Results 41 to 50 of about 32,183 (242)
Applied Sciences, 2022 Acoustic-trawl surveys use trawl sampling to identify aquatic species. The Deep Vision stereo camera system collects images of fish passing through trawl extensions.
Yong-Deuk Lee +5 more
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Examining Retention-at-Length of Pelagic Fishes Caught in the Fall Midwater Trawl Survey
San Francisco Estuary and Watershed Science, 2020 The Fall Midwater Trawl Survey has provided data on aquatic organisms in the San Francisco Estuary for over five decades. In 2014–2015, a study was conducted to investigate and quantify the efficiency of this trawl for catching the endangered fish ...
L. Mitchell, U. Fish, Randall D. Baxter
semanticscholar +1 more source
Development of a new midwater sampling trawl
Fisheries science, 2002 To collect he pelagic larval and juvenile fish, several kinds of midwater trawling gear have been developed.1-4) A common disadvantage of these trawls is that depth of the net changes greatly by the towing speed. In order to overcome the disadvantages of these sampling trawls, Hu et al.
FUXIANG HU +3 more
openaire +2 more sources
Midwater Trawling Studies in the North Pacific1 [PDF]
Limnology and Oceanography, 1959 A modified version of the Isaacs‐Kidd midwater trawl was used for 149 exploratory hauls in the Northeastern Pacific at depths ranging from 20 to 250 meters. Catches are discussed in terms of such factors as diurnal migration, seasonal variation, patchiness, and geographic variation.There was wide difference between day and night hauls.
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DEVELOPMENT AND TESTING OF ALGORITHM FOR CALCULATION OF OPERATING PARAMETERS OF TRAWLING SYSTEMS
Известия ТИНРО, 2019 Numerical model of trawling system is developed on the base of equilibrium principle, using F.I. Baranov’s scheme of its power and geometric parameters interdependence.
E. A. Zakharov +2 more
doaj +1 more source
PLoS ONE, 2021 Rockfish are an important component of West Coast fisheries and California Current food webs, and recruitment (cohort strength) for rockfish populations has long been characterized as highly variable for most studied populations.
John C Field +10 more
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Scientia Marina, 2004 The daily ration of Pleuragramma antarcticum in the Eastern Weddell Sea was investigated from midwater and bottom trawl samples collected in the Antarctic in the summer of 1998.
Ignacio Olaso +2 more
doaj +1 more source
An overview of environmental labelling and claims on fish and seafood products in New Zealand supermarkets. [PDF]
J R Soc N ZABSTRACT The environmental impact of consuming seafood is receiving increasing attention. However, in New Zealand, environmental claims on food products are not regulated in the Food Standards Code. The objective of this study is to describe labelling practices, including environmental claims, on fish and other seafood products available in New Zealand.
Le Folcalvez XN, Skeaff S, Bradbury KE.
europepmc +2 more sources
California Fish and Wildlife Journal, 2020 Historically, the native mysid Neomysis mercedis was a key source of food for fish in the San Francisco Estuary (SFE). Following the introductions of the over-bite clam and many invasive zooplankton species in the mid-1980s, populations of native ...
Michelle Avila, Rosemary Hartman
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Stocks and fishery of cod (Gadus macrocephalus, Gadidae) in the northwestern Bering Sea in 1965–2022
Известия ТИНРО, 2023 For pacific cod in the northwestern Bering Sea, biomass of the summer-fall feeding aggregations in the specified area of their highest density (polygon) is considered as a stock unit.
A. B. Savin
doaj +1 more source