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Topic: Homarus


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A peptide was isolated and purified from sinus glands of the lobster, Homarus americanus, that was able to decrease circulating titers of ecdysteroids and increase the molt interval of eyestalk-ablated juvenile lobsters.
Sodium regulation in Homarus americanus changes from isoionic in Stage III to slightly hyperionic in Stage IV, and this is paralleled by improved survival of Stage IV lobsters in dilute media.
Removal of eyestalks of Homarus americanus on different days and molting stages during larval development revealed that eyestalk tissue is involved in the larval and postlarval molting rhythm and in preparation for metamorphosis as early as the end of Stage II.
www.bio.umass.edu /biology/kunkel/fish/lobster/lobster-bib2000.html   (19774 words)

  
 biotemp
Two species of lobster belong to the genus Homarus, both of which are common and of extreme commercial importance - - Homarus americanus and Homarus gammarus (= vulgaris).
Homarus americanus is commonly known as the American lobster, the Northern lobster, or the Maine Lobster.
Homarus gammarus, or the European lobster, is found in the eastern Atlantic from northwestern Norway (Lofoten Islands) to the Azores and Morocco from the low tide mark to 150 meters, but is usually not found much deeper than fifty meters.
www.lobsters.org /tlcbio/biology7.html   (718 words)

  
 The Biological Bulletin: Identification of juvenile hormone-active alkylphenols in the lobster Homarus americanus and ...   (Site not responding. Last check: 2007-10-20)
Identification of juvenile hormone-active alkylphenols in the lobster Homarus americanus and in marine sediments.
We have identified, by gas chromatography/mass spectrometry, four alkylphenols that are present in the hemolymph and tissues of the American lobster Homarus americanus and in marine sediments.
These alkylphenols are used industrially in antioxidant formulations for plastic and rubber polymer manufacturing, and are similar in structure to a known endocrine disruptor, bisphenol A. The compound 2-t-butyl-4-(dimethylbenzyl)phenol was present at concentrations of 0.02 to 1.15 [micro]g/ml in hemolymph and 8.95 to 21.58 [micro]g/g in sediments.
www.highbeam.com /library/doc0.asp?DOCID=1G1:114170407&refid=ip_encyclopedia_hf   (213 words)

  
 The American Lobster
In Homarus, the first of the five pairs of walking legs is modified to form the large crusher and ripper claws.
Homarus americanus is intensely fished all along the northeast Atlantic Coast of Canada and the United States as far south as New England, and particularly in Maine.
Homarus americanus has two large claws: the crusher claw is the larger of the two, while the ripper claw has a sharper point.
seagrant.gso.uri.edu /factsheets/fslobster.html   (1225 words)

  
 Homarus Labortatory Exercise   (Site not responding. Last check: 2007-10-20)
This exercise is written specifically for the American lobster, Homarus americanus, but can also be used with any genus of freshwater crayfish or any other clawed lobster such as Nephrops.
Homarus has 20 pairs of gills (Nephrops has 19 and in crayfishes the number varies).
The pale, feathery gills are housed in a branchial chamber between the lateral carapace and the body (Fig 14, 19-3).
www.lander.edu /RSfox/310homarusLab.html   (9492 words)

  
 Marine Fisheries Review: Homarid Lobster Hatcheries: Their History and Role in Research, Management, and Aquaculture   (Site not responding. Last check: 2007-10-20)
Couch, R. On the metamorphosis of decapod crustaceans: larvae of Palinuris and Homarus.
Cowan, D. Method for assessing relative abundance, size distribution, and growth of recently settled and early juvenile lobsters (Homarus americanus) in the lower intertidal zone.
Observations on hatching and larval release in the lobster, Homarus americanus.
www.findarticles.com /p/articles/mi_m3089/is_2_61/ai_65133664/pg_31   (863 words)

  
 Species - Open Encyclopedia   (Site not responding. Last check: 2007-10-20)
For example, two related species of lobsters are Homarus americanus and Homarus gammarus.
It would be incorrrect to say americanus and gammarus are two species in the genus Homarus, just as it would be incorrect to say "Monterey" is a species of pine (Monterey is a place in California)—the tree is a Monterey pine.
Thus, Homarus americanus is the species name for what is commonly called a Maine lobster.
open-encyclopedia.com /Species   (3837 words)

  
 Gaffkemia of Lobsters
Stewart, J.E. The detection of Gaffkya homari, the bacterium pathogenic to lobsters (genus Homarus).
Gaffkemia, a bacterial disease of lobsters (Genus Homarus).
Influence of temperature on gaffkemia, a bacterial disease of the lobster Homarus americanus.
www.pac.dfo-mpo.gc.ca /sci/shelldis/pages/gaffklo_e.htm   (846 words)

