Distribution and population dynamics of the limpet Patella aspera (Lamarck) in Bantry Bay

Thompson, Gordon B.

doi:10.1016/0022-0981(79)90039-x

Cited by 45 publications

(39 citation statements)

References 17 publications

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“…aspera) of Guerra & Gaudencio (see this volume). They contrast strongly with data from Britain and Ireland (Orton & Southward, 1961;Thompson, 1979;Bowman, 1985;Bowman & Lewis, this volume) where gonad activity is of much shorter duration and usually confined to midsummer and/or early autumn.…”

contrasting

confidence: 80%

Reproduction of Patella spp. on the Basque coast of Spain

Ibáñez¹,

Pena²,

Feliu³

1986

Hydrobiologia

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contrasting

confidence: 80%

Reproduction of Patella spp. on the Basque coast of Spain

Ibáñez¹,

Pena²,

Feliu³

1986

Hydrobiologia

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“…The present study considered 4 islands spanned across the archipelago (Flores, Graciosa, Pico and São Miguel) that differed in the history of limpet exploitation (Table 1), and focused on the 2 patellid species present on these islands: Patella aspera and P. candei. The former is a slow-growing protandrous species that can attain large sizes (all individuals are male at 20 mm shell length, while 70% of mature animals at 55 mm are female; Thompson 1979). The latter is a faster growing, more opportunistic species.…”

Section: Methodsmentioning

confidence: 99%

Exploitation of rocky intertidal grazers: population status and potential impacts on community structure and functioning

Martins¹,

Jenkins²,

Hawkins³

et al. 2008

Aquat. Biol.

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A wide range of anthropogenic activities are impacting the ecology of coastal areas. Exploitation of marine resources is one such activity, which, through cascading trophic effects, can have influences well beyond that of the target species. We investigated the mid-rocky-shore community structure of the Azores archipelago, a seldom-studied habitat, where there is a local tradition of exploiting limpets, the main intertidal grazers. The limpet population structure differed among islands, and there was an inverse relationship between the abundance of larger limpets and the human population per coastal perimeter, but not the associated catch data. At small scales of resolution (quadrats), there was a negative relationship between the cover of algae and limpets and a positive relationship between barnacles and limpets. These relationships were also apparent at the larger scale of islands as a function of the gradient of exploitation. Our results show how natural habitat fragmentation may be useful where the experimental testing of a hypothesis is not possible, and provide evidence for the trophic cascading effects of limpet exploitation at landscape scales.

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“…Assumptions of protandric hermaphroditism are usually based on sexual dimorphism in size-classes (Orton, 1919;Branch, 1974;Thompson, 1979;Creese et al, 1990), with the occurrence of a small number of simultaneous hermaphrodites in intermediate size classes (Bacci, 1947;Branch, 1974;Creese et al, 1990). Nevertheless, for the large Californian acmaeid, Lottia gigantea (Wright and Lindberg 1982), direct observations have confirmed the pattern, as also, more recently, for the patellid, Patella vulgata (Le Quesne and Hawkins, 2006).…”

mentioning

confidence: 81%

“…gomesii is able to spawn throughout the year, there is a major spawning event during summer, with synchrony of genders. Whereas sequential hermaphroditism has been suggested for several members within the Order Patellogastropoda, based on indirect observations (Orton, 1919;Bacci, 1947;Branch, 1974;Thompson, 1979;Creese et al, 1990), P.c. gomesii has invariably been regarded as gonochoristic (Martins et al, 1987;Cúrdia et al, 2005).…”

mentioning

confidence: 99%