Estimated biomass and spawning biomass (femailes that are at least 3 years old) of bigeye tuna in the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Estimates of overall average weights of yellowfin tuna in the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Estimated average weights of bigeye tuna caught by the fisheries of the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Multispecies virtual population analysis (MSVPA) model for the Bering Sea, includes predation interactions among several commercially important groundfish stocks, and also predation by arrowtooth flounder and northern fur seal on these stocks. The modeled region is the eastern Bering Sea shelf and slope north to about 61N. Model inputs are fisheries, predator biomass, and food habits data. The model requires estimates of other food abundance supplied by species outside the model. The model outputs age-structured population dynamics for key species numbers at age. [ Reference: Livingston, P.A. and Jurado-Molina J. 2000. A multispecies virtual population analysis of the eastern Bering Sea. ICES Journal of Marine Science 57: 294-299. ] [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Oceanographic surveys have been conducted at 175 stations (22 lines) in the East China Sea since 1995. Data collected 4 times a year include fish larvae and eggs, temperature, salinity, DO, zooplankton, nutrients, Chl-a, and currents. Data obtained from the surveys have been published as "Annual report of oceanographic observations" and are available through the Korean Oceanographic Data Center (KODC). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Estimated biomanss and spawning biomass of yellowfin tuna in the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Bluefin Catch, effort, and catch-per-unit of effort data for the surface fishery in the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Estimated recruitment of bigeye tuna to the fisheries of the eastern Pacific Ocean (EPO). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

It is assumed the yellowfin tuna can be recruited to the fishable population during every quarter of the year. Therefore, there are four estimates of recruitment for each year. Estimates of recruitment of yellowfin tuna (Thunnus albacares) are scaled so that average recruitment is equal to 1.0, which is 39,257,074 fish per quarter. The most-recent stock assessment of yellowfin makes no strong assumptions about the relationship between adult biomass (or abundance) and recruitment. The recruitment of yellowfin tuna to the fisheries in the eastern Pacific Ocean is variable, and appears to be related to sea-surface temperatures (SSTs). [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]

Skipjack tuna are fished in the Eastern Pacific Ocean (EPO) by purse seiners (in schools associated with floating objects and in unassociated schools) and by baitboats. Most of the catches are made between northern Baja California and southern Peru, but the catches are relatively low off southern Mexico. The fishery extends westward to about 140° W in equatorial waters. Skipjack tagged in the EPO have been recaptured in the central and western Pacific Ocean, but no skipjack tagged in the central or western Pacific Ocean have been recaptured in the EPO. [ Reference: PICES Scientific Report No. 18 2001, Proceedings of the PICES/CoML/IPRC Workshop on "Impact of Climate Variability on Observation and Prediction of Ecosystem and Biodiversity Changes in the North Pacific", http://www.pices.int/publications/scientific_reports/Report18/default.aspx. ]