Underwater sampling methods for marine biodiversity monitoring

Viswambharan, Divya (2024) Underwater sampling methods for marine biodiversity monitoring. In: Training Manual on "Know Your Marine Biodiversity and Environment (MarBiE 2)" Taxonomy of Marine Organisms. CMFRI Training Manual Series (41). ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 21-28.

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Abstract

Marine ecosystems are vital for life on Earth, demanding urgent conservation efforts amidst increasing human encroachment. Sampling, essential for biodiversity monitoring, faces unique challenges in the dynamic underwater realm. This article delves into diverse sampling methods tailored for marine biodiversity monitoring. Traditional trawling and dredging, while informative, can harm sensitive habitats, driving the need for sustainable alternatives like dive-based surveys employing snorkelling and SCUBA techniques. Additionally, underwater videography and advanced technologies like ROVs and AUVs offer unprecedented insights. Citizen science initiatives further enhance data collection, despite quality concerns. Understanding these methods' strengths, limitations, and applications is crucial for effective marine conservation across ecosystems worldwide.

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