Homarus gammarus

Paquet F, Durand J-P, Goudard F, et al. 1993. Distribution of [241Am] in hepato-pancreatic nuclear proteins of the lobster (Homarus gammarus). Biochem Mol Biol Int 29(4) 635-644. 

Pentreath [50] reported 95raTc accumulation in various species of crusacea. The final concentration factor of 785 was obtained for Homarus gammarus L. Using a linear differential model [51], he estimated a steady-state concentration factor (Css) of 1123. 

Bryan, G.W., L.W. Hummerstone, and E. Ward. 1986. Zinc regulation in the lobster Homarus gammarus importance of different pathways and excretion. Jour. Mar. Biol. Assoc. U.K. 66 175-199. 

The Tc concentration in the brown seaweed Fucus vesiculosus increased by up to five times in the outer Oslo ord from 1996 to 1997 (Brown et al ). Elevated Tc levels were also found in lobsters Homarus gammarus) (< 42 Bq kg w. w.) during the same time period (Brown et al ). Conversely, the Tc concentrations in e.g. mussels (Mytilus edulis) collected in the outer OsloQord in 1997 were low (0.68 Bq kg w. w.) (Brown et al ). 

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). 

Figure 8-1. (a) The natural blue coloration of the shell of lobster Homarus gammarus (b) the colour of cooked lobster. From Dr P Zagalsky with permission (see color plate section)... 

Specificity of chemoreception in predators generally is very pronounced. With the actinia Boloceroi des sp., valine is a powerful activator of the feeding response, whereas leucine has no action in this sense and isoleucine inhibits this behaviour (Lindstedt, 1971). A further example of stereospecificity in detection is furnished by the crustacean Homarus gammarus, which reacts to a complex mixture of laevo-rotatory amino acids, but shows no response to the same elements in their dextro-rotatory form (Mackie, 1973). 

Fig. 6.2 Bimodal sensilla. (a) Hedgehog sensilla from the walking leg of Homarus gammarus. Scale bar 100 gm. (b) Antennules of Pacifastacus leniusculus with both unimodal chemosensory aesthetascs (arrows) and slender bimodal chemo- and mechanosensory sensilla (arrowheads ). Scale bar 50 pm. (c) Transverse section through the dendritic outer segments (dos) of a bimodal sensillum from the antennule of Lophogaster typicus. There are three gustatory cells (gu) and one mechanosensory cell (me). The latter has a dense array of microtubules. Scale bar 500 nm...

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...

Skog M (2009a) Intersexual differences in European lobster (Homarus gammarus). recognition mechanisms and agonistic behaviours. Behaviour 146 1071-1091... 

Skog M (2009b) Male but not female olfaction is crucial for intermolt mating in European lobsters (Homarus gammarus L.). Chem Senses 34 159-169... 

Skog M, Chandrapavan A, Hallberg E, Breithaupt T (2009) Maintenance of dominance is mediated by urinary chemicals in male European lobsters, Homarus gammarus. Mar Freshw Behav Physiol 42 119-133... 

American lobster, Homarus americanus, 27, 454, 657, 869 Homarus gammarus, 870 Spiny lobster, Panulirus spp., 300 Western rock lobster, Panulirus argus, 27 Ostracod... 

H.p.l.c. separation of the (—)-camphanic diesters of astaxanthin [3,3 -dihy-droxy-jS,/8-carotene-4,4 -dione (11)] from lobster eggs (Homarus gammarus) showed that all three isomers, (3/2,3 /2), (35,3 5), and (3/2,3 5), were present. This is the first identification of a carotenoid in a natural source." Details of the previously reported" determination of the chirality of peridinin [(35,5/2,6/2,3 5,5 /2,6 5)-5, 6 -epoxy-3,5,3 -trihydroxy-6,7-didehydro-5,6,5, 6 -tetrahydro-10,ll,20-trinor-/8,/8-caroten-19,ll -olide 3-acetate (17)] and dinoxanthin [(35,5/2,6/2,3 5,5 /2,6 5)-5, 6 -epoxy-6,7-didehydro-5,6,5, 6 -tetrahydro-/3,/5-carotene-3,5,3 -triol 3-acetate (12)] have been given."" Sul-catoxanthin from Anemonia sulcata has been shown to be identical to peridinin." ... 

Homarus gammarus (lobster) Eggs 325 000 Sedimentation 10.3 Wyckoff(1937) Zagalsky (1985)... 

Fig. 5A -D. Spectra of lipoproteins from hemolymph and ovary of crabs. A Lipoprotein from ovary of crab Cancer pagurus) in 0.2 M phosphate buffer, pH 7. (Zagalsky et al. 1967) B Lipoprotein II (female-specific lipoprotein) isolated from hemolymph of vitellogenic blue crab Callinectes sapidus). Lipoprotein was in 0.05 M TRIS buffer (pH 8.0). (Lee and Puppione 1988). C Ovorverdin from Homarus gammarus in 0.5 M NaCl — 5 mm EDTA (pH 5). (Zagalsky 1985). D Lipoproteins from ovary of scallop, Pecten maximus, in 0.2 M phosphate buffer (pH 7). Free carotenoids were released from the lipoproteins by extraction with acetone. (Zagalsky et al. 1967)...

Effect of dietary Bacillus spp. and mannan oligosaccharides (MOS) on European lobster Homarus gammarus L.) larvae growth performance, gnt morphology and gut microbiota. Aquaculture, 304,49-57. 

HAUTON c BROCKTON V and SMITH V J (2007) Changes in immune gene expression and resistance to bacterial infection in lobster (Homarus gammarus) post-larval VI following acute or chronic exposure to immune stimulating compounds, Mol Immunol, 44,443-450. 

BEARD T w, RICHARDS P R and wiCKESTS J F (1985) The techniques and practicability of year-round production of lobster, Homarus gammarus, in laboratory recirculation systems. Fisheries Research Technical Report 79. Lowestoft MAFF Directorate of Fisheries Research. 

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