Abstract:We conducted field surveys to study avian predation on invertebrates inhabiting the intertidal and shallow subtidal zones in Otsuchi Bay on the Sanriku Coast. The black‐tailed gull Larus crassirostris was the most frequently observed avian predator, and we observed the gull actively foraging on benthic invertebrates at the study site. In particular, we found frequent predation activities by the black‐tailed gull on the abalone Haliotis discus hannnai. The abalone accounted for 56.3% of the total amount of the … Show more
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