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Titolo:
Biomarkers indicate health problems in brown bullheads from the industrialized Schuylkill River, Philadelphia
Autore:
Steyermark, AC; Spotila, JR; Gillette, D; Isseroff, H;
Indirizzi:
Drexel Univ, Dept Biosci & Biotechnol, Philadelphia, PA 19104 USA Drexel Univ Philadelphia PA USA 19104 technol, Philadelphia, PA 19104 USA Rohm & Haas Res Labs, Spring House, PA 19477 USA Rohm & Haas Res Labs Spring House PA USA 19477 Spring House, PA 19477 USA SUNY Coll Buffalo, Dept Biol, Buffalo, NY 14222 USA SUNY Coll Buffalo Buffalo NY USA 14222 , Dept Biol, Buffalo, NY 14222 USA
Titolo Testata:
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
fascicolo: 2, volume: 128, anno: 1999,
pagine: 328 - 338
SICI:
0002-8487(199903)128:2<328:BIHPIB>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
ICTALURUS-NEBULOSUS; TUMOR FREQUENCIES; AQUATIC ORGANISMS; ENGLISH SOLE; FISH; CONTAMINANTS; POPULATIONS; TRIBUTARIES; PARASITES; SEDIMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Steyermark, AC Drexel Univ, Dept Biosci & Biotechnol, Philadelphia, PA 19104 USA Drexel Univ Philadelphia PA USA 19104 elphia, PA 19104 USA
Citazione:
A.C. Steyermark et al., "Biomarkers indicate health problems in brown bullheads from the industrialized Schuylkill River, Philadelphia", T AM FISH S, 128(2), 1999, pp. 328-338

Abstract

We used biomarkers to assess the health of two populations of brown bullheads Ameiurus nebulosus, one from an urban, industrialized section of the Schuylkill River (SR), Philadelphia, Pennsylvania, and the other from HopkinsPond (HP), in suburban New Jersey, which was not affected by industry. We evaluated health using histopathology, condition factor (K), hepatosomal index (HSI), prevalence of parasites, health assessment index (HAI), and population age structure. Sediment analysis revealed that both sites contained similar levels of polynuclear aromatic hydrocarbons (PAHs). Brown bullheadsfrom the SR were longer and heavier than brown bullheads from HP and exhibited more external lesions. There were no hepatic lesions in brown bullheads from either site. Condition factor was higher in SR fish, but due to length differences between the two populations, was not a reliable indicator ofgeneral health. Hepatosomal index was similar between both populations, although the presence of numerous cestodes in the visceral organs, including the liver, of HP brown bullheads confounded the interpretation of the HSI. The incidence of parasitism was significantly greater in HP fish than in SRfsh. The HAI was significantly greater in SR brown bullheads, indicating more organ abnormalities in SR fsh than in HP fish, including more abnormalities of the fins, barbels, and mouth. Population age structure was older for HP brown bullheads than for SR fish, indicating a shorter lifetime for SRbrown bullheads. Although PAH levels were similar between the two sites, SR brown bullheads were less healthy than HP brown bullheads, as indicated by several biomarkers. Histopathology, health assessment index, and population age structure were the most informative biomarkers.

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Documento generato il 30/10/20 alle ore 09:19:47