“Building from bottom” a success story

Rajkot Municipal Corporation (RMC) is a local government committed to provide basic infrastructure facilities including entertainment facilities to the people of the city. RMC is very well known for managing the city by using private sector participation as well as introduction of innovative mechanisms in management to serve people efficiently. City has prepared different plans for improving services and to nullify the gap between services and demands. The sole responsibility of Solid Waste Management (SWM) in the city lies with the Soild Wate Management department of Rajkot Muncipal Corporation (RMC)

Fish growth parameters and their monitoring

Recent studies have predicted that fish consumption in developing and developed countries will increase by 57 percent and 4 percent, respectively. Rapid population growth, increasing affluence and urbanization in developing countries are leading to major changes in supply and demand for animal protein, from both livestock and fish. The need for suitable sites has resulted in the cage aquaculture subsector accessing and expanding into new untapped open-water culture areas such as lakes, reservoirs, rivers and coastal brackish and marine offshore water

Fishery and estimation of potential yield of Bombayduck Harpadon nehereus (Hamilton, 1822) along Gujarat coast, India

Bombayduck Harpadon nehereus (Hamilton, 1822) is one of the key fishery resources landed along the Indian coast with uniqueness in distribution and exploitation. The resource is known for discontinuous distribution, majorly along the north-west and north-east coasts of India. Gujarat is the lead state to contribute nearly 64.72% (72,949 t) to the total national landings of the resource (11,2705 t) in 2018. Dolnet gear contributes nearly 95% of the total landings of the resource in the region. The landings and the corresponding catch per unit effort (CPUE) showed a fluctuating trend over the study period of 1994-2014. The catches fluctuated between 35,235 t (2016) and 92,188 t (2004), whereas the CPUE oscillated in the range of 15 to 20 kg h-1 (1998) and 30.76 kg h-1 (2003). The period of 1994-2000 was the most productive period with an average catch of 72,133 t, whereas the succeeding decade was the leanest phase with an average annual catch of 50,035 t. The estimated potential yield (= maximum sustainable yield, MSY) was estimated at 73,700 t and 70,108 t using the Bayesian surplus production model (CMSY & BSM) and basic Schaefer surplus production model respectively. The present catch and exploitation levels were found to be close to the optimum level and a further increase in effort for the resource is not recommended

Trainings under AINP Mariculture

Vizhinjam Research Centre organized a training on Recent Advances in Mariculture for five days from 9th to 13th January 2017. Fisheries officers deputed from the Department of Fisheries, Government of Kerala and a few selected progressive farmers participated in this training besides selected scientists working for cage farmin

Morphological differentiation of closely resembling ariid species, Arius venosus and A. sumatranus

In Indian waters ariids (Siluriformes/ Ariidae) are represented by 9 genera and 25 valid species. The genus Arius is the most diverse with eight species reported from Indian waters which can be categorised in two broad groups. One having elongated teeth patches with globular teeth comprising of five species- A. jella, A. maculatus, A. gagora, A. malabaricus and A. arius is clubbed under maculatus complex. Other group included species like A. subrostratus, A. sumatranus and A. venosus having smaller teeth patches with villiform teeth (non-maculatus complex) (Dhanze and Jayaram. 1982). The non-maculatus complex does not contribute much to the commercial fishery barring A. subrostratus which forms minor fishery along southwest coast of India. A. subrostratus can be easily differentiated from rest of the con-generic members by smaller barbels and long snout with small mouth

Potential Yield Estimates for marine fisheries of Gujarat

Seagrass meadows worldwide are declining fast, taking with them many species which depend on these underwater prairies as their habitat and feeding as well as breeding grounds. Our results obtained on the biomass and density of seagrass vegetation in the reef and lagoons of Agatti, Chetlat, Kavaratti and Kiltan Islands of U.T. Lakshadweep, indicated gradual but steady shrinking of seagrass meadows. The percentage reduction in density of seagrass meadows since December 2011 to November 2015 was estimated at 88.5% in Agatti, 88.7% in Chetlat, 78.4% in Kavaratti and 81.3% in Kiltan. Wet biomass of parts below the sediment were always higher than the epigeal parts comprising leaves, stem and bracts. The possible reason behind this decline in seagrass biomass might be grazing, deterioration of water quality due to increased anthropogenic activities and climate change. This situation calls for urgent steps to monitor the ecology and physico-chemical parameters of water and sediment in the existing meadows and to undertake immediate habitat restoration programmes

Taxonomic note on the Indian species of genus Netuma

In Indian waters, genus Netuma is represented by two species namely N. bilineata and N. thalassina (Order: Siluriformes, Family: Ariidae). Rounded shout, thin lips, inconspicuous median longitudinal groove, and higher anal fin ray count (16-19) are characters of N. bilineata while N. thalassina has conical snout, clearly visible median longitudinal groove and lower anal fin ray count (13-15). Prior to the erection of N. bilineata (earlier considered as synonym of N. thalassina) as valid species, Indian workers had difference of opinion regarding the representation of species under this genus from Indian waters

Artificial Reef fabrication works in Gujarat

A consultancy project titled 'Artificial Fish Habitat Based Marine Ecosystem Restoration in the Inshore Areas off Bhadreswar, Kutch District, Gujarat ' sponsored by the Department of Fisheries, Govt. of Gujarat has been initiated by Veraval regional centre

Oil Spill Occurrences along Indian Exclusive Economic Zone

Oil Spill Occurrences along Indian Exclusive Economic Zon

तकनीकी पुत्स्यिका: खुला समुद्रीय पिंजरा पालन

Technical Guide: Open Seacage Farmin