Search results for " Thunnus alalunga"

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Unveiling the Relationship Between Sea Surface Hydrographic Patterns and Tuna Larval Distribution in the Central Mediterranean Sea

2021

Thunnus thynnus (Atlantic bluefin tuna, ABT) and other tuna species reproduce in the Mediterranean Sea during the summer period. Despite the Central Mediterranean Sea, the Strait of Sicily in particular, being a key spawning site for many tuna species, little is known on the effects of oceanographic variability on their larval distribution in this area. The abundance and presence-absence of larval specimens for three tuna species (ABT, bullet tuna and albacore) were modeled in order to examine their relationships with environmental factors, by analysing historical in situ information collected during seven annual surveys (2010–2016). The results revealed that most tuna larvae for the three …

Mediterranean climateichthyoplanktonSciencespawningOcean EngineeringAquatic ScienceQH1-199.5OceanographyMediterranean seaAuxis rocheiAbundance (ecology)Auxis rochei ichthyoplankton Mediterranean Sea multivariate statistical analysis spawning Thunnus alalunga Thunnus thynnusThunnus alalungaWater Science and Technologymultivariate statistical analysisGlobal and Planetary ChangebiologyAlbacoreQfood and beveragesGeneral. Including nature conservation geographical distributionIchthyoplanktonbiology.organism_classificationOceanographyThunnus thynnusBullet tunaTunahuman activitiesThunnusFrontiers in Marine Science
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STUDY OF LARGE PELAGIC FISH LIFE-HISTORY TRAITS IN THE CENTRAL MEDITERRANEAN SEA AND PROJECTION UNDER FUTURE CLIMATE CHANGE SCENARIOS

2022

One of the most sensitive life periods for each species is the first life stages (larval and juvenile). The survival rates of pelagic fish larvae in these phases are usually very low and subject to fluctuations, consequently affecting the recruitment of new generations. From historical Tuna landing data, the stock's abundance is fluctuating, especially for Atlantic Bluefin Tuna (ABT) (Thunnus thynnus, Linnaeus, 1758) Eastern stock. It is the largest Mediterranean Tuna and one of the most expensive species in the world. Some studies hypothesized that the fluctuations are dictated by environmental factors, particularly in the early life stages. Therefore, it appears necessary to better unders…

multivariate statistical analysiLagrangian simulationichthyoplanktontunaAuxis rochei: Thunnus alalungaMediterranean Seabackward trajectoriespawning habitatspawningThunnus thynnularval habitat
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