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The Influence of Ontogeny on Resource Utilization And Contaminant Dynamics in Three Fishes with Different Foraging Strategies
Başlık:
The Influence of Ontogeny on Resource Utilization And Contaminant Dynamics in Three Fishes with Different Foraging Strategies
Yazar:
Heuvel, Cecilia E., author.
ISBN:
9780438000971
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (100 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Aaron T. Fisk; G. Douglas Haffner Committee members: Jan Ciborowski; Scott Mundle; Yingming Zhao.
Özet:
Ontogeny has the potential to influence the resource utilisation and contaminant dynamics of freshwater fishes but this has rarely been compared among species with different foraging strategies. Here, stable isotopes (delta 13C, delta15N, and delta34S), and PCBs (IUPAC #: 153, 138, and 180) were used to investigate differences in resource utilisation and contaminant accumulation across ontogeny among three fishes with different foraging strategies (Benthivore: freshwater drum, Aplodinotus grunniens; Piscivore: walleye, Sander vitreus; and Omnivore: white perch, Morone americana) in Lake Erie's western basin. All three species had distinct patterns of resource utilisation and contaminant accumulation with size (ontogeny) as indicated by their PCB concentrations and stable isotope values. This suggests that ontogeny plays an important role in trophic dynamics of freshwater ecosystems, and that a species functional role should not be categorized by their adult life stage.
Notlar:
School code: 0115
Konu Başlığı:
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(693972.1) | 693972-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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