Results 21 to 30 of about 1,271 (163)
Journal of Fish Biology, Volume 103, Issue 4, Page 815-827, October 2023., 2023 Abstract Large‐scale assessments of fish and shellfish populations may be valuable for identifying the impacts of fishing pressure on stocks, but they are rarely possible due to a lack of long‐term datasets. In this study, a two‐part mixed‐effect model for lognormal data was used to obtain historical abundance indices for 16 priority fish and shellfish
Régis Santos +2 more
wiley +1 more source
Journal of Fish Biology, Volume 102, Issue 5, Page 1219-1236, May 2023., 2023 Abstract Otolith shape analysis has been one of the most used approaches to study population structure in the past decades. Currently, two sets of shape descriptors are used to perform otolith shape analysis, namely, Elliptic Fourier descriptor (EFd), which focuses on the overall otolith shape differences, and Discrete Wavelet descriptor (DWd), which ...
João Neves +3 more
wiley +1 more source
Fisheries Oceanography, Volume 30, Issue 5, Page 569-583, September 2021., 2021 Abstract To understand the population structure of the Japanese jack mackerel Trachurus japonicus in coastal areas adjacent to the Kuroshio Current (referred to as the “CAK”), we analyzed size composition and commercial landing data of juvenile fish in these areas for the period 2005–2015.
Kazuo Ishikawa +12 more
wiley +1 more source
Thinking of Fish Population Discrimination: Population Average Phenotype vs. Population Phenotypes
Frontiers 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 +1 more source
A study on the food and feeding habits of Trachurus trachurus, Tr. trecae, Tr. picturatus and Caranx rhonchus in the region of Cape Blanc [PDF]
Acta Ichthyologica et Piscatoria, 1976 The author reports his study on the changes in the food composition during the growth of fishes in length, the 24-hour rhythm of feeding and the food convergence.
A. Kompowski
doaj +3 more sources
Diversity, 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 +1 more source
Weight–length relations for 103 fish species from the southern Aegean Sea, Turkey [PDF]
Acta Ichthyologica et Piscatoria, 2014 Using a traditional, commercial, crustacean bottom trawl net we collected fish samples from the southern Aegean Sea, from Dec 2009 to Nov 2010, at depths of 30–225 m.
G. Bilge +3 more
doaj +3 more sources
Frontiers in Marine Science, 2015 The blue jack mackerel Trachurus picturatus is a pelagic fish widely distributed in the NE Atlantic and also found in the Mediterranean and Black Seas. It is an economically important resource in the Macaronesian islands of Azores, Madeira and Canaries ...
Cláudia Moreira +3 more
doaj +1 more source
Reproduction of the Blue Jack Mackerel, Trachurus picturatus, in Western Portugal: Microscopic gonad analysis reveals indeterminate fecundity and skipped spawning patterns [PDF]
, 2022 This study was partially supported by the European Maritime and Fisheries Fund MAR2020 project “VALOREJET: Valorização de espécies rejeitadas e de baixo valor comercial”, MAR- 01.03.01-FEAMP-0003 and by Fundação para a Ciência e Tecnologia through ...
Assis, Carlos +12 more
core +4 more sources
Fish communities associated with FADs
Scientia Marina, 1999 Two groups of six fish aggregating devices (FADs) were deployed at two locations off the eastern coast of Majorca (Western Mediterranean). Samples were obtained fortnightly throughout a two-year period by means of hauls performed with an experimental ...
S. Deudero +4 more
doaj +1 more source