Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).

Average age and maximum life span of breeding adult three-spined sticklebacks (Gasterosteus aculeatus) were determined in eight Fennoscandian localities with the aid of skeletochronology. The average age varied from 1.8 to 3.6 years, and maximum life span from three to six years depending on the loc...

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Autores principales:	Jacquelin DeFaveri, Juha Merilä
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4c2281992eae42d8999acc21b50e68d1
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spelling	oai:doaj.org-article:4c2281992eae42d8999acc21b50e68d12021-11-18T08:45:45ZVariation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).1932-620310.1371/journal.pone.0080866https://doaj.org/article/4c2281992eae42d8999acc21b50e68d12013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24260496/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Average age and maximum life span of breeding adult three-spined sticklebacks (Gasterosteus aculeatus) were determined in eight Fennoscandian localities with the aid of skeletochronology. The average age varied from 1.8 to 3.6 years, and maximum life span from three to six years depending on the locality. On average, fish from marine populations were significantly older than those from freshwater populations, but variation within habitat types was large. We also found significant differences in mean body size among different habitat types and populations, but only the population differences remained significant after accounting for variation due to age effects. These results show that generation length and longevity in three-spined sticklebacks can vary significantly from one locality to another, and that population differences in mean body size cannot be explained as a simple consequence of differences in population age structure. We also describe a nanistic population from northern Finland exhibiting long life span and small body size.Jacquelin DeFaveriJuha MeriläPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e80866 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jacquelin DeFaveri Juha Merilä Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
description	Average age and maximum life span of breeding adult three-spined sticklebacks (Gasterosteus aculeatus) were determined in eight Fennoscandian localities with the aid of skeletochronology. The average age varied from 1.8 to 3.6 years, and maximum life span from three to six years depending on the locality. On average, fish from marine populations were significantly older than those from freshwater populations, but variation within habitat types was large. We also found significant differences in mean body size among different habitat types and populations, but only the population differences remained significant after accounting for variation due to age effects. These results show that generation length and longevity in three-spined sticklebacks can vary significantly from one locality to another, and that population differences in mean body size cannot be explained as a simple consequence of differences in population age structure. We also describe a nanistic population from northern Finland exhibiting long life span and small body size.
format	article
author	Jacquelin DeFaveri Juha Merilä
author_facet	Jacquelin DeFaveri Juha Merilä
author_sort	Jacquelin DeFaveri
title	Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
title_short	Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
title_full	Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
title_fullStr	Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
title_full_unstemmed	Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).
title_sort	variation in age and size in fennoscandian three-spined sticklebacks (gasterosteus aculeatus).
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/4c2281992eae42d8999acc21b50e68d1
work_keys_str_mv	AT jacquelindefaveri variationinageandsizeinfennoscandianthreespinedsticklebacksgasterosteusaculeatus AT juhamerila variationinageandsizeinfennoscandianthreespinedsticklebacksgasterosteusaculeatus
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Variation in age and size in Fennoscandian three-spined sticklebacks (Gasterosteus aculeatus).

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