Imposex in Lepsiella vinosa from Southern Australia

Nias, Deborah; McKillup, Steve; Edyvane, Karen

doi:10.1016/0025-326x(93)90185-m

Cited by 83 publications

(40 citation statements)

References 14 publications

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“…Unlike the earlier reports, however, it was found that there was a seasonally varying baseline level of imposex in uncontaminated populations, indicating either that environmental stressors other than TBT induced imposex [as was found by Nias et al (1993) for another gastropod] or that a certain percentage of imposex can be a natural phenomenon for dogwhelk populations. The degree of imposex was different from the 2 laboratory studies cited above.…”

Section: Discussioncontrasting

confidence: 86%

“…This suggests either that the snails were 'contaminated' before this time and that the cause of contamination ceased so that the imposex condition of the snails did not worsen, or that the snails exhibit a 'natural' level of pseudohermaphrodism (Bryan et al 1986). Other factors, however, such as copper, paint matrix and environmental stress, have been found to induce imposex in the gastropod Lepsiella vinosa (Nias et al 1993).…”

Section: Discussionmentioning

confidence: 99%

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Sublethal effects of tributyltin oxide on the dogwhelk Nucella lapillus

Davies¹,

Harding²,

Bailey³

et al. 1997

Mar. Ecol. Prog. Ser.

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ABSTRACT. The sublethal effects of tributyltin oxide (TBT) at concentrations of 2 to 128 ng 1-' in sea water on imposex development, weight, activity and feeding rate of the adult common dogwhelk Nucella lapillus (L.) were investigated over 12 mo under conditions conforming to the UK Good Laboratory Practice standard. TBT promoted irnposex development, with a no-effect concentration of c 2 ng I-' for exposure of 6 mo or more. The degree of imposex d~d not exceed levels w h~c h caused sterility in any treatment group. Low levels of lmposex in controls showed seasonal changes in intensity. Seasonal patterns were overridden by 2 ng TBT 1-' or more. The low numbers of mortalities observed were not related to TBT concentration. The activity of dogwhelks (tendency to climb the tank walls) varied seasonally, reflecting natural behaviour patterns of wild populations. TBT exposure had no effect on this activity The feeding rate (predation on mussels Mytilus edulis) showed marked seasonal vanations in all tanks, but there was no correlation with TBT exposure. Exposure to TBT had no effect on the tissue weight of male dogwhelks, but the body weight of females was negatively correlated with TBT after 12 mo exposure. Mean bioconcentration factors (water to tissue of dogwhelks) ranged from 7400 to 25000, and decreased with increasing TBT exposure concentration. It is est~mated that the feed mussels accounted for approxinlately 40% of the TBT accumulated by the dogwhelks.

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Section: Discussioncontrasting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Sublethal effects of tributyltin oxide on the dogwhelk Nucella lapillus

Davies¹,

Harding²,

Bailey³

et al. 1997

Mar. Ecol. Prog. Ser.

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“…However the amounts stored in the sediments, those from early applications and a possible illegal use render these compounds still available to organisms. Even though organotin compounds, were considered the main cause of imposex, recently, hypotheses about the involvement of other factors have been suggested (Garaventa et al, 2006b); Nias et al (1993) observed that copper and environmental stress can cause imposex in Lepsiella vinosa (Lamarck, 1822); Evans et al (2000) showed that nonylphenol promotes the phenomenon in N. lapillus. Recently an epidemiologic study conducted by Maran et al (2006) suggested that organochlorine pesticides, polychlorinated biphenyls and, at a lower extent, polycyclic aromatic hydrocarbons can have a role in the imposex development.…”

Section: Introductionmentioning

confidence: 99%

Imposex levels and concentrations of organotin compounds (TBT and its metabolites) in Nassarius nitidus from the Lagoon of Venice

Pavoni

Centanni

Valcanover

et al. 2007

Marine Pollution Bulletin

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Specimens of Nassarius nitidus were collected in seven stations of the Venice Lagoon to assess the levels of tributyltin (TBT) and its metabolites monobutyltin and dibutyltin in the tissues and monitor their effect on organisms, in particular the phenomenon of imposex (superimposition of male sexual characteristics on females). The following values of population indices were found: vas deferens sequence: 1.2 ± 0.7-4.0 ± 0.5; relative penis length: 6-47%. The least impacted station was situated in the northern part of the Lagoon, where females without imposex were found and Butyltin (BuTs) concentrations in the organisms (average sum of BuTs = 43 ± 14 ng Sn g À1 w.) were significantly lower than in the other stations (range of average sum of BuTs: 101 ± 22-217 ± 27 ng Sn g À1 d.w.). Population indices were found to be related to the TBT content in the tissues. In particular VDSI had a significant logarithmic correlation: r = 0.95, n = 8, p < 0.05.

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“…For example, an increase in the abundance of the polychaete Capitella capitata (Fabricius, 1780) has been shown to indicate pollution (probably increased nitrates and phosphates) from domestic outfalls (Filice, 1954;Kitamori andFunae, 1959, 1960;Reish, 1959;Kitamori, 1963;Bellan, 1967). Imposex in marine gastropods is an indicator of the antifouling agent Tributyltin (Bright and Ellis, 1989;Stickle et al, 1990;Nias, 1991;Nias et al, 1993). Filter feeding oysters and mussels are often used as indicators of lipid-soluble pollutants in the marine environment (Riedel et al, 1995;Chen et al, 1996;Al-Madfa et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Marine hermit crabs as indicators of freshwater inundation on tropical shores

Dunbar¹,

Coates²,

Kay³

2003

MMV

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The marine hermit crabs, Clibanarius taeniatus (H. Milne-Edwards, 1848) and C. virescens (Krauss, 1843) are common rocky intertidal species along the coast of Queensland, Australia. Laboratory experiments in dilute (8‰) seawater at 15°, 25°and 35°C over an extended period (up to 77 h) showed that C. taeniatus had significantly better survival than C. virescens. In extended exposure to a low salinity, estuarine environment C. taeniatus also survived significantly better than C. virescens. Repeated sampling at selected sites revealed that a site with no freshwater influence maintained a low percentage of C. taeniatus and high percentage of C. virescens, while at a site influenced by regular, low level freshwater runoff, the percentage of C. taeniatus remained high. A survey of the Queensland coast, showed that C. virescens tended to be more dominant on open coasts uninfluenced by freshwater, while C. taeniatus tended to be more abundant in areas influenced by freshwater. These two species therefore are a convenient indicator system for the influence of freshwater on tropical intertidal rocky shores and may therefore constitute an important management tool in areas experiencing coastal development with concomitant storm water runoff into marine habitats.

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Imposex in Lepsiella vinosa from Southern Australia

Cited by 83 publications

References 14 publications

Sublethal effects of tributyltin oxide on the dogwhelk Nucella lapillus

Sublethal effects of tributyltin oxide on the dogwhelk Nucella lapillus

Imposex levels and concentrations of organotin compounds (TBT and its metabolites) in Nassarius nitidus from the Lagoon of Venice

Marine hermit crabs as indicators of freshwater inundation on tropical shores

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