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Titolo:
RELATIONSHIPS BETWEEN MERCURY CONCENTRATIONS IN WALLEYE (STIZOSTEDION-VITREUM) AND NORTHERN PIKE (ESOX-LUCIUS) - IMPLICATIONS FOR MODELING AND BIOMONITORING
Autore:
PARKS JW; CRAIG PC; OZBURN GW;
Indirizzi:
ONTARIO MINIST ENVIRONM & ENERGY,435 JAMES ST S THUNDER BAY ON P7E 6E3 CANADA LAKEHEAD UNIV,DEPT BIOL THUNDER BAY ON P7B 5E1 CANADA DE MONTFORT UNIV,DEPT CHEM LEICESTER LE1 9BH LEICS ENGLAND DAMSA NOLALU ON P0T 2K0 CANADA
Titolo Testata:
Canadian journal of fisheries and aquatic sciences
fascicolo: 9, volume: 51, anno: 1994,
pagine: 2090 - 2104
SICI:
0706-652X(1994)51:9<2090:RBMCIW>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRECAMBRIAN SHIELD LAKES; BASS MICROPTERUS-DOLOMIEUI; ENGLISH RIVER SYSTEM; ONTARIO LAKES; YELLOW PERCH; SALVELINUS-NAMAYCUSH; FISH; ACCUMULATION; MANITOBA; CANADA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
71
Recensione:
Indirizzi per estratti:
Citazione:
J.W. Parks et al., "RELATIONSHIPS BETWEEN MERCURY CONCENTRATIONS IN WALLEYE (STIZOSTEDION-VITREUM) AND NORTHERN PIKE (ESOX-LUCIUS) - IMPLICATIONS FOR MODELING AND BIOMONITORING", Canadian journal of fisheries and aquatic sciences, 51(9), 1994, pp. 2090-2104

Abstract

Site-specific and interlake models are developed and tested for predicting mercury levels in walleye (Stizostedion vitreum) and northern pike (Esox lucius). The models are based on empirical relationships fromcoexisting fish in waters impacted by atmospheric loadings, contaminated sediments, and new reservoir formations. The sizes of fish used inthe model (39-cm walleye and 55-cm northern pike) are typical of those caught by sport and commercial fishermen. The relative importance ofa number of environmental factors to the accumulation of mercury in coexisting populations was examined by regression of the Biotic MercuryPartitioning Index (BMPI: mercury in species 1 (39-cm walleye)/mercury in species 2 (55-cm northern pike)) on pH, alkalinity, dissolved organic carbon, and other variables that have been identified as important to the accumulation of mercury in either or both species. No species-specific differences in mercury bioavailability were identified. We postulate that development of other biotic relationships on a site-specific, watershed, or broader geographic basis will assist in attempts to model mercury in aquatic ecosystems and reduce sample requirements for biomonitoring programs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 19:32:22