Allometry of Herring Mortality

Publisher Website
Google Scholar
Abstract
I calculated the relationship between instantaneous natural mortality, M (d–1), and dry body weight, W (μg) for herring larvae and adults using data from the scientific literature. Geometric mean mortality of adult Pacific herring Clupea pallasi (0.52·year–1) was about three times greater than that of adult Atlantic herring Clupea harengus (0.18·year–1), which may reflect greater reproductive effort per unit size by Pacific herring than by Atlantic herring. Geometric mean mortality of Pacific herring larvae (0.083·d–1) was 30% greater than that of Atlantic herring larvae (0.064·d–1), but the difference was not significant. The functional regression for Atlantic herring was log e (M) = –0.4924 – 0.4064·log e (W), and the regression for Pacific herring was log e (M) = 0.1553 – 0.3935·log e (W). The regressions provide preliminary estimates of average M of herring eggs and juveniles, life history stages for which there are few direct estimates of mortality. They also indicate that the weight exponen...

This publication has 0 references indexed in Scilit: