Daniel Dani

Tamil Nadu Dr. J. Jayalalithaa Fisheries University · Kanyakumari Parakkai Center for Sustainable Aquaculture

A survey was carried out at Parakkai Freshwater Lake, Kanyakumari, Tamil Nadu, India (8.1519°N; 77.4544°E) to study the freshwater fish biodiversity. The survey manifested the invasion of South American Armored Suckermouth catfish (Pterygoplichthys disjunctivus) native to Madeira River basin of South America province to the lake. The invasions of t...

A 60-day feeding experiment was conducted to evaluate the dietary effect of vitamin C on non-specific immunity and stress responses in striped catfish, Pangasianodon hypophthalmus juveniles with the average body weight of 3.23 ± 0.01 g to 3.38 ± 0.01 g. Seven graded levels of diets supplemented with 0, 17.5, 35, 70, 175, 350 and 700 mg vitamin C/kg...

In the aquaculture practices, there are multiple stressors to fish; as a result, stress is an unavoidable component in the fish farming. Haematological parameters are important tools that can be used as an effective and sensitive index to monitor physiological and pathological stress conditions in fish and have proven as a valuable index for the qu...

The present study evaluated the anaesthetic activity of tobacco (Nicotiana tabacum) leaf dust in fish. GIFT tilapia was used as an experimental animal with the total study duration of 24 hours. The fish size of 4.58±0.68 g was randomly distributed into the 20-liter plastic tub at a stocking density of 10 fishes per container. Anaesthetics were adde...

A sampling was carried out at Madambakkam Freshwater Lake, Chennai, Tamil Nadu, India (12°56'54.0672'' N; 79°55' 17.1012''E) to study the fish biodiversity. It was found that the lake was infested with an exotic Cichlid, Cichlasoma trimaculatum native to South America. Cichlasoma trimaculatum is a predacious invasive fish that eats any smaller fish...

The aquaculture industry is growing fast at a rate of ~9% per year since the 1970s. However, this industry has come under scrutiny for contribution to environmental degradation and pollution. As a result, requirement for more ecologically sound management and culture practices remains fully necessary. Moreover, the expansion of aquaculture is also...

This study provides the first record of Lutjanus xanthopinnis Iwatsuki, Tanaka et Allen, 2015 from the Andaman Islands. The new record is based on 2 specimens, 123 and 154 mm SL, captured inshore of Dignabad, Port Blair, Andaman Islands, India. The fish were examined, described, and illustrated. Morphometric and morphological data confirmed that th...

Gobiid fishes are one of the dominant and cryptic taxa in tropical coral reefs. Andaman and Nicobar Islands of India consist of fringing and barrier reefs which harbour huge fish diversity. Due to morphological ambiguity and cryptic life styles, identification and delimitation of gobiids is difficult. In the present study, we report the occurrence...

Fish feed becomes economically viable, only when the fish is able to derive maximum energy from it. With the rising expansion of the aquaculture industry, feed formulators have been trying their best to substitute fish meal with cheaper plant-based proteins. However, the presence of anti-nutritional factors in plant-based proteins is a hurdle. This...

A 60-day feeding trial was conducted to know the effect of vitamin C on the hematological responses of Pangasianodon hypophthalmus juveniles during pre-and post-challenge conditions with Aeromonas hydrophila. A total of seven purified diets were prepared with 0 (control), 17.5 (T1), 35 (T2), 70 (T3), 175 (T4), 350 (T5) and 700 (T6) mg ascorbic acid...

Until recently, fish meal was the chief protein source in the fish feed for diverse reasons collectively for its high protein content, excellent essential amino acid (EAA) profile, better nutrient digestibility, lack of anti-nutritional factors (ANFs), low price and ease in its availability. However ideal protein source of fish meal for fish feed i...

