Results 191 to 200 of about 1,702 (217)

Observations on the Behavior of Skipjack Tuna, Euthynnus pelamis, in Captivity

Copeia, 1962
Maintenance of skipjack tuna, Euthynnus pelamis, in captivity for periods up to 51/2 months enabled various behavioral observations to be made. Food consumption per pound of skipjack per day when fed to satiation every hour was twice that when fed to satiation once a day. Passage of shrimp exoskeleton through the digestive tract took l1/2 hours.
openaire   +1 more source

Phalanx Orientation in Feeding Behavior of the Little Tuna, Euthynnus alletteratus

Transactions of the American Fisheries Society, 1967
Abstract In September 1964 observations on the feeding behavior of little tuna (Euthynnus alletteratus) were made at Cannouan Island, Grenadine Islands, Lesser Antilles. The observations took place at night during a night-light station in shallow water.
Harvey R. Bullis, Rolf Juhl
openaire   +1 more source

Properties of Phospholipase A1/Transacylase in the White Muscle of Bonito Euthynnus pelamis (Linnaeus)

Journal of Biochemistry, 1997
The properties of phospholipase A1 (PLA1) obtained from the white muscle of bonito, Euthynnus pelamis (Linnaeus), were examined. The PLA1 activity had a pH optimum from 6.5 to 7.0 for phosphatidylcholine (PC), and calcium ion was not required. The optimum temperature was from 20 to 30 degrees C. When a fatty alcohol was used as an acceptor, a wax ester
K, Hirano, A, Tanaka, K, Yoshizumi, T, Tanaka, K, Satouchi   +4 more
openaire   +2 more sources

Visual Acuity of Two Tunas, Katsuwonus pelamis and Euthynnus affinis

Copeia, 1968
Two tunas, Katsuwonus pelamis and Euthynnus affinis, were trained to discriminate between vertically and horizontally striped images. The striped images were projected on a plate of opal glass which rested against a window of the experimental tank. Visual acuity depended upon the width of the stripes and the distance between the fish and the window at ...
openaire   +1 more source

Hg, As, Cr, Sn, Ni, and Se concentrations in the muscle of little tunny (Euthynnus alletteratus) from the western Algerian stock

Biological Trace Element Research, 2021
Mohammed Amine Ansel
exaly  

Comparison of digestive, immune and antioxidant enzyme activities of mackerel tuna (Euthynnus affinis) in the wild and under captivity

Journal of Applied Animal Research, 2020
Shengjie Zhou, Jian G Qin
exaly  

Population genetics meets phylogenetics: new insights into the relationships among members of the genus Euthynnus (family Scombridae)

Hydrobiologia, 2021
Thuy Yen Duong, Pedro G Lino, Ruben Muñoz-Lechuga   +2 more
exaly  

Coloration of the Scombrid Fish Euthynnus affinis (Cantor)

Copeia, 1965
Eugene L. Nakamura, John J. Magnuson
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Ultrastructure of Thunnus thynnus and Euthynnus alletteratus spermatozoa

Journal of Fish Biology, 2002
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Ultrastructure of Thunnus thynnus and Euthynnus allettevatus spermatozoa

Journal of Fish Biology, 2002
FRANCISCO J Abascal, Antonio Medina
exaly