Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
The conservation of unionid mussels in Louisiana rivers: diversity, assemblage composition and substrate use
Autore:
Brown, KM; Banks, PD;
Indirizzi:
Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA Louisiana State Univ Baton Rouge LA USA 70803 , Baton Rouge, LA 70803 USA
Titolo Testata:
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
fascicolo: 3, volume: 11, anno: 2001,
pagine: 189 - 198
SICI:
1052-7613(200105/06)11:3<189:TCOUMI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRESH-WATER MUSSELS; MICROHABITAT USE; BIVALVIA; HABITAT;
Keywords:
distributions; diversity; Louisiana rivers; substrate use; unionid mussels;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Brown, KM Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA Louisiana State Univ Baton Rouge LA USA 70803 uge, LA 70803 USA
Citazione:
K.M. Brown e P.D. Banks, "The conservation of unionid mussels in Louisiana rivers: diversity, assemblage composition and substrate use", AQUAT CONS, 11(3), 2001, pp. 189-198

Abstract

1. To aid in their conservation, unionid mussel assemblages were surveyed in three relatively unstudied rivers in south-eastern Louisiana.2. Although total species richness varied among rivers, species diversity (as estimated both by Shannon-Weaver H ' and rank-abundance curves) was fairly similar.3. Assemblage composition varied among the rivers, with the Vilest Pearl River having the most dissimilar group of species. The endangered inflated heel splitter, Potamilus inflatus, was found only in the lower Amite River.4. The most common species had size distributions skewed towards larger individuals, but small individuals were collected (including the inflated heel splitter), indicating successful recruitment.5. Mussels were more common in silt than in sand or gravel, perhaps because fine sediments are more stable through time in these river systems.6. The greatest threat to these assemblages is gravel mining in the upper reaches of the rivers. At the present time only rivers with endangered species, or that have been declared scenic rivers, have any protection from gravel mining. Copyright (C) 2001 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/04/20 alle ore 22:54:56