Summary
The hermit crab, Pagurus bernhardus is able to remove both Artemia nauplii and unicellular algae from suspension. Crabs with wet weights of 1.1–9.2 g consumed all of the 300 Artemia nauplii contained in 200 ml of sea water within 1 h. Crabs weighing 0.7–1.1 g wet weight filtered suspended Dunaliella algae (8 μm) from concentrations of 10–350 million cells per liter at a rate of 26% and 47% within 2 and 5 h, respectively. A similar result was obtained with an 11 g crab. During filter feeding activity a water current is generated by the flagella of the exopods of the second and third maxillipeds. Artemia nauplii are caught by grasping movements of the endopods of the third maxillipeds, whereas filtering of unicellular algae is probably achieved by the two maxillae. It is assumed that filter feeding activity depends on the same structures and behavior as in deposit feeding. P. bernhardus is one more example of a benthic marine animal which may use any food source which becomes available in the course of the seasons.
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References
Boltt, R.E.: Antennary feeding of the hermit crab Diogenes brevirostris Stimpson. Nature (Lond.) 192, 1099–1100 (1961)
Brightwell, L.R.: Some experiments with the common hermit crab (Eupagurus bernhardus Linn.), and transparent univalve shells. Proc. zool. Soc. Lond. 121, 279–283 (1951)
Brock, F.: Das Verhalten des Einsiedlerkrebses Pagurus arrosor Herbst während der Suche und Aufnahme der Nahrung. Z. Morph. Ökol. Tiere 6, 415–552 (1926)
Greenwood, J.G.: The mouth parts and feeding behaviour of two species of hermit crabs. J. nat. Hist. 6, 325–337 (1972)
Jackson, H.G.: Eupagurus. Proc. Trans. Lpool biol. Soc. 27, 495–573 (1913); and in: L.M.B.C. Memoirs on British Marine Plants and Animals (W.A. Herdman, ed.), Vol. 21, pp. 1–79. London: Liverpool Marine Biological Committee 1913
Jatzke, P.: The Trichterkreisel, an in situ device for cultivating marine animals in tidal currents. Helgoländer wiss. Meeresunters. 20, 685–690 (1970)
MacGinitie, G.E.: Natural history of marine animals, 2nd ed., pp 1–523. New York: McGraw Hill 1968
Orton, J.H.: On the mode of feeding of the hermit crab, Eupagurus bernhardus, and some other Decapoda. J. mar. biol. Ass. UK 14, 909–921 (1927)
Paffenhöfer, G.-A.: Nahrungsaufnahme, Stoffumsatz und Energiehaushalt des marinen Hydroidpolypen Clava multicornis. Helgoländer wiss. Meeresunters. 18, 1–44 (1968)
Roberts, M.H.: Functional morphology of mouth parts of the hermit crabs, Pagurus longicarpus and Pagurus pollicaris. Chesapeake Sc. 9, 9–20 (1968)
Roberts, M.H.: Larval development of Pagurus longicarpus Say reared in the laboratory V. Effect of diet on survival and molting. Biol. Bull. mar. biol. Lab., Woods Hole 146, 67–77 (1974)
Thorson, G.: Some factors influencing the recruitment and establishment of marine benthic communities Neth. J. Sea Res. 3, 267–293 (1966)
Winter, J.E.: Über den Einfluß der Nahrungskonzentration und anderer Faktoren auf Filtrierleistung und Nahrungsausnutzung der Muscheln Arctica islandica and Modiolus modiolus. Mar. Biol. 4, 87–135 (1969)
Yonge, C.M.: The sea shore, pp 1–311. London: Collins 1949
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Gerlach, S.A., Ekstrøm, D.K. & Eckardt, P.B. Filter feeding in the hermit crab. Oecologia 24, 257–264 (1976). https://doi.org/10.1007/BF00345477
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DOI: https://doi.org/10.1007/BF00345477