Results 21 to 30 of about 1,092 (209)
Identification of three cephalopods from the Iranian waters of the Gulf of Oman (Continental shelf area) [PDF]
Iranian Journal of Animal Biosystematics, 2021 This study aimed to find new species of cephalopods in the Iranian waters of the Gulf of Oman. Two species of Oegopsida (Abralia steindachneri Weindl, 1912 and Joubiniteuthis portieri (Joubin, 1916)) and also one species of Sepiida (Sepia omani Adam ...
Reza Badali +3 more
doaj +1 more source
A Modern Ghost Story: Increased Selective Mortality of Salmon Under Climate Extremes. [PDF]
Glob Chang BiolWe tracked nine cohorts of Chinook salmon (Oncorhynchus tshawytscha) from California's American River across their life cycle, using otolith and eye lens isotope analysis to identify the habitats and river conditions associated with the greatest losses of early migrants.
Sturrock AM +9 more
europepmc +2 more sources
A Gear Shape of a Midwater Trawl and Its Change [PDF]
Bulletin of the Korean society of Fisheries Technology, 2002 How to estimate the shape of trawl net and ropes of a midwater trawl on full scale was described by implementing a three-dimensional semi-analytic treatment of a towing cable system with the field experiments obtained with the Scanmar system.
Matuda, Ko +4 more
openaire +3 more sources
Известия ТИНРО, 2023 A technique for designing the rope-net shell of midwater trawl is described on example of the trawl Sirius Shelf project AS 11.012.000 designed by Aquaservice Ltd. Diagrams of the rope-net shell parameters distribution along trawl are used. The technique
L. M. Simkin
doaj +1 more source
Frontiers in Marine Science, 2021 Antarctic krill (Euphausia superba) is harvested using different design midwater trawls. Knowing the selective properties between trawls is crucial information for the management of the krill resources.
Zhongqiu Wang +13 more
doaj +1 more source
Известия ТИНРО, 2020 Calculating of horizontal opening for a trawl mouth using the mathematical model of midwater trawl system developed by V.I. Gabryuk gives the errors 25.4 and 32.9 %, on average, for the trawls RT 57/360 m and RT 80/396 m, respectively.
O. N. Kruchinin +2 more
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Modern specialized fishery of sea fish in the western Bering Sea
Известия ТИНРО, 2021 The shelf and continental slope of the western Bering Sea, being among the most productive areas of the Far-Eastern Seas of Russia, became exploited by commercial fishery half a century ago, after introduction of 200-mile exclusive economic zones in 1977
A. O. Zolotov
doaj +1 more source
Engineering calculation of a midwater fishing trawl
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, 2023 This paper presents a method for calculating the power and geometric properties of a midwater fishing trawl, which is a complicated engineering structure made up of tied flexible (threads, ropes, flap) and rigid (rigging, trawl boards) elements. A computational model, the functional relations for internal forces and geometric characteristics of the ...
Aleksey O. Razhev, Aleksandr A. Nedostup
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Frontiers in Marine Science, 2022 The Antarctic krill (Euphausia superba) is one of the most abundant resources in the ocean, which provides food for several important species in the Antarctic Ocean, and is targeted commercially by humans for many decades.
Hao Tang +11 more
doaj +1 more source