Results 91 to 100 of about 34,528 (205)
The systematic sampling for inferring the survey indices of Korean groundfish stocks
Fisheries and Aquatic Sciences, 2018 The Korean bottom trawl survey has been deployed on a regular basis for about the last decade as part of groundfish stock assessments. The regularity indicates that they sample groundfish once per grid cell whose sides are half of one latitude and that ...
Saang-Yoon Hyun, Young IL Seo
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Известия ТИНРОThe key stage of juvenile pink salmon monitoring is the survey of their fall feeding in the sea that detects the year-class strength. The results of this survey are used for forecasting of the pink salmon returns to the Karaginsky fishing subzone in ...
A. A. Somov +4 more
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An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients [PDF]
, 2008 Environmental variability affects the distributions of most marine fish species. In this analysis, assemblages of rockfish (Sebastes spp.) species were defined on the basis of similarities in their distributions along environmental gradients.
Rooper, Christopher N.
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Survey of fishes and water properties of south San Francisco Bay, California, 1973-82 [PDF]
, 1989 The objective of this study was to describe the physical and ichthyological changes occurring seasonally and annually in the south San Francisco Bay, based on the results of 2,561 otter trawl and water samples obtained between February 1973 and June ...
Pearson, Donald E.
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International Program of Standardised Trawl Surveys [PDF]
, 2001 The IPROSTS project had two main objective : - Completionn of research vessel surveys in the autumn of 1999 and 2000 in ICES areas VI, VII and VIII in order to provide abundance indices at age for the major commercial species exploited in these areas, - Standardisation of the methodology used in bottom trawl surveys.
openaire
Frontiers in Marine ScienceAntarctic krill (Euphausia superba Dana) is a key species of the Southern Ocean ecosystem, immensely abundant and targeted by the krill fishery. For their sustainable management, krill distribution and biomass estimates are required, typically achieved ...
Leonie Suter +25 more
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Marine Debris Survey Manual [PDF]
, 1992 Over the last several years, concern has increased about the amount of man-made materials lost or discarded at sea and the potential impacts to the environment. The scope of the problem depends on the amounts and types of debris.
Dixon, Trevor R. +2 more
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Widow rockfish: Proceedings of a workshop, Tiburon, California, December 11-12, 1980 [PDF]
, 1987 This workshop was organized because of the increase between 1978 and 1980 in coastwide landings of widow rockfish, from less than 1,000 mt to more than 20,000 mt, and because of scientists' concern with the lack of knowledge both of the fishery and ...
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Capture probability of a survey trawl for red king crab (Paralithodes camtschaticus) [PDF]
, 2004 The relative abundance of Bristol Bay red king crab (Paralithodes camtschaticus) is estimated each year for stock assessment by using catch-per-swept-area data collected on the Alaska Fisheries Science Center’s annual eastern Bering Sea bottom trawl ...
Otto, Robert S. +2 more
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Prosomal-width-to-weight relationships in American horseshoe crabs (Limulus polyphemus): examining conversion factors used to estimate landings [PDF]
, 2009 Horseshoe crabs (Limulus polyphemus) are valued by many stakeholders, including the commercial fishing industry, biomedical companies, and environmental interest groups.
Botton, Mark L. +4 more
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