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2 edition of Effect of sublethal metal pollutants on the fiddler crab Uca pugilator found in the catalog.

Effect of sublethal metal pollutants on the fiddler crab Uca pugilator

Winona B. Vernberg

Effect of sublethal metal pollutants on the fiddler crab Uca pugilator

by Winona B. Vernberg

  • 84 Want to read
  • 18 Currently reading

Published by Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, for sale by the National Technical Information Service in Narragansett, Rhode Island, Springfield, Va .
Written in English

    Subjects:
  • Metals -- Toxicology,
  • Crabs

  • Edition Notes

    Statementby W. B. Vernberge and P. J. DeCoursey ; Belle W. Baruch Institute for Marine Biology and Coastal Research
    SeriesEcological research series ; EPA-600/3-77-024
    ContributionsDeCoursey, P. J., joint author, United States. Environmental Protection Agency. Office of Research and Development, Environmental Research Laboratory (Duluth, Minn.), Belle W. Baruch Institute for Marine Biology and Coastal Research
    The Physical Object
    Paginationx, 59 p. :
    Number of Pages59
    ID Numbers
    Open LibraryOL14888866M

    1. The fiddler crabs of the genus Uca are able to endure abrupt and profound changes in the osmotic density of the water which they enter, passing from sea water into ordinary "fresh" water with impunity They are able to spend long periods out of the water by the aid of a mechanism by means of which they store up a quantity of water above the gills and aerate it directly by Cited by: 1. The non-target effects of temephos (as Abate 4E, % active ingredient) on fiddler crabs were examined on the salt marsh at Bombay Hook National Wildlife Refuge (NWR), near Dover, DE. Six x m plots were established; 3 were sprayed on 4 occasions at a rate of fl oz/acre ( kg active ingredient/ha) and 3 were controls. On each plot, marsh fiddler crab (Uca .

    In fiddler crab, Uca pugilator, enzyme activity was observed to decrease in the hepatopancreas but increased in abdominal muscle after 48 hr cadmium exposure. In the red swamp crayfish, Procambarus clarkii, exposed for 96 hr to cadmium, glutahione (GSH) level and GSH S-transferase activity deceased in more» the midgut. Abstract: While the fiddler crab, Uca pugnax, is a dominant macrofaunal species in coastal salt marshes along the Atlantic coast of the United States, little research has been done to characterize their population distributions in the Mid-Atlantic. With this region facing increased rates of sea level rise (SLR) due to geological land subsidence.

    Intraspecific variation in preserved specimens of the fiddler crabs Uca panacea and Uca pugilator (Decapoda: Ocypodidae) Luis E. A. Bezerra 1, 2 & Petrônio A. Coelho 1 1 Programa de Pós-Graduação em Oceanografia, Departamento de Oceanografia, Universidade Federal de . Uca pugilator, the sand fiddler crab is a species of fiddler crab that is found from Massachusetts to the Gulf of Mexico. It lives in burrows in coastal and estuarine mud-flats, and can be extremely abundant. It can be differentiated from its congeners U. pugnax and U. minax by the smoothness of the inside of its claws. One claw is larger than the other, and can be much larger than the .


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Effect of sublethal metal pollutants on the fiddler crab Uca pugilator by Winona B. Vernberg Download PDF EPUB FB2

Effect of sublethal metal pollutants on the fiddler crab Uca pugilator. Narragansett, R.I.: Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; Springfield, Va.: For sale by the National Technical Information Service, (OCoLC) Material Type.

@article{osti_, title = {Effect of cadmium chloride on the distal retinal pigment cells of the fiddler crab, Uca pugilator}, author = {Reddy, P S and Fingerman, M and Nguyen, L K and Obih, P}, abstractNote = {Crustaceans have two sets of pigmentary effectors, chromatophores and retinal pigment cells.

Retinal pigments control the amount of light striking the rhabdom, the. The polycyclic aromatic hydrocarbon, naphthalene, inhibited the melanin dispersion, which normally occurs in the fiddler crab, Uca pugilator, during the dark phase of its circadian rhythm of color change. Naphthalene produced this inhibition no matter whether the melanin was fully aggregated or more or less dispersed at the time of initial by: THE INFLUENCE OF TEMPERATURE AND SALINITY ON THE TOXICITY OF CADMIUM TO THE FIDDLER CRAB, UCA PUGILATOR JAMES O'HARA' ABSTRACT The concentrations of cadmium lethal to the fiddler crab, Uca pugilator, were determined for various environmental regimes of temperature and salinity.

Ecological and life history aspects of the red-jointed fiddler crab: UCA Minas (Le Conted), region of Solomons Island, Maryland / (Solomons Island, MD: Chesapeake Biological Laboratory, ), by Ellen H. Gray (page images at HathiTrust; US access only) The grapsoid crabs of America.

