Imabayashi, Hiromichi; Saito, Hidetoshi; Ohmasa, Chiaki; Kawai, Koichiro. (1996). Foraging behavior of the polychaete Halla okudai in aquariums. Benthos Research. 50(1):11-17 [In Japanese with English abstract, tables and figure legends].

560442

10.5179/benthos1990.1996.50_11 [view]

Imabayashi, Hiromichi; Saito, Hidetoshi; Ohmasa, Chiaki; Kawai, Koichiro

1996

50(1):11-17 [In Japanese with English abstract, tables and figure legends].

Publication

https://doi.org/10.5179/benthos1990.1996.50_11

AnnelidaBase

Available for editors   [request]

A unique foraging behavior of the carnivorous polychaete Halla okudai (Lysaretidae) is described in detail. Living bivalves, Ruditapes philippinarum were supplied to adult H. okudai, which were burrowing in sandy sediment in aquariums. The foraging behavior was divided into 4 stages ; responding, searching, handling, and feeding. Responding and searching were considered to be dependent on the olfactory sense, and searching was significantly responsible for the variation in total foraging time. Handling was performed by inhibiting the escape of the bivalve and then opening its shell while secreting a jelly-like material. Bivalve size (23.8-26.3mm shell length) showed a significant correlation to handling time, which ranged from 0.87 to 6.67hr. During feeding, the polychaete continued to secrete the jelly-like material, which was different in hue from that secreted during handling.

Japan

Carnivory
Ecology
Trophic ecology, Trophic structure, Trophic fluxes, Carbon fluxes, Trophic webs

Annelida
Polychaeta

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