Cuticular lesions induced in grass shrimp exposed to hexavalent chromium

Doughtie, Daniel G.; Conklin, Philip J.; Rao, K. Ranga

doi:10.1016/0022-2011(83)90067-8

Cited by 16 publications

(7 citation statements)

References 14 publications

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“…It occurs in lobsters held at high stocking density in long-term confinement (Smolowitz et al 1992). This is similar to classical shell disease in crustaceans, which is associated with poor water quality from pollutants such as sewage sludge, dredge spoils (Gopalan and Young 1975;Young and Pearce 1975;Ziskowski et al 1996), mining wastes (Gemperline et al 1992;Weinstein et al 1992), organic debris (Morado et al 1988), and possibly heavy metals (Doughtie et al 1983;Andersen et al 2000).…”

Section: Introductionmentioning

confidence: 95%

Complex etiologies of emerging diseases in lobsters (Homarus americanus) from Long Island Sound

Shields

2013

Can. J. Fish. Aquat. Sci.

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Several diseases have recently emerged in lobsters (Homarus americanus) from Long Island Sound (LIS). Various stressors have been implicated as contributory factors, including increased bottom temperatures, extensive eutrophication with commensurate hypoxia, storm-induced thermal destratification, possible exposures to pesticides and metals, and fishery-induced stressors. Such stressors increase host susceptibility by weakening the host immune defenses and act to increase the transmission and severity of pathogens. The lobster mortality in western LIS in 1999 was linked to Neoparamoeba pemaquidensis, but a complex of stressors resulted in outright mortality from hypoxia or consequent immune suppression that increased susceptibility to the ameba. Similar stressors have been implicated in the etiology of epizootic shell disease and calcinosis. The role of environmental stressors has been hard to delineate, but recent declines in landings indicate that epizootic shell disease has had a negative impact on the lobster population in LIS. Calcinosis, blindness, and hepatopancreatitis are indicators of continued exposure to anthropogenic stressors, but their etiologies remain undetermined. More research is needed to understand emerging diseases, their complex etiologies, and their effects on the lobster population.Résumé : Plusieurs maladies sont récemment apparues chez les homards (Homarus americanus) du Long Island Sound (LIS). Plusieurs facteurs de stress ont été mis en cause comme facteurs contributifs, y compris l'augmentation des températures du fond de l'eau, une vaste eutrophication avec hypoxie à l'avenant, une déstratification thermique induite par les tempêtes, des expositions possibles à des pesticides et métaux et des facteurs de stress associés à la pêche. De tels facteurs de stress accroissent non seulement la susceptibilité des hôtes en affaiblissant leurs défenses immunitaires, mais également la transmission et l'activité des pathogènes. Si la mortalité des homards dans la partie occidentale du LIS en 1999 a été reliée à Neoparamoeba pemaquidensis, un complexe de facteurs de stress a entraîné une mortalité directe des suites de l'hypoxie ou de l'immunosuppression en découlant, qui se sont traduites par une susceptibilité accrue aux amibes. Des facteurs de stress semblables ont été mis en cause dans l'étiologie de l'épizootie de la carapace et de la calcinose. S'il s'est avéré difficile de cerner le rôle des facteurs de stress environnementaux, les baisses récentes des débarquements indiquent que l'épizootie de la carapace a eu un impact négatif sur la population de homards du LIS. La calcinose, la cécité, et l'hépatopancréatite sont autant d'indicateurs d'une exposition soutenue à des facteurs de stress d'origine humaine, mais leurs étiologies demeurent à définir. D'autres travaux sont nécessaires pour comprendre ces maladies émergentes, leurs étiologies complexes et leurs effets sur la population de homards. [Traduit par la Rédaction]

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Section: Introductionmentioning

confidence: 95%

Complex etiologies of emerging diseases in lobsters (Homarus americanus) from Long Island Sound

Shields

2013

Can. J. Fish. Aquat. Sci.

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“…Pollutants (i.e. sewage sludge, dredge spoils, heavy metals, organic debris) are also known to be associated with the syndrome (Gopalan & Young, 1975;Young & Pearce, 1975;Couch, 1983;Morado et al, 1988;Gemperline et al, 1992;Weinstein et al, 1992;Ziskowski et al, 1996), and in at least two cases, heavy metals, and not chitinoclastic bacteria, have been implicated in the aetiology of a similar syndrome in crustaceans (Doughtie et al, 1983;Andersen et al, 2000).…”

Section: Shell Diseasementioning

confidence: 99%

Pathogens, Parasites and Other Symbionts

Shields¹,

Stephens

Jones

2006

Lobsters: Biology, Management, Aquaculture and Fisheries

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“…There are relatively a few studies which have clearly demonstrated the impact of chromium on crustacea and their ability to concentrate the metal. Data were obtained from the barnacle Balanus amphitrite (Barbaro et al 1978), the crab Podophthalmus vigil (Sather 1967), the grass shrimp Palaemonetes pugio (Fales 1978, Doughtie et al 1983, Doughtie & Rango Rao 1984; the two last papers demonstrate the structural and ultrastructural degenerative changes induced by hexavalant chromium in tissues such as the digestive gland, the gills and the mid gut. From our present study, no ultrastructural abnormalities were observed in nuclei and cellular organelles of gills, digestive gland and muscle.…”

Section: Discussionmentioning

confidence: 99%

Cellular and subcellular localization of chromium in the crab Liocarcinus puber (Brachyrhyncha) by transmission electron microscopy, secondary ion mass spectrometry and electron microprobe analysis

Chassard-Bouchaud

Hubert²,

Escaig

et al. 1995

Biometals

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The swimming crab Liocarcinus puber (Crustacea Brachyrhyncha) was exposed for 2 weeks to CrCI3 (chromium occurs principally in the trivalent state in the natural environment). The gills, digestive gland and muscle were examined by several analytical techniques for cellular and subcellular localization of chromium. The techniques applied were secondary ion mass spectrometry (ion microscopy and ion microprobe analysis) associated with photon microscopy and X-ray spectrometry (electron microprobe analysis) together with transmission electron microscopy.The digestive gland was found to be free of chromium, whereas chromium was adsorbed onto the gill exoskeleton. The muscle was the only tissue with intracellular electron-dense precipitates with no surrounding membrane. The metal was detected in the heterophagic vacuoles of amoebocytes where it was associated with phosphorus and trapped in an unsoluble form. Mechanisms of chromium cellular and subceilular metabolism were compared between crabs and other aquatic organisms. L. puber does not appear to be a suitable bioindicator of chromium pollution because of molting and its low chromium bioaccumulation capability.

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Cuticular lesions induced in grass shrimp exposed to hexavalent chromium

Cited by 16 publications

References 14 publications

Complex etiologies of emerging diseases in lobsters (Homarus americanus) from Long Island Sound

Complex etiologies of emerging diseases in lobsters (Homarus americanus) from Long Island Sound

Pathogens, Parasites and Other Symbionts

Cellular and subcellular localization of chromium in the crab Liocarcinus puber (Brachyrhyncha) by transmission electron microscopy, secondary ion mass spectrometry and electron microprobe analysis

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