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- Sardine Egg Distribution Maps And Biomass Surveys
- Sardine Egg Distribution Maps from April CalCOFI cruises
- Spawning biomass of Pacific sardine (Sardinops sagax) off California in 2003 PDF
- Summary: The daily egg production of Pacific sardine (Sardinops sagax) off California from San Diego to Morro Bay was estimated to be1.52/0.05m2 (CV = 0.18) and the spawning biomass was estimated to be 485,121 mt (CV=0.36) for an area of 365,906 km2, using the daily specific fecundity (number of eggs/population weight
(gm)/day: 22.94 from the 2002 cruise (compared to 23.55 used in the years prior to 2002). The area is slightly larger than 325,082 km2 estimated in 2002. The estimates of spawning biomass of Pacific sardine in 1994 and 1996 - 2003 are 127,000 mt, 83,000 mt, 410,000 mt, 314,000 mt, 282,000 mt, 1.06 million mt, 791,000 mt, 206,000 mt, and 485,000 mt respectively. Therefore, the estimates of spawning biomass have been fluctuated since 1994.
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