  
 Fishery Bulletin: The effect of timing of tagging on streamer-tag recapture rates for American lobster - Homarus ...
Lobsters tagged in the premolt stage have been separated into early and late premolt divisions, and n is the number of lobster used to calculate the adjusted recapture rate.
Table 2 Number of lobsters (Homarus americanus) that died during the aquarium experiments from different traumas identified by autopsies.
Lobster (Homarus americanus) movement in the southern Gulf of St. Lawrence--summary sheets of tagging projects conducted between 1980 and 1997.
www.findarticles.com /p/articles/mi_m0FDG/is_3_101/ai_107524523/pg_5   (676 words)

  
 Fishery Bulletin: The effect of timing of tagging on streamer-tag... @ HighBeam Research   (Site not responding. Last check: 2007-10-20)
Abstract--Streamer tags are commonly used to study the ecology and population biology of the American lobster (Homarus americanus).
Aquarium observations suggest that streamer tag loss, either through tag-induced mortality or tag shedding, is related to the molt stage of the lobster at the time of tagging, and the molting event itself.
One major improvement in the mid 1960s was the introduction of an insertion tag called the "sphyrion tag" that is anchored to muscle tissue (Scarratt and Elson, 1965), instead of body tags (Templeman, 1935) or carapace-piercing tags (Wilder, 1953) used earlier.
www.highbeam.com /library/doc0.asp?DOCID=1G1:107524523&refid=holomed_1   (5301 words)

  
 NPB Faculty: Ernest S. Chang
Crustacean hyperglycemic hormone gene expression in the lobster Homarus americanus.
In vivo muscle protein synthesis rates in the American lobster, Homarus americanus, during the moult cycle and in response to 20-hydroxyecdysone.
Sex recognition and the role of urinary cues in the lobster, Homarus americanus.
www.npb.ucdavis.edu /npbdirectory/chang.html   (484 words)

  
 Smoked Salmon
Homarus was one of the earliest ones, started by Heineman and Karen Benvin in 1975, with trout smoked in an L.L. Bean smoker in the back yard.
At Homarus, the filleted salmon is sprinkled with salt and brown sugar.
Homarus’ orange-cured salmon is subtle, a good match with Sunday brunch mimosas.
www.samcooks.com /flavor/smoked_salmon.htm   (1200 words)

  
 Ch08   (Site not responding. Last check: 2007-10-20)
Panulirus homarus mainly on west, soutwest and south coasts; P. versicolor and P ornatus mainly on northwest, north, northeast and east coasts.
Panulirus homarus breeds throughout the year and carries eggs in clusters on swimmerets.
Associated with Panulirus homarus on west coast and P. versicolor on east coast, but always close to coral formation Sensitive to wave action and avoids surf zone; comes out into open on moonlight nights; single or in pairs.
www.fao.org /docrep/T0726E/t0726e08.htm   (949 words)

  
 Protein Spotlight Issue 26: Squeeze me and I will change color
Astaxanthin is a carotenoid and, in the Northern European lobster, Homarus gammarus, it is carried by a protein, crustacyanin.
Lederer's adaptation of Tsvet's first achievement was particularly successful and they managed to isolate and purify a large number of carotenoids, amongst which astaxanthin.
In Homarus gammarus a rather large protein complex carries the chromophore: alpha-crustacyanin.
us.expasy.org /spotlight/back_issues/sptlt026.shtml   (1164 words)

  
 Kulmiye & Mavuti-Growth and moulting of captive <i>P. h. homarus</i>
Abstract Panulirus homarus homarus is the most widely distributed of the three P.
homarus subspecies and is the second most important spiny lobster in the Kenyan lobster fishery after Panulirus ornatus.
Growth and moulting of lobsters held in concrete tanks with a flow-through sea-water system and at ambient temperatures, were monitored for 18 months (October 2001–March 2003).
www.rsnz.org /publish/nzjmfr/2005/042.php   (304 words)

  
 Immunolocalization of NA+,K+-ATPase in the Branchial Cavity During the Early Development of the European Lobster ...
Charmantier G, Aiken DE (1987) Intermediate larval and postlarval stages Homarus americanus Milne Edwards, 1837 (Crustacea, Decapoda).
Helluy S, Beltz B (1991) Embryonic development of the American lobster (Homarus americanus): quantitative staging and characterization of an embryonic molt cycle.
Lucu C, Devescovi M (1999) Osmoregulation and branchial Na -ATPase in the lobster Homarus gammarus acclimated to dilute seawater.
www.jhc.org /cgi/content/full/49/8/1013   (4258 words)

