Video transects as a complement to underwater visual census to study reserve effect on fish assemblages

Aquatic Biology

关键词: MPA;    Marine protected area;    Reserve effect;    Underwater video;    Visual census;    Mediterranean Sea;    Fish;   

DOI  :  10.3354/ab00506

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: The present study focuses on the use of diver-operated video (DOV) as a tool to evaluate the impact of a marine reserve on a fish assemblage, in comparison to underwater visual census (UVC). Samplings were conducted in the vicinity of the marine protected area (MPA) Cerbère-Banyuls (northwestern Mediterranean Sea). Four sites, with different levels of protection, were sampled 4 times, at depths of 5 and 10 m, to study abundance, species richness, structure of fish assemblages and fish aggregation. Results obtained by DOV and UVC provided evidence of significant effects of protection on abundance, species richness and fish assemblages. However, detection of weaker reserve effects using DOV may be limited. Furthermore, certain species are difficult to identify by video (e.g.

【 授权许可】

CC BY