Catching efficiency of multifilament trammel nets with different twisted twine for shrimp fishing in Kotabaru, Indonesia
Abstract
Fishing experiments were carried out in Kotabaru of Indonesia to determine catching efficiency of double-twisted and triple-twisted multifilament trammel nets. A total of 10 nets were constructed with the same dimension and inner-outer mesh sizes (40-mm and 80-mm). Trials covered 160-net hauls/type with 1-hour submersion time. The shrimps were composed of Penaeus monodon, Penaeus merguensis, Metapenalis monoserus, Penaeus semiculatus and Parapenaeopsis sculptilis. A total of 142.8 kg shrimp comprises 84.46 kg (59.15%) for double-twisted and 58.34 kg (40.85%) for triple-twisted were collected over 16-daytrip sampling period, indicating double-twisted multifilament trammel net was 45% more efficient. The average weight of double-twisted (5.25±1.64 kg) was considerably higher than that of triple-twisted (3.65±1.41 kg) as well as total YPUE of double-twisted (1.056±0.02 kg) was considerably higher than that of triple-twisted (0.729±0.02 kg) (P<0.05). Some recommendations for improving performances and efficiency of trammel nets are made, for example, by inserting the additional bag collector along the lower part of the nets, placing selvedge between the lead line and the net or using underwater lamps associated with the net.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Ahmadi -
*
Faculty of Marine and Fishery, Lambung Mangkurat University
Indonesia
Ellysabet Kristina
Department of Marine and Fisheries Kotabaru District, Indonesia
Indonesia
Publication Date
December 15, 2017
Submission Date
May 24, 2017
Acceptance Date
July 4, 2017
Published in Issue
Year 1970 Volume: 34 Number: 4
Cited By
Selectivity of monofilament gillnets with different mesh sizes used in fishing of pearl mullet, (Alburnus tarichi (Güldenstädt, 1814)) in Lake Van
Ege Journal of Fisheries and Aquatic Sciences
https://doi.org/10.12714/egejfas.40.1.08