Results 71 to 80 of about 26,803 (164)
Sample Design-based Methodology for Estimating Delta Smelt Abundance
San Francisco Estuary and Watershed Science, 2008 A sample design-based procedure for estimating pre-adult and adult delta smelt abundance is described. Using data from midwater trawl surveys taken during the months of September, October, November, and December for the years 1990 through 2006 and ...
Ken B. Newman
doaj
, 2016 (above) Cod end of an Isaacs-Kidd midwater trawl bitten by captured Isistius brasiliensis (photo J C Staiger, University of Miami, 10 May 1972); (below) plug of fish tissue found in the stomach of an I.
Peter B. Best (370105) +1 more
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Flytetrål tilbake i torskefisket etter 30 år : Midwater trawl returns to the cod fishery
, 2008 After thirty years of prohibition, the midwater trawl may once again become an alternative to the bottom trawl in the cod, haddock and saithe fisheries. A midwater trawl has no impact on the seabed and requires less energy to operate than a bottom trawl.
Mæstad, Kjartan
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FishesMarine mammal Bycatch Reduction Devices (BRDs) can result in the escape of target fish species. In the present study, a modified single-layer codend configuration developed from previous studies was evaluated using BRDs with guide net angles of 30° and ...
Jung-Mo Jung +5 more
doaj +1 more source
POD! Fish- DFG Fall Midwater trawl sampling Sept.-Dec.1967-2006
, 2011 Midwater trawl sampling September-December 1967-2006 Purpose of DFG's Fall Midwater Trawl survey is to evaluate potential water project effects on survival of young striped bass.
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Frontiers in Marine ScienceAntarctic krill (Euphausia superba) is a harvested species that has an important role in the Southern Ocean food web. Knowledge on the demography of Antarctic krill is necessary for a better understanding of the distribution of life stages and their ...
Fokje L. Schaafsma +10 more
doaj +1 more source
Lanternfish (Myctophidae) from eastern Brazil, southwest Atlantic Ocean
Latin American Journal of Aquatic Research, 2014 Twenty-nine species from 11 genera of Myctophidae were taken in daytime midwater and bottom trawl hauls off eastern Brazil (11º-22ºS). Trawls were performed aboard the French R/V Thalassa to depths from 19 to 2271 m, including samples from shelf, slope ...
Adriana da Costa Braga +4 more
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Известия ТИНРО, 2015 Zooplankton and pelagic fish samples collected on the eastern Bering Sea shelf in late summer 2003-2010 were used to evaluate spatial and temporal changes in the plankton and nekton community structure.
Lisa B. Eisner +2 more
doaj +1 more source
midwater'From the early 1970s the midwater trawl became an optional feature of the stern trawler.'PRINTED ITEM DNE SupG. M. Story JUN.
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MULTISPECIES REVENUE FUNCTION ESTIMATION FOR NORTH PACIFIC GROUNDFISH FISHERIES [PDF]
Multiproduct, multispecies revenue functions are estimated for the midwater and bottom-trawl pollock fisheries off Alaska. There are strong year and seasonal effects on coefficient estimates, and the technology is joint in outputs for each major ...
Larson, Douglas M. +4 more
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