http://www.sciencedaily.com/news/plants_animals/fish/ All about fish. Current research in marine biology including fish habitats, aquaculture, speciation, deep sea fish and more. en-us Wed, 11 Nov 2009 22:05:01 EST Wed, 11 Nov 2009 22:05:01 EST 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/plants_animals/fish/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2009/11/091110211333.htm Researchers have identified a key component that increases the toxicity of golden algae which kills millions of fish in the southern U.S. every year. Wed, 11 Nov 2009 20:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110211333.htm http://www.sciencedaily.com/releases/2009/11/091110105351.htm Researchers in Spain have confirmed a higher presence of the parasite Anisakis in anchovies of the Atlantic South East coast and the Mediterranean North West coast, and they insist on freezing or cooking fish before consuming it. Wed, 11 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110105351.htm http://www.sciencedaily.com/releases/2009/11/091102112104.htm Why do so many animal species -- including fish, birds and insects -- display such rich diversity in coloration and other traits? New research offers an answer. Mon, 09 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102112104.htm http://www.sciencedaily.com/releases/2009/11/091109142129.htm Studies conducted in California and elsewhere provide support for the use of marine reserves as a tool for managing fisheries and protecting marine habitats. Mon, 09 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091109142129.htm http://www.sciencedaily.com/releases/2009/11/091105143821.htm One of the first set of studies to examine what tourists and recreation enthusiasts actually think about coral reef ecosystems suggests they are a rare exception to controversies over human use versus environmental conservation -- their stunning beauty is so extraordinary that almost everyone wants them protected in perpetuity. Thu, 05 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091105143821.htm http://www.sciencedaily.com/releases/2009/11/091102172247.htm About half of 36 fish stocks in the Northwest Atlantic Ocean, many of them commercially valuable species, have been shifting northward over the last four decades, with some stocks nearly disappearing from US waters as they move farther offshore, according to a new study. Wed, 04 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102172247.htm http://www.sciencedaily.com/releases/2009/11/091102171559.htm Deep-sea ecosystems occupying 60 percent of the Earth's surface could be vulnerable to the effects of global warming, warn scientists. Tue, 03 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102171559.htm http://www.sciencedaily.com/releases/2009/11/091102121456.htm A recent assessment finds some positive trends among indicators of biodiversity loss in China -- notably, growth in forest coverage and improvements in marine ecosystems. However, other indicators, such as the rate of discovery of invasive species, are worsening. Many animals are under growing threat. Mon, 02 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102121456.htm http://www.sciencedaily.com/releases/2009/11/091102085825.htm Nature inspires technology as an engineer and an ecologist have teamed to develop robots that use advanced materials to swim like fish to probe underwater environments. Robotic fish -- perhaps schools of them operating autonomously for months -- could give researchers far more precise data on aquatic conditions, deepening our knowledge of critical water supplies and habitats. Mon, 02 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102085825.htm http://www.sciencedaily.com/releases/2009/10/091028140043.htm Researchers are using a remotely operated vehicle and satellite-linked data loggers to learn more about turtle behavior in commercial fishing areas and to develop new ways to avoid catching turtles in fishing gear. This marks the first time an ROV has been used to follow turtles in the wild to learn about their behavior and how they interact with their habitat Fri, 30 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091028140043.htm http://www.sciencedaily.com/releases/2009/10/091028114025.htm Scientists are reporting results of one of the first studies on the release of silver nanoparticles from laundering those anti-odor, anti-bacterial socks now on the market. Their findings may suggest ways that manufacturers and consumers can minimize the release of these particles to the environment, where they could harm fish and other wildlife. Thu, 29 Oct 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091028114025.htm http://www.sciencedaily.com/releases/2009/10/091027101411.htm Researchers have developed an 'ecological risk assessment' a three-step method that considers targeted and incidentally caught species, as well as threatened, endangered and protected species. Ongoing research is further developing the method for habitats and ecological communities. Thu, 