Systematics and biology of the blue lanternfish, Diaphus coeruleus from the south-eastern Arabian Sea

Meera, K M and Manjebrayakath, Hashim and Sanjeevan, V N and Jayasankar, J and Ambrose, T V and Sudhakar, M (2019) Systematics and biology of the blue lanternfish, Diaphus coeruleus from the south-eastern Arabian Sea. Journal of the Marine Biological Association of the United Kingdom, 99 (1). pp. 239-248.

[img] Text
Journal of the Marine Biological Association of the United Kingdom_2018_Jayasankar J_Systematics and biology of the blue lanternfish, Diaphus coeruleus.pdf
Restricted to Registered users only

Download (450kB) | Request a copy | Please mail the copy request to cmfrilibrary@gmail.com
Official URL: https://www.cambridge.org/core/journals/journal-of...
Related URLs:

    Abstract

    The paper presents the first detailed study on systematics, otolith structure and biology of Diaphus coeruleus, from the southeastern Arabian Sea. The closely related and co-inhabiting species D. coeruleus and D. watasei are distinguished on the basis of morphometric, meristic and otolith characters. Analysis of gut content revealed that these fishes mainly feed on deep sea squids and shrimps. Six maturation stages of gonads are identified in males (immature, quiescent, mature, ripe, spawning and spent) and five stages (immature, quiescent, mature, ripening and spawning stages) in females. Overall sex ratio deviated in favour of males (1 male: 0.2 female) and the mean fecundity was 2150 + 353 eggs. The length-weight relationship shows an overall isometric growth in males with N ¼ 76 and b ¼ 3.13 and for females with N ¼ 17 and suggests negative allometric growth (b ¼ 1.719). Otolith length (LO) and otolith weight (WO) are positively correlated to standard body length (LS) and body weight (BW).

    Item Type: Article
    Uncontrolled Keywords: Length–weight; otolith; mesopelagic fishes; myctophids; Diaphus coeruleus; south-eastern Arabian Sea
    Subjects: Fish and Fisheries > Fish biology
    Divisions: CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Subject Area > CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Depositing User: Mr. Arun Surendran
    Date Deposited: 17 Apr 2021 10:20
    Last Modified: 17 Apr 2021 10:20
    URI: http://eprints.cmfri.org.in/id/eprint/15112

    Actions (login required)

    View Item View Item