نتایج جستجو برای: bottom trawling

تعداد نتایج: 60372  

1996
A. D. Rijnsdorp P. I. van Leeuwen

Annual length increments of female North Sea plaice were back-calculated from distances between rings in otoliths. Growth of the smaller size classes (<25 cm) increased from the mid-1950s and decreased in the 1980s. Length increments of intermediate size classes varied more or less randomly, and those of the larger size classes (>35 cm) increased from 1970. Growth changes of the smaller size cl...

1999
Evelyn D. Brown Jia Wang Shari L. Vaughan Brenda L. Norcross

An extensive area in Bristol Bay, Alaska, was proposed as a no-trawling zone to protect red king crab habitat from potential impacts. The Bristol Bay red king crab stock has remained at low abundance levels since a stock collapse in 1980. A literature review indicated that the proposed area encompassed all available habitat essential for red king crab juveniles of this stock. Published studies ...

2005
Sara Maxwell

Medicines from the Deep 2 ABOUT NRDC NRDC (Natural Resources Defense Council) is a national, nonprofit organization of scientists, lawyers, and environmental specialists dedicated to protecting public health and the environment. Founded in 1970, NRDC has more than 1 million members and online activists nationwide, served from offices in New York, Washington, Los Angeles, and San Francisco. For ...

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