Jayaraj, Kaderambil Arjunan
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Distribution and Attachment of Bryozoans in the Intertidal Region of South Andaman Island Naufal, Mohammed; Pathan, Anil; Jayaraj, Kaderambil Arjunan
Journal of Tropical Life Science Vol 8, No 3 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.798 KB) | DOI: 10.11594/jtls.08.03.01

Abstract

Aiming to collate the distribution and the attachment preference of intertidal bryozoan of Andaman waters, a study was carried out in three intertidal sites (Burmanallah, Kodiyaghat, and Chidiytapu) of southeastern coasts of the Andaman Islands between June and August 2016. The present study is the first exclusive report on bryozoans from the Andaman Islands after a long research gap of nine decades. During our investigation, a total of twelve genera were identified from both calcareous and non-calcareous substratum. Out of the twelve genera, eight genera were new records from the island. The present study showed that the attachment affinity of the Bryozoans is more towards natural substratum particularly on the rocks. The Thalamoporella sp. reported the most abundant species with maximum average colony length of 3.5 cm from the rock substratum.
New Record of Marine Parasitic Isopods (Family, Corallinidae) from South Andaman, Andaman Islands, India Anil, Pathan; Das, Tarun; Jayaraj, Kaderambil Arjunan
Journal of Tropical Life Science Vol 8, No 3 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.033 KB) | DOI: 10.11594/jtls.08.03.12

Abstract

Parasitic isopods are causing problems to the worldwide fishery resources. The studies on parasitic isopods are very scanty in Andaman Islands. So here we provided information on the distribution of two species of parasitic isopods of fishes from Junghlighat fish landing center of South Andaman. The two marine parasitic isopods species are Argathona rhinoceros (Bleeker 1857) and Argathon amacronema (Bleeker 1857). They found to infest the host marine fishes Epinephelus coioides (Hamilton 1822) and Epinephelus tauvina (Forsskal 1775) respectively. These two species were collected from the nostril cavity of the individual host fishes. The morphological characteristics of two specimens are described in detail. Prevalence of corallinids provides additional information to update the check list of isopods from Andaman and Nicobar Islands.
First record of the genus Metacirolana sp. and Cymodoce tribullis (Crustacea; Isopoda) from South Andaman, Andaman Islands, India Anil, Pathan; Ummath, Ameen; Mohammed PS, Bijin; Jayaraj, Kaderambil Arjunan
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.605 KB) | DOI: 10.11594/jtls.10.02.08

Abstract

Isopoda are one of the most poorly known crustaceans in Andaman and Nicobar Islands. The present study has recorded genus Metacirolana sp. and Cymodoce tribullis, for the first time from South Andaman. This recent sighting provides a new distribution of this two species in the Indian province. The specimens were collected from the seaweeds of intertidal regions of Kodiyaghat, South Andaman, Andaman Islands. The morphological characteristics of these two species were described. Furthermore, this study adds two more species to the isopoda check list of Andaman and Nicobar Islands. The present study also provides additional information on epifaunal communities associated with the seaweeds in the intertidal region of Kodiyaghat, South Andaman.