Results 21 to 30 of about 2,109,987 (351)

Modern state of aquatic biological resources of the Amur River basin and directions of their research

Известия ТИНРО, 2020
Current status of aquatic biological resources in the middle and lower parts of the Amur River basin, including Lake Khanka and the Amursky Liman, is assessed. Generally high abundance of the water organisms is noted, but a downward trend is revealed. In
N. V. Kolpakov, D. V. Kotsyuk, V. I. Ostrovsky, N. N. Semenchenko, V. N. Koshelev, A. P. Shmigirilov, E. V. Ostrovskaya, E. I. Barabanshchikov, T. V. Kozlova, S. E. Kulbachny, E. V. Podorozhnyuk, O. V. Vilkina, M. E. Shapovalov   +12 more
doaj   +1 more source

Directional bilateral asymmetry in otolith morphology may affect fish stock discrimination based on otolith shape analysis

ICES Journal of Marine Science, 2018
&NA; Otolith shape analysis is an efficient fish stock identification tool. However, most applications used left and right otoliths or only one of them arbitrarily chosen without testing for biases resulting from potential directional bilateral asymmetry
K. Mahé, Djamila Ider, A. Massaro, Oussama Hamed, A. Jurado‐Ruzafa, Patrícia Gonçalves, A. Anastasopoulou, A. Jadaud, C. Mytilineou, R. Elleboode, Z. Ramdane, M. Bacha, R. Amara, H. de Pontual, B. Ernande   +14 more
semanticscholar   +1 more source

Coastal fishes in the northwestern Okhotsk Sea (westward from 147o E): fishery and prospects of its development

Известия ТИНРО, 2020
Fishery at the northwestern Okhotsk Sea coast is analyzed for the period from 2000 to 2019. Pacific herring, saffron cod, pacific cod, capelin, flounders (Limanda aspera, Pleuronectes quadrituberculatus and Platichthys stellatus), and smelts (Hypomesus ...
V. P. Ovsyannikov
doaj   +1 more source

An ecological element for selecting enhancement stock based on the stability of nekton community structure. [PDF]

Sci Rep
The abundance-biomass comparison curves (ABC curves) method was adopted to analyze the temporal stability of the fish and nekton community structure in Laoshan Bay, China, during the spring and summer seasons from 2013 to 2015.
Li ZY, Lin Q.
europepmc   +2 more sources

Selected haematological changes in Clarias gariepinus (Burchell, 1822) infected with a Trypansosoma sp. from the Vaal Dam, South Africa

Onderstepoort Journal of Veterinary Research, 2013
The use of haematological techniques to assess fish health is generally accepted. The aim of the current study was to determine selected haematological changes that occur in Clarias gariepinus (Burchell, 1822). infected with trypanosomes.
Maryke L. Ferreira, Annemarie Avenant-Oldewage   +1 more
doaj   +1 more source

Magnitude of bycatch of Hippocampus patagonicus, an endangered species, in trawl fisheries in Southeast and South Brazil

Frontiers in Marine Science, 2023
One of the biggest threats to the world’s fish stocks is trawling with indiscriminate capturing of non-target organisms, typically referred to as bycatch. Some species of seahorses are globally threatened and are often targets caught as bycatch.
Rosana Beatriz Silveira, Marcelo Derzi Vidal, José Rodrigo Santos Silva   +2 more
doaj   +1 more source

Sustainable exploitation of temperate fish stocks [PDF]

Biology Letters, 2009
The theory of maximum sustainable yield (MSY) underpins many fishery management regimes and is applied principally as a single species concept. Using a simple dynamic biomass production model we show that MSY can be identified from a long time series of multi-stock data at a regional scale in the presence of species interactions and environmental ...
Sparholt, Henrik, Cook, Robin M.
openaire   +3 more sources

Stocks and fishery of cod (Gadus macrocephalus, Gadidae) in the northwestern Bering Sea in 1965–2022

Известия ТИНРО, 2023
For pacific cod in the northwestern Bering Sea, biomass of the summer-fall feeding aggregations in the specified area of their highest density (polygon) is considered as a stock unit.
A. B. Savin
doaj   +1 more source

Biological parameters of fish stock estimation in Cirata Reservoir (West Java, Indonesia): A comparative analysis of bio-economic models

, 2017
Anna Z, Handaka AA, Maulina I, Rizal A, Hindayani P. 2017. Biological parameters of fish stock estimation in Cirata Reservoir (West Java, Indonesia): A comparative analysis of bio-economic models. Biodiversitas 18: 1468-1474. Fish resources in reservoirs
Z. Anna, A. Suryana, Ine Maulina, A. Rizal, Purna Hindayani   +4 more
semanticscholar   +1 more source

Assessing the role of host traits as drivers of the abundance of long-lived parasites in fish-stock assessment studies.

Journal of Fish Biology, 2016
In order to identify the best tools for stock assessment studies using fish parasites as biological indicators, different host traits (size, mass and age and their interaction with sex) were evaluated as descriptors of cumulative patterns of both ...
P. Braicovich, E. Ieno, M. Sáez, J. Despos, J. Timi   +4 more
semanticscholar   +1 more source