Results 101 to 110 of about 4,677 (222)

Spatial and temporal changes in assemblage structure of zooplankton and pelagic fish in the eastern Bering Sea across varying climate conditions

open access: yesИзвестия 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

PICES Press, Vol. 13, No. 1, January 2005 [PDF]

open access: yes, 2005
The state of PICES science - 2004 (pdf 0.7 MB) 2004 Wooster Award (pdf 0.2 MB) Micronekton – What are they and why are they important? (pdf 0.5 MB) Upscaling for a better understanding of climate links to ecosystems (pdf 0.1 MB) PICES Interns ...

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Demography of Antarctic krill (Euphausia superba) from the KY1804 austral summer survey in the eastern Indian sector of the Southern Ocean (80 to 150˚E), including specific investigations of the upper surface waters

open access: yesFrontiers in Marine Science
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
doaj   +1 more source

Species Composition, Abundance, and Vertical Distribution of the Stomiid (Pisces: Stomiiformes) Fish Assemblage of the Gulf of Mexico [PDF]

open access: yes, 1996
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
core   +1 more source

Experimental investigation and numerical analysis to develop low-energy large-midwater trawls

open access: yesChina Ocean Engineering, 2017
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
openaire   +2 more sources

Latitudinal changes of euphausiid assemblages related to the morphological variability of the sound scattering layer along Baja California, October 1994

open access: yesScientia Marina, 1999
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
doaj   +1 more source

A Midwater Trawl Net with Mouth Opening Canvas Devices for Stock Assessments.

open access: yesNIPPON SUISAN GAKKAISHI, 1996
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
openaire   +2 more sources

Lanternfish (Myctophidae) from eastern Brazil, southwest Atlantic Ocean

open access: yesLatin 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
doaj  

Comparisons of measured volume backscattering strengths with predictions based on midwater trawls [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1981
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

The Ragfish, Icosteus aenigmaticus Lockington, 1880: A Synthesis of Historical and Recent Records From the North Pacific Ocean and the Bering Sea [PDF]

open access: yes, 2001
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.
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