Basic Techniques in Fish Taxonomy

Mahesh, V and Kalavathi, N R and Kumar, Rajan and Nair, Rekha J (2022) Basic Techniques in Fish Taxonomy. In: ICAR-CMFRI -Winter School on Recent Development in Taxonomic Techniques of Marine Fishes for Conservation and Sustainable Fisheries Management. ICAR-Central Marine Fisheries Research Institute, Kochi, pp. 53-60.

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    Abstract

    Modern taxonomy in general is heading towards an integrated approach to taxonomy (Osterhage et al. 2016), especially in case where ambiguities are to be resolved among highly cryptic species. Integrated taxonomy compiles and analyse taxonomic information from all the available resources like classical taxonomy (morpho-meristic features) and modern tools (DNA based methods). The integrated approach most often provides a better resolution than the individual methods. Further, the classical approach to taxonomy itself has evolved substantially and provides much more insights than ever before. Classical taxonomy mostly revolves round the observation of external characters like major morphometric measurements or counts and subsequently on anatomical features like neurocranium, facial bones, caudal verterbrae, etc (Alexandre and Menezes, 2007). At present, in addition to these, even shapes of otolith and scales have been incorporated in species differentiation and description (Jawad and Al-Jufaili, 2007). The science of taxonomy also changed in the way the morphological data is being collected. Presently, several images based techniques like truss networks or fourier descriptors are used to objectively represent the morphometry and shape of the species (Pavlov, 2016; Renjith et al. 2014; Afanasyev et al. 2017; Gupta et al. 2018). These advancements in the classical approach to taxonomy and support extended by molecular science are given rise to an integrated approach to taxonomy, which is now being accepted as best practices in taxonomy.

    Item Type: Book Section
    Subjects: Fish and Fisheries
    Fish and Fisheries > Fish Taxonomy
    Divisions: CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 29 Jan 2022 05:01
    Last Modified: 11 Feb 2022 05:13
    URI: http://eprints.cmfri.org.in/id/eprint/15705

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