Yields of European perch from Upper Lake Constance from 1910 to present

Eckmann, Reiner; Gerster, Stefan; Kraemer, A.

Yields of European perch from Upper Lake Constance from 1910 to present

Dateien

Eckmann_etal_FME2006.pdfGröße: 307 KBDownloads: 320

Datum

2006

Autor:innen

Eckmann, Reiner

Gerster, Stefan

Kraemer, A.

URI (zitierfähiger Link)

http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-38708

Link zur Lizenz

Attribution-NonCommercial-NoDerivs 2.0 Generic

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Fisheries Management and Ecology. 2006, 13(6), pp. 381-390. ISSN 0969-997X. eISSN 1365-2400

Zusammenfassung

Commercial yields of perch, Perca fluviatilis (L.), from Upper Lake Constance changed markedly during the 20th century. The perch boom in the 1950s and 1960s is attributed to higher fishing intensity and lake eutrophication. Decreasing yields in recent decades are mainly because of slower growth of perch, while a gradual decrease in year-class strength, and an overall reduction of fishing intensity, might also have contributed to yield reduction. Slower growth is mainly attributed to lake re-oligotrophication and infestation of perch with the pike tapeworm Triaenophorus nodulosus (Pallas). Competition for food with non-native ruffe, Gymnocephalus cernua(L.) is likely of minor importance, while the invasion of the lake by alien macrozoobenthos species has the potential to reduce the food supply for benthivorous perch. Perch yields are assumed to remain at the low level attained at the beginning of the 21st century; however, under changing climate conditions, fluctuations around the long-term mean will probably be wider than in the past.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

diet, eutrophication, ruffe, Triaenophorus nodulosus, year-class strength

Zitieren

ISO 690

ECKMANN, Reiner, Stefan GERSTER, A. KRAEMER, 2006. Yields of European perch from Upper Lake Constance from 1910 to present. In: Fisheries Management and Ecology. 2006, 13(6), pp. 381-390. ISSN 0969-997X. eISSN 1365-2400

BibTex

@article{Eckmann2006Yield-7453,
  year={2006},
  title={Yields of European perch from Upper Lake Constance from 1910 to present},
  number={6},
  volume={13},
  issn={0969-997X},
  journal={Fisheries Management and Ecology},
  pages={381--390},
  author={Eckmann, Reiner and Gerster, Stefan and Kraemer, A.}
}

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Universitätsbibliographie

Ja