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Tag: "fisheries" at biology news

Releasing fish for the future

NSW Department of Primary Industries (DPI) fisheries scientists are investigating ways to boost the survival rates of fish caught and then released by anglers. Some guidelines designed to improve fish survival were recently developed for released line-caught snapper, silver trevally, mulloway, sand w...

Tracking sperm whales and jumbo squid

...to the entire annual harvest of all the commercial fisheries on Earth. Humans also are big consumers of squid, including jumbo squid, now the target of a thriving commercial fishery in Baja California. "Even though this species is found only in the eastern Pacific, it reaches from Alaska to Chile and suppor...

Woman's Day and For Womens of Science

... human populations, and its effects on the world's fisheries and wildlife. Five other major findings in the declaration were: On average, three times more mercury is falling from the sky today than before the Industrial Revolution 200 years ago as a result of the increasing use of mercury and industrial...

Mercury contamination of fish warrants worldwide public warning

... human populations, and its effects on the world's fisheries and wildlife. Five other major findings in the declaration were: On average, three times more mercury is falling from the sky today than before the Industrial Revolution 200 years ago as a result of the increasing use of mercury and industrial...

Are we killing the world's oceans?

... dead zones, scientific and social dynamics during fisheries crises, how we all play a role in the collapse of ...a?" on Feb. 21 Pauly is one of the world's leading fisheries conservation scientists, and a vocal and influential critic of current fishing practices. All ses...

Long-lived deep-sea fishes imperiled by technology, overfishing

...o replenish the population, said Selina Heppell, a fisheries biologist from Oregon State University. "The harvest of deep-sea fishes is a lot like the harvest of old-growth timber," Heppell said, "except we don't ‘replant' the fish. We have to depend on the fish to replenish themselves. And the habitat that u...

Twenty of world's 162 grouper species threatened with extinction

...ects the widespread failure to successfully manage fisheries associated with coral reefs. Groupers are among the oldest fish on coral reefs, with some species reaching more than 50 years old. Several species only reach reproductive maturity later in life, making them particularly vulnerable to fishing befor...

Turtles are loyal in feeding as well as in breeding

...of the major threats to marine turtles globally is fisheries bycatch. Hundreds of thousands of marine turtles die each year as a result of fisheries interactions. Identifying and protecting key habitats is critical for the future of these endangered...

Study finds mercury prevalent in many western fish

...ert Hughes, also an author on the paper and an OSU fisheries and wildlife research associate professor. "If I were a mink or an otter," Hughes said, "I'd be concerned. Those guys are loading up on fish containing mercury and we don't really know at what levels they may be affected. In birds, the effects of ...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...ian and American ecologists, led by world-renowned fisheries biologist Ransom Myers at Dalhousie University, ha...n Science in 2003, which used data from commercial fisheries to show rapid declines in the great sharks of the northwest Atlantic since the mid-1980s. Now, by ex...

By 2048 all current fish, seafood species projected to collapse

...heological data. Then, the team compiled global fisheries catch data from 64 large marine ecosystems to test... loss on fisheries-related services. They used the fisheries database compiled by the United Nations Food and Agriculture Organization and the Sea Around Us Proj...

Salmon farms kill wild fish, study shows

...iced ?in the same place," said Dr. Ransom Myers, a fisheries biologist at Dalhousie University. "It also raises a more distant specter," said Dobson. "When are we going to see the first human disease caused by aquaculture?" The research was funded primarily by the National Research Council of Canada and t...

Triple threat: World fin trade may harvest up to 73 million sharks per year

...says lead author Shelley Clarke, Ph.D, an American fisheries scientist based in Hong Kong and Japan. A team of researchers calculated the number of sharks represented in the fin trade using a unique statistical model and data from Hong Kong traders. When the figures were converted to shark weight, the total ...

Sandia research to focus on early detection of harmful algal blooms

...tory. HABs: devastating for coastal ecology and fisheries Harmful algal blooms are widely acknowledged to be a severe coastal resource management issue, adversely impacting virtually every coastal region. Current methods for detecting the poisonous toxins characteristic of the blooms are cumbersome, requ...

Nice guys do finish first in lizards' evolutionary race

...ry," said Andrew McAdam, an assistant professor of fisheries and wildlife and zoology at Michigan State University and one of the paper's authors. "The question then is why do some organisms cooperate when it seems like being selfish should be the best strategy?" Turns out, it's all in the genes. For two de...

Researchers appeal for new regulations to save coral reefs from live fish trade

...ntage of porous world trade policy and ineffective fisheries management to sell their plunder," says Dr Helen S... Zoology, University of Cambridge have tracked the fisheries trade radiating out from Hong Kong, the hub for international trade in live reef fish. They have al...

UN review shows need to halt destructive fishing practice

... unregulated to the point of serious harm. "Many fisheries are not managed until they are overexploited and c... Organizations with authority to govern deep water fisheries ?the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) and the General F...

Creating a window on 'oceans in motion'

...new technologies open the path not just to smarter fisheries management, to better sea life conservation measur...ations for authorities that need to determine when fisheries should be open or closed to conserve endangered stocks. Other scientists from around the world atte...

Record bonefish

...ry Ault, associate professor of marine biology and fisheries at the UM Rosenstiel School. "That means the fish was at liberty 321 days, gaining about an inch in length and moving in a linear distance of 186 miles." This distance record is more than double the previous one of 75 miles (Key Largo to Big Pine K...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...Maine as an ecosystem ?one of the primary goals of fisheries laws in the U.S. and Canada and of recent ocean commissions. "Though the Gulf of Maine is one of the most intensively studied bodies of water in the world, there has never been an undertaking to compile all species living there. This register is th...

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