Results 41 to 50 of about 540,884 (400)

Arctic cod (Boreogadus saida, Gadidae) in the Chukchi Sea and adjacent waters

open access: yesИзвестия ТИНРО, 2021
Biology, spatial distribution, migrations, and stock dynamics are considered for arctic cod in the Russian sector of the Chukchi Sea and adjacent waters of the northern Bering Sea on the data of trawl surveys conducted by Pacific Res. Inst.
A. B. Savin
doaj   +1 more source

Hydrographic variability and biomass fluctuations of European anchovy (Engraulis encrasicolus) in the Central Mediterranean Sea: Monetary estimations and impacts on fishery from Lagrangian analysis [PDF]

open access: yesarXiv, 2021
During the last decades, scientific community has been investigating both biological and hydrographic processes that affect fisheries. Such an interdisciplinary and synergic approach is nowadays giving a fundamental contribution, in particular, in connecting the dots between hydrographic phenomena and biomass variability and distribution of small ...
arxiv  

Square Root Laws in Structured Fisheries [PDF]

open access: yes, 2020
We introduce the term net-proliferation in the context of fisheries and establish relations between the proliferation and net-proliferation that are economically and sustainably favored. The resulting square root laws are analytically derived for species following the Beverton-Holt recurrence but, we show, can also serve as reference points for other ...
arxiv   +1 more source

High fishery catches through trophic cascades in China

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2016
Significance Fishing marine ecosystems indiscriminately and intensely can have negative impacts on biodiversity, but it may increase the biomass of fish available for capture in the system. We explore the possibility that China’s high fishery catches are
Cody S. Szuwalski   +3 more
semanticscholar   +1 more source

Results of salmon fishery in the Far-Eastern fishery basin in 2022

open access: yesИзвестия ТИНРО, 2023
Data on forecasted catch, actual catch and their ratio are presented for the main species of pacific salmon; the salmon fishery in 2022 is analyzed. The forecast of the salmon annual catch in the Far-Eastern fishery basin for 2022 should be recognized as
V. A. Belyaev, A. N. Kanzeparova
doaj   +1 more source

Hazard function models to estimate mortality rates affecting fish populations with application to the sea mullet (Mugil cephalus) fishery on the Queensland coast (Australia) [PDF]

open access: yes, 2015
Fisheries management agencies around the world collect age data for the purpose of assessing the status of natural resources in their jurisdiction. Estimates of mortality rates represent a key information to assess the sustainability of fish stocks exploitation.
arxiv   +1 more source

Fisheries statistics of Kainji Lake, northern Nigeria, Nov. 1994 - Dec. 1998 [PDF]

open access: yes, 1999
Results are presented for the first 4 years data (1994-1998) of the Kainji Lake catch assessment survey, collected and analysed by the Nigerian-German Kainji Lake Fisheries Promotion Project.
Abiodun, J.A., du-Feu, T.A.
core  

Ecosystem‐Based Fisheries Management for Social–Ecological Systems: Renewing the Focus in the United States with Next Generation Fishery Ecosystem Plans

open access: yes, 2018
Resource managers and policy makers have long recognized the importance of considering fisheries in the context of ecosystems; yet, movement towards widespread Ecosystem‐based Fisheries Management (EBFM) has been slow. A conceptual reframing of fisheries
Kristin N. Marshall   +15 more
semanticscholar   +1 more source

Detailed kinship estimation for detecting bias among breeding families in a reintroduced population of the endangered bagrid catfish Tachysurus ichikawai

open access: yesPopulation Ecology, EarlyView.
In the process of captive breeding and reintroduction of endangered animal species, it is crucial to minimize familial bias in reproductive success during the reintroduction phase to preserve genetic diversity. In this study, we attempted to identify the familial lineage of individuals of the endangered bagrid fish Tachysurus ichikawai born at the ...
Hinano Mizuno   +5 more
wiley   +1 more source

Multidimensional assessment of sustainability extractivism of mangrove oyster Crassostrea spp. in the estuary of Cananéia, São Paulo, Brazil

open access: yesBrazilian Journal of Biology
This study was carried out with groups of extractivists of mangrove oysters in the estuary of Cananéia, São Paulo State, Brazil, between the years 1999 and 2007 with the objective to evaluate and compare trends in the sustainability of this activity, in ...
IC Machado, L Fagundes, MB Henriques
doaj   +1 more source

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