Population Structure and Growth of the Threatened Pen Shell, Pinna rudis (Linnaeus, 1758) in a Western Mediterranean Marine Protected Area
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AuthorsNebot-Colomer, E. (Elisabet); Vázquez-Luis, M. (Maite); García-March, J.R. (José Rafael); Deudero, S. (Salud)
Editor/sKatsanevakis, S. (Stelios)
Coastal ecosystems are being extensively degraded by human activities. Benthic, slow-growing and long-lived species are highly vulnerable to these impacts. Marine protected areas may avoid biodiversity losses through habitat protection. The pen shell Pinna rudis is a protected species, but scarce data are available on its ecology and biology. The present study is a comprehensive ecological study encompassing several unknown aspects of the growth and inner record in relation to habitat types, density and size distribu¬tion. During the summers of 2011, 2012 and 2013, a total of 418 strip transects were conducted by scuba diving in the Marine Pro¬tected Area of Cabrera National Park (39.14° N, 2.96° E). Samples were conducted across different habitats and depths, exploring 152,146.35 m2 in total. A large range of sizes and ages were recorded within the park with densities ranging from 0 to 6.89 ind./100 m2. Most pen shells were patchily distributed and concentrated mainly in caves. Two ...
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