,:From its start nearly 60 years ago the California tuna fishery has ',own into the state's largest fishery, both in val)le and in pounds "nded (Power, 1960). Yellowfin tuna (Neothunnus macropterus) and ~, ,'pjack (][atwwonus pelarnis) now are the two most important species , nd comprise the bulk of the California tuna landings. These are topical tunas and seldom enter California waters in comm...

Each tuna species appeared to have its unique price depending on landing, season, and nutritional value, hence, adulteration could occur by replacing tunas of high quality those having low quality. This study was undertaken explore the potential mid infrared (MIR) spectroscopy for discriminating canned containing different species: yellowfin, skipjack, bigeye, albacore. A total 218 tunas, produ...

A Spatial Ecosystem and Population Dynamic Model (SEAPODYM) is used in a data assimilation study aiming to estimate model parameters that describe dynamics of Pacific skipjack tuna population on ocean-based scale. The model based on advection–diffusion–reaction equations explicitly predicts spatial dynamics of large pelagic predators, while taking into account data on several mid-trophic level ...

Urgent measures to save falling stocks of tuna in the world's second biggest tuna fishery — the eastern Pacific— have failed to be implemented, according to several environmental groups. Closure of the fishery, both by area and by time, was demanded by the groups to protect rapidly decreasing Pacific populations of yellowfin and bigeye tuna. But the annual meeting of the Inter American Tropical...