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Separate and combined effects of boat noise and a live crab predator on mussel valve gape behavior
Hubert, J.; van der Burg, A.D.; Witbaard, R.; Slabbekoorn, H. (2023). Separate and combined effects of boat noise and a live crab predator on mussel valve gape behavior. Behav. Ecol. 34(3): 495-505.
In: Behavioral Ecology. Oxford University Press: New York. ISSN 1045-2249; e-ISSN 1465-7279, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

    Bivalvia [WoRMS]; Carcinus maenas (Linnaeus, 1758) [WoRMS]; Mytilus Linnaeus, 1758 [WoRMS]
Author keywords
    anthropogenic noise; bivalve; Carcinus maenas; crab; mussel; Mytilus; predator–prey interaction sound

Auteurs  Top 
  • Hubert, J.
  • van der Burg, A.D.
  • Witbaard, R., meer
  • Slabbekoorn, H.

    Noisy human activities at sea are changing the acoustic environment, which has been shown to affect marine mammals and fishes. Invertebrates, such as bivalves, have so far received limited attention despite their important role in the marine ecosystem. Several studies have examined the impact of sound on anti-predator behavior using simulated predators, but studies using live predators are scarce. In the current study, we examined the separate and combined effects of boat sound playback and predator cues of shore crabs (Carcinus maenas) on the behavior of mussels (Mytilus spp.). We examined the behavior of the mussels using a valve gape monitor and scored the behavior from the crabs in one of two types of predator test conditions from video footage to control for effects from potential, sound-induced variation in crab behavior. We found that mussels closed their valve gape during boat noise and with a crab in their tank, but also that the stimulus combination did not add up to an even smaller valve gape. The sound treatment did not affect the stimulus crabs, but the behavior of the crabs did affect the valve gape of the mussels. Future research is needed to examine whether these results stand in situ and whether valve closure due to sound has fitness consequences for mussels. The effects on the well-being of individual mussels from anthropogenic noise may be relevant for population dynamics in the context of pressure from other stressors, their role as an ecosystem engineer, and in the context of aquaculture.

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