29 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027101411.htm http://www.sciencedaily.com/releases/2009/10/091026220014.htm A new article unveils for the first time a method to accurately distinguish between all eight tuna species from any kind of processed tissue using genetic sequencing. Tue, 27 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026220014.htm http://www.sciencedaily.com/releases/2009/09/090902133639.htm Two related research expeditions by NOAA scientists to track the habitat preferences and movements of fish at Gray's Reef National Marine Sanctuary may help managers protect overfished species such as red snapper and grouper. Tue, 27 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090902133639.htm http://www.sciencedaily.com/releases/2009/09/090922123935.htm It is well documented that brown (grizzly) bears prey on major runs of salmon, charr and trout. In 2007, researchers were surprised to spot a brown bear caching whitefish near a stream in the Mackenzie Delta region of the Northwest Territories. This sighting has researchers advising increased care in petroleum extraction and infrastructure development within the area. Tue, 27 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922123935.htm http://www.sciencedaily.com/releases/2009/08/090813142508.htm Flower Garden Banks National Marine Sanctuary is among the healthiest coral reef ecosystems in the tropical Caribbean and Gulf of Mexico, according to NOAA researchers. Their report offers insights into the coral and fish communities within the sanctuary based on data collected in 2006 and 2007. Mon, 26 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090813142508.htm http://www.sciencedaily.com/releases/2009/10/091020111420.htm Researchers are building the environmental equivalent of the ASX200 as a means of monitoring the health of Australian marine ecosystems. Mon, 26 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091020111420.htm http://www.sciencedaily.com/releases/2009/09/090917161740.htm Temperature differences and slow-moving water at the confluence of the Clearwater and Snake rivers in Idaho might delay the migration of threatened fall Chinook salmon salmon and allow them to grow larger before reaching the Pacific Ocean. To find out if that's the case, a team of researchers is implanting young fish with acoustic and radio tags to track their movement and using hydrological sensors to measure water temperature and speed. Sat, 24 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090917161740.htm http://www.sciencedaily.com/releases/2009/08/090830104316.htm Group B Streptococcus is a versatile pathogen that affects a variety of animals. Now studies are revealing new information about this pathogen. Thu, 22 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090830104316.htm http://www.sciencedaily.com/releases/2009/10/091026123944.htm For years, international policy on the environment and biodiversity has not just been the concern of governments. Countless other organizations and their mutual strategic alliances also play a significant role. Without them there would be no sustainable fish in the supermarket and no FSC wood at the DIY center. However, a Dutch researcher has discovered that only a small proportion of these 'partnerships' make a substantial contribution to biodiversity. Thu, 22 Oct 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026123944.htm http://www.sciencedaily.com/releases/2009/10/091021115013.htm Scientists are reporting the first scientific explanation for one of the most widely known rules of thumb for pairing wine with food: "Red wine with red meat, white wine with fish." The scientists are reporting that the unpleasant, fishy aftertaste noticeable when consuming red wine with fish results from naturally occurring iron in red wine. Wed, 21 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091021115013.htm http://www.sciencedaily.com/releases/2009/10/091019134716.htm Supervolcanoes and cosmic impacts get all the terrible glory for causing mass extinctions, but a new theory suggests lowly algae may be the killer behind the world's great species annihilations. Tue, 20 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091019134716.htm http://www.sciencedaily.com/releases/2009/10/091001164052.htm Mercury's persistent and toxic presence in the environment has flummoxed scientists for years in the quest to find ways to mitigate the dangers posed by the buildup of its most toxic form, methylmercury. A new discovery, however, has shed new light on one of nature's best mercury fighters: bacteria. Tue, 20 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091001164052.htm http://www.sciencedaily.com/releases/2009/09/090930165036.htm NOAA and Norwegian researchers recently completed a comparative analysis of marine ecosystems in the North Atlantic and North Pacific to see what factors support fisheries production, leading to new insights that could improve fishery management plans and the ecosystems. Mon, 19 