in an entire river system, according to an article in the Aug. 11 issue of the journal Science.
'Dead Zone' causing wave of death off Oregon coast
(08/10/2006) The most severe low-oxygen ocean conditions ever observed on the West Coast of the United States have turned parts of the seafloor off Oregon into a carpet of dead Dungeness crabs and rotting sea worms, a new survey shows. Virtually all of the fish appear to have fled the area.
Aquarium Fish May be the Key to New Therapies for Birth Defects
(08/09/2006) A humble aquarium fish may be the key to finding therapies capable of preventing the structural birth defects that account for one out of three infant deaths in the United States today.
Researchers seek controls to save coral reefs from live fish trade
(08/04/2006) Researchers are calling for tighter controls on the live reef fish trade, a growing threat to coral reefs, in letters to the international journal Science.
Coral reef parks established by locals more effective than government reserves
(07/31/2006) Coral reef marine protected areas established by local people for traditional use can be far more effective at protecting fish and wildlife than reserves set up by governments expressly for conservation purposes, according to a study by the New York-based Wildlife conservation Society (WCS) and other groups.
Greenlanders looking forward to global warming
(07/18/2006) Some people in Greenland are looking forward to climate change according to an article in today's issue of The Wall Steet Journal. In 'For Icy Greenland, Global Warming Has a Bright Side', journalist Lauren Etter finds examples of global warming-induced changes that could benefit Greenlanders. She notes that the 2.7 degrees Fahrenheit rise in temperatures over the past 30 years has extended the growing season by two weeks while melting glaciers have exposed land for grazing and warmer seas enable fishermen to catch warm-water cod.
Genetic contact between reef fish across the 5000 km Pacific divide
(07/05/2006) Reef fish share genetic connections across what Darwin termed an 'impassable barrier', 5000km of deep ocean separating the eastern and central Pacific, according to a report by Smithsonian scientists.
Exxon Valdez oil spill more damaging to wildlife finds study
(05/16/2006) New evidence suggests that oil from the Exxon Valdez may still causing damage to Alaska's Prince William Sound, 17 years after the ship ran aground. The study, by chemist Jeffrey Short and colleagues at the National Marine Fisheries Service in Juneau, Alaska, appears today on the Web site of the American Chemical Society's journal.
Global warming may cause permanent damage to coral reefs
(05/15/2006) Global warming has had a more devastating impact on coral reefs than previously believed says a new study published in the Proceedings of the National Academy of Sciences. The research, the first to show the long-term impact of rising sea temperatures on coral and fish communities, suggests that "large sections of coral reefs and much of the marine life they support may be wiped out for good," according to a news release from the University of Newcastle upon Tyne, an institution involved in the project.
History of the Chilean Sea Bass market
(05/04/2006) Today The Wall Street Journal ran an account of how the Chilean Sea Bass was first brought to market in 1977. Since its introduction, the species -- also known as the Patagonian toothfish -- has gone from being shunned to being welcomed at the worst's finest restaurants. But demand for the fish has taken its toll and the slow-growing species which takes 10-12 years to reach sexual maturity suffers from illegal over fishing in parts of its range. Some groups estimate that the illegal take may be up to five times the legal catch limit, leading some ecologists to predict the immanent collapse of the fishery.
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