Results 1 to 10 of about 35,534 (160)

Biometry, Distribution and Genetic Characterization of Blue Jack Mackerel Trachurus picturatus (Bowdich, 1825), a Rare Pelagic Fish Species in the Adriatic Sea [PDF]

open access: yesDiversity, 2020
The blue jack mackerel Trachurus picturatus (Bowdich, 1825) specimens (N = 155) were collected during the MEDITS survey, done along the eastern side, precisely, of the Croatian fishing ground in July 2018.
Barbara Zorica   +7 more
doaj   +3 more sources

Reproductive cycle of the blue jack mackerel, Trachurus picturatus (Bowdich, 1825), off the Portuguese continental coast

open access: yesAquatic Living Resources, 2019
This work provides for the first time a description of the reproductive biology of Trachurus picturatus in Portuguese continental waters (between 41° 49′ and 36° 57′ latitude North).
Costa Ana Maria
doaj   +3 more sources

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

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   +3 more sources

Negative impact on the reproductive potential of blue jack mackerel Trachurus picturatus by Kudoa infection of the ovary [PDF]

open access: yesDiseases of Aquatic Organisms, 2020
Reproduction of Trachurus picturatus off the western Portuguese coast was studied over 1 yr. During histological analyses, the presence of Kudoa sp. was detected in advanced vitellogenic oocytes. Kudoa infections are known to cause economic loss through the induction of post-mortem liquefaction of fish muscles, but ovarian infection as reported in this
Neves, A.   +14 more
openaire   +5 more sources

Stock assessment of the blue jack mackerel, Trachurus picturatus, in the North‐eastern Atlantic

open access: yesFisheries Management and Ecology, 2018
AbstractA total of 49,151 blue jack mackerel, Trachurus picturatus, (Bowdich) was collected in Madeira Island (North‐eastern Atlantic) between 2002 and 2016 to evaluate possible influence of fishing on landings and reproductive parameters. A decreasing trend in the length composition was observed over the study period and length at first maturity ...
Vasconcelos, Joana   +5 more
openaire   +5 more sources

Thinking of Fish Population Discrimination: Population Average Phenotype vs. Population Phenotypes

open access: yesFrontiers in Marine Science, 2021
The genetic polymorphism and phenotypic variation are key in ecology and evolution. The morphological variability of the contour of fish otoliths has been extensively used for the delimitation of stocks.
Joana Vasconcelos   +9 more
doaj   +2 more sources

Modelling Fish Growth with Imperfect Data: The Case of Trachurus picturatus

open access: yesFishes, 2022
Growth modelling is essential to inform fisheries management but is often hampered by sampling biases and imperfect data. Additional methods such as interpolating data through back-calculation may be used to account for sampling bias but are often ...
Ana Neves   +12 more
doaj   +2 more sources

Otolith phenotypic variability of the blue jack mackerel, Trachurus picturatus, from the Canary Islands (NE Atlantic): Implications in its population dynamic [PDF]

open access: yesFisheries Research, 2019
Studies have described the presence of different population units of blue jack mackerel, Trachurus picturatus, in the NE Atlantic region. However, the hypothesis of several populations has been subtly questioned due to the high similarity in the otolith shape among some regions.
Víctor Manuel Tuset   +3 more
openaire   +4 more sources

Seasonal Sensory Evaluation of Low Commercial Value or Unexploited Fish Species from the Portuguese Coast [PDF]

open access: yesFoods, 2020
Overfishing is increasing over time, and according to FAO (Food and Agriculture Organization), about one third of the world’s fish stocks are now overfished.
Frederica Silva   +10 more
doaj   +2 more sources

Age, growth and natural mortality of blue jack mackerelTrachurus picturatus(Carangidae) from the Canary Islands, Spain (NW Africa)

open access: yesAfrican Journal of Marine Science, 2018
Status assessment of exploited fish populations is a general requirement to ensure sustainability of fisheries in both global and local contexts. The blue jack mackerel Trachurus picturatus (Bowdich, 1825) remains  unassessed in a data-limited fishery in the eastern central Atlantic, within the waters of the Canary Islands (Spain) off the coast of ...
A Jurado-Ruzafa, MTG Santamaría
openaire   +4 more sources

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