Pore Canals and Organization of Chitinoproteins in the Cuticle of the Crab Carcinus Maenas

Goffinet, Gérhard; Compère, Philippe

doi:10.1007/978-1-4613-2167-5_6

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…This layer is deposited during moult stage C 3 and is located between the endocuticle and the hypodermis. (Skinner 1962, Keller and Adelung 1970, Green and Neff 1972, Welinder 1975, Hegdahl et al 1977, Voss-Foucart and Jeuniaux 1978, Sarda 1981, Goffinet and Compere 1986. Generally, this layer has been reported in the carapace of decapod crustaceans.…”

Section: Membranous Layermentioning

confidence: 99%

Comparative ultrastructure of the cuticle of some pelagic, nektobenthic and benthic malacostracan crustaceans

Pütz

Búchholz

1991

Mar. Biol.

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The ultrastructure of malacostracan integument was examined and compared in 11 species collected primarily from the western Baltic Sea in 1989, of which eight species were studied for the first time (indicated below by an asterisk). We attempted to relate cuticle structure and thickness to swimming aptitude. The pelagic euphausiid Meganyctiphanes norvegia and the mysids Praunus flexuosus* and Neomysis integer* displayed a thin, little-mineralized, and thus light-weight cuticle. Laminae of the endocuticle were very thin (0.1/~m) relative to those of the exocuticle (1/~m). In contrast, laminae in the procuticles of the benthic amphipods Gammarus locusta, Caprella linearis*, Corophiurn volutator*, Orchestia garnrnarellus*, and the isopod Idotea baltica were evenly distributed, comparatively thick (1 to 2/~m), and more heavily mineralized. The nektobenthic amphipod Hyperia galba*, the cumacean Diastylis rathkei* and the decapod Crangon crangon* migrate between pelagic and benthic regions. Only near the hypodermis did these organisms exhibit the characteristically pelagic fine-layered endocuticle. A membranous layer was lacking in all species investigated. In contrast to the less-mineralized cuticles of the species analyzed here, a membranous layer appears to be restricted to crustaceans with heavily calcified shells. Ultrastructural results were substantiated by morphometric calculations, which indicated differences in thickness of the total cuticle relative to body volume. In the pelagic malacostracans, thickness of the cuticle did not increase with body volume over the size range investigated.

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