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- W1967454326 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 424:169-174 (2011) - DOI: https://doi.org/10.3354/meps08967 Life history of fjord cod from the Skagerrak in the mid-2000s compared to 1905 Marthe Bråthen Lund1, Esben Moland Olsen1,2, Sigurd Heiberg Espeland2, Nils Chr. Stenseth1,2,* 1Centre for Ecological and Evolutionary Synthesis, Department of Biology, University of Oslo, PO Box 1066 Blindern, 0316 Oslo, Norway 2Institute of Marine Research, Flødevigen Marine Research Station, 4817 His, Norway *Corresponding author. Email: n.c.stenseth@bio.uio.no ABSTRACT: Life history changes serve as stress indicators in harvested populations. Data from recent decades show that many species of marine fish are now maturing at younger ages and smaller sizes, associated with a general increase in harvest intensity. However, data from earlier times are generally sparse or lacking. In this study we compare present life history characteristics of fjord cod Gadus morhua in the Skagerrak, southern Norway, to century-old (1905) scientific data. Contrary to our expectations, age and length distributions were shifted towards older and larger fish in the most recent data set compared to the historic sample. Also, fish in the historic sample tended to be smaller at age and reached 50% maturity at a smaller size and younger age compared to the present sample. These results are in contrast to most other studies on life history changes in harvested fish. KEY WORDS: Age-structure · Atlantic cod · Fjord · Harvesting · Life history · Size-structure Full text in pdf format PreviousNextCite this article as: Lund MB, Olsen EM, Espeland SH, Stenseth NC (2011) Life history of fjord cod from the Skagerrak in the mid-2000s compared to 1905. Mar Ecol Prog Ser 424:169-174. https://doi.org/10.3354/meps08967 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 424. Online publication date: March 01, 2011 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2011 Inter-Research." @default.
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- W1967454326 title "Life history of fjord cod from the Skagerrak in the mid-2000s compared to 1905" @default.
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