Results 51 to 60 of about 2,878 (177)

Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean

Global Biogeochemical Cycles, Volume 40, Issue 1, January 2026.
Abstract Methylated mercury (MeHg), including dimethylmercury and monomethylmercury (MMHg), is a pollutant of concern because it biomagnifies in marine biota. The formation of MeHg in the oceans, specifically at highly productive regions and at high oxygen levels, remains elusive.
Harald Biester, Marta Pérez‐Rodríguez, Adelina Calean, Marco Benkhettab Sindlev, Florian Lüskow, Evgeny A. Pakhomov, Ingrid Stimac, Scarlett Trimborn, Aurélie Dufour, Natalia Torres‐Rodriguez, Lars‐Eric Heimbürger‐Boavida, Frank Wenzhöfer, Ronnie N. Glud   +12 more
wiley   +1 more source

Ecology of Juvenile Walleye Pollock, Theragra chalcogramma: Papers from the workshop "The Importance of Prerecruit Walleye Pollock to the Bering Sea and North Pacific Ecosystems" Seattle, Washington, 28-30 October 1993 [PDF]

, 1996
The Alaska Fisheries Science Center (AFSC), National Marine Fisheries Service (NMFS), hosted an international workshop, 'The Importance of Prerecruit Walleye Pollock to the Bering Sea and North Pacific Ecosystems," from 28 to 30 October 1993.
Brodeur, Richard D., Hollowed, Anne B., Livingston, Patricia A., Loughlin, Thomas R.   +3 more
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FEATURES OF FISH BEHAVIOR IN THE ACTION ZONE OF MIDWATER TRAWL

Vestnik of Astrakhan State Technical University. Series: Fishing industry, 2017
Researches in the field of behavior and distribution of fish at different stages of fishing were conducted using midwater trawls in order to increase fishing efficiency, subject to the fact that, besides fish behavior, parameters of midwater trawls and types of trawling affect the efficiency of trawling.
Alexander Victorovich Melnikov, Dmitry Alekseevich Okunev, Svetlana Nikolaevna Khusainova   +2 more
openaire   +1 more source

Driving anchovy larvae by large mesh wings of pair midwater trawl.

NIPPON SUISAN GAKKAISHI, 1990
Wing meshes of commercial pair midwater trawls for catching anchovy larvae are as large as 360cm at the distal part and 15cm at the proximal part. Echo surveys were made using a 200kHz fish finder to examine if the larvae were driven into the net mouth by the wings of the extremely large meshes or escaped through the meshes.
Gunzo Kawamura, Koichiro Tabata
openaire   +2 more sources

PROBLEMS OF CONTROL OF MIDWATER TRAWL COMPLEXES USING EQUATIONS OF ELECTRIC AND MECHANICAL DRIVES OF TRAWL WINCHES

Vestnik of Astrakhan State Technical University. Series: Fishing industry, 2020
The paper touches upon the problems of transition to advanced digital, intelligent man-ufacturing technologies, robotic systems, new materials and design methods, the creation of systems for processing large amounts of data, machine learning and artificial intelligence.
Vyacheslav Valerievich Makarov, Alexey Olegovich Razhev, Aleksandr Nedostup   +2 more
openaire   +2 more sources

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

, 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

An overview of environmental labelling and claims on fish and seafood products in New Zealand supermarkets

Journal of the Royal Society of New Zealand, Volume 55, Issue 6, Page 2351-2365, December 2025.
ABSTRACT 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.
Xua^n Le Folcalvez, Sheila Skeaff, Kathryn E. Bradbury   +2 more
wiley   +1 more source

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

Frontiers 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, Ryan Driscoll, Kohei Matsuno, Kohei Matsuno, Rikuto Sugioka, Sara Driscoll, Marin van Regteren, Hiroko Sasaki, Ryuichi Matsukura, Jan Andries van Franeker, Hiroto Murase   +10 more
doaj   +1 more source

Shape and Hydrodynamic Characteristics of Canvas Kite for Midwater Trawl.

NIPPON SUISAN GAKKAISHI, 1999
キャンバスカイトの流体特性を明らかにするために, 形状の異なる5種類のキャンバスカイトの模型を用いて, 0.2から0.5までの4段階の異なるキャンバーと迎角30°から130°の範囲で水槽実験を行った。実験で得られた揚力と抗力から求めた最大揚力係数と最大揚抗比は, I型の反り比0.2と迎角度50°で, それぞれ1.37と2.00であった。また, 簡単な構造の拡網装置としてキャンバスカイトを用いるには, I型が最適形状であるといえた。
Munechika Ishizaki, Shigeru Fuwa
openaire   +2 more sources

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

, 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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