Results 41 to 50 of about 546,732 (198)

Conserving Atlantic Bluefin Tuna with Spawning Sanctuaries [PDF]

, 2010
Recent population assessments indicate that Atlantic bluefin tuna populations in both the western and eastern Atlantic need increased protection to rebuild their depleted populations, yet current management measures are not working.

core   +2 more sources

Comparative assessment of the reproductive status of female Atlantic bluefin tuna from the Gulf of Mexico and the Mediterranean Sea.

PLoS ONE, 2014
Despite attention focused on the population status and rebuilding trajectory of Atlantic bluefin tuna (Thunnus thynnus), the reproduction and spawning biology remains poorly understood, especially in the NW Atlantic.
Jessica M Knapp, Guillermo Aranda, Antonio Medina, Molly Lutcavage   +3 more
doaj   +1 more source

Age and growth rate of juvenile bluefin tuna Thunnus thynnus from the Mediterranean sea (Sicily, Italy)

Scientia Marina, 2005
The microstructural analysis of the sagittal otoliths of juvenile Atlantic bluefin tuna, Thunnus thynnus, can be used to estimate the age and growth rate of young-of-the-year individuals born in the Mediterranean.
Mario La Mesa, Mauro Sinopoli, Franco Andaloro   +2 more
doaj   +1 more source

Natal Homing and Connectivity in Atlantic Bluefin Tuna Populations

Science, 2008
Atlantic bluefin tuna populations are in steep decline, and an improved understanding of connectivity between individuals from eastern (Mediterranean Sea) and western (Gulf of Mexico) spawning areas is needed to manage remaining fisheries. Chemical signatures in the otoliths of yearlings from regional nurseries were distinct and served as natural tags ...
Rooker, Jay R., Secor, David H., De Metrio, Gregorio, Schloesser, Ryan, Block, Barbara A., Neilson, John D.   +5 more
openaire   +3 more sources

Stable Isotope Analyses of Yellowfin and Blackfin Tuna Eye Lenses Reveal Life History Patterns

Fisheries Oceanography, EarlyView.
ABSTRACT Spatial geography, ontogenetic movement, and trophic patterns of mobile species are key elements of species life history, and knowledge of them is critical for effective marine resource management. For yellowfin tuna (Thunnus albacares; YFT) and blackfin tuna (Thunnus atlanticus; BLFT), residency durations and ontogenetic movements in the Gulf
Kylee M. Rullo, Ernst B. Peebles, Julie L. Vecchio, Steven A. Murawski   +3 more
wiley   +1 more source

A new satellite technology for tracking the movements of Atlantic bluefin tuna [PDF]

Proceedings of the National Academy of Sciences, 1998
The movements of Atlantic bluefin tuna ( Thunnus thynnus thynnus ) have captured the interest of scientists and fishers since the time of Aristotle. This tuna is unique among bony fish for maintaining elevated body temperatures (21°C above ambient) and attaining large size (up to 750 kg).
B A, Block, H, Dewar, C, Farwell, E D, Prince   +3 more
openaire   +2 more sources

Development of Single-Nucleotide Polymorphism (SNP)-Based Species-Specific Real-Time PCR Assays for Authenticating Five Highly Priced Tuna

Foods
Tuna are economically important as food resources in food markets. However, because tuna is often processed into steaks or fillets, the meat can be difficult to identify through morphological features.
Meng Qu, Yanhua Jiang, Na Li, Yingying Guo, Wenjia Zhu, Na Li, Xinnan Zhao, Lin Yao, Lianzhu Wang   +8 more
doaj   +1 more source

Spawning behaviour and post-spawning migration patterns of atlantic bluefin tuna (Thunnus thynnus) ascertained from satellite archival tags. [PDF]

PLoS ONE, 2013
Spawning behaviour of Atlantic bluefin tuna (Thunnus thynnus) was investigated using electronic satellite tags deployed in the western Mediterranean spawning ground, around the Balearic Islands (years 2009-2011).
Guillermo Aranda, Francisco Javier Abascal, José Luis Varela, Antonio Medina   +3 more
doaj   +1 more source

Sea Surface Temperature Influences Migratory Patterns of the Atlantic Bluefin Tuna (Thunnus thynnus) Between the Atlantic Ocean and the Mediterranean Sea

Fisheries Oceanography, EarlyView.
ABSTRACT Oceanographic variability plays a critical role in shaping the migratory behavior of the Atlantic bluefin tuna (Thunnus thynnus). This study investigates the thermal preferences of individuals migrating through the Strait of Gibraltar and the Gulf of Cádiz during pre‐ and post‐spawning movements.
Enrique Sánchez‐Fabrés, Ma Pilar Tugores, Ismael Hernández Carrasco, Andres Ospina‐Alvarez, Francisco J. Abascal Crespo, Ricardo Sanchez‐Leal, Baptiste Mourre, Diego Alvarez‐Berastegui   +7 more
wiley   +1 more source

Spatially explicit estimates of stock sizes, structure and biomass of herring and blue whiting, and catch data of bluefin tuna [PDF]

Earth System Science Data, 2015
The North Atlantic is a productive marine region which has supported important commercial fisheries for centuries. Many of these fisheries have exploited the pelagic species, including herring, blue whiting and tuna.
G. Huse, B. R. MacKenzie, V. Trenkel, M. Doray, L. Nøttestad, G. Oskarsson   +5 more
doaj   +1 more source