Antarctic 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
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Species Composition, Abundance, and Vertical Distribution of the Stomiid (Pisces: Stomiiformes) Fish Assemblage of the Gulf of Mexico [PDF]
Species composition, abundance, and vertical distribution of the stomiid fish assemblage were investigated in the eastern Gulf of Mexico, a low-latitude, oligotrophic oceanic ecosystem.
Hopkins, T. L., Sutton, Tracey
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Experimental investigation and numerical analysis to develop low-energy large-midwater trawls
Fuel consumption in fisheries is a primary concern because of its effects on the environment and the costs incurred by fishermen. Many studies have been conducted to reduce the fuel consumption in fishing operations. Fuel consumption due to fishing gear during a fishing operation is generally related to the hydrodynamic resistance on the gear.
Jihoon Lee +3 more
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Latitudinal changes in the euphausiid assemblages were compared to the morphological structure (size and compactness) of the sound scattering layer (SSL) during ten 24-h surveys made in October 1994 along the west coast of Baja California, México. During
J. Gómez-Gutiérrez +3 more
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A Midwater Trawl Net with Mouth Opening Canvas Devices for Stock Assessments.
The purpose of this work is to develop a midwater trawl net to survey fish stock. A constant net mouth opening is necessary in order to measure fish stock densities accurately. For this purpose, canvas kites were attached to the midwater trawl net, instead of floats and weights.The area of canvas kites attached to the headrope and groundrope was ...
Takashi Yonezawa +4 more
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The Ragfish, Icosteus aenigmaticus Lockington, 1880: A Synthesis of Historical and Recent Records From the North Pacific Ocean and the Bering Sea [PDF]
Knowledge of the distribution and biology of the ragfish, Icosteus aenigmaticus, an aberrant deepwater perciform of the North Pacific Ocean, has increased slowly since the first description of the species in the 1880’s which was based on specimens ...
Allen , George H.
core
Lanternfish (Myctophidae) from eastern Brazil, southwest Atlantic Ocean
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
doaj
Comparisons of measured volume backscattering strengths with predictions based on midwater trawls [PDF]
Volume backscattering strengths have been measured close in space and time to midwater trawls in which small deep-sea fishes were caught. The acoustic experimental method was to deploy both an omnidirectional and a directional hydrophone and to detonate small explosive charges.
openaire +1 more source
Assessment of alternative strategies for sludge disposal into deep ocean basins off Southern California [PDF]
The general framework of engineering alternatives for regional ocean sludge disposal is well described in a report by Raksit, and will not be repeated here.
Brooks, Norman H. +3 more
core
Mesopelagic Fish Biodiversity in the Ligurian Cetacean Sanctuary
Mesopelagic fish belonging to the families Gonostomatidae, Phosichthyidae, Sternoptychidae, Stomiidae, Paralepididae, Myctophidae, Evermannellidae, Microstomatidae, and Nemichthyidae were sampled using an Isaacs Kidd Midwater Trawl (IKMT) in the Ligurian
Luca Lanteri +7 more
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