Larval Development of the Land Hermit Crab Coenobita Compressus H. Milne Edwards Reared in the Laboratory

Brodie, Renae J.; Harvey, Alan W.

doi:10.1163/20021975-99990169

Cited by 14 publications

(16 citation statements)

References 6 publications

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“…The maxillary scaphognathite of E umunida agrees with the type 1 classification of Van Dover et al 1982: posterior lobe absent and, usually, with 5 marginal plumose setae. This scaphognathite is found in pagurids, diogenids, coenobitids and lithodids (Van Dover et al 1982, Konishi & Taishaku 1994, Hebling & Mansur 1995, Brodie & Harvey 2001, McLaughlin et al 2003. In these anomurans, the posterior lobe first appears in the last zoeal stage or in the first postlarval stage (Van Dover et al 1982).…”

Section: Discussionmentioning

confidence: 96%

First stage zoeal descriptions of five Galatheoidea species from Western Pacific (Crustacea: Decapoda: Anomura)

Guerao¹,

Macpherson²,

Samadi³

et al. 2006

Zootaxa

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The first zoeal stages of the galatheids Neonida grandis, Agononida squamosa and Munida javieri, and the chirostylids Eumunida annulosa and E. capillata are described and illustrated from laboratory-hatched material obtained from ovigerous females collected from south western Pacific. The morphologies of the first zoeae are compared with the same larval stage of other known anomuran species. The larval characters of Agononida squamosa and Neonida grandis are similar to those described for Agononida incerta. Munida javieri exhibits features not present in other described species of Munida such as the setation of the endopod of the maxillule and the antennal morphology. Eumunida annulosa and E. capillata do not show abbreviated development as in other described chirostylids such as Uroptychus and Gastroptychus, and its larval morphology is equivalent to the first stage of galatheid zoeae. However, many morphological characters of Eumunida species are typically pagurid, such as the two terminal plumose setae of the antennal endopod, the three-segmented endopod of the maxillule, the posterior margin of the carapace without spines, and the scaphognathite with 5 plumose setae and without a posterior lobe.

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Section: Discussionmentioning

confidence: 96%

First stage zoeal descriptions of five Galatheoidea species from Western Pacific (Crustacea: Decapoda: Anomura)

Guerao¹,

Macpherson²,

Samadi³

et al. 2006

Zootaxa

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“…In non-aeglid anomurans, pleopods 2-5 are absent (regular development pattern) or present as buds or incompletely developed rudiments (abbreviated development pattern) in the first zoeal instar, that gradually develop to non-functional appendages during larval development, and attain full development to become functional at the megalopal stage (Pike & Wear 1969;Haynes 1982;Stuck & Truesdale 1986;Christiansen & Anger 1990;Brodie & Harvey 2001;Harvey 1992;Cormie 1993;Hernández et al 2002;Barria et al 2006;Fujita & Clark 2010;Baba et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Description of the newly-hatched juvenile of Aegla perobae (Crustacea: Decapoda: Aeglidae)

Moraes

Bueno

2015

Zootaxa

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The present paper contains the complete description of the external morphology of the first juvenile stage of Aegla perobae analysed through light microscopy (LM) and scanning electron microscopy (SEM). Newly-hatched juveniles were obtained from ovigerous females kept under laboratory conditions. Hatching is asynchronous, taking 2-4 days for all juveniles of a single brood to hatch. Average carapace dimensions are 1.54 mm wide and 1.69 mm long (rostrum excluded). Morphology of the carapace, of the cephalothoracic appendages (antennule, antenna, mandible, maxillule, maxilla, maxillipeds, and pereopods), of the pleon, and of the tail fan (telson plus uropods) are described in detail. Aegla perobae juveniles can be readily differentiate from the first juveniles of other aeglids species described so far by the upwardly curved condition of the distal region of the rostrum and the distinct groove along the orbital sinus produced the elevated free in this area. Pleopods 2-5 are present as rudimentary digitiform buds. Rudimentary pleopods are still present in adult males of the species, a trait not yet described in freshwater aeglids. This curious condition is compared and discussed in the light of the current knowledge of early postembryonic developmental patterns found in other anomurans.

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“…Coenobita compressus (Brodie ; Brodie & Harvey ) and C. variabilis (Harvey ) megalopae remained underground for 1–6 d and 1–2 d, respectively, before re‐emerging as juvenile crabs. This behavior appears to protect the animals from desiccation and predation during molting.…”

Section: Discussionmentioning

confidence: 99%

“…Molting rates of megalopae that were transferred to the test containers and those of first and second crabs were compared. Coenobita variabilis (Harvey ) and C. compressus (Brodie , ; Brodie & Harvey ) megalopae show molt‐related burrowing behavior under laboratory conditions; that is, they bury themselves in sand prior to molting. Molt‐related burrowing behavior has also been reported in cultured megalopae and first‐stage crabs of C. brevimanus (Hamasaki et al.…”

Section: Methodsmentioning

confidence: 99%

Emigration behavior and molting during the sea‐to‐land transition of terrestrial hermit crabs under laboratory conditions

Hamasaki

Hatta

Ishikawa

et al. 2015

Invertebrate Biology

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Terrestrial hermit crabs in the family Coenobitidae (genera Coenobita and Birgus) must migrate onto land after completing a pelagic larval stage in the ocean. Better knowledge of emigration behavior would assist in the conservation and management of coenobitid populations by helping identify and protect the habitats they need to complete their life cycles. We cultured laboratory-born individuals of five coenobitid species (Coenobita cavipes, C. purpureus, C. rugosus, C. violascens, and Birgus latro) from megalopae to early juveniles (first, second, and/or third crabs) in vessels containing seawater and a hard substrate, and analyzed their behavior and molting in conjunction with our published data for C. brevimanus. Our results confirm that the coenobitids migrated from sea to land at the megalopal stage. Megalopae and early juveniles tended to select shells based on their body size. Inland-dwelling coenobitids, such as C. brevimanus, C. cavipes, and B. latro, had a longer duration from landing to first molt and had a prolonged first crab intermolt period compared with those of the beach-dwelling coenobitids C. purpureus, C. rugosus, and C. violascens, probably because of the adaptive traits for migrating to inland habitats. Little burrowing behavior was observed by megalopae of B. latro, but they had a strong tendency to be cryptic under shelters. Additionally, megalopae and early juveniles of Coenobita spp. created and utilized burrows somewhat differently. Our results suggest that coenobitids require specific microhabitats for completing their early life stages in the wild. In particular, megalopae of B. latro may need structurally complex refuges to migrate from the sea.

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Larval Development of the Land Hermit Crab Coenobita Compressus H. Milne Edwards Reared in the Laboratory

Cited by 14 publications

References 6 publications

First stage zoeal descriptions of five Galatheoidea species from Western Pacific (Crustacea: Decapoda: Anomura)

First stage zoeal descriptions of five Galatheoidea species from Western Pacific (Crustacea: Decapoda: Anomura)

Description of the newly-hatched juvenile of Aegla perobae (Crustacea: Decapoda: Aeglidae)

Emigration behavior and molting during the sea‐to‐land transition of terrestrial hermit crabs under laboratory conditions

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