What Limits Clupeoid Production
| Autor: | Reuben Lasker |
|---|---|
| Rok vydání: | 1985 |
| Předmět: | |
| Zdroj: | Canadian Journal of Fisheries and Aquatic Sciences. 42:s31-s38 |
| ISSN: | 1205-7533 0706-652X |
| DOI: | 10.1139/f85-260 |
| Popis: | This review paper explores a number of hypotheses on the control of clupeoid populations. The following are discussed: the effect of fishing; egg mortality (predation); larval mortality (the critical period) with a consideration of starvation and predation and the biotic and abiotic factors that may be involved; larval transport and the oceanographic features that cause it; variable egg production; interspecific competition; and the effect of localized (e.g. storms and upwellings) and widespread (El Niño) oceanographic events. A review of the paleosedimentary record is also given showing the magnitude of natural fluctuations when no fishing occurred. Recent resurgences in clupeoid populations are reviewed and suggested causes are analyzed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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