R.N. Mandal

Hilsa culture in Freshwater pond after boat breeding in river.

Hilsa, Tenualosa ilisha is a fascinating food fish. Its charming lustre, culinary flavour and medicinal importance make it a favourite of the people of West Bengal, India and Bangladesh in particular. However, it has complex habitat requirements, migrating between marine, estuarine and riverine waters. Usually, adults mature in the sea, and then ve...

Hilsa shad, Tenualosa ilisha, a euryhaline fish species, undertakes long migrations crossing diverse water bodies from river to sea to fulfil its life cycle. To culture hilsa in captivity, one important factor among others is to rear larvae up to fry stage in freshwater. Chlorella is one of the best of a few microalgae well accepted by Hilsa larvae...

Hilsa, Tenualosa ilisha , is a commercially important high valued food fish in South Asian countries. Recently, much attention of this species has been paid for its conservation through captive culture due to its declining trend of population. Insufficient number of Hilsa seeds is the major bottleneck for its captive culture. This study aimed at de...

Success story on survival of climbing perch through live food.

A 22 d experiment was carried out to study the protein requirement of Ompok bimaculatus larvae (weight 0.11±0.01 g; length 20.49±0.70 mm). Three different formulated feeds were prepared with graded levels of crude protein i.e., with low (35% CP; LP), medium (40% CP; MP) and high (45% CP; HP) crude protein levels. The water quality parameters were o...

The proximate and fatty acid composition of Ompok bimaculatus (pabda) brood fish, egg and larvae were assayed to have an insight of the nutrient metamorphosis during early life of the species visa -vis parental nutrient composition. The collected brood fish, eggs and larvae were analyzed for proximate and fatty acid composition. The data revealed t...

Hilsa shad, Tenualosa ilisha has received much attention for their conservation through culture. Transportation mechanism of eggs and larvae is one of the major bottlenecks of hilsa culture. The present study aims to find out the best transporting system, stocking density (SD) and early life stages that record maximum survival after transport neede...

The problem of sewage disposal has received great attention worldwide. The raw sewage contains a variety of high inorganic and organic matters that affect natural water environment. To mitigate such problem, sewage may be recycled through aquaculture practice. Sewage recycling in aquaculture enhances water productivity through nutrients input. Prop...

Fossil records indicate that mangrove ecosystems first appeared at the beginning of the late Cretaceous period [146 to 100 million years ago (Ma)], and have considerable changes during more than 55 million years. Spreading over more than 118 countries in the tropics, subtropics and temperate regions, mangroves or coastal tidal forests now dwindle a...

Introduction of exotic fishes outside of their natural range to increase production or profitability increased rapidly since last century. In India also more than 350 exotic fishes were introduced legally or illegally mainly to boost aquaculture and aesthetics of aquarium. Though few exotic fishes contributed positively to the fisheries, particular...

Rapid spread and population increase of suckermouth armoured catfishes belonging to the genus Pterygoplichthys (Loricariidae) in the East Kolkata Wetlands (EKW) in recent times is of increasing concern, because of the notable possibility that these non-native catfishes are adversely affecting fish germplasm and commercial fishery of this unique eco...

Higher water temperature, sea-level rise and lower precipitation are the manifestations of climate change. Higher temperatures of water and changes in extreme events, like floods and droughts, are responsible for affecting water quality. These extreme events can also pollute water from different sources, like sediments, nutrients, pathogens, pestic...

Sundarbans is the largest single block of mangroves forest in the globe, stretching over both India and Bangladesh. The entire land mass is situated in the estuary of Ganges-Brahmaputra-Meghna (GBM) river systems that carry the world’s largest sediment load to the Bay of Bengal. The present article reviews the environmental characteristics and biol...

Unauthorized introduction of South American suckermouth armoured catfishes (Loricariidae) of the genus Pterygoplichthys into the waste water bheries of East Kolkata Wetland, West Bengal has led to their noticeable naturalization in this ecosystem. A total of 439 specimens collected during this study were externally evaluated for affirming the speci...

