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Short-term effects of experimental trampling on polychaetes of a rocky intertidal substratum (Asinara Island MPA, NW Mediterranean)

Casu, Daniela and Ceccherelli, Giulia and Curini Galletti, Marco and Castelli, Alberto (2006) Short-term effects of experimental trampling on polychaetes of a rocky intertidal substratum (Asinara Island MPA, NW Mediterranean). Scientia Marina, Vol. 70 (Suppl. 3), p. 179-186. eISSN 1886-8134. Article.

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Abstract

Rocky intertidal platforms at Asinara Island Marine Protected Area (Italy, Mediterranean Sea) were experimentally trampled to assess the impact of human visitation on polychaetes. Trampling at two different experimental intensities (60,120 steps/20x20 cm quadrat) and controls were applied at two locations (“no-entry, no-take” zones) of the MPA. One day after the experimental trampling, benthic samples were collected and the polychaetes counted and identified. Overall 1146 individuals were collected; Salvatoria clavata, Polyophthalmus pictus, Syllis prolifera, Amphiglena mediterranea, Fabricia stellaris, Platynereis dumerilii and Sphaerosyllis taylori were the most abundant species. Analyses of variance on all polychaetes and on each of the important polychaete species showed a significant higher abundance in controls than in trampled plots. Given the short-term decline in abundance, these results suggest that polychaetes are vulnerable even to the lowest experimental level of trampling.

Item Type:Article
ID Code:2644
Status:Published
Refereed:Yes
Uncontrolled Keywords:Polychaetes, NW Mediterranean, MPA, Asinara Island
Subjects:Area 05 - Scienze biologiche > BIO/07 Ecologia
Area 05 - Scienze biologiche > BIO/05 Zoologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze botaniche, ecologiche e geologiche
001 Università di Sassari > 01 Dipartimenti > Zoologia e genetica evoluzionistica
Publisher:Institut de Ciències del Mar de Barcelona (CSIC)
eISSN:1886-8134
Publisher Policy:Depositato per gentile concessione dell'Editore
Additional Information:Paper presented at Scientific Advances in Polychaete Research: 8th International Polychaete Conference (IPC), July 2004, Cantoblanco, Madrid, Spain
Deposited On:18 Aug 2009 10:08

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