A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Indications of polymorphism in the behaviour and morphology of burbot (Lota lota) in a European lake (2022)
Marjomäki, T. J., Mustajärvi, L., Mänttäri, J., Kiljunen, M., & Karjalainen, J. (2022). Indications of polymorphism in the behaviour and morphology of burbot (Lota lota) in a European lake. Hydrobiologia, 849(8), 1839-1853. https://doi.org/10.1007/s10750-022-04830-y
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Marjomäki, Timo J.; Mustajärvi, Linda; Mänttäri, Jesse; Kiljunen, Mikko; Karjalainen, Juha
Lehti tai sarja: Hydrobiologia
ISSN: 0018-8158
eISSN: 1573-5117
Julkaisuvuosi: 2022
Ilmestymispäivä: 18.03.2022
Volyymi: 849
Lehden numero: 8
Artikkelin sivunumerot: 1839-1853
Kustantaja: Springer
Julkaisumaa: Alankomaat
Julkaisun kieli: englanti
DOI: https://doi.org/10.1007/s10750-022-04830-y
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/80407
Tiivistelmä
In this study, polymorphism in behaviour, morphology, and stable isotope signatures of burbot from Lake Southern Konnevesi, Finland, Europe, was examined. First, local knowledge was collected on exceptional polymorphism of the spawning behaviour and morphology of burbot. These phenomena were then studied based on catch samples. Interviews and catch sample analyses suggested two morphs of burbot: one morph spawning in late February in the littoral zone and other in late March, in deep profundal, depths of about 30 m. Fish caught from the profundal zone had higher average proportional somatic body weights and wider heads than those caught from the littoral spawning sites in February. The length-at-age of the individuals from the littoral catch was longer than that of the profundal catch. Stable isotope analysis revealed differences in the mean carbon isotope ratio between sampling sites, suggesting differences in diet. Variability in several of the aforementioned variables was correlated. This study is the first to imply polymorphism in burbot populations from a lake in Eurasia, where burbot are considered as near-threatened species.
YSO-asiasanat: lisääntymiskäyttäytyminen; kutu; kutupaikat; morfologia; monimuotoisuus; muuntelu (biologia); made
Vapaat asiasanat: behaviour; local knowledge; morphometric; polymorphism; spawning site; spawning time
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2022
JUFO-taso: 1