Unauthorized introduction of South American suckermouth armoured catfishes (Loricariidae) of the genus Pterygoplichthys into the waste water bheries of East Kolkata Wetland, West Bengal has led to their noticeable naturalization in this ecosystem. A total of 439 specimens collected during this study were externally evaluated for affirming the speci...

Municipal wastewater generated by household activities is a storehouse of fertilizers often causing eutrophication of aquatic systems and environmental degradation if not properly managed. Aquaponics is a green and sustainable eco-technological approach integrating aquaculture in hydroponic system and can play a pivotal role in harnessing nutrient...

Freshwater is indispensable for sustenance of life on earth, but is rapidly becoming a scarce resource. A centre on wastewater aquaculture was established during the 1970s in Rahara, Kolkata, which initiated research on recycling of sewage water for production of fish through nutrient recovery. Huge volume of sewage water has been treated through d...

This volume provides state-of-the-art information on soil-water interactions in wastewater systems, characterization of wastewater, modes of treatment, safety of wastewater use, water conservation technologies involved in recycling of sewage in fish culture, biogeochemical cycling bacteria and nutrient dynamics, ecosystem resilient driven wastewate...

We surveyed the fish farmers of five states, viz. Andhra Pradesh, Karnataka, Gujarat, Odisha and West Bengal of India for adaptation and mitigation strategies of climate change impact in freshwater aquaculture. In monsoon period especially when the cyclone occurred, overall 9% fish farmers responded regarding fish migration from one pond to another...

Aquatic ecosystem possesses rich biodiversity of economically useful plant and animal resources of biological origin. It also benefits us through generous supply of food, fodder vital bio-active components, recreational support and thatching materials. These also provide multiple ecological functions. These resources form the foundation on which th...

Singh, P., Paul, B.N., Rana, G.C., Mandal, R.N., Chakrabarti, P.P. and Giri, S.S. 2017. Incorporation of ghee residue as feed ingredient for labeo rohita fingerlings. Animal Nutrition and Feed Technology, 17: 127-136. A 96-day feeding trial was conducted in four ponds of 0.04 ha each to evaluate the efficacy of ghee residue based diet against contr...

The water budgets for some aquaculture systems in three states viz. Andhra Pradesh, Orissa and West Bengal were determined in the present study. The average evaporation and seepage loss from the aquaculture ponds throughout the year in Cuttack, Kendrapara, Jajpur, and Puri districts of Orissa were 164 ± 8.3 and 73 ± 16.5 cm, respectively; 152 ± 10...

Mercury and cadmium are among the major heavy metal pollutants, contaminating aquatic ecosystems. These heavy metals were investigated in the present study for sub lethal toxicity on freshwater fish, Catla catla. The acute toxicity tests were conducted by static renewal bioassay method and 96 h LC50 value of mercury and cadmium to C. catla seed wer...

Tubifex (Tubifex tubifex) was cultured in captivity using three different wastes: rice mill sludge (RMS), dairy sludge (DS), and raw cattle dung (RCD). Three experiments were conducted: 10, 20, and 30 days. A total of 100 g of tubifex at 62.5 g m −2 was inoculated in 1.6 m 2 fiberglass-reinforced plastic tanks. Comparing all production parameters,...

A 90-days feeding trial was conducted to study the effect of different levels of gftee residue (GR) on growh performance'of Labeo rohita iweiiles (Av. wt. 41.82+1.30g). Four diffelent feeds were formulated with different graded levels ofighee residue v2, o lcno), tz 1cR,r;, i+ (GR .) and 36o/o(G\u), respectively along with rice bran, mustard oil ca...

A 60-day feeding trial was conducted to study the effect of different levels of dried distillers grain soluble (DDGS) on growth performance of Cirrhinus mrigala fingerlings (average wt. 7.12±0.17g). Four different feeds were formulated with increasing levels of DDGS viz, 0 (DDGS0), 15 (DDGS15), 30 (DDGS30) and 45 (DDGS45) %, respectively .The net w...

In the context of freshwater scarcity, technological intervention is essentially required for recycling of wastewater, through the formulation of well planned strategies. Sewage fed aquaculture is one such strategy established as a reliable system with proven techniques by which used water is reused. In this system, sewage is treated by the techniq...