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090930165036.htm http://www.sciencedaily.com/releases/2009/10/091016121827.htm Researchers have identified the first fish known to have switched from ultraviolet vision to violet vision, or the ability to see blue light. The discovery is also the first example of an animal deleting a molecule to change its visual spectrum. The findings on scabbardfish link molecular evolution to functional changes and the possible environmental factors driving them. Sat, 17 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091016121827.htm http://www.sciencedaily.com/releases/2009/09/090929203024.htm The consumption of fish has no major role in the prevention of heart failure, according to results from a large prospective population study. The study, which was started in 1990 and involved all men and women over the age of 55 living in a suburb of Rotterdam, found no difference in the risk of developing heart failure between those who did eat fish and those who didn't. Sun, 11 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090929203024.htm http://www.sciencedaily.com/releases/2009/10/091008073314.htm Major shifts in fisheries distribution due to climate change will affect food security in tropical regions most adversely, according to a new study. Sun, 11 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091008073314.htm http://www.sciencedaily.com/releases/2009/10/091006201350.htm Scientists from the UK and Japan have recorded the first observations of how albatrosses feed alongside marine mammals at sea. Wed, 07 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006201350.htm http://www.sciencedaily.com/releases/2009/10/091002104022.htm A powerful fish-killing toxin could have cancer-killing properties as well. The toxin, called euglenophycin, has a molecular structure similar to that of solenopsin, an alkaloid from fire ant venom known to inhibit tumor development. Sun, 04 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091002104022.htm http://www.sciencedaily.com/releases/2009/10/091001164227.htm Biologists have genetically mapped the sex chromosomes of several species of cichlid fish from Lake Malawi, East Africa, and identified a mechanism by which new sex chromosomes may evolve. Fri, 02 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091001164227.htm http://www.sciencedaily.com/releases/2009/09/090930102522.htm A bluefin tuna, tagged by researchers in August 2008, was caught a year later by a professional bait boat off the coast of northern Spain. The animal had internally implanted electronic tag which enabled its migratory movements and the depth of these, amongst other data, to be obtained. First estimations of the geographical location of the recovered tag revealed that this fish had undertaken migrations between the Azores and Portugal during the winter, later to return to the Gulf of Bizkaia in spring and also that it had dropped, during the winter, to depths of more than 1000 meters. Thu, 01 Oct 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090930102522.htm http://www.sciencedaily.com/releases/2009/09/090930102530.htm Wild salmon and farmed salmon can now be distinguished from each other by a technique that examines the chemistry of their scales. Thu, 01 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090930102530.htm http://www.sciencedaily.com/releases/2009/09/090929100652.htm Scientist have revealed the first stage of the European eels mysterious migration to the Sargasso Sea by attaching pop up satellite tags to eels. Wed, 30 Sep 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090929100652.htm http://www.sciencedaily.com/releases/2009/10/091001091807.htm New research is aiming at developing new dietary sources of long-chain omega-3 oils in grains and lamb. They are now developing oilseed crop plants that synthesize EPA and DHA in their oils. Wed, 30 Sep 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091001091807.htm http://www.sciencedaily.com/releases/2009/09/090928191810.htm There may be plenty of fish in the sea but the medaka knows what it likes. A new study shows how a single gene mutation that turns Japanese Killifish a drab gray color renders them significantly less attractive to more colorful members of the opposite sex. Tue, 29 Sep 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090928191810.htm http://www.sciencedaily.com/releases/2009/09/090928201849.htm Just as people plug in to computers, smart phones and electric outlets to communicate, electric fish communicate by quickly plugging special channels into their cells to generate electrical impulses, researchers have discovered. Tue, 29 Sep 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090928201849.htm http://www.sciencedaily.com/releases/2009/09/090922095816.htm Scientists recently named a new species of chimaera, an ancient and bizarre group of fishes distantly related to sharks, from the coast of Southern California and Baja California, Mexico. The new species is the Eastern Pacific black ghostshark. Wed, 