Importance of multi-sensor observations to advance species co-occurrence knowledge: A demonstration of two acoustic technologies

Calonge, A.; Goossens, J.; Muñiz, C.; Reubens, J.; Debusschere, E.

doi:/10.3354/meps14496

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Importance of multi-sensor observations to advance species co-occurrence knowledge: A demonstration of two acoustic technologies

Calonge, A.; Goossens, J.; Muñiz, C.; Reubens, J.; Debusschere, E. (2024). Importance of multi-sensor observations to advance species co-occurrence knowledge: A demonstration of two acoustic technologies. Mar. Ecol. Prog. Ser. 727: 49-65. https://dx.doi.org/10.3354/meps14496

In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599

Is gerelateerd aan:

Flanders Marine Institute (VLIZ) (2024). Multipurpose seabed moorings: Developed for coastal dynamic seas. Oceanography Suppl. : In prep., meer

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Calonge, A. Goossens, J. Muñiz, C.	Reubens, J. Debusschere, E.

Abstract

Multi-sensor observations, integrated across time and space, may bridge knowledge gaps in ecosystem dynamics, one aspect of which is species co-occurrence. In the present work, we combined data streams from 2 acoustic technologies; passive acoustic monitoring (PAM) and acoustic telemetry (AT) jointly installed under the LifeWatch project. We made use of existing long-term data series from studies on single-species dynamics, to investigate the co-occurrence of multiple species: European seabass, Atlantic cod and cetaceans (harbour porpoise and dolphins), in the Belgian part of the North Sea. Common co-occurrence analyses were applied to a combined PAM and AT hourly presence-absence matrix at different spatial and temporal resolutions. The fish species were in the presence of harbour porpoise at least one-third (seabass) to nearly half (cod) of the time they were detected. At a seasonal resolution, we did not observe probabilities of occupancy to be higher or lower than what is expected by chance, while we could discern patterns of co-occurrence when using an hourly resolution. Analyses done at an hourly resolution showed that porpoises have a significantly higher probability of co-occurrence with cod or seabass during autumn and winter nights. Developing these large-scale networks of integrated acoustic instruments while considering species co-occurrences would further expand data applicability. Considering co-occurrence in ecological research is a step towards ecosystem-based management of our oceans.

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