| Title: |
Investigations on Aimed Midwater Trawling for Myctophids in the Arabian Sea |
| Authors: |
Remesan, M. P.; Prajith, K. K.; Daniel Raj, F.; Joseph, Rithin; Boopendranath, M. R. |
| Source: |
Fishery Technology; Vol. 53 No. 3 (2016): Fishery Technology ; 2582-2632 ; 0015-3001 |
| Publisher Information: |
Society of Fisheries Technologists (India) |
| Publication Year: |
2025 |
| Collection: |
Indian Agricultural Research Journals (Indian Council of Agricultural Research) |
| Subject Terms: |
Aimed midwater trawling; lantern fishes; myctophid trawl; krill trawl; Arabian Sea |
| Description: |
Aimed midwater trawling for lantern fishes (Family:Myctophidae) was attempted in the Arabian Seaonboard FORV Sagar Sampada (LOA 72.5 m; 2,285 hp)at the depth range of 372 - 2230 m using a 45 mCIFT myctophid trawl and 49.5 m krill trawl. Thevertical opening was between 16.1 and 18.9 m at atrawling speed of 1.8-2.2 kn for the krill trawl and6.7-9.8 m at 2.3-2.8 kn trawling speed for themyctophid trawl. Total catch obtained duringoperations was 419.5 kg for a total fishing effort of33 h 41 min; with an overall mean catch rate of11.81kg h-1. Myctophid trawl contributed 96.0 kgwith a mean CPUE of 8.06±4.17 kg h-1 and krill trawlcontributed 323.5 kg with a mean CPUE of14.76±5.06 kg h-1. The total catch comprised of about40 species including myctophids (24.88%), otherfinfishes (46.01%), crustaceans (15.21%), jellyfish(13.52%) and cephalopods (0.4%). Myctophids consistedof11 species and it contributed only 25% ofthe catch. Finfishes belonging to order Stomiformescontributed about 41% of the total catch. Adjustmentof the trawl net to the depth of the fish distributionis complex as myctophids migrate vertically inmorning and evening at comparatively high speed.The low catch volume realized during the operations,indicate that trawl design and its operationneed to be further optimized taking into account themigration behavior in the vicinity of trawl system. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
https://epubs.icar.org.in/index.php/FT/article/view/60988/24961; https://epubs.icar.org.in/index.php/FT/article/view/60988 |
| DOI: |
10.56093/ft.v53i3.60988 |
| Availability: |
https://epubs.icar.org.in/index.php/FT/article/view/60988; https://doi.org/10.56093/ft.v53i3.60988 |
| Rights: |
Copyright (c) 2016 Fishery Technology |
| Accession Number: |
edsbas.45D81E52 |
| Database: |
BASE |