Metal Concentrations in Tissues of American Lobsters (<i>Homarus americanus</i>, Milne-Edwards) with Epizootic Shell Disease

LeBlanc, Lawrence A.; Prince, Deanna L.

doi:10.2983/035.031.0214

Cited by 12 publications

(10 citation statements)

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“…Besides, Hg enrichment of sediments and biota in the Northern Adriatic is predominantly linked to continuous discharge from nearby industrialized zones and large Hg mining sites (Kotnik et al, 2015). Levels of As were higher than in digestive gland of crustaceans from the Atlantic (Barrento et al, 2009;Leblanc and Prince, 2012) and the Pacific (Lewtas et al, 2014;Metian et al, 2010). A relatively high amount of total As was already reported for N. norvegicus digestive gland from the same Adriatic area (Sekulić et al, 1993).…”

Section: °Cmentioning

confidence: 98%

“…norvegicus (Canli and Furness, 1993a) and lobsters H. gammarus and H. americanus (Barrento et al, 2009;Leblanc and Prince, 2012) from unpolluted sites of Atlantic coast. Similarly, low enrichment of off-shore sediments and generally decreasing contamination trend for Cu and Zn in Kvarner Bay (Cukrov et al, 2011(Cukrov et al, , 2014 could explain the lack of correlation between these metals and MTs content in N. norvegicus.…”

Section: °Cmentioning

confidence: 99%

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A baseline study of the metallothioneins content in digestive gland of the Norway lobster Nephrops norvegicus from Northern Adriatic Sea: Body size, season, gender and metal specific variability

Cenov¹,

Perić

Glad³

et al. 2018

Marine Pollution Bulletin

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Metallothioneins content was investigated in digestive gland of two wild-caught Norway lobster Nephrops norvegicus populations from the Northern Adriatic Sea, in relation to body size, season and gender. Concomitant accumulation of cadmium, mercury, arsenic, lead, chromium and manganese, reactive oxygen species concentration and energy reserves in digestive gland were also assessed. While differences between genders were not recorded, metallothioneins content seasonal trends were affected by body size. Most of parameters displayed inconsistent trends across sampling sites. Significant correlation between metallothioneins content and cadmium, arsenic and mercury concentrations was recorded only for larger lobsters. A negative correlation of reactive oxygen species concentration and metallothioneins content was observed for small, but not large lobsters. Energy reserves, in particular lipids, could considerably influence biochemical and chemical parameters variations. The present results constitute the essential baseline for future studies aimed at evaluating the N. norvegicus health in relation to metal contamination of coastal sediments.

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Section: °Cmentioning

confidence: 98%

Section: °Cmentioning

confidence: 99%

A baseline study of the metallothioneins content in digestive gland of the Norway lobster Nephrops norvegicus from Northern Adriatic Sea: Body size, season, gender and metal specific variability

Cenov¹,

Perić

Glad³

et al. 2018

Marine Pollution Bulletin

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“…Doughtie et al (1983) and Andersen et al (2000) have associated metals with shell disease in crustaceans. Recent research on the distribution and levels of alkylphenols and heavy metals in the hepatopancreas and other tissues of lobsters from SNE, however, failed to find a clear relationship between heavy metals and selected alkylphenols and ESD (Jacobs et al 2012, LeBlanc & Prince 2012. Researchers were not able to measure levels of alkylphenols in lobster shell due to technical challenges (Jacobs et al 2012).…”

Section: Presentmentioning

confidence: 99%

Epizootic shell disease in American lobsters Homarus americanus in southern New England: past, present and future

Castro

Cobb²,

Gomez‐Chiarri³

et al. 2012

Dis. Aquat. Org.

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The emergence of epizootic shell disease in American lobsters Homarus americanus in the southern New England area, USA, has presented many new challenges to understanding the interface between disease and fisheries management. This paper examines past knowledge of shell disease, supplements this with the new knowledge generated through a special New England Lobster Shell Disease Initiative completed in 2011, and suggests how epidemiological tools can be used to elucidate the interactions between fisheries management and disease. KEY WORDS: Epizootic shell disease · Lobster · Epidemiology Resale or republication not permitted without written consent of the publisherContribution to DAO Special 6 'Disease effects on lobster fisheries, ecology, and culture'

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“…The lobsters analyzed were a subset of 120 animals of varying disease states that were collected as a part of the Lobster Shell Disease Research Initiative and used to support a collaborative research effort called the 100 Lobsters Project (Shields et al 2012a). The results of the other research groups that make up the Lobster Shell Disease Research Initiative and that worked on the 100 Lobsters Project are reported elsewhere in this special issue (LeBlanc & Prince 2012, Shields et al 2012a, Shields et al 2012b). Here we report the altered expression of several genes in lobsters showing signs of ESD.…”

Section: Introductionmentioning

confidence: 99%

Gene Expression in American Lobster (Homarus americanus) with Epizootic Shell Disease

Tarrant

Franks

Verslycke

2012

Journal of Shellfish Research

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Epizootic shell disease (ESD) has been reported widely in American lobster (Homarus americanus, Milne Edwards) in southern New England. The appearance of irregular, deep lesions-characteristic of ESD-has been associated previously with elevated levels of ecdysteroids and premature molting, but the underlying molecular and physiological changes associated with ESD remain poorly understood. Previously, we identified several genes, including arginine kinase and hemocyanin, that were expressed differentially in lobsters exhibiting signs of ESD (diseased) versus those lobsters exhibiting no signs of ESD (assumed healthy), and quantified their expression. In this study, we extend these findings and measure expression of a suite of 12 genes in tissues from 36 female lobsters of varying disease condition. In addition, molt stage is evaluated as a possible confounding factor in the expression of the selected genes. The expression of several genes changed significantly with disease stage. Arginine kinase expression decreased significantly in thoracic muscle of lobsters with signs of ESD. Ecdysteroid receptor expression was elevated significantly in both muscle and hepatopancreas of lobsters with signs of ESD. CYP45, a cytochrome P450 form that was shown previously to covary with ecdysteroid levels and to be inducible by some xenobiotics, showed significantly increased expression in hepatopancreas of lobsters with signs of ESD. Together, these results demonstrate that the expression of several genes is altered in lobsters showing signs of ESD, even when accounting for variation in molt stage. Given the observed changes in ecdysteroid receptor, arginine kinase, and CYP45 expression, further investigations of the association, if any, between molting, muscular function and xenobiotic metabolism and ESD are warranted.

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Metal Concentrations in Tissues of American Lobsters (Homarus americanus, Milne-Edwards) with Epizootic Shell Disease

Cited by 12 publications

References 43 publications

A baseline study of the metallothioneins content in digestive gland of the Norway lobster Nephrops norvegicus from Northern Adriatic Sea: Body size, season, gender and metal specific variability

A baseline study of the metallothioneins content in digestive gland of the Norway lobster Nephrops norvegicus from Northern Adriatic Sea: Body size, season, gender and metal specific variability

Epizootic shell disease in American lobsters Homarus americanus in southern New England: past, present and future

Gene Expression in American Lobster (Homarus americanus) with Epizootic Shell Disease

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