Behaviour of yellowfin (Thunnus albacares) and bigeye tuna (T. obesus)

A triangular fin with variable fin base thickness is analyzed and optimized using a two-dimensional analytical method. The influence of fin base height and fin base thickness on the temperature in the fin is listed. For the fixed fin volumes, the maximum heat loss, the corresponding optimum fin effectiveness, fin base height and fin tip length as a function of the fin base thickness, convection...

Health of two farmed species of tuna was evaluated in farm surveys in Australia, Croatia and Spain. The results were discussed at tuna health workshop during EAFP 12th International Conference. While a wide range of parasites was found, few problems occurred during the surveys. The information obtained will be useful for future monitoring and research on health of farmed tuna. Introduction Fish...

To analyze the effects of mesoscale eddies, sea surface temperature (SST), and gear configuration on the catch of Atlantic bluefin (Thunnus thynnus), yellowfin (Thunnus albacares), and bigeye tuna (Thunnus obesus) and swordfish (Xiphias gladius) in the U.S. northwest Atlantic longline fishery, we constructed multivariate statistical models relating these variables to the catch of the four speci...

The orange-red spectrum of  the skin of  electric yellow (Labidochromis caeruleus) is  one  of  the  idealistic and  necessary  schemas sought  by  aquarists  and commercial producers. In this study, the effect of live foods meal on the skin coloration of juvenile electric yellow was examined. 270 fish with an average living body weight was 0.42 ± 0.11 g, and average total length was 3...

CONTENTS CLIOTOP/PFRP Workshop: The Role of Squid in Pelagic Marine Ecosystems ............................... 2 Papua New Guinea Tuna-Tagging Project ................. 5 Upcoming Events .................................................. 5 Erratum ................................................................ 7 Pelagic Fisheries Science in the Pacific, 2005 and Beyond—PIFSC and PFRP ............

Within the tropical and subtropical oceans, tuna forage opportunistically on a wide variety of prey. However, little is known about the trophic ecology of the smallest size classes which play an important role in stock assessments and fisheries management. The foraging behavior of yellowfin tuna, Thunnus albacares (23.5–154.0 cm FL), collected from nearshore Fish Aggregating Devices (FADs) arou...