| Autor: |
Fechter, Andrea, Thistle, David, Arlt, Günter, Suderman, Keith, Vopel, Kay |
| Předmět: |
|
| Zdroj: |
Marine Ecology; Sep2004, Vol. 25 Issue 3, p217-223, 7p |
| Abstrakt: |
Harpacticoid copepod food is patchily distributed and individuals must episodically move to new food patches. Key questions in harpacticoid feeding ecology include how individuals detect food patches and how rapidly they move toward patches. Based on literature reports, we hypothesized that harpacticoids locate food parcels by sensing a water-borne cue. We tested this idea using individuals ofLeptastacus coulliHuys, 1992 andPraeleptomesochra similisLang, 1965 from a sandy beach in north Florida (29.948° N, 84.341° W). Individuals from both species selected seawater that had been exposed to food significantly more frequently than they selected control seawater. The rate of movement of these species was millimeters per second, which agreed with previous reports. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Plný text