The effects of cadmium exposure on the color change system of the fiddler crab, Uca pugilator, were were either immersed in 10 ppm cadmium chloride solutions or injected with μg cadmium/g body by: Butler, T.A., and M.

Fingerman () The effect of P chlorophenylalanine on the concentration of 5-hydroxytryptamine in eyestalks of the fiddler crab Uca pugilator. American Zoologist 24(3)A. Butler, T.A., and M. Fingerman () Effects of dopamine and neuropeptides on the isolated eyestalk of the fiddler crab.

MERCURY ON SURVIVAL AND METABOLISM OF THE ADULT FIDDLER CRAB, UCA PUGILATOR1 W inona B. Vernberg and John Vernberg3 ABSTRACT Gili tissues of fiddler crab, Uca pugilator, were the major site of mercury concentration; lesser amounts accumulated in the hepatopancreas and green gland.

Very small amounts were found in the carapace and muscle. Uca pugilator (BOX ) is a semi-terrestrial ocypodid crab that inhabits intertidal sandflats on the Atlantic and Gulf of Mexico coasts of the United States from Cape Cod to southeastern Texas (Crane, ).

Crabs live in and around burrows that. Abstract. The distribution of fiddler crab (Uca spinicarpa andU. longisignalis) burrows in coastal marsh habitats is described, and the influence of substratum characteristics on the distributions of each is densities were higher in vegetated areas than in sparsely vegetated and nonvegetated areas.

Elevation and landward distance from shoreline (water's edge) also co Cited by:   Molecular evidence for color discrimination in the Atlantic sand fiddler crab, Uca pugilator. Rajkumar P(1), Rollmann SM, Cook TA, Layne JE.

Author information: (1)Department of Biological Sciences, University of Cincinnati, Cincinnati, OhioUSA. Fiddler crabs are intertidal brachyuran crabs that belong to the genus by:   The effects of sublethal concentrations of mercury in combination with stressful temperature-salinity regimes were considered for larval development of the fiddler crab Uca pugilator (Bosc.).

Control organisms were compared to those treated with ppb Hg for the following suboptimal regimes: 30°C, 30 ‰ S; 30°C, 20 ‰ S; 20°C, 30 ‰ S, and 20°C, 20 ‰ S. Cited by: After multiple autotomy, fiddler crabs (Uca pugilator) were exposed to a variety of environmental variables, during which time limb bud growth was measured and time of ecdysis was noted.

The presence of other crabs retarded limb regeneration in males exposed to light. Light retarded limb regeneration in males in a group.

Light and grouping had no effect on regeneration in by: The effect of cadmium chloride (1 mg/L) on oocyte growth of the fiddler crab, Uca pugilator, was studied during the slow vitellogenesis phase of ovarian maturation of this carb.

PAPERS PUBLISHED BY ASSOCIATES OF THE BELLE W. BARUCH INSTITUTE FOR MARINE BIOLOGY AND COASTAL RESEARCH. BWBIMBCR Contribution Number. Vernberg, F.J. and W.B. Vernberg. Sublethal and Chronic Effects of Pollutants on Freshwater Fish (Fishing News Books) [Muller, R., Lloyd, R.] on *FREE* shipping on qualifying offers.

Sublethal and Chronic Effects of Pollutants on Freshwater Fish (Fishing News Books). Molecular evidence for color discrimination in the Atlantic sand fiddler crab, Uca pugilator Article (PDF Available) in Journal of Experimental Biology (Pt 24).

ABSTRACT. The fiddler crabs Uca panacea Novak & Salmon, and Uca pugilator (Bosc, ) are closely related North American species that are sympatric along the north coast of Gulf of Mexico.

Since U. panacea was described, there has been confusion in the identification these two species. Morphological differences between these two fiddlers have been pointed out in. Research Article. Melatonin and locomotor activity in the fiddler crab.

Define sublethal. sublethal synonyms, sublethal pronunciation, sublethal translation, English dictionary definition of sublethal.

adj. Less than lethal: sublethal dosages. suble′thally adv. adj not strong enough to kill adj. almost lethal or fatal: a sublethal dose of poison. anthropogenic activity. This study supports the notion that Uca pugilator could be a valuable bioindicator of estuarine health, and shows that population density, carapace widths, and mating behavior of Uca pugilator are influenced by anthropogenic activity.

Future studies should use Uca pugilator as a bioindicator of estuarine health.The purpose of this study was to test the feasibility of utilizing the sand fiddler crab Uca pugilator as a bioindicator of anthropogenic impact.

Three 30 m sq. sites (each divided into three subsites) were selected in Beaufort, South Carolina, as examples of different types and levels of human impact (a relatively unimpacted reference site, a Cited by: 3.Environmental Research Laboratory (Duluth, Minn.): Effect of sublethal metal pollutants on the fiddler crab Uca pugilator / (Narragansett, Rhode Island: Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; Springfield, Va.: for sale by the National Technical Information Service, ), also.