Decapod crabs

Decapods Crab (unidentified) zoea sp. Phaeocystis in situ gut microscopy Lebour (1922)... 

VILLANUEVA R (1994) Decapod crab zoeae as food for rearing cephalopod paralarvae , Aquaculture, 128,143-152. 

In addition to the species mentioned, there are others that also introduced from the near-shore waters of the Pacific or Indian oceans after the opening of the Suez Canal initially, they established in the coastal waters of Europe and the Adriatic Sea and then were driven to the Black Sea. These are the poly-chaets Capitellethus dispar and Glycera carpita, the gastropod Potamopyrgus jenkinsi, and the decapod—Chinese mitten crab Eriocheir sinensis. However, these invaders have not become abundant species in the Black Sea. 

The main histological changes in the decapod cuticle during moult were described by Travis (1963, 1965, 1970) and are summarized in the beautiful ultrastructural study of the integument of the fiddler crab Uca by Green and Neff (1972). 

Other Decapod Crustacea. The fate of the pesticide fenitrothion has been studied in blue crabs, Callinectes sapidus, after water-borne exposure to 5.2 ppb for 48 hours (86). The hepatopancreas was the major organ of uptake (0.3 ig fenitrothion equivalents/g after 48 hours), and concentrations in muscle were very low (0.026 ig/g), although muscle concentrations were almost 4 times higher than hemolymph concentrations (86). The major metabolites of fenitrothion found in hepatopancreas were fenitrooxon, desmethylfenitrooxon and 3-methyl-4-nitrophenol, and these metabolites were also recovered from the tank water (86). 

Fig. 6.3 Decapod antennules and sensilla. (a) Antennule of the crab Carcinus maenas. The aesthetascs (arrow) form a dense array on the lateral filament. Scale bar 500 pm. (b) Part of antennule of the European lobster Homarus gammarus. Unimodal aesthetascs (ae) are surrounded by bimodal guard hairs (arrows) and companion hairs (arrowheads). Scale bar 500 pm. (c) The aesthetascs on the antennule of H. gammarus are arranged in two rows (black arrows) on each annulus. The sockets of the guard and companion hairs surround the aesthetascs (white arrows). Scale bar 200 pm. (d) Part of antennule of the crayfish Pacifastacus leniusculus. There is one distal group (dg) and one proximal group (pg) of aesthetascs on each annulus. Scale bar 100 pm...

Schmidt M, Gnatzy W (1984) Are the funnel-canal organs the campaniform sensilla of the shore crab, Carcinus maenas (Decapoda, Crustacea) II. Ultrastructure. Cell Tiss Res 237 81-93 Schmitt BC, Ache BA (1979) Olfaction responses of a decapod are enhanced by flicking. Science... 

Fig. 12.1 Phylogeny of decapod crustaceans, showing that lobster is not a monophyletic grouping, but rather a body form. The clades representing the lobsters that we discuss in this chapter - clawed, spiny and slipper lobsters - are shaded in this figure. Clawed lobsters are more closely related to freshwater crayfishes than spiny and slipper lobsters, which are more closely related to true and hermit crabs, the latter in a group (Anomala) that includes animals also referred to as lobsters. Reproduced with modifications from Dixon et al. (2003). Copyright 2003 by Koninklijke Brill NV, Leiden, The Netherlands...

Salmon M (1987) On the reproductive behavior of the fiddler crab Uca thayeri, with comparisons to U. pugilator and U. vocans evidence for behavioral convergence. J Crust Biol 7 25 14 Sainte-Marie B (2007) Sperm demand and allocation in decapods crustaceans. In Duffy JE, Thiel... 

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