Search results for " (THUNNUS THYNNUS)"

showing 3 items of 3 documents

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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Tracking multiple pathways of waste from a northern bluefin tuna farm in a marine-coastal area.

2011

Aquaculture of bluefin tuna in Mediterranean coastal waters has generated growing concern about the negative environmental effects. In the present isotopic study we examined the dispersal and fate of organic matter derived from a Mediterranean tuna farm in the surrounding environment. An overall enrichment in the heavy nitrogen isotope was found in the feed and in farmed tunas, indicating the input of isotopically traceable organic matter in the system. Waste was clearly traceable in the water column up to 1000 m from the cages, while only slight accumulation occurred in the sediment just below the cages. Waste was isotopically shown also to contribute to the diet of demersal and benthopela…

Settore BIO/07 - EcologiaGeologic SedimentsAquacultureAquatic ScienceOceanographyDemersal zoneMass SpectrometryDemersal fishWater columnAquacultureAnimalsOrganic matterSeawaterchemistry.chemical_classificationWaste ProductsAnalysis of VariancebiologyNitrogen Isotopesbusiness.industryTunaGeneral MedicineBiodegradable wastebiology.organism_classificationPollutionFisheryOceanographychemistryBenthic zoneaquaculture nitrogen stable isotopes Thunnus thynnus organic waste MediterraneanHydrodynamicsEnvironmental sciencebusinessTunaMarine environmental research
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Nitrogen stable isotopes as tracers of biodeposition from a tuna farm in the Western Mediterranean

2007

Tuna farming stable isotopes Mediterranean Sea Thunnus thynnus
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