Fishery and behaviour of banana prawn, Fenneropenaeus merguiensis (de Man,1888) around Mumbai waters
Journal Title: International Journal of Life Science - Year 2018, Vol 6, Issue 2
Abstract
Behaviour of banana prawn, Fenneropenaeus merguiensis is investigated from around Mumbai waters. In inshore waters, the species contributed to the penaeid prawn catch at 44% (barrier net) and 0.8% (bag net). In seasonally operated gill nets the entire catch consisted of this species and in trawl nets, the contribution of the species was <1.0%. However in trawl net the catch was very high during March-May from nearshore and offshore waters. The bag nets are operated in areas with strong tidal currents in Mumbai harbour while barrier nets are set along the banks of Karanja, Dharamtar and Rajpuri creeks. Owing to shoaling behaviour (emigrating behaviour towards offshore) the gill nets are operated in shallow nearshore waters at the end of monsoon for one or two weeks. The juveniles of banana prawn feed in shallow depths close to the banks rather than mid-stream waters of the creeks to avoid strong currents, and here they get caught in barrier nets. The large sized sub-adult and adult prawns which remains in the creeks throughout the rainy season (over-wintering population), and instead of emigrating to the deeper marine waters, display shoaling behaviour at the mouth of the creek and nearshore waters during post-monsoon and get caught by gill nets. While moving in shoals, these sub-adult and adult prawns swim in the bottom, churning the soft bottom mud intermittently, probably to escape from predators. Fishermen easily spot these clouds of muddy water in the calm and clear sea and exploit the prawns by setting their gill nets; however this fishery lasts only for a short period.
Authors and Affiliations
Sushant Mane, VD Deshmukh, Sujit Sundaram
Keywords
Related Articles
- EP ID EP546864
- DOI -
- Views 67
- Downloads 0
Glossopteris chhindai, a new species of Glossopteris from Permotriassic beds of Kamthi stage, Perasia, district-Chhindwara India
The Permian glacial deposits of S. Africa, Australia, S. America and Antarctica are succeeded by beds containing a flora very different from that of N. America and Europe. The flora of the south grew in a cold, wet clima...
Comparative ultrastructure study on the sperm morphology of two grapsid crabs
The study envisaged the spermatozoon morphology of two grapsid crabs, Grapsus albolineatus and G. tenuicrustatus (Family: Grapsidea) via, electron microscope. The marked spermatozoa similarities between these two species...
Checklist of Anurans from semi-arid biotope of Deccan Plateau; Solapur District, Maharashtra, India
Survey of anurans i.e. frogs and toads was carried out in the selected sampling sites from Deccan Peninsular Central Plateau; the Solapur district, Maharashtra, India. Solapur district comes under semi-arid zone with sca...
Changing biodiversity scenario in Lonar meteoritic crater, (MS), India, as revealed by the studies on insects (Order- Lepidoptera, Orthoptera and Odonata)
The Indian sub-regions hosts about 1,504 species of butterflies of which peninsular India hosts 351, and the Western Ghats 334. Lonar Lake (19o59’N & 74o34’E) is situated about 155km from Parbhani town in Buldhana Distri...
Ascomycetes from Mangrove ecosystem of Wandoor- Andaman (India)
The present study deals with marine fungi from Wandoor -Andaman. The dead, decaying, intertidal and submerged mangrove wood samples were collected from Wandoor. These samples examined for colonization of marine fungi. To...