[32.] Gallardo J, Perez-Martin R, Franco J, Aubourg S and C Sotelo Changes in volatile bases and trimethylamine oxide during the canning of albacore (Thunnus alalunga
Mercury content in Pacific troll-caught albacore tuna (Thunnus alalunga
Using multi-sensor satellite remote sensing and catch data to detect ocean hot spots for albacore (Thunnus alalunga
) in the northwestern North Pacific.
Using hook depth as a tool to selectively target pelagic species has been used extensively in commercial fisheries for decades, with most of the effort focused on bigeye tuna, Thunnus obesus, and albacore, Thunnus alalunga
, (Suzuki et ah, 1977; Sakagawa et ah, 1987).
For example, GSI of Thunnus alalunga
peaks in April (Grau et al., 2009), and that of Sciaena umbra peaks in May and June (Chen et al., 2010).
However, the statistical comparison did not allow to reject the hypothesis of lack of depth effect (Kruskal Wallis p>.05), and demonstrated a homogeneous distribution of yellowfin tuna (Thunnus albacares), albacore (Thunnus alalunga
), bigeye tuna (Thunnus obesus), sailfish (Istiophorus albicans), white marlin (Tetrapturus albidus) and blue marlin (Makaira nigricans) in the water column.
A traves de esta metodologia han sido estudiados diferentes productos acuicolas tales como: "hoki" (Macruronus novaezelandiae) [17, 18], trucha arcoiris (Oncorhynchus mykiss) , pargo (Pagrus auratus) , atun (Thunnus alalunga
), (Thunnus albacores) [16, 23], salmon (Salmo salar)  y platija (Parallchthys olivaceeus) [8, 9].
The ETBF is a pelagic longline fishery with a quota on species that include albacore (Thunnus alalunga
), yellowfin tuna (T.
Specifically, Yokawa and Uozumi (2001) and Uozumi (2003) suggested that the operational switch from targeting mainly surface-associated albacore, Thunnus alalunga
, and yellowfin tuna, Thunnus albacares, to targeting mainly the deeper-dwelling bigeye tuna, Thunnus obesus, has meant: 1) the gear only covered the lower limits of the blue marlin's depth distribution, and 2) shifting of fishing effort to focus on eastern Atlantic waters has amounted to movement away from preferred blue marlin habitats.
High catch rates of Albacore (Thunnus alalunga
) in the southwest Pacific Ocean were found to correspond with high negative Southern Oscillation Index values during strong El Nino events (Briand et al., 2011).
51 1.3 Albacore tuna Thunnus alalunga
50 1.3 Wahoo Acantocybium sp.
Thompson focused his investigations initially on the albacore tuna, Thunnus alalunga
, and then on the Pacific sardine, Sardinops sagax, as the commercial harvest of this latter species began to increase (Dunn, 2001b).