Predation risk triggers copepod small-scale behavior in the Baltic Sea.
diel vertical migration
individual behavior
predator avoidance
video plankton recorder
zooplankton
Journal
Journal of plankton research
ISSN: 0142-7873
Titre abrégé: J Plankton Res
Pays: England
ID NLM: 9882936
Informations de publication
Date de publication:
Historique:
received:
04
09
2019
accepted:
01
09
2020
entrez:
26
11
2020
pubmed:
27
11
2020
medline:
27
11
2020
Statut:
epublish
Résumé
Predators not only have direct impact on biomass but also indirect, non-consumptive effects on the behavior their prey organisms. A characteristic response of zooplankton in aquatic ecosystems is predator avoidance by diel vertical migration (DVM), a behavior which is well studied on the population level. A wide range of behavioral diversity and plasticity has been observed both between- as well as within-species and, hence, investigating predator-prey interactions at the individual level seems therefore essential for a better understanding of zooplankton dynamics. Here we applied an underwater imaging instrument, the video plankton recorder (VPR), which allows the non-invasive investigation of individual, diel adaptive behavior of zooplankton in response to predators in the natural oceanic environment, providing a finely resolved and continuous documentation of the organisms' vertical distribution. Combing observations of copepod individuals observed with the VPR and hydroacoustic estimates of predatory fish biomass, we here show (i) a small-scale DVM of ovigerous
Identifiants
pubmed: 33239965
doi: 10.1093/plankt/fbaa044
pii: fbaa044
pmc: PMC7677935
doi:
Types de publication
Journal Article
Langues
eng
Pagination
702-713Informations de copyright
© The Author(s) 2020. Published by Oxford University Press.
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