  
 Stefan Pulver   (Site not responding. Last check: 2007-10-20)
Pulver SR, Marder E (2002) Neuromodulatory complement of the pericardial organs in the embryonic lobster, Homarus americanus.
Pulver SR, Marder E (2001) Developmental Acquisition of Neuromodulators in the Pericardial Organs of the Lobster, Homarus americanus.
Pulver SR, Marder E (2001) Neuromodulatory Complement of the Pericardial Organs in the Embryonic Lobster, Homarus americanus.
www.bio.brandeis.edu /marderlab/stefan.html   (404 words)

  
 Lavalli Publications
Lavalli, K.L. (1991) Survival of early juvenile American lobsters (Homarus americanus) during their first season on diets of mesoplankton, microplankton, and frozen brine shrimp.
In: The Biology of the Lobster, Homarus americanus, (Jan Robert Factor, ed.), Academic Press, NY.
Development of the stomatogastric system of larval and postlarval American lobsters, Homarus americanus: Redescription of the morphology of the cardiac sac and pyloric stomach and kinematics of cardiac sac, gastric mill, and pyloric stomach.
www.lobsters.org /board/lavalli/lavalli2.html   (2144 words)

  
 Neuroguide.com - Biology of the Lobster Homarus americanus   (Site not responding. Last check: 2007-10-20)
I write to bring to your attention the recent publication of Biology of the Lobster Homarus americanus.
I think this volume will be a valuable shelf reference for neurobiologists working with various crustacean systems, especially the decapods such as crabs, spiny lobsters, and, of course, the American lobster Homarus americanus.
This comprehensive reference brings together all that is known of this fascinating and widely distributed species, Homarus americanus.
www.genetics.gla.ac.uk /neil/lobster.html   (458 words)

  
 Lobster: notes on its size in European seas, Homarus gammarus
This lobster had arrived at the restaurant as part of a regular seacatch delivery from off the Cornish coast and was to be boiled in the pot that afternoon.
An American Lobster, Homarus americanus, was discovered captured by a fishing vessel on a boat out of Selsey, West Sussex.
Demolition of part of a jetty; found under a caisson, which is a case for keeping out water while the foundations of the jetty were being built.
www.glaucus.org.uk /Lobster.htm   (1335 words)

  
 The Secret Life of Lobsters - Author
"Behavior and Sensory Biology." Biology of the Lobster, Homarus americanus.
Ennis, G.P. "Larval and Postlarval Ecology." Biology of the Lobster, Homarus americanus.
Scarratt, D.J. "Abundance and Distribution of Lobster Larvae (Homarus americanus) in Northumberland Strait." Journal of the Fisheries Research Board of Canada, v.
www.secretlifeoflobsters.com /behind/bib.asp   (3093 words)

  
 Osmotic Induction of Stress-Responsive Gene Expression in the Lobster Homarus americanus -- Spees et al. 203 (3): 331 ...
Osmotic Induction of Stress-Responsive Gene Expression in the Lobster Homarus americanus -- Spees et al.
Osmotic Induction of Stress-Responsive Gene Expression in the Lobster Homarus americanus
Dall, W. Osmoregulation in the lobster Homarus americanus.
www.biolbull.org /cgi/content/full/203/3/331   (3453 words)

  
 Stuart Cromarty's Page - Department of Natural Science, Assumption College (Lobsters, Aggression)   (Site not responding. Last check: 2007-10-20)
A fundamental problem in the study of neuroethology is understanding how sensory information, acquired from the environment, is coded by higher level structures in the central nervous system (CNS), leading to some new or modified behavioral act.
I have been using crustaceans primarily the American lobster, Homarus americanus, as an animal to model.
This animal is intrinsically aggressive and can be manipulated to fight in close quarters in experimental tanks within a closely monitored laboratory environment.
www.assumption.edu /users/cromarty/stuart.html   (1100 words)

  
 Homarus - SeaSpecialties Inc
The most extensive line of European cured smoked salmon and seafood products available in North America.
Homarus enjoys an enviable reputation for producing superior quality utilizing innovative and uncompromising standards in the smoked seafood business.
Prepared with natural ingredients, using no preservatives, all smoked salmon is dry cured and cold smoked.
www.seaspecialties.com /homarus.htm   (182 words)

  
 Student-Faculty Publications. Biology at Purchase College   (Site not responding. Last check: 2007-10-20)
Ultrastructure of tegumental glands in the foregut and hindgut of the lobster (Homarus americanus).
Terminal arterioles of the digestive gland of the lobster (Homarus americanus) and their role in removal of foreign particles from the blood.
Connective tissue of the digestive gland of the lobster, Homarus americanus.
www.ns.purchase.edu /biology/studpub[1].htm   (1508 words)

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