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Titolo:
Heterotrophic bacteria community and pollution indicators of mussel - farmimpact in the Gulf of Gaeta (Tyrrhenian Sea)
Autore:
La Rosa, T; Mirto, S; Marino, A; Alonzo, V; Maugeri, TL; Mazzola, A;
Indirizzi:
Univ Palermo, Dept Anim Biol, I-90123 Palermo, Italy Univ Palermo Palermo Italy I-90123 ept Anim Biol, I-90123 Palermo, Italy Univ Messina, Dept Pharmacobiol, I-98168 Messina, Italy Univ Messina Messina Italy I-98168 Pharmacobiol, I-98168 Messina, Italy Univ Messina, Dept Anim Biol & Marine Ecol, I-98166 Messina, Italy Univ Messina Messina Italy I-98166 & Marine Ecol, I-98166 Messina, Italy
Titolo Testata:
MARINE ENVIRONMENTAL RESEARCH
fascicolo: 4, volume: 52, anno: 2001,
pagine: 301 - 321
SICI:
0141-1136(200110)52:4<301:HBCAPI>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
VIBRIO-PARAHAEMOLYTICUS; MARINE-ENVIRONMENT; ORGANIC-MATTER; CHESAPEAKE BAY; CULTURE; FISH; SEDIMENTS; WATERS; AQUACULTURE; SUCCESSION;
Keywords:
mussel farm impact; pollution-indicator bacteria; presumptive halophilic vibrios; Mediterranean Sea;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: La Rosa, T Univ Palermo, Dept Anim Biol, Via Archirafi 18, I-90123 Palermo, Italy Univ Palermo Via Archirafi 18 Palermo Italy I-90123 rmo, Italy
Citazione:
T. La Rosa et al., "Heterotrophic bacteria community and pollution indicators of mussel - farmimpact in the Gulf of Gaeta (Tyrrhenian Sea)", MAR ENV RES, 52(4), 2001, pp. 301-321

Abstract

Field studies were carried out to determine and compare the impact of organic loads due to the biodeposition of a mussel farm on the water quality and sediment in a coastal area of the Tyrrhenian Sea (Western Mediterranean). A total of five environmental and five microbial parameters were examined from March, 1997 to February, 1998 on a monthly basis at three stations: the first was located under the mussel farm, the second located at about 40 maway from the mussel farm, while the third designed as a control was at about 1-km. No clear changes in the physical characteristics of the water masses were observed, comparing the three sampling sites and the water column generally showed homogeneous conditions (in terms of temperature and salinity). Changes in density of aerobic heterotrophic bacteria, Escherichia coliand Enterococci in the water column are apparently independent from changes in environmental parameters. At all stations a constant significant correlation between temperature and presumptive Vibrio parahaemolyticus was reported suggesting that this abiotic factor exerted a major control on this bacterial group and its distribution in the water column is not related to the biodeposition of the mussel farm. The major impact identified was on the sediment where variations in bacterial abundance was observed. In the Mussel station sediment enrichment of organic compounds, and the consequent modification of the characteristics of the benthic environment, determined an increase in aerobic heterotrophic bacteria, and particularly of vibrios density (on average about 60%), suggesting that these bacteria are good indicators of organic enrichment. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 11:33:06