Semelparous whitefish Coregonus lavaretus: do they exist?
The life history of the whitefish Coregonus lavaretus population in the eutrophic Lake Temse, Southern Norway, was studied in 1985 and 1986. Growth was intermediate compared to other populations, whitefish attained 13 and 21 cm first and second winter, respectively. The population was dominated (91...
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| Format: | Article |
| Language: | English |
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Norwegian University of Science and Technology
1988-12-01
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| Series: | Fauna Norvegica |
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| Online Access: | https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6086 |
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| _version_ | 1850207934413275136 |
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| author | Jan Henning L'Abee-Lund Einar Kleven Dag Matzow Odd Terje Sandlund |
| author_facet | Jan Henning L'Abee-Lund Einar Kleven Dag Matzow Odd Terje Sandlund |
| author_sort | Jan Henning L'Abee-Lund |
| collection | DOAJ |
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The life history of the whitefish Coregonus lavaretus population in the eutrophic Lake Temse, Southern Norway, was studied in 1985 and 1986. Growth was intermediate compared to other populations, whitefish attained 13 and 21 cm first and second winter, respectively. The population was dominated (91%) by the age groups 0, 1 and 2. Oldest aged male and female whitefish were 6 and 4 years, respectively. Fishing pressure and emigration could not explain the observed age structure and age at sexual maturity, but evolution towards semelparity and optimal age at sexual maturity could. Restricted spawning areas are suggested as being the principal factor in the development of semelparity in the population of whitefish studied.
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| format | Article |
| id | doaj-art-ff8ad2f4df64482b881f33ed6dff4fac |
| institution | OA Journals |
| issn | 1502-4873 1891-5396 |
| language | English |
| publishDate | 1988-12-01 |
| publisher | Norwegian University of Science and Technology |
| record_format | Article |
| series | Fauna Norvegica |
| spelling | doaj-art-ff8ad2f4df64482b881f33ed6dff4fac2025-08-20T02:10:20ZengNorwegian University of Science and TechnologyFauna Norvegica1502-48731891-53961988-12-01910.5324/fn.v9i0.6086Semelparous whitefish Coregonus lavaretus: do they exist?Jan Henning L'Abee-Lund0Einar Kleven1Dag Matzow2Odd Terje Sandlund3Norwegian Institute for Nature Research, Tungasletta 2, NO-7004 TrondheimAust-Agder County Department of the Environment, Fylkeshuset, NO-4800 Arendal, NorwayAust-Agder County Department of the Environment, Fylkeshuset, NO-4800 Arendal, NorwayThe Royal Norwegian Society for Rural Development, P.O. Box 115, NO-2013 Skjetten, Norway The life history of the whitefish Coregonus lavaretus population in the eutrophic Lake Temse, Southern Norway, was studied in 1985 and 1986. Growth was intermediate compared to other populations, whitefish attained 13 and 21 cm first and second winter, respectively. The population was dominated (91%) by the age groups 0, 1 and 2. Oldest aged male and female whitefish were 6 and 4 years, respectively. Fishing pressure and emigration could not explain the observed age structure and age at sexual maturity, but evolution towards semelparity and optimal age at sexual maturity could. Restricted spawning areas are suggested as being the principal factor in the development of semelparity in the population of whitefish studied. https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6086ActinopterygiiSalmoniformesdemographypopulation dynamicSouthern Norway |
| spellingShingle | Jan Henning L'Abee-Lund Einar Kleven Dag Matzow Odd Terje Sandlund Semelparous whitefish Coregonus lavaretus: do they exist? Fauna Norvegica Actinopterygii Salmoniformes demography population dynamic Southern Norway |
| title | Semelparous whitefish Coregonus lavaretus: do they exist? |
| title_full | Semelparous whitefish Coregonus lavaretus: do they exist? |
| title_fullStr | Semelparous whitefish Coregonus lavaretus: do they exist? |
| title_full_unstemmed | Semelparous whitefish Coregonus lavaretus: do they exist? |
| title_short | Semelparous whitefish Coregonus lavaretus: do they exist? |
| title_sort | semelparous whitefish coregonus lavaretus do they exist |
| topic | Actinopterygii Salmoniformes demography population dynamic Southern Norway |
| url | https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6086 |
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