First record of butyltin body burden and imposex status in Hexaplex trunculus (L.) along the Tunisian coast

Lahbib, Youssef; Abidli, Sami; Chiffoleau, Jean-François; Averty, Bernard; Menif, Najoua Trigui El

doi:10.1039/b822102b

Cited by 38 publications

(22 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Imposex studies in the Mediterranean Sea have been mainly restricted to populations of the banded murex H. trunculus (Axiak et al 1995(Axiak et al , 2003El Hamdani et al 1998; Martoja and Bouquegneau 1988;Rilov et al 2000;Terlizzi et al 1998Terlizzi et al , 1999Trigui El Menif et al 2006;Lahbib et al 2007Lahbib et al , 2008aLahbib et al , b, 2009Abidli et al 2009a). The purple dye murex (B. brandaris) has a wide distribution in the Mediterranean Sea and on the adjacent Atlantic coast, from Morocco to Portugal (Poppe and Goto 1991).…”

Section: Introductionmentioning

confidence: 95%

Imposex and butyltin concentrations in Bolinus brandaris (Gastropoda: Muricidae) from the northern Tunisian coast

Abidli

Lahbib

Menif

2010

Environ Monit Assess

Self Cite

View full text Add to dashboard Cite

The imposex incidence and butyltin concentration i.e. tributyltin with its di- and mono-substituted metabolites were investigated in the muricid Bolinus brandaris sampled from two sites on the northern Tunisian coast (the Lagoon of Bizerta and the small Gulf of Tunis). Both populations had imposex, with stages of imposex development varying between VDS 1 and VDS 4.3. All imposex indices (imposex frequency (I %), female penis length, female vas deferens length, vas deferens sequence index, relative penis length index, and vas deferens length index) were significantly higher in snails from the Bizerta lagoon. Butyltins were detected in the whole tissues of both sexes from the two sites. TBT levels were higher in gastropods collected from the lagoon of Bizerta (12.65 ±1.48 ng Sn g( - 1) dw in female and 15.21 ±1.13 ng Sn g( - 1) dw in male) than in individuals from the Gulf of Tunis (10.71 ±1.26 ng Sn g( - 1) dw in female and 11.65 ±1.63 ng Sn g( - 1) dw in male), corroborating the data of imposex analysis. These results confirmed that B. brandaris could be used as a bioindicator species of butyltin pollution in the studied areas. In addition, this study provided baseline data that could serve for long-term monitoring of TBT pollution in Tunisia, since legislation to reduce the use of TBT-based antifouling paints has not been introduced yet.

show abstract

Section: Introductionmentioning

confidence: 95%

Imposex and butyltin concentrations in Bolinus brandaris (Gastropoda: Muricidae) from the northern Tunisian coast

Abidli

Lahbib

Menif

2010

Environ Monit Assess

Self Cite

View full text Add to dashboard Cite

show abstract

“…Finally, the banded murex displayed female-biased sex ratios in larger size classes, corroborating findings reported for This predominance of females among larger and older individuals might be due to differential growth between sexes (particularly after reaching sexual maturity), with females allocating more energy towards growth than for reproduction. In addition, in gastropod populations that are highly affected by imposex, which is the case for H. trunculus from the Bizerte lagoon (Lahbib et al 2008a(Lahbib et al ,b, 2009), reduced female reproductive effort generally leads to increased somatic growth (Axiak et al 1995, Rilov et al 2000. The gametogenic cycle of Hexaplex trunculus apparently comprises an extended period of gonadal activity.…”

mentioning

confidence: 99%

Reproductive cycle and biochemical composition of Hexaplex trunculus (Gastropoda: Muricidae) from Bizerte lagoon, northern Tunisia

Gharsallah¹,

Vasconcelos²,

Zamouri-Langar³

et al. 2010

Aquat. Biol.

