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

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

Alustava JUFO-taso: 1


Viimeisin päivitys 2021-03-11 klo 09:26