Results 81 to 90 of about 430 (170)

Body Length, Tow Conditions, and Guide-Net Angle as Joint Predictive Contributors to Catch Loss in a Marine Mammal Bycatch Reduction Device: An Interpretable Machine Learning Analysis

Fishes
Guide-net marine mammal bycatch reduction devices (BRDs) are intended to reduce protected species interactions in trawl fisheries, but their use may also cause catch loss of commercial fish and cephalopods.
Kyu-Suk Choi, Jung-Mo Jung, Hyun-Young Kim   +2 more
doaj   +1 more source

A Covered Cod-End and Tow-Path Evaluation of Midwater Trawl Gear Efficiency for Catching Delta Smelt (Hypomesus transpacificus)

San Francisco Estuary and Watershed Science, 2017
https://doi.org/10.15447/sfews.2017v15iss4art3For nearly 50 years, the California Department of Fish and Wildlife has used a midwater trawl to intensively monitor fish populations in the San Francisco Estuary during the fall, sampling over 100 locations
Lara Mitchell, Ken Newman, Randall Baxter   +2 more
doaj  

Economics of gill netting and two boat midwater trawling

, 1988
The paper deals with the economic aspects of operation of gill netting and two boat midwater trawling conducted off Cochin. The data collected on two boat midwater trawling and gill netting during 1979 and 1980-81 are presented. Gill netting was profitable at the range of 17.5 and 25.2% while two midwater trawling was profitable at the rate of 18.5 %.
Sadanandan, K.A., Kartha, K.N., George, T.P., Krishna Iyer, H.   +3 more
openaire   +2 more sources

Feeding Habits and Prey Composition of Six Mesopelagic Fish Species from an Isolated Central Mediterranean Basin

Fishes
Mesopelagic fishes hold an important position in marine food webs, serving as a link between lower trophic levels and top predators and transferring energy from their deep mesopelagic habitat to shallower oceanic layers.
Nicholas Badouvas, Konstantinos Tsagarakis, Stylianos Somarakis, Paraskevi K. Karachle   +3 more
doaj   +1 more source

Distribution and abundance of large pelagic predatory bony fishes in the northwestern Pacific over a half-century

Water Biology and Security
Large pelagic predatory fishes play an important role in marine ecosystems, occupying the highest position in food webs and accumulating energy and organic matter produced by aquatic organisms of lower trophic levels. Among pelagic predatory fishes, more
Alexei M. Orlov, Igor V. Volvenko
doaj   +1 more source

Global estimates of fishing gear lost to the ocean each year. [PDF]

Sci Adv, 2022
Richardson K, Hardesty BD, Vince J, Wilcox C.   +3 more
europepmc   +1 more source

Studies on bridle lengths in one-boat midwater trawling

, 1982
Investigation on the comparative fishing trials to study the effect of bridles for a 10.5 m four equal panelled one-boat midwater trawl are described. Three bridle lengths of 20, 30 and 40 m were tested for relative efficiency evaluation. 30m bridles are found to be more suitable for the particular design and arbitrary selection of bridle lengths would
Mhalathkar, H.N., Ramarao, S.V.S., Mathai, P.G.   +2 more
openaire   +2 more sources

Energy audit and carbon footprint in trawl fisheries. [PDF]

Sci Data, 2022
Sala A, Damalas D, Labanchi L, Martinsohn J, Moro F, Sabatella R, Notti E.   +6 more
europepmc   +1 more source

Dynamic Simulation of a Midwater Trawl System's Behavior

Fisheries science, 2002
CHA, BONG-JIN., LEE, CHUN-WOO.
openaire   +2 more sources

Avoidance of a midwater frame trawl by herring larvae

ICES Journal of Marine Science, 1990
M. Heath, J. Dunn
openaire   +1 more source