Rural people of the district of Cooch Behar, West Bengal are involved in making various crafts using raw material prepared from the wetland plant known as 'Pati bet', Schumannianthus dichotomus (Roxb.) Gagnep. and they earn a considerable amount of money for livelihood. Pati, used as raw material for preparation of crafts, is obtained from the bark...

A 90-day feeding trial was conducted to study the effect of replacement of soybean meal with breweries waste on growth performance of Catla catla fingerlings. Soybean meal was replaced by breweries waste @ 0, 15, 30 and 45% in the diet containing 55% soybean (Control) in treatments F 1 , F 2 , F 3 and F 4 , respectively. The net weight gain (g) was...

Shola, Aeschynomene aspera L. is an aquatic plant growing wildly in water logged areas of wetlands, but presently has been threatened one listed in Red list of threatened species by IUCN. Culturally, it has great importance in society because shola pith is obtained from this plant. Shola pith has certain traits such as milky white colour, softness,...

The lotus is very much a part of Indian cultural traditions. Its importance has long been recognized and it has been grown for use as food, medicine and also for cultural and religious activities. Significantly, the longevity of the lotus seed is phenomenal, with viable seeds dated as being 1300 years old. Seed germination of the lotus is very rare...

Published by Central Institute of Freshwater Aquaculture (ICAR), Bhubaneswar, Technical Booklet No 4, pp. 1-16.

About 50 species of aquatic macrophytes are recorded as food to herbivorous fish either directly or indirectly. These macrophytes represent several families of which major ones are Amaranthaceae, Araceae Typhaceae. In tropical and sub-tropical countries, there are about 40 numbers of fish species belonging to two major families viz., Cyprinidae and...

The study deals with the involvement of traditional knowledge pertaining to harvest and processing of Makhana (Euryale ferox Salisb.) -potential aquatic cash crop. A group of farmers, locally known as Mallah-a fisher community, is traditionally skilled with aquatic resource management. Inherently, they remain engaged in cultivation, harvest and pro...

Euphony of Sundarban mangrove lies in its picturesque beauty. Keeping aside Bangladesh part, Indian Sundarban mangrove forest alone have been dwindled about 58%, from 10,000 km2 to 4226.6 km2. By this time it has witnessed to the extinction of five important mammalian species along with ecosystems existing around them. In the array many others seem...

Pamphlet published by ICAR-Central Institute of Freshwater Aquaculture, Kausalyaganga.Odisha.

The present study deals with the effect of salinity on germination and seedling development of Heritiera fames Buch. Ham. under different salinity treatments (0-30 ppt), both in laboratory and in-situ. It shows that salinity level <5 ppt had positive impact on germination and seedling establishment, while higher salinity affects the germination pro...

Indian mangrove vegetation covers about 6,749 km2 along the 7516.6 km long coast line, including Island territories. The entire mangrove habitats are situated in three zones: (1) East Coast, about 4700 km2, (2) West Coast, about 850 km2, and (3) Andaman & Nicobar Islands about 1190 km2, with Lakshadweep Atoll. These three zones have been further ca...

The extent of genotypic and phenotypic diversity of Edwardsiella tarda isolated from pond sediment was assessed by SDS-PAGE, Plasmid Profiling and ERIC-PCR. SDS-PAGE of whole cell protein extracts reveals 20-23 discrete bands with molecular wt of 14-110 kDa. Several bands with molecular weight range of 38-83 kDa were present in all the isolates. Nu...

This study examined the food organisms found in the gut of freshwater mussels, Lamellidens marginalis L. A total of 34 taxa of food organisms were recorded, out of which 30 taxa belonged to phytoplankton and four taxa to zooplankton. Both the groups comprised three families each: Cyanophyceae (blue-green algae), Chlorophycea (green algae) and Bacil...

Members of the genus Pseudomonas are important phytopathogens and agents of human infections, while other strains and species exhibit bioremediation and biocontrol activities. Species-specific detection of Pseudomonas species in the environment may help to gain a more complete understanding of the ecological significance of these microorganisms. Th...