Results 101 to 110 of about 12,050 (221)

Measures of tuna abundance from purse-seine operations in the Eastern Pacific Ocean, adjusted for fleet-wide evolution of increased fishing power, 1960-1971 [PDF]

open access: yes, 1975
ENGLISH: The fishing power of the tuna purse-seine fleet of the eastern Pacific Ocean has increased since the early 1960's. Because the entire fleet seems to have adopted equipment and techniques to increase its efficiency in capturing tunas, traditional
Pella, Jerome J.   +1 more
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Influence of Swimming Speed on Metabolic Rates of Juvenile Pacific Bluefin Tuna and Yellowfin Tuna

open access: yesPhysiological and Biochemical Zoology, 2007
Bluefin tuna are endothermic and have higher temperatures, heart rates, and cardiac outputs than tropical tuna. We hypothesized that the increased cardiovascular capacity to deliver oxygen in bluefin may be associated with the evolution of higher metabolic rates.
Blank, Jason M.   +4 more
openaire   +4 more sources

An evaluation of geographic and annual variation in morphometric characters and gill-raker counts of yellowfin tuna, Thunnus albacares, from the Pacific Ocean [PDF]

open access: yes, 1992
ENGLISH: Samples of yellowfin tuna, Thunnus albacares, collected from five areas of the Pacific Ocean (Mexico, Ecuador, Australia, Japan, and Hawaii) between January and May of 1988 and 1990 were examined for spatiotemporal variation in morphometric ...
Schaefer, Kurt M.
core  

Consequences of ocean scale hypoxia constrained habitat for tropical pelagic fishes [PDF]

open access: yes, 2007
Large areas of cold hypoxic water occur as distinct strata in the eastern tropical Pacific and Atlantic oceans as a result of high productivity initiated by intense nutrient upwelling.
Goodyear, C.P., Prince, Eric D.
core   +2 more sources

An indexed bibliography of papers on tagging of tunas and billfishes [PDF]

open access: yes, 1993
Two working parties, the Working Party on Tuna Tagging in the Pacific and Indian Oceans and the Working Party on Tuna Tagging in the Atlantic and Adjacent Seas, were formed by the Food and Agriculture Organization (FAD) of the United Nations in 1966 ...

core  

Properties of protease and lipase from whole and individual organ of viscera from three tuna species [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2008
Properties of visceral enzymes from yellowfin tuna (Thunnus albacares), skipjack tuna (Katsuwonus pelamis) and tonggol tuna (Thunnus albacares) were studied.
Thiraratana Prachumratana   +1 more
doaj  

Differences in Dolphin Mortality Rates in Night and Day Sets for the U.S. Eastern Tropical Pacific Tuna Purse Seine Fishery [PDF]

open access: yes, 1992
Because dolphins sometimes travel with yellowfin tuna, Thunnus albacares, in the eastern tropical Pacific (ETP), purse seiners use the dolphins to locate and capture tuna schools.
Coan, Jr. , Atilio L.   +2 more
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The Use of the GWPCA-MGWR Model for Studying Spatial Relationships between Environmental Variables and Longline Catches of Yellowfin Tunas

open access: yesJournal of Marine Science and Engineering
The yellowfin tuna represents a significant fishery resource in the Pacific Ocean. Its resource endowment status and spatial variation mechanisms are intricately influenced by marine environments, particularly under varying climate events.
Menghao Li   +4 more
doaj   +1 more source

Report of the Inter-American Tropical Tuna Commission for the year 2008 [PDF]

open access: yes, 2010
ENGLISH: The Inter-American Tropical Tuna Commission (IATTC) operates under the authority and direction of a convention originally entered into by Costa Rica and the United States. The convention, which came into force in 1950, is open to adherence by

core  

Seasonal hand line fishery for yellowfin tuna at Colachel [PDF]

open access: yes, 2017
In Tamil Nadu, the oceanic tunas like skipjack and yellowfin tuna are exploited mainly by multiday drift gill netters. However, in Colachel, Kanyakumari, there is a seasonal fishery targeting yellowfin tuna of medium size weighing around 30 kg, with
Margaret Muthu Rathinam, A   +3 more
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