Mayuresh Gangal

Research Affiliate, Oceans and Coasts

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M.Sc.

I completed my Masters in Wildlife Biology and Conservation from the National Centre for Biological Sciences Bangalore. I am interested in marine ecosystems and would like to contribute in efforts to conserve them.

My work in Lakshadweep is mainly focused on documenting traditional fishing practices and to understand how they change over time. I also contribute to the research and conservation initiatives of my colleagues in the Lakshadweep islands.

Projects

Grouper faceoff

Aggregating groupers

Documenting and protecting spawning aggregations in the Lakshadweep

Boat 20and 20turtle

Turf Wars

Understanding turtle-fisher conflicts in Lakshadweep seagrass meadows

Publications

  • Poster
    2014
    Responsible Fishing
    Download

    PDF, 3.13 MB

  • Poster
    2014
    Larval connectivity in Lakshadweep
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    PDF, 3.33 MB

  • Poster
    2014
    The life-history of a grouper along a Lakshadweep time-line
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    PDF, 2.79 MB

  • Journal Article
    2012
    Structure and dynamics of South East Indian seagrass meadows across a sediment gradient
    Aquatic Botany, 98 (1): 34-39
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    PDF, 321 KB

    In this study we examine the influence of non-monsoon sediment arrival on the high-diversity SE Indian seagrass meadows of the Palk Bay and the Gulf of Mannar. We used a gradient-based approach to examine the influence of increasing sediment loads on species composition and shoot density. In addition, for the ubiquitous seagrass (Cymodocea serrulata), we tested the influence of sediment on its biomass and productivity. We identified three sites in Palk Bay and four sites in Gulf of Mannar (SE India) along a gradient of sediment input. At each of the seven locations, sediment traps were deployed to measure sedimentation rates. Nine seagrass cores were taken systematically along 50 m transects at a constant sub-tidal depth to measure shoot density and biomass. A few shoots of C. serrulata were marked to estimate the above ground seagrass growth rate. Our results indicate that sedimentation rates that ranged from 8.6 to 62.4 mg DW cm−2 d−1 could not explain species composition of the meadow or shoot density of the observed species. C. serrulata was, by far, the most abundant species and present in all sediment condi- tions. Sedimentation rates did not alter shoot elongation rates in C. serrulata, ranging from 1.54 ± 0.29 SD to 0.25 ± 0.02 SD cm d−1 , but in contrast, increased vertical rhizome elongation rate. This increase was reflected in an increase in below ground biomass along the sediment gradient (R2 = 0.582, p = 0.01). C. serrulata appears to be able to adapt to the sediment dynamics in this area by allocating resources to rhizomes and roots to counteract burial and stabilizing sediments. Given that siltation is one of the most important threats to seagrass meadows, understanding the species-specific adaptive mechanisms of seagrass species in these high-sediment, high diversity South Asian meadows is an important first step in ensuring their long-term survival and functioning

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