scholarly journals Cardicola forsteri (Digenea: Sanguinicolidae) from the Heart of a Northern Bluefin Tuna, Thunnus thynnus (Scombridae), in the Northwest Atlantic Ocean

10.1654/4135 ◽  
2004 ◽  
Vol 71 (2) ◽  
pp. 245-246 ◽  
Author(s):  
Stephen A. Bullard ◽  
Robert J. Goldstein ◽  
Robert H. Goodwin ◽  
Robin M. Overstreet
Keyword(s):  
Atlantic Ocean ◽  
Bluefin Tuna ◽  
Thunnus Thynnus ◽  
Northwest Atlantic

Polychlorinated biphenyls and organochlorine pesticides as intrinsic tracer tags of foraging grounds of bluefin tuna in the northwest Atlantic Ocean

2016 ◽  
Vol 105 (1) ◽  
pp. 265-276 ◽  
Author(s):  
Ashok D. Deshpande ◽  
Rebecca M. Dickhut ◽  
Bruce W. Dockum ◽  
Richard W. Brill ◽  
Cameron Farrington
Keyword(s):  
Atlantic Ocean ◽  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Bluefin Tuna ◽  
Northwest Atlantic

Movements of bluefin tuna (Thunnus thynnus) in the northwestern Atlantic Ocean recorded by pop-up satellite archival tags

2004 ◽  
Vol 146 (2) ◽  
pp. 409-423 ◽  
Author(s):  
S. G. Wilson ◽  
M. E. Lutcavage ◽  
R. W. Brill ◽  
M. P. Genovese ◽  
A. B. Cooper ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Bluefin Tuna ◽  
Thunnus Thynnus ◽  
Archival Tags

DETAILED RECORDS OF THE ICE-RAFTED DETRITUS IN SEDIMENTS FROM THE ORPHAN KNOLL, NORTHWEST ATLANTIC OCEAN

2020 ◽  
Author(s):  
Alisha L. Guglielmi ◽  
◽  
James L. Cullen ◽  
Annette Lott ◽  
Jerry F. McManus
Keyword(s):  
Atlantic Ocean ◽  
Northwest Atlantic

Active prey selection in developing larvae of Atlantic bluefin tuna (Thunnus thynnus) in spawning grounds of the Gulf of Mexico

2021 ◽  
Author(s):  
Akihiro Shiroza ◽  
Estrella Malca ◽  
John T Lamkin ◽  
Trika Gerard ◽  
Michael R Landry ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Prey Selection ◽  
Bluefin Tuna ◽  
Gut Contents ◽  
Physical Factors ◽  
Larval Rearing ◽  
Thunnus Thynnus ◽  
Small Copepod ◽  
Atlantic Bluefin Tuna ◽  
Larval Stages

Abstract Bluefin tuna spawn in restricted areas of subtropical oligotrophic seas. Here, we investigate the zooplankton prey and feeding selectivity of early larval stages of Atlantic bluefin tuna (ABT, Thunnus thynnus) in larval rearing habitat of the Gulf of Mexico. Larvae and zooplankton were collected during two multi-day Lagrangian experiments during peak spawning in May 2017 and 2018. Larvae were categorized by flexion stage and standard length. We identified, enumerated and sized zooplankton from larval gut contents and in the ambient community. Ciliates were quantitatively important (up to 9%) in carbon-based diets of early larvae. As larvae grew, diet composition and prey selection shifted from small copepod nauplii and calanoid copepodites to larger podonid cladocerans, which accounted for up to 70% of ingested carbon. Even when cladoceran abundances were <0.2 m−3, they comprised 23% of postflexion stage diet. Feeding behaviors of larvae at different development stages were more specialized, and prey selection narrowed to appendicularians and primarily cladocerans when these taxa were more abundant. Our findings suggest that ABT larvae have the capacity to switch from passive selection, regulated by physical factors, to active selection of presumably energetically optimal prey.

Sign in / Sign up

Export Citation Format

Share Document