Results 11 to 20 of about 685 (174)
Reproductive aspects of Jack mackerel Trachurus murphy
The time series of monthly gonadosomatic index (GSI) and biannual size at first maturity of Jack mackerel Trachurus murphyiNichols 1920 in Peru between 1967 and 2012 is analyzed and discussed.
Ángel Perea +3 more
doaj +3 more sources
The Jack mackerel Trachurus murphyiand the environmental macro-scale variables
This paper analyses information on various macro environmental variables available since 1876 for the Southeast Pacific and more recent data on Jack mackerel Trachurus murphyi (Nichols, 1920) landings and biomass in the Peruvian sea, relating them to ...
Marco Espino
doaj +3 more sources
The Jack mackerel Trachurus murphyin Peru
Jorge Csirke
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Variability in Fish Environmental DNA Concentration in Coastal Ecosystems at Hierarchical Levels: Focusing on the Magnitude, Structure, and Environmental Dependence. [PDF]
Differences in eDNA concentration heterogeneity under the TPL framework suggest a concentration‐dependent survey design to minimize noise in eDNA quantification. In addition, whilst spatial and temporal variations in eDNA concentration could be primarily determined by ecological factors such as the distribution and dynamics of individuals, variations ...
Jo TS, Murakami H.
europepmc +2 more sources
Fishery resource and environmental data from four surveys conducted in the Hainan Island offshore area from March 2021 to June 2022 were used to investigate the spatiotemporal distribution of round scad (Decapterus maruadsi). A generalized additive model
Liangming Wang +5 more
doaj +1 more source
Environmental DNA (eDNA) has become a popular non‐invasive method to study the presence of organisms in the environment. To study the ecological behavior and migration routes of small pelagic fishes that are difficult to trace with traditional capturing ...
Marty Kwok‐Shing Wong +3 more
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The Subtropical Front (STF) plays a key role in the ecology of Chilean jack mackerel Trachurus murphyi. Nonetheless, there are few remote sensing studies of the STF in the open Southeast Pacific, and almost all of them have been conducted by satellite ...
Igor M. Belkin, Xin-Tang Shen
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We live in a world of limited biological resources and ecosystems, which are essential to feed people. Consequently, diversifying target species and considering full exploitation are essential for fishery sustainability.
Frederica Silva +14 more
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Evaluation of the Chilean Jack Mackerel ITQ System [PDF]
The debate in commercial fishery management has evolved from whether well-defined rights are necessary for sustainability to measuring the impacts of different rights-based system designs. Most assessments are on developed world fisheries. Using a unique collection of datasets, we develop counterfactuals to evaluate the impacts of the Chilean Jack ...
Kailin Kroetz +3 more
openaire +3 more sources
Estimating genetic diversity and population structure with polymorphic markers might provide information for the better management of fish that have economic importance.
Sandra Ferrada Fuentes +3 more
doaj +1 more source

