Biodiversity Valuation of Marine Ecosystem of the South-West Coast of India with Special Reference to Kerala Coast

Joshi, K K; Narayanakumar, R; George, Rani Mary; Varghese, Molly; Jasmine, S; Srinath, Krishna; Saravanan, S.; Kuriakose, Somy; Antony, Geetha; Geetha, P M; George, Gimy

doi:10.2174/9781681080215115010020

Biodiversity Conservation - Challenges for the Future 2015

DOI: 10.2174/9781681080215115010020

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Biodiversity Valuation of Marine Ecosystem of the South-West Coast of India with Special Reference to Kerala Coast

K K Joshi¹,

R Narayanakumar²,

Rani Mary George³

et al.

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2024

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“…Kerala (Western Ghats) belongs to one of the world's twenty-five biodiversity hotspots with various forms of water bodies which includes 590 Km of long coastline, 44 rivers, 34 lakes and 11 backwaters. The marine fish diversity of Kerala accounts for 1020 species of marine finfishes (Joshi 2015). The state of Kerala has a total area of Continental shelf of 40,000 Km 2 and about 13000 Km 2 falls within the 50 m depth zone.…”

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New distributional record of 31 marine fishes from rocky reefs of Kerala: A case study with underwater visual census (UVC) method

Baiju,

Pereira,

Sethu

et al. 2024

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Monitoring ichthyofaunal diversity through in-situ approach is crucial in critical habitats like rocky reefs serving as feeding, breeding, and nursing grounds for marine life, including fishes. This is significant in coastal regions facing habitat loss, pollution, climate change, and overfishing. Marine scientists use underwater visual census (UVS) for fish diversity surveys. This manuscript highlights UVS's importance in marine biodiversity documentation. During an underwater survey from December 2013 to February 2018, 232 fish species from 2 classes, 16 orders, 62 families, and 114 genera were recorded. The study focused on shallow depths (~ 1 m), reef crests, reef slopes (up to 10 m), and sand flats (up to 12 m). It predicted family-wise species diversity at 15–30m depths using extrapolation and modelling. Notably, 31 marine fish species from 17 families and 24 genera had new distribution ranges in the Indian Ocean and India. Among these, 13 species were first-time records for Indian waters, and 18 were new regional records for Kerala. The study underscores reef-associated biodiversity explorations' importance and the in-situ method's significance in biodiversity documentation of the least-studied, species-rich, and ecologically sensitive rocky reef ecosystems of Kerala coast.

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mentioning

confidence: 99%

New distributional record of 31 marine fishes from rocky reefs of Kerala: A case study with underwater visual census (UVC) method

Baiju,

Pereira,

Sethu

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

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Biodiversity Valuation of Marine Ecosystem of the South-West Coast of India with Special Reference to Kerala Coast

Cited by 1 publication

References 0 publications

New distributional record of 31 marine fishes from rocky reefs of Kerala: A case study with underwater visual census (UVC) method

New distributional record of 31 marine fishes from rocky reefs of Kerala: A case study with underwater visual census (UVC) method

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