Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India
Hilsa, Tenualosa ilisha is a highly prestigious fish for esteemed delicious taste, high market demand and price. It forms an important fishery of funnel-shaped 72 km long Narmada Estuary. Rapid decline in hilsa catch has been recorded in the Narmada Estuary over last few decades. Hilsa catch was rec...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BdFISH
2018-04-01
|
| Series: | Journal of Fisheries |
| Subjects: | |
| Online Access: | http://journal.bdfish.org/index.php/fisheries/article/view/254 |
| _version_ | 1828387185023254528 |
|---|---|
| author | Dibakar Bhakta Wakamban Anand Meetei Gopinathan Vaisakh Sanjoy Kumar Das Ranjan Kumar Manna |
| author_facet | Dibakar Bhakta Wakamban Anand Meetei Gopinathan Vaisakh Sanjoy Kumar Das Ranjan Kumar Manna |
| author_sort | Dibakar Bhakta |
| collection | DOAJ |
| description | Hilsa, Tenualosa ilisha is a highly prestigious fish for esteemed delicious taste, high market demand and price. It forms an important fishery of funnel-shaped 72 km long Narmada Estuary. Rapid decline in hilsa catch has been recorded in the Narmada Estuary over last few decades. Hilsa catch was recorded 5180 ton in 2006–07 that reduced to only 419 ton in 2014–15. Pre-impoundment of dam showed that T. ilisha contributed to the tune of 977.1 to 3727 ton from 1974–75 to 1982–83 and the highest catch of hilsa was 15319 ton during 1993–94. Sardar Sarovar Dam started functional in the year 1994 which has impacted natural water flow of the river and resulted in a reduction of freshwater availability in the estuary; the development of sand bars at the mouth of the estuary also reduced the tidal ingress into the system; low depth, loss of breeding, nursery and feeding grounds, over fishing may be the most important factors affecting hilsa fishery in Narmada estuary. Catching of juvenile hilsa during winter by ‘Golava’ net (small meshed bag net) also led to a rapid decline in hilsa catch. To maintain the sustainable yield of hilsa, selective fishing and control of juvenile catch are the prerequisites along with maintaining regular flow from the dam. |
| first_indexed | 2024-12-10T05:51:16Z |
| format | Article |
| id | doaj.art-7d46be3e4d2a4c89b6da980b092a359e |
| institution | Directory Open Access Journal |
| issn | 2311-729X 2311-3111 |
| language | English |
| last_indexed | 2024-12-10T05:51:16Z |
| publishDate | 2018-04-01 |
| publisher | BdFISH |
| record_format | Article |
| series | Journal of Fisheries |
| spelling | doaj.art-7d46be3e4d2a4c89b6da980b092a359e2022-12-22T02:00:03ZengBdFISHJournal of Fisheries2311-729X2311-31112018-04-016156356810.17017/jfish.v6i1.2018.254Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, IndiaDibakar Bhakta0 Wakamban Anand Meetei1 Gopinathan Vaisakh2Sanjoy Kumar Das3Ranjan Kumar Manna4Regional Research Centre, ICAR-CIFRI, Vadodara 390 022, Gujarat, IndiaRegional Research Centre, ICAR-CIFRI, Vadodara 390 022, Gujarat, IndiaRegional Research Centre, ICAR-CIFRI, Vadodara 390 022, Gujarat, IndiaRegional Research Centre, ICAR-CIFRI, Kolkata 700 064, West Bengal, IndiaICAR-CIFRI, Barrackpore 700 120, Kolkata, West Bengal, IndiaHilsa, Tenualosa ilisha is a highly prestigious fish for esteemed delicious taste, high market demand and price. It forms an important fishery of funnel-shaped 72 km long Narmada Estuary. Rapid decline in hilsa catch has been recorded in the Narmada Estuary over last few decades. Hilsa catch was recorded 5180 ton in 2006–07 that reduced to only 419 ton in 2014–15. Pre-impoundment of dam showed that T. ilisha contributed to the tune of 977.1 to 3727 ton from 1974–75 to 1982–83 and the highest catch of hilsa was 15319 ton during 1993–94. Sardar Sarovar Dam started functional in the year 1994 which has impacted natural water flow of the river and resulted in a reduction of freshwater availability in the estuary; the development of sand bars at the mouth of the estuary also reduced the tidal ingress into the system; low depth, loss of breeding, nursery and feeding grounds, over fishing may be the most important factors affecting hilsa fishery in Narmada estuary. Catching of juvenile hilsa during winter by ‘Golava’ net (small meshed bag net) also led to a rapid decline in hilsa catch. To maintain the sustainable yield of hilsa, selective fishing and control of juvenile catch are the prerequisites along with maintaining regular flow from the dam.http://journal.bdfish.org/index.php/fisheries/article/view/254Sardar Sarovar DamTenualosa ilishafishing seasonNarmada estuary |
| spellingShingle | Dibakar Bhakta Wakamban Anand Meetei Gopinathan Vaisakh Sanjoy Kumar Das Ranjan Kumar Manna Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India Journal of Fisheries Sardar Sarovar Dam Tenualosa ilisha fishing season Narmada estuary |
| title | Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India |
| title_full | Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India |
| title_fullStr | Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India |
| title_full_unstemmed | Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India |
| title_short | Impacts of water regulation on Tenualosa ilisha in the Narmada Estuary, Gujarat, India |
| title_sort | impacts of water regulation on tenualosa ilisha in the narmada estuary gujarat india |
| topic | Sardar Sarovar Dam Tenualosa ilisha fishing season Narmada estuary |
| url | http://journal.bdfish.org/index.php/fisheries/article/view/254 |
| work_keys_str_mv | AT dibakarbhakta impactsofwaterregulationontenualosailishainthenarmadaestuarygujaratindia AT wakambananandmeetei impactsofwaterregulationontenualosailishainthenarmadaestuarygujaratindia AT gopinathanvaisakh impactsofwaterregulationontenualosailishainthenarmadaestuarygujaratindia AT sanjoykumardas impactsofwaterregulationontenualosailishainthenarmadaestuarygujaratindia AT ranjankumarmanna impactsofwaterregulationontenualosailishainthenarmadaestuarygujaratindia |