Pacific herring, Clupea harengus pallasi, studies in San Francisco Bay, April 1986 to March 1987 [PDF]
Herring schools were surveyed hydroacoustically and sampled in San Francisco Bay from late October 1986 to March 1987. Eight large schools (greater than 1000 tons each) spawned from December to February and seven smaller schools were detected throughout ...
Moore, Thomas O., Reilly, Paul N.
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Did a Shifting Ecological Baseline Mask the Predatory Effect of Striped Bass on Delta Smelt? [PDF]
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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Shape and Hydrodynamic Characteristics of Canvas Kite for Midwater Trawl.
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
Pacific herring, Clupea harengus pallasi, studies in San Francisco Bay, Monterey Bay, and the Gulf of the Farallones, July 1982 to March 1983 [PDF]
Herring stocks were hydroacoustically surveyed and sampled in San Francisco Bay from November 1982 to March 1983. Twelve discrete herring schools were identified, all of which spawned between November 7 and February 23. One additional school was found in
Moore, Thomas O., Reilly, Paul N.
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Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean
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 +12 more
wiley +1 more source
Pacific herring, Clupea harengus pallasi, studies in San Francisco and Tomales Bays, April 1989 to March 1990 [PDF]
Herring schools were surveyed hydroacoustically in San Francisco Bay from early November 1989 through mid March 1990. Seven large schools (>1000 tons) and two smaller ones were detected. The total acoustic biomass estimate based on visual integration
Oda, Kenneth T., Wendell, Frederick
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Intraspecific variation in prey quality affects the consumption rates of top predators
This study reveals overlooked intraspecific variation in prey quality and its influence on predator energy budgets. By identifying key ecological drivers, we emphasize the need to integrate such variability into bioenergetic models to improve predictions of predator foraging and ecosystem responses to environmental change.
Stephanie E. Nehasil +3 more
wiley +1 more source
Field surveys were conducted along 140°E in the Southern Ocean north of Terre Adelie during three cruises: the KH cruise by RV Hakuho Maru, and TC1 and TC2 cruises by RV Tangaroa during the austral summers of 2002 and 2003.
Atsushi Tanimura +7 more
doaj +1 more source
Pacific Hake, Merluccius productus, Autecology: A Timely Review [PDF]
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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