On amphidromy, a distinct form of diadromy in aquatic organisms
| Autor: | Robert M. McDowall |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Larva
Ecology media_common.quotation_subject Sicyopterus lagocephalus Subtropics Management Monitoring Policy and Law Aquatic Science Biology Oceanography biology.organism_classification Crustacean Sicyopterus Temperate climate Reproduction Sicydiinae Ecology Evolution Behavior and Systematics media_common |
| Zdroj: | Fish and Fisheries. 8:1-13 |
| ISSN: | 1467-2979 1467-2960 |
| Popis: | Amphidromy is a distinctive form of diadromy that involves some fish, decapod crustaceans and gastropod molluscs. Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there. This life-history strategy is observed in numerous fish species, primarily in islands of the tropics and subtropics (probably more than 75 species, especially sicydiine gobies), and extends to temperate countries as far as Japan in the north and New Zealand in the south. There has been considerable confusion about the nature of amphidromy and its distinctiveness from anadromy, another category of diadromy. The return to freshwater of small juveniles of amphidromous fishes is functionally and strategically different from the return of large mature adults, as happens in anadromy. The strategy is recognized as distinctive by numerous fish biologists who work with amphidromous fishes, although it has tended to be rejected or ignored by others, typically those who have no personal experience with them. |
| Databáze: | OpenAIRE |
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