Non-trophic interactions amplify kelp harvest-induced biomass oscillations and biomass changes in a kelp forest ecological network model
Perälä, T., Pesari, S. N. K., Ahti, P. A., Lehtinen, S. O., Schoenrock, K. M., & Kuparinen, A. (2023). Non-trophic interactions amplify kelp harvest-induced biomass oscillations and biomass changes in a kelp forest ecological network model. Marine Ecology Progress Series, 722, 19-36. https://doi.org/10.3354/meps14438
Julkaistu sarjassa
Marine Ecology Progress SeriesTekijät
Päivämäärä
2023Oppiaine
Solu- ja molekyylibiologiaResurssiviisausyhteisöAkvaattiset tieteetNanoscience CenterCell and Molecular BiologySchool of Resource WisdomAquatic SciencesNanoscience CenterTekijänoikeudet
© The authors 2023
Kelp forests are important marine ecosystems providing habitat for numerous species. Despite over 50 yr of mechanical harvesting in the Northeast Atlantic, the indirect impacts of kelp harvesting and associated habitat loss on faunal species within kelp forests remain poorly understood. We investigated the consequences of kelp harvesting by developing an allometric trophic network model for a subtidal Northeast Atlantic kelp forest (dominated by Laminaria hyperborea). Additionally, we designed a novel mechanistic model to explore the non-trophic interactions between kelp and age-class 0 Atlantic cod Gadus morhua and between kelp and European lobster Homarus gammarus, specifically focusing on the increased survival benefits provided by the kelp habitat. Simulations were conducted over a 50 yr period, incorporating harvesting cycles of 2, 5, and 9 yr, as well as low and high harvesting intensities. Our findings reveal the complex dynamics resulting from kelp harvesting. The recovery of kelp biomass was observed with 5 and 9 yr harvesting cycles, whereas a decline was observed with a 2 yr cycle. Furthermore, the non-trophic interactions facilitated a higher pre-harvest biomass for both European lobster and Atlantic cod compared to scenarios without this interaction. These results highlight the multitrophic effects of kelp harvesting and emphasize that the recovery of kelp-associated species may not necessarily align with kelp recovery, depending on harvesting intensity and recovery periods. Importantly, our study contributes to a better understanding of the ecological consequences of kelp harvesting and underscores the need for sustainable management practices to mitigate habitat loss in kelp ecosystems.
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Julkaisija
Inter-ResearchISSN Hae Julkaisufoorumista
0171-8630Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/194632733
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Akatemiahanke, SA; Tutkijatohtori, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
This project received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement COMPLX-FISH No 770884 to A.K.). The project also received funding from the Academy of Finland (project grant 317495 to A.K., project grant 350392 to S.O.L.) and from the Emil Aaltonen Foundation (through a project grant to A.K.). K.M.S. was supported by the Environmental Protection Agency in Ireland (2018-W-MS-35) ‘KelpRes: the Diversity and Resilience of kelp ecosystems in Ireland’. ...Lisenssi
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