Crayfish Astacus

Bierkens J, Vangenechten JHD, Van Puymbroeck S, et al. 1986. Effect of Al and humic acids on the 241Am adsorption on the exoskeleton of the crayfish Astacus leptodactylus eschscholtz. Health Phys 50(2) 277-280. 

Kaila, K. and J. Saarikoski. 1977. Toxicity of pentachlorophenol and 2,3,6-trichlorophenol to the crayfish (Astacus fluviatilis L.). Environ. Pollut. 12 119-123. 

Soderhall, K. et al., The cytotoxic reactions of hemocytes from the freshwater crayfish Astacus astacus, Cell. Immunol., 94, 326,1985. 

Shaw, J. (1959). The absorption of sodium ions by the crayfish, Astacus pallipes Lereboullet. I. The effect of external and internal sodium concentrations, J. Exp. Biol., 36, 126-144. 

This enzyme [EC 3.4.24.21] is a zinc-dependent digestive endopeptidase from the cardia of the crayfish Astacus... 

Factors from the eyestalks of H americanus, specifically cHH, have been implicated in playing a role in osmoregulation too [132]. The involvement of cHH in osmoregulation was confirmed in another decapod crustacean, viz in the crayfish Astacus leptodactylus, where the injection of cHH into eyestalk-ablated specimens caused a significant increase in the haemolymph osmolality and Na+ concentration, whereas the concentration of Cl remained unchanged [133]. 

Of the higher forms of animals, shellfish can be frequently found, particularly the well-known Anodonta cygnea L. and crayfish Astacus lepto-dactylus. 

Huber R, Delago A (1998) Serotonin alters decisions to withdraw in fighting crayfish. Astacus astacus the motivational concept revisited. J Comp Physiol A 182 573-583... 

Crab, cocoa-nut, larva (Porcellana sp.) Crayfish (Astacus marinus)... 

Lind C, Hochstein P, Ernster L (1982) DT-diaphorase as a quinone reductase a cellular control device against semiquinone and superoxide radical formation. Arch Biochem Biophys 216 175-185 Lindstrom-Seppa P, Hanninen O (1986) Induction of Cytochrome P-450 mediated mono-oxygenase reactions and conjugation activities in freshwater crayfish Astacus astacus). Arch Toxicol Suppl 9 374-377... 

Lindstrbm-Seppa P, Koivusaari U, Hanninen O (1982) Cytochrome P-450 in the hepatopancreas of freshwater crayfish Astacus astacus. In Hietanen E, Laitinen M, Hanninen O (eds) Cytochrome P-450, biochemistry, biophysics and environmental implications. Elsevier Biomedical, Amsterdam, pp 251-254... 

The absence of chitin in the endosternite (an internal skeletal support from prosomal muscles) of chelicerates has been noted. There is some evidence that chitin isolated from crayfish (Astacus fluviatilis) is bound covalently to protein. ... 

Nagel, R., and K. Urich. 1981. Elimination and distribution of different substituted phenols by frog Rana temporaria) and crayfish (Astacus leptodactylus). Bulletin of Environmental Contamination and Toxicology 26 289-294. 

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