The exploitation of limpets in a Mediterranean Marine Protected Area: assessing the effectiveness of protection in the intertidal zone

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Σημασιολογικός εμπλουτισμός/ομογενοποίηση από το EKT

2018 (EL)
The exploitation of limpets in a Mediterranean Marine Protected Area: assessing the effectiveness of protection in the intertidal zone (EN)

de LUCIA, GIUSEPPE A.
MARRA, STEFANO
COPPA, STEFANIA
MASSARO, GIORGIO
CAMEDDA, ANDREA

Marine Protected Area “Penisola del Sinis - Isola di Mal di Ventre” through the Italian Ministry of Environment: founding (Grant Agreement No. 89/AM del 9/07/2015) (EN)

Limpets are intertidal keystone grazers and their overexploitation could have significant consequences for intertidal communities. Limpets are harvested around the Sinis Peninsula (Sardinia, Italy) but harvesting is prohibited within the “Penisola del Sinis - Isola di Mal di Ventre” Marine Protected Area (MPA). This work assesses the effects of human harvesting on the population dynamics of three common Mediterranean species of Patella, namely, P. rustica, P. caerulea and P. ulyssiponensis, testing the effectiveness of the MPA and the role of site accessibility in limiting the intensity of such harvesting pressure. In the period between June 2015 and August 2016, limpet abundance and size were recorded on a monthly basis by means of photographic frames within linear transects at ten sites spread out along the coastline of the Sinis Peninsula to assess growth and temporal patterns. Limpets older than two years are extremely rare in the study area. Limpets are more abundant within the MPA in comparison with non-protected areas and within less accessible sites in comparison with areas where the intertidal zone is easily accessible from land. Despite this, overall human-induced mortality in the area is high, indeed the pool of limpets observed with a mean density of 104.3 ± 9.7 limpets/m2 during the first survey was reduced by 99.2%in less than one year. This work demonstrates that human harvesting strongly affects the population dynamics of Patella species in the area and that within the MPA this stressor is not efficiently reduced. (EN)

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Monthly recording of length and abundance of limpets on fixed transects using image analysis (EN)

Mediterranean (EN)
Patella (EN)
accessibility (EN)
marine protected area (EN)
human harvesting (EN)
marine protected area. (EN)
intertidal (EN)

Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ) (EL)
Hellenic Centre for Marine Research (HCMR) (EN)

Mediterranean Marine Science

2018-01-17


Hellenic Centre for Marine Research (EN)

2015-2016 (EN)
Mediterranean Sea (EN)
species of the Genus Patella (P. rustica, P. caerulea, P. ulyssiponensis); 3 fixed transect * 10 sites * 15 months (EN)

1791-6763
1108-393X
Mediterranean Marine Science; Vol 18, No 3 (2017); 406-423 (EL)
Mediterranean Marine Science; Vol 18, No 3 (2017); 406-423 (EN)



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