Two-way sex change in the endangered limpet<i>Patella ferruginea</i>(Mollusca, Gastropoda)

Guallart, Javier; Calvo, Marta; Acevedo, Iván; Templado, José

doi:10.1080/07924259.2012.754794

Cited by 37 publications

(66 citation statements)

References 25 publications

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“…, ; Guallart et al. ), and Patella rustica (Bacci ). In most of the cases, knowledge of sex‐change patterns comes mainly from the interpretation of sex with size data from field collections, although sex change has been tracked in individual P. vulgata (Le Quesne and Hawkins ) and P. ferruginea (Guallart et al.…”

Section: Methodsmentioning

confidence: 99%

“…are able to undergo sex change between consecutive spawning seasons (Le Quesne and Hawkins ; Guallart et al. ). Sex reversal (sex change back from female to male) has also been reported for P. vulgata, where one of eight females reverted to males during a 12‐month period (Le Quesne and Hawkins ), while for P. ferruginea two of 21 females were documented to be male on the subsequent spawning season (Guallart et al.…”

Section: Introductionmentioning

confidence: 99%

“…As in some fish species, it could be the case that P. vulgata females could also arise from immature neuters that bypassed the male phase (Guallart et al. ; see Fennessy and Sadovy ; de Girolamo et al. ; Allsop for the early maturers concept).…”

Section: Introductionmentioning

confidence: 99%

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The influence of simulated exploitation on Patella vulgata populations: protandric sex change is size‐dependent

Borges

Hawkins

Crowe

et al. 2016

Ecology and Evolution

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Grazing mollusks are used as a food resource worldwide, and limpets are harvested commercially for both local consumption and export in several countries. This study describes a field experiment to assess the effects of simulated human exploitation of limpets Patella vulgata on their population ecology in terms of protandry (age‐related sex change from male to female), growth, recruitment, migration, and density regulation. Limpet populations at two locations in southwest England were artificially exploited by systematic removal of the largest individuals for 18 months in plots assigned to three treatments at each site: no (control), low, and high exploitation. The shell size at sex change (L 50: the size at which there is a 50:50 sex ratio) decreased in response to the exploitation treatments, as did the mean shell size of sexual stages. Size‐dependent sex change was indicated by L 50 occurring at smaller sizes in treatments than controls, suggesting an earlier switch to females. Mean shell size of P. vulgata neuters changed little under different levels of exploitation, while males and females both decreased markedly in size with exploitation. No differences were detected in the relative abundances of sexual stages, indicating some compensation for the removal of the bigger individuals via recruitment and sex change as no migratory patterns were detected between treatments. At the end of the experiment, 0–15 mm recruits were more abundant at one of the locations but no differences were detected between treatments. We conclude that sex change in P. vulgata can be induced at smaller sizes by reductions in density of the largest individuals reducing interage class competition. Knowledge of sex‐change adaptation in exploited limpet populations should underpin strategies to counteract population decline and improve rocky shore conservation and resource management.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The influence of simulated exploitation on Patella vulgata populations: protandric sex change is size‐dependent

Borges

Hawkins

Crowe

et al. 2016

Ecology and Evolution

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“…The sex reversal could be done once in the life (protandry or protogyny) (Giese andPearse 1974, Charnov 1979) or several times (fl ip-fl opping) (Collin 2013). The latter, named sequential two-way sex change, or reverse sequential hermaphroditism (alternating hermaphroditism) had been reported in clams (Lee et al 2013) and in gastropods (Guallart et al 2013). In this paper the term protandry was considered as starting life as male with only one sex reversal to die as female.…”

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confidence: 93%

Unnoticed Sex Change inAtrina maura(Bivalvia: Pinnidae): Histological and Size Structure Evidence

Camacho-Mondragón

Vázquez

Rivera-Camacho

et al. 2015

American Malacological Bulletin

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“…Although currently distributed mainly along the coast of North Africa, from north-eastern Morocco to Algeria and Tunisia, some populations remain in Corsica (Laborel-Deguen & Laborel 1991), Sardinia (Doneddu & Manunza 1992, Porcheddu & Milella 1991, and the southern coast of Spain (Espinosa 2006, Guallart & Templado 2012. As a broadcast spawner, the patchy distribution and small effective population size of P. ferruginea will likely lead to poor local reproductive success (Rivera-Ingraham et al 2011b, Guallart et al 2013b. A patchy distribution combined with a lack of contact among populations and continued pressure from human activities are certain to impact local survival and genetic diversity (Machordom et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Filling the limpet gap: molecular characterization of the genus Patella (Patellidae, Gastropoda) in the Algerian coasts of Oran

Kallouche¹,

Acevedo²,

Ghalek³

et al. 2018

Acta Zool Acad Sci H

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Several molecular studies have been conducted on northeastern Atlantic and Mediterranean patellid limpets, but Algerian specimens have never been included in these studies. This work intends to fill this gap and characterize populations of different Patella species inhabiting the Algerian coasts of Oran, clarifying the presence of Patella ferruginea that is considered as endangered. Moreover, comparison of their intraspecific variation with that of other areas might enlighten about populations connectivity and the conservation status of the analysed species.The molecular analyses performed on the samples from Oran's coasts, confirmed the presence of Patella ferruginea, P. rustica and P. caerulea, all of which shared haplotypes with other Mediterranean localities previously analysed. The intraspecific differentiation was limited, with the exception of P. rustica, which showed the greatest diversity, while P. ferruginea, the most endangered species, showed the lowest.

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Two-way sex change in the endangered limpetPatella ferruginea(Mollusca, Gastropoda)

Cited by 37 publications

References 25 publications

The influence of simulated exploitation on Patella vulgata populations: protandric sex change is size‐dependent

The influence of simulated exploitation on Patella vulgata populations: protandric sex change is size‐dependent

Unnoticed Sex Change inAtrina maura(Bivalvia: Pinnidae): Histological and Size Structure Evidence

Filling the limpet gap: molecular characterization of the genus Patella (Patellidae, Gastropoda) in the Algerian coasts of Oran

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