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Titolo:
DISSOLVED-OXYGEN AND FISH DISTRIBUTION IN A FLORIDA SPRING
Autore:
MCKINSEY DM; CHAPMAN LJ;
Indirizzi:
UNIV FLORIDA,DEPT ZOOL GAINESVILLE FL 32611 UNIV FLORIDA,DEPT ZOOL GAINESVILLE FL 32611
Titolo Testata:
Environmental biology of fishes
fascicolo: 2, volume: 53, anno: 1998,
pagine: 211 - 223
SICI:
0378-1909(1998)53:2<211:DAFDIA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
AQUATIC SURFACE RESPIRATION; POECILIA-RETICULATA; XIPHOPHORUS-VARIATUS; GAMBUSIA-AFFINIS; SOCIAL-CONTROL; HYPOXIA; BEHAVIOR; PISCES; SIZE; MOSQUITOFISH;
Keywords:
ARTESIAN SPRING; POECILIIDAE; RESPIRATORY ECOLOGY; HYPOXIA; FISH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
54
Recensione:
Indirizzi per estratti:
Citazione:
D.M. Mckinsey e L.J. Chapman, "DISSOLVED-OXYGEN AND FISH DISTRIBUTION IN A FLORIDA SPRING", Environmental biology of fishes, 53(2), 1998, pp. 211-223

Abstract

This study examined the distribution and relative abundance of fishesalong a dissolved oxygen gradient in Singing Springs, Florida. Over the 1-year study, dissolved oxygen concentration in the spring exhibited a strong gradient ranging from an average of 0.20 mg l(-1) at the boil to 1.81 mg l(-1) 110 meters downstream. Season al variation in dissolved oxygen was very low relative to the spatial variation along the spring gradient. Fish community composition was evaluated monthly at the boil of the spring, 45 m downstream just after the confluence of the spring and the main river, and 110 m downstream. The fish community in the spring was characterized by species generally considered to be tolerant of low oxygen. Gambusia holbrooki was the most abundant species at all sites comprising an average of 88.1% of the fish captured atthe boil, 63.2% of the fish captured at 45 m, and 74.8% of the fish captured at 110 m downstream. The diversity of fishes (G. holbrooki, Heterandria formosa, Notropis harperi, Lucania goodei, and Poecilia latipinna) increased with distance from the boil. Although there were someseasonal differences in patterns of diversity and community structure, the inter-site differences were much more apparent throughout the study. II is likely that the pattern of variation in dissolved oxygen interacts with the respiratory abilities of the fishes to affect the distribution pattern and community composition along the gradient.

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Documento generato il 04/04/20 alle ore 08:30:04