Pagurus

Pagurus sp. 1-5 residues, in mg/kg whole-body FW, after exposure for 3 days ranged between 3.2 and 15, and were dose dependent 8... 

The mandibular organ-inhibiting hormone of the crab Cancer pagurus produces two neurohormones that inhibit the secretion of methyl famesoate, which is thought to function as the juvenile hormone in crustaceans 357... 

Cancer pagurus cuticle can be dispersed in hot, aqueous solutions of lithium thiocyanate and be reprecipitated without separating the chitin and protein components. The stability of the complex under these conditions would suggest the presence of primary bonding. Thus, some ehitin-protein bonding does exist in arthropod cuticle, but its exact nature and its physiological significance or its involvement in chitin biosynthesis (or both) remain uncertain. 

Castberg, T, Torgersen, T, Aasen, J., Aune, T, and Naustvoll, L-J. 2004. Diarrhoetic shellfish poisoning toxins in Cancer pagurus Linnaeus, 1758 (Brachyura, Cancridae) in Norwegian waters. Sarsia, 89(5), 311-317. 

Torgersen, T, Aasen, J., and Aune, T. 2005. Diarrhetic shellfish poisoning by okadaic acid esters from Brown crabs (Cancer pagurus) in Norway. Toxicon 46, 572-578. 

Exposure is mainly through food but also a direct uptake from water is also evident for aquatic organisms. This means that organisms exposed to even moderately elevated cadmium levels will bioaccumulate the element very effectively significantly elevated levels are found, for instance, in kidney and liver tissue from wild herbivorous animals such as the elk (Alces aloes ) and in the hepatopancreas of marine crustaceans such as the lobster (Homarus gammarus) and the crab (Cancer pagurus). 

N. t, Nassarius trivitatus P.,Pagurus T.a., Telllna agilis S.o.,Spiochaetoplerusoculatus. 

Procambarus. clarkii Procambarus bouvieri, Carcinus maenas Cancer pagurus Callinectes sapidus Charybdis feriatus Cancer magister Penaeus japonicus Penaeus monodon P. monodon Penaeus vannamei... 

Mandibular organ-inhibiting hormone Canpa MOIH-1 Cancer pagurus... 

Few studies have looked at the expression of MIH apart from the classical XO-SG distribution, and the results are not all in agreement. Northern blots, PCRs and immunocytochemistry with antisera raised to recombinant MIH-B of M. ensis showed that MIH-B is expressed in the eyestalk (XO) and ventral nerve cord [106], whereas PCRs and Northern blots showed expression of a putative MIH only in the eyestalks of M rosenbergii [107]. In C. pagurus, MIH-like transcripts were detected by Northern blotting only in XOs, whereas the more-sensitive nested PCR approach revealed that MIH could be amplified from optic nerve and the... 

Investigations into the mode of action of MOIH (or SG extracts) on the MO have been carried out in a few crustaceans only and not much is known. Cyclic nucleotides are involved in signal transduction - cyclic GMP is apparently important in H. americanus, whereas cyclic AMP is essential in C. pagurus [see 121]. 

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