Results 11 to 20 of about 685 (174)

Reproductive aspects of Jack mackerel Trachurus murphy

open access: yesRevista Peruana de Biología, 2013
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

open access: yesRevista Peruana de Biología, 2013
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

Variability in Fish Environmental DNA Concentration in Coastal Ecosystems at Hierarchical Levels: Focusing on the Magnitude, Structure, and Environmental Dependence. [PDF]

open access: yesEcol Evol
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

Effects of Biotic and Abiotic Factors on the Spatiotemporal Distribution of Round Scad (Decapterus maruadsi) in the Hainan Island Offshore Area

open access: yesDiversity, 2023
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

Development of species‐specific multiplex real‐time PCR assays for tracing the small pelagic fishes of North Pacific with environmental DNA

open access: yesEnvironmental DNA, 2022
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
doaj   +1 more source

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel Trachurus murphyi

open access: yesFishes, 2023
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
doaj   +1 more source

Adding Value to Bycatch Fish Species Captured in the Portuguese Coast—Development of New Food Products

open access: yesFoods, 2020
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
doaj   +1 more source

Evaluation of the Chilean Jack Mackerel ITQ System [PDF]

open access: yesMarine Resource Economics, 2016
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

Population Genetics of Chilean Jack Mackerel, Trachurus murphyi Nichols, 1920, (Pisces, Carangidae), in Waters of the South Pacific Ocean

open access: yesFishes, 2023
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

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