View full text Add to dashboard Cite

This study investigates the reproductive cycle, size at first sexual maturity and biochemical composition of Hexaplex trunculus from the Bizerte lagoon (northern Tunisia). Overall, females predominated over males, resulting in an unbalanced sex ratio of 1.2:1. Males dominated in the smaller size classes (< 40 mm shell length, SL), sex ratios were balanced at the 40 to 50 mm SL range, and females dominated in the larger size classes (> 50 mm SL). The gonad developmental stages and the gonadosomatic index (GSI) indicated that H. trunculus apparently has an annual reproductive cycle with extended periods of gonadal activity. In both sexes, examination of the appearance of the gonads showed that gamete release occurred mainly from March to May (with an apparent spawning between March and April), followed by a period of empty gonads between June and August. Sexual maturity occurred at smaller sizes in males (SL 50 = 41.02 mm SL) than in females (SL 50 = 50.47 mm SL). The contents of protein, lipids and carbohydrates were invariably greater in the gonads than in the foot, confirming the key role of the reproductive tissues in energetic storage. The monthly variation in protein, lipids and carbohydrates in the gonads followed the oscillation in the relative proportion of developed gonads and in the GSI, reflecting energetic mobilisation during maturation and spawning. Overall, the data gathered in this study constitutes valuable baseline information for making preliminary recommendations to the fishing community targeting H. trunculus in the Bizerte lagoon. Further studies and more solid data on the reproductive cycle of the species are required before definitive management measures for this locally important artisanal fishery can be proposed. KEY WORDS: Reproductive cycle · Spawning season · Size at sexual maturity · Biochemical composition · Fisheries management · Hexaplex trunculus · Muricidae · Bizerte lagoon Resale or republication not permitted without written consent of the publisherAquat Biol 10: 155-166, 2010 156 the Atlantic is mainly restricted to the coasts of Portugal and Morocco, and the Madeira and Canary archipelagos (Poppe & Goto 1991, Houart 2001). This species is harvested for human consumption and has commercial value in several Mediterranean countries such as Spain, Italy, Croatia, Cyprus and Turkey (Fischer et al. 1987), as well as along the Atlantic coasts of Spain (mainly in Andalusia) (Anon 2001) and Portugal (mainly in Algarve) (Vasconcelos et al. 2008a). In the Bizerte lagoon (northern Tunisia), the banded murex is the target species of an artisanal fishery using baited traps, but is also a bycatch species in fishing nets (Gharsallah et al. 2004). The banded murex constitutes a locally important fishing resource in the Bizerte lagoon, with estimated monthly catches of ~1.8 tons between 1999 (I. H. Gharsallah unpubl. data), but the fishery lacks specific regulations (e.g. minimum landing size, closed seasons in fishing activity).While some studies on the reproductive biology an...

show abstract

“…30-115 years before the use of TBT have found. These observations suggest that factors other than TBT could be implicated on the development of imposex (Lahbib et al, 2009). (Zernov, 1913) which domestic waste water are man-made eutrophicators.…”

Section: Discussionmentioning

confidence: 90%

Sexual differentiation and variations sexual characteristics <i>Rapana venosa</i> (Valenciennes, 1846)

Bondarev¹

2015

ijms

View full text Add to dashboard Cite

For the first time provides photographic images, and discussed a wide range of normal and abnormal colors of gonads Rapana venosa from the Black Sea. It has been shown that some abnormal variants of gonads color are becoming the norm, at least for some contemporary populations of Crimea. The dependence of the change in color gonads with age of the rapa-whelk is shown. Attention is paid to the color variations of the digestive gland and their relationship to the color of gonads. It is assumed that specified color changes are evidence of environmentally caused of the species' form-generation in the evolution process. The species intersexuality and absence of imposex females in the R. venosa Crimean populations is discussed.

show abstract

First record of butyltin body burden and imposex status in Hexaplex trunculus (L.) along the Tunisian coast

Cited by 38 publications

References 26 publications

Imposex and butyltin concentrations in Bolinus brandaris (Gastropoda: Muricidae) from the northern Tunisian coast

Imposex and butyltin concentrations in Bolinus brandaris (Gastropoda: Muricidae) from the northern Tunisian coast

Reproductive cycle and biochemical composition of Hexaplex trunculus (Gastropoda: Muricidae) from Bizerte lagoon, northern Tunisia

Sexual differentiation and variations sexual characteristics <i>Rapana venosa</i> (Valenciennes, 1846)

Contact Info

Product

Resources

About