Results 71 to 80 of about 4,677 (222)
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
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 +2 more
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Pacific Herring, Clupea pallasi, spawning population assessment for San Francisco Bay, 1992-93 [PDF]
, 1997 We conducted hydroacoustic surveys, spawn surveys, and sampled schools and fishery landings from 8 November 1992 through 18 March 1993 to assess the status of San Francisco Bay's Pacific herring spawning population.
Oda, Kenneth T., Watters, Diana L.
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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
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Pacific Hake, Merluccius productus, Autecology: A Timely Review [PDF]
, 2007 Pacific hake, Merluccius productus, the most abundant groundfish in the California Current Large Marine Ecosystem (CCLME), is a species of both commercial significance, supporting a large international fishery, and ecological importance, connecting ...
Cooke , Kenneth C. +4 more
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Did a Shifting Ecological Baseline Mask the Predatory Effect of Striped Bass on Delta Smelt? [PDF]
, 2020 Striped Bass, Morone saxatilis, has been an established member of the San Francisco Estuary’s (estuary’s) aquatic community for nearly a century and a half.
Nobriga, Matthew L., Smith, Wiliam E.
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Ecology and Evolution, Volume 15, Issue 11, November 2025.Trophic relationships indicated a hysteretic food web response to restoration. Plankton was the primary food source for fish and invertebrates in BYD. Aquatic plants primarily contributed to the humus formation in BYD. ABSTRACT Shallow freshwater lakes are vital for ecological and climate regulation, but many are degrading. Although restoration efforts
Yajun Qiao +9 more
wiley +1 more source
Early life-history studies of nearshore rockfishes and lingcod off Central California, 1987-92 [PDF]
, 1996 This study focused on the physical and biological processes that influence the distribution, abundance, growth, and survival of young-of-the-year (YOY) rockfishes and lingcod along the central California coast.
Gingras, Marty L. +3 more
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Molecular Ecology Resources, Volume 25, Issue 8, November 2025.ABSTRACT Understanding diet composition is essential for unravelling trophic interactions in aquatic ecosystems. DNA metabarcoding, utilising various variable regions of the 18S rRNA gene, is increasingly employed to investigate zooplankton diet composition.
Nora‐Charlotte Pauli +6 more
wiley +1 more source