Aquacultural effluents: Directive signals to the system downstream?

Citation
Rh. Kamps et Wh. Neill, Aquacultural effluents: Directive signals to the system downstream?, J CHEM ECOL, 25(9), 1999, pp. 2041-2050
Citations number
44
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF CHEMICAL ECOLOGY
ISSN journal
0098-0331 → ACNP
Volume
25
Issue
9
Year of publication
1999
Pages
2041 - 2050
Database
ISI
SICI code
0098-0331(199909)25:9<2041:AEDSTT>2.0.ZU;2-Z
Abstract
Animals continuously release biogenic substances that vary in composition w ith physiological state. In aquatic systems, animals can gain insight about conditions or events upstream and alter their physiology and behavior to e xploit this information. Here, we review observations on aquatic animals as diverse as snails, shrimp, fish, and frog tadpoles to probe the possibilit y that high-density aquaculture might generate chemical messages that cause conspecific or related individuals to reduce productive processes (growth, metamorphosis, ecdysis, reproduction) or even to sicken and die (loss of i mmunocompetence, anaphylaxis). The potential for ecological disruption logi cally is maximized under conditions that uncouple the parts of the system g enerating and receiving such signals-as would be the case when aquacultural effluents enter natural aquatic systems.