Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery

In the present study, the commercial (16 mm nominal mesh size) and experimental deep water cast nets with different mesh sizes (20 mm, 24 mm, 28 mm and 32 mm nominal mesh size) were tested to compare the captured fish lengths and catch amounts for whiting (Merlangius merlangus euxinus). Experiments...

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Main Authors: Göktuğ Dalgıç, Mehmet Şaban Kutay, Ahmet Raif Eryaşar
Format: Article
Language:English
Published: Adem Yavuz Sönmez 2020-12-01
Series:Marine Science and Technology Bulletin
Subjects:
Online Access:https://dergipark.org.tr/en/pub/masteb/issue/51784/728610?publisher=ademyavuzsonmez
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author Göktuğ Dalgıç
Mehmet Şaban Kutay
Ahmet Raif Eryaşar
author_facet Göktuğ Dalgıç
Mehmet Şaban Kutay
Ahmet Raif Eryaşar
author_sort Göktuğ Dalgıç
collection DOAJ
description In the present study, the commercial (16 mm nominal mesh size) and experimental deep water cast nets with different mesh sizes (20 mm, 24 mm, 28 mm and 32 mm nominal mesh size) were tested to compare the captured fish lengths and catch amounts for whiting (Merlangius merlangus euxinus). Experiments were carried out between July, 11 and August, 29, 2018 in Rize province of the south-eastern Black Sea Region. A commercial fishing boat was chartered for 20-day sea trials and in total, 66 set operations were done for all nets. Generalized Linear Mixed Models (GLMM) was used to compare fish sizes caught with experimental and commercial deep water cast nets. Results showed that more than 70 percent of the individuals caught in cast nets with 16 mm, 20 mm and 24 mm size were below the minimum landing size of whiting (13 cm). Among tested nets, only cast net with 32 mm size caught significantly less individuals under the minimum landing size. Finally, the results obtained from this study are discussed in terms of sustainable fisheries of whiting in the Black Sea.
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spelling doaj.art-054540eddcd949219163e73afcd97d892023-02-15T16:21:15ZengAdem Yavuz SönmezMarine Science and Technology Bulletin2147-96662020-12-019213013510.33714/masteb.7286101306Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) FisheryGöktuğ DalgıçMehmet Şaban KutayAhmet Raif EryaşarIn the present study, the commercial (16 mm nominal mesh size) and experimental deep water cast nets with different mesh sizes (20 mm, 24 mm, 28 mm and 32 mm nominal mesh size) were tested to compare the captured fish lengths and catch amounts for whiting (Merlangius merlangus euxinus). Experiments were carried out between July, 11 and August, 29, 2018 in Rize province of the south-eastern Black Sea Region. A commercial fishing boat was chartered for 20-day sea trials and in total, 66 set operations were done for all nets. Generalized Linear Mixed Models (GLMM) was used to compare fish sizes caught with experimental and commercial deep water cast nets. Results showed that more than 70 percent of the individuals caught in cast nets with 16 mm, 20 mm and 24 mm size were below the minimum landing size of whiting (13 cm). Among tested nets, only cast net with 32 mm size caught significantly less individuals under the minimum landing size. Finally, the results obtained from this study are discussed in terms of sustainable fisheries of whiting in the Black Sea.https://dergipark.org.tr/en/pub/masteb/issue/51784/728610?publisher=ademyavuzsonmezdeep water cast netwhitingcatch compositionblack sea
spellingShingle Göktuğ Dalgıç
Mehmet Şaban Kutay
Ahmet Raif Eryaşar
Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
Marine Science and Technology Bulletin
deep water cast net
whiting
catch composition
black sea
title Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
title_full Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
title_fullStr Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
title_full_unstemmed Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
title_short Catch Comparison of Commercial and Experimental Deep Water Cast Nets with Different Mesh Sizes for Whiting (Merlangius merlangus euxinus) Fishery
title_sort catch comparison of commercial and experimental deep water cast nets with different mesh sizes for whiting merlangius merlangus euxinus fishery
topic deep water cast net
whiting
catch composition
black sea
url https://dergipark.org.tr/en/pub/masteb/issue/51784/728610?publisher=ademyavuzsonmez
work_keys_str_mv AT goktugdalgıc catchcomparisonofcommercialandexperimentaldeepwatercastnetswithdifferentmeshsizesforwhitingmerlangiusmerlanguseuxinusfishery
AT mehmetsabankutay catchcomparisonofcommercialandexperimentaldeepwatercastnetswithdifferentmeshsizesforwhitingmerlangiusmerlanguseuxinusfishery
AT ahmetraiferyasar catchcomparisonofcommercialandexperimentaldeepwatercastnetswithdifferentmeshsizesforwhitingmerlangiusmerlanguseuxinusfishery