Efficiency of artificial collectors for quantitative assessment of sea urchin settlement rates

Scientia Marina

José Carlos Hernández¹  Sabrina Clemente¹  Marc Balsalobre¹  Owen S. Wangensteen²  Creu Palacín² 

[1] Biodiversidad, Ecología Marina y Conservación, Departamento de Biología Animal (Ciencias Marinas), Facultad de Biología, Universidad de La Laguna;Dept. Biología Animal, Institut de Recerca de la Biodiversitat (IRBIO). Universitat de Barcelona;

关键词: settlement;    artificial collectors;    sea urchins;    post-larvae;    mediterranean;    canary islands;   

DOI  :  10.3989/scimar.04252.13A

来源: DOAJ

【 摘 要 】

We tested the suitability of three different kinds of artificial collectors designed for quantitative assessment of echinoid settlement rates: (1) nylon nets containing plastic biofilter balls, (2) vertical scrub brushes with vegetal bristles and (3) horizontal triangular mats of coconut fibre. We measured the collecting efficiency by counting the number of post-larvae of two sea urchin species (Paracentrotus lividus and Arbacia lixula) gathered by each collector and deployed in two geographic areas: Tenerife (Canary Islands, eastern Atlantic) and Tossa de Mar (Costa Brava, northwestern Mediterranean). The plastic biofilter ball collector proved to be the most efficient design, collecting more settlers of both sea urchin species under all assayed conditions and showing a higher reproducibility than the other two designs. We therefore suggest using plastic biofilter balls in future studies aimed at quantifying echinoid settlement rates.

【 授权许可】

Unknown