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

