Design and technical characteristics of shark gillnet operating in Mumbai coast
Journal Title: Journal of Applied and Natural Science - Year 2017, Vol 9, Issue 2
Abstract
This paper deals with design and general features of shark gillnets operated along Mumbai coast. A PA monofilament of 0.60 to 1.0 mm diameter and selvedge meshes of PE of 1 to 2 mm diameter were used for shark set gillnets along Mumbai coast. Mesh size of the main webbing ranged from 120 to 200 mm with average of 144.4 ± 10.83 mm and rigged with a hanging coefficient of 0.41 to 0.51 with average of 0.42 were commonly used. A hung length ranging from 40 to 105 m with mean of 59 ± 10.37 with total hung depth varying from 6.42 to 10.58 m with average of 8.15 ± 0.49 m. Shark gillnet had a total length of 260 to 456 m with mean of 350.71 ± 28.53 m. The nets were operated mostly at a depth up to 18 m very near to the shore and were of set type of gillnet. Polyamide (PA) monofilament netting of 0.16 to 0.32 mm diameter and of mesh size 26-200 mm were generally used for construction of gillnets throughout the Mumbai coast. Polyamide (PA) monofilament has completely replaced PA multifilament in all the nets except those targeted i.e. white sardine and seerfish.
Authors and Affiliations
Shabir A. Dar, Saly N. Thomas, S. K. Chakraborty
Keywords
Related Articles
- EP ID EP286574
- DOI 10.31018/jans.v9i2.1285
- Views 90
- Downloads 0
Effect of anthropogenic disturbances on biomass and carbon storage potential of a dry tropical forest in India
The forests of Chhattisgarh are very well known for its species richness, diversity, biomass, carbon stock and productivity. The present study was carried out at Katghora forest division under Bilaspur circle of Korba di...
Optimization of machine parameters of Parvatiya Sugam motorized thresher using response surface methodology
A Parvatiya Sugam Thresher was designed and developed at College of Home Science GBPUA & T, Pantnagar, Uttarakhand, India. It is a low cost motorized machine for threshing paddy crops especially for hill region, it i...
Development and evaluation of nutritionally enhanced potato rice papads (Indian cookie)
The present study was carried out to develop papads (Indian cookie) from potato (Solanum tuberosum L.) and rice (Oryza sativa) blends and to analyze them for organoleptic, physicochemical, phytochemical and shelf life qu...
Ultrasonic method of Biodiesel production from Palm Kernel
Biodiesel is a clean burning alternative fuel derived from chemical reactors produced from palm kernel oil, is currently spreading like a wind dust in the air. It is considered as the fuel for the future without rise in...
Phyto-availability of chromium to fluted pumpkin (Telfairia occidentalis HookF.)in an ultisol
The present study was conducted to determine the influence of Cr on some agronomic characters of Telfairia occidentalis nutrient content and uptake and some chemical properties of soil. In the greenhouse trial, chromium...