Story tips from the US Department of Energy's Oak Ridge National Laboratory, August 2007
...eon population. These factors include siltation of spawning areas, degradation of water quality in summer due to upstream agriculture, urban development and military land management, atmospheric mercury and introduction of saline water introduction through rice canals. While 19 distinct populations of shortno...Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...nal Marine Biology, sheds light on habitat used by spawning bluefin tuna and may one day lead to better protection in U.S. waters. The spawning stock has dropped 90% in the past 30 years. Using data from 28 tagged Atlantic bluefins (recording...'Sundried tide' -- silent, natural disaster
...October, when corals are building up resources for spawning and preparing for summer stressors such as thermal bleaching." Since studying the cause and impacts of these major events, Dr Anthony hopes that their predictable nature will lead to improved warning systems and better models for predicting stress......rst larval tagging study of a free-water (pelagic) spawning fish species the first larval tagging study of a bottom (benthic) spawner and a pelagic spawner in the same location and comparison of their dispersal patterns. The tag is enabling the researchers to understand the extent to which yo...20 of world's 162 grouper species threatened with extinction
...d to better protect outer reef areas and to manage spawning aggregations of many of the threatened grouper spe...ef areas are often not incorporated into MPAs, and spawning aggregations necessary for continued reproduction of many grouper species are rapidly eliminated by ......tlefish, Sepia apama, on their southern Australian spawning grounds over the course of a week. They observed t...efish were camouflaged during the day, during peak spawning periods. However, at dusk, the animals settled to the bottom and 86% of them quickly adapted their b...Tracking sperm whales and jumbo squid
...ed an area in the central Gulf of California where spawning and mating of these animals probably take place." Electronic tags The MEPS study was conducted in fall 2004 near Santa Rosalia, a coastal Baja California town that is the center of Mexicos jumbo squid fishery. During six days at sea, the res...Mistaken identity? When a white marlin may not always be a white marlin
...important management information on when and where spawning occurs and the location of nursery grounds for the marlin, sailfish and spearfish species. Based on a stock assessment performed in 2002 by ICCAT, white marlin populations are already severely overfished and only at about 12 percent of the level n...'Ten Commandments' could improve fisheries management
...ams, terrestrial water quality, forest management, spawning habitat, marine food sources and predators, changing ocean conditions and global climate change. "This may sound overwhelming, but given the right mindset, many ecosystem-based tools are ready to go," Hixon said. "That's why my colleagues and I deve...Newly discovered West Coast arrhythmias cause
...e critical for many salmon species whose return to spawning grounds has been only 2-4% in recent years, and Peterson predicts that 2007 will be another low year for salmon returns. Sea-bird Die-offs In the spring of 2005, the volunteers who work as citizen scientists patrolling beaches found tens of thous......s of oogenesis, a period that prepares the egg for spawning and fertilization. They show that teleost vitellogenins have undergone a post-R3 lineage-specific gene duplication to form paralogous clusters that correlate to the pelagic and benthic character of the eggs. The alteration in the function (neo-functi...... express successful homing behavior to their natal spawning sites. This might play a major role in processes of population separation and, eventually, of speciation." According to Gerlach, the results of this research could have important implications not only for the Great Barrier Reef, but for marine enviro...Climate change has surprising effect on endangered naked carp
...torically abundant, overfishing and destruction of spawning habitat through dam-building caused the species to become endangered during the 1990s. Diversion of water for agriculture from the lake has been compounded by climate change, leading to a decline in water level in the lake of 1012 cm per year during ...Ancient climate change may portend toasty future
...c and terrestrial plant and animal life, including spawning the rise of our modern primate ancestors. But understanding just how much carbon was responsible for the temperature increase and where it came from remains elusive. The new calculations used data from carbon found in fossils of ancient land plant...UCSF set to transform itself into engine of translational research
...to create medically useful drugs, such as insulin, spawning the biotechnology industry. A UCSF scientist discovered the protein surfactant, essential for keeping the lung inflated, in the 1960s, and a UCSF team developed a synthetic form of the protein to treat premature babies whose immature lungs don't prod...Prozac exposure found to disrupt mussel reproduction
...e system--and has been used to artificially induce spawning in bivalves. At laboratory test concentrations, they found, fluoxetine caused female mussels carrying larvae to release them prematurely, and often, before they were viable, disrupting their reproductive cycle. Approximately 70 percent of the almos...Sturgeon's general warning: stable for now, but beware
...the females aren't laying eggs or that they aren't spawning at all - both of which would have serious ramifications." Another possibility, he said, is that the researchers' sampling may not have been in the right place and most of the young were somewhere else. "This is an issue that needs to be resolved,...Fish virus in Northeast spreading to other fish species
...was first reported in 1988 in the United States in spawning salmon in the Pacific Northwest. It was reported in North American freshwater fish in 2005 in muskellunge in Lake St. Claire, Mich., and in freshwater drum from the Bay of Quinte, Lake Ontario, Canada....Speeding discovery of the 'human cancer genome'
...genome in search of those genes most important for spawning cancer. Both groups say that a critical element in the enterprise to efficiently characterize the "human cancer genome" --a comprehensive collection of the genetic alterations responsible for major cancers--is the strategic comparison of human tumors...Cornell researchers find serious fish virus in Northeast for first time
...was first reported in 1988 in the United States in spawning salmon in the Pacific Northwest. It was reported in North American freshwater fish in 2005 in muskellunge in Lake St. Claire, Mich., and in freshwater drum from the Bay of Quinte, Lake Ontario, Canada. The virus appears to have now traveled east. "F...