A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Lifting the Vendace, Coregonus albula, on the Life Table : Survival, Growth and Reproduction in Different Life-Stages during Very High and Low Abundance Regimes (2021)
Marjomäki, T. J., Valkeajärvi, P., & Karjalainen, J. (2021). Lifting the Vendace, Coregonus albula, on the Life Table : Survival, Growth and Reproduction in Different Life-Stages during Very High and Low Abundance Regimes. Annales Zoologici Fennici, 58(4-6), 177-189. https://doi.org/10.5735/086.058.0406
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Marjomäki, Timo J.; Valkeajärvi, Pentti; Karjalainen, Juha
Lehti tai sarja: Annales Zoologici Fennici
ISSN: 0003-455X
eISSN: 1797-2450
Julkaisuvuosi: 2021
Ilmestymispäivä: 06.09.2021
Volyymi: 58
Lehden numero: 4-6
Artikkelin sivunumerot: 177-189
Kustantaja: Finnish Zoological and Botanical Publishing Board
Julkaisumaa: Suomi
Julkaisun kieli: englanti
DOI: https://doi.org/10.5735/086.058.0406
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/78469
Tiivistelmä
We analyzed the variability in vendace population parameters in the context of a life table. Parameters related to growth, fecundity and survival were estimated for post-recruitment (age > 1 growing season) life stages of Lake Southern Konnevesi vendace in both very high and low population abundance regimes. Pre-recruitment survival producing population stability was then determined. We found a very strong compensatory density dependence in growth, fecundity and survival: during low abundance, a lifetime reproductive output of a female was almost 20 times that of the abundant regime. To maintain the low abundance regime, pre-recruitment survival must counterbalance it by decreasing to a very low level. Potential drivers of high variability in pre-recruit survival and potential for depensation, Allee effect, are discussed, as well as the implications of the results on fisheries management and risk of extinction due to anthropogenic stressors such as global warming or extensive predator stocking.
YSO-asiasanat: muikku; kalakannat; populaatiodynamiikka; elinkierto; lisääntyminen; henkiinjääminen
Liittyvät organisaatiot
OKM-raportointi: Kyllä
Raportointivuosi: 2021
JUFO-taso: 1
