Illustration of Key Morphological Characteristics of Highly Demanded, Export Restricted and Export Prohibited Marine Ornamental Fish Species in Sri Lanka

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dc.contributor.authorDhananjaya, B.G.N.
dc.contributor.authorDias, P.C.B.
dc.contributor.authorHerath, H.M.T.N.B.
dc.contributor.authorDeyshappriya, N.P.R.
dc.contributor.authorLiyanage, N.P.P.
dc.date.accessioned2021-01-26T08:28:26Z
dc.date.available2021-01-26T08:28:26Z
dc.date.issued2020
dc.description.abstractThe marine ornamental fish export industry becomes a valuable foreign income generator over the past few years. However, illegal exporting of marine ornamental fishes has threatened the most marine species. Illegal exports continue, despite the available sufficient regulations including Fauna and Flora Protection Act No 49 of 1993 and Fisheries and Aquatic Resources Act No. 02 of 1996 of Sri Lanka. Illegal exporting of marine ornamental fishes also attributed to the misidentification of the marine species. Therefore, the present study aimed to develop a user-friendly marine ornamental fish identification guide based on a dichotomous key which aids to minimize the misidentification issues. Ten highly demanded marine ornamental species were selected from the Sri Lanka Customs database. In addition to that, 14 export restricted marine ornamental species and 17 export-prohibited species were chosen for preparation of the guide based on Fisheries and Aquatic Resources Act No. 02 of 1996. Secondary data were utilized to identify the morphometric and meristic characters that discriminate against the fish families. Morphological characters used to identify the species are included; body colour, body patterns, pectoral fin length, presence of stripes, number and position of the photophores, and head length. Fish species that live in the same area at the adult growth stage was used for collecting morphological characteristics among individuals of the same species. Forty-one species under the 16 families were included in the dichotomous key to find out from the study that Family Chaetodontidae has the highest number of restricted species (n=12). Under the prohibited species, family Haemulidae bears the highest number of species (n=4). The developed guide is important for fish divers, collectors, exporters as well as customs officers to identify the restricted and prohibited species. The dichotomous key developed in the present study will be utilized for the development of marine ornamental fish identification mobile application. Keywords: Dichotomous key, Marine ornamental fish, Sri Lanka, Mobile applicationen_US
dc.identifier.isbn9789550481293
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/5654/proceeding_oct_08-122.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;International Research Conference
dc.subjectAquacultureen_US
dc.subjectAquaculture and Fisheriesen_US
dc.subjectAnimal Sciencesen_US
dc.titleIllustration of Key Morphological Characteristics of Highly Demanded, Export Restricted and Export Prohibited Marine Ornamental Fish Species in Sri Lankaen_US
dc.title.alternativeInternational Research Conference 2020en_US
dc.typeOtheren_US
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