23 Sep 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922095816.htm http://www.sciencedaily.com/releases/2009/09/090922160100.htm Everyone knows that frogs are in trouble. But a recent analysis of frog surveys done at eight Central American sites shows the situation is worse than thought. Under pressure from an invasive fungus, the frogs in this biodiversity hot spot are undergoing "a vast homogenization." "We're witnessing the McDonaldization of the frog communities," comments the lead author of the new study. Wed, 23 Sep 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922160100.htm http://www.sciencedaily.com/releases/2009/09/090901091733.htm Oceanographers find that mercury levels in pelagic fish found around Hawaii are influenced by depth. Mon, 21 Sep 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090901091733.htm http://www.sciencedaily.com/releases/2009/09/090917111511.htm Scientists are calling for urgent research to understand the impact of renewable energy developments on marine life. The study highlights potential environmental benefits and threats resulting from marine renewable energy, such as off-shore wind farms and wave and tidal energy conversion devices. Sun, 20 Sep 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090917111511.htm http://www.sciencedaily.com/releases/2009/09/090916103439.htm While developing a more efficient, safer way to extract venom, researchers noticed the venom delivered by an isolated population of Florida cottonmouth snakes may be changing in response to their diet. Fri, 18 Sep 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090916103439.htm http://www.sciencedaily.com/releases/2009/09/090916153140.htm Using light, scientists traced a fish's swimming response to the neurons that control it. Their technique could become a powerful way to learn how biological systems work. Wed, 16 Sep 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090916153140.htm http://www.sciencedaily.com/releases/2009/09/090914172648.htm Intersex in smallmouth and largemouth basses is widespread in numerous river basins throughout the United States is the major finding of the most comprehensive and large-scale evaluation of the condition, according to new research. Tue, 15 Sep 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090914172648.htm http://www.sciencedaily.com/releases/2009/08/090831213212.htm Fish in US waters from Cape Hatteras to the Canadian border have moved away from their traditional, long-time habitats over the past four decades because of fundamental changes in the regional ecosystem, according to a new report. The report also points out the need to manage the waters off the northeastern coast of the United States as a whole rather than as a series of separate and unrelated components. Mon, 14 Sep 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090831213212.htm http://www.sciencedaily.com/releases/2009/09/090908103904.htm What happens when traits no longer give creatures a competitive edge? In a recent review, researchers teamed up to take a closer look at the evolutionary fate of useless traits. Fri, 11 Sep 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090908103904.htm http://www.sciencedaily.com/releases/2009/09/090910091635.htm For many of the types of fish we buy in stores or order in restaurants, the chance that an individual dies from fishing is several times higher than dying of natural causes. This may seem obvious to most (they had to get to our table somehow), but what may not be apparent is that the relentless pursuit of consumer-friendly fish product is having a massive impact on fish populations around the world. By repeatedly choosing only the biggest fish, or only those found in certain habitats, the fisheries industry may be permanently altering the genetic composition of fish populations. Thu, 10 Sep 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090910091635.htm http://www.sciencedaily.com/releases/2009/09/090909095058.htm Scientists have found the mechanism that controls the number of salmonids found each year in Cantabrian rivers. Their method has been to monitor population numbers in relation to river flow in March, when the juvenile fish emerge. They have concluded that environmental conditions change each year and that modified river flow, positively or negatively affects survival rates. This information throws light on a long debate within ecological theory about the mechanisms that regulate the size of animal populations. Wed, 09 Sep 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090909095058.htm http://www.sciencedaily.com/releases/2009/09/090903163554.htm Scientists have suspected that spare parts in the genome -- extra copies of functional genes that arise when genes or whole genomes get duplicated -- might sometimes provide the raw materials for the evolution of new traits. Now, researchers report that they have discovered a prime example of this in fish. Tue, 08 Sep 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090903163554.htm