A sixty-day feeding trial was conducted to determine the ascorbic acid (AA) requirement for growth of striped catfish, Pangasianodon hypophthalmus juveniles. Seven iso-nitrogenous and iso-energetic (370 g protein per kg and 19.6 MJ/kg) purified diets were prepared with different levels of ascorbic acid such as control (0), T1 (17.5), T2 (35), T3 (7...

The present study documents the unique traditional ways of shark fishing undertaken by Thoothoor fishers. Thoothoor is a coastal village situated in Kanyakumari district of Tamil Nadu, where the fishermen of this village are well known for their unique deep sea shark fishing, using mechanized fishing boats by hook and line method for earning their...

In this study, the effect of three different probiotics supplemented to biofloc on hematological and body index parametersof Etroplus suratensis over a period of 60 days was assessed. A total of 180 fishwith mean weight of 7.3 to 7.8 g were exposed to 6 different groups, viz. control (Clear water), T1 (Only biofloc), T2, T3, T4 consist of biofloc w...

The successful entrepreneurship of aqua farming relies on the production of aquatic animals in the cost effective, social and environmental friendly approach. Nevertheless, presently fish farming is suffering from various problems related to these. Biofloc technology and/or application of probiotics provide promising results to aquaculture in terms...

The present study was carried out for a period of 95 days with the aim to evaluate the length weight relationship of goldfish youngoneswhich reared under the clear and biofloc waters. The experimental fishes were stocked at the rate of 500 numbers per tank. Fishes fed to 5% of their body weight with commercial pellet feed containing 32% Crude prote...

Nutraceuticals to aquaculture supply a potent chance to interchange antibiotics owing to its traits of boosting the immune gadget in conjunction with growth-promoting capability. The availability of nutraceuticals improves the health status; consequently, supply healthful blessings to resist animals free from diseases. This article offers detail on...

The present study evaluated the antioxidative and biological activity of the aqueous, ethanolic and methanolic extract from leaf and root of aromatic herb, Houttuyniacordata (HC). The yield were found to be 7.67±0.33 to 9.33±0.58 %, 9.00±0.58 to 10.67±0.33 % and 11.33±0.33 to 13.67±0.58 % of root to leaf in different solvent of aqueous, ethanol...

Aquaculture is basically rearing of aquatic animals, majorly fishes. Fish is very important animals and considered as a poor man protein food due to its lesser price. Fish consumers are greatly increasing with the current annual per capita consumption of 20/Kg. From the past 50 years, around 90% of the fish populations were destroyed by commercial...

Ornamental fish culture in the glass tank is a very common custom around the globe mainly due to their bright coloration and natural stress reliever for the heart patients. Carotenoids are the major compound which imparts coloration to the aquatic animals. Fish lives in the natural water have good sources of carotenoid pigments as compare to fish r...

With the increasing human population, fish will be cheapest protein food source which considerably contribute to human sector for the minimization of hunger and malnutrition. This situation to take place, it is essential to produce fish with minimum cost, so that it will reach poor people; need significant input from aquaculture. Feed accounts 50 t...

The rearing of ornamental fishes is a common custom among the many people due to their coloration. Though many ornamental fishes are colorful in nature, when it comes to artificial tanks, they lose their bright coloration than that of wild. Despite many pigments are being a part of the ornamental feed for many years, the capacity of animals to acqu...

This review commences by briefly describing the importance of microalgae as a potential feed ingredient in the fish diet. Microalgae are a source of nutrients for fish as well as shrimps. Live microalgae for feeding are being practised in the aquaculture for long ago; but the concerns of using this technique are economics, preservation and storage....

Nucleotides play an important part in the fish, including transfer of genetic information, metabolism of energy, signalling of cells. Studies on nucleotides in fish evolved during the early 1970s. However, it focused mostly on their role in feeding stimulation and very less on other possible functions. Newly, discovering its other beneficial functi...

Aquaponics is matrimony between aquaculture (fish farming) and hydroponics (crop farming) in order to attain mutual benefit from each other. This system ensures the production of fish together with crops. Basically, it is a "clean and green" technique of rearing fish and plants together in a closed re-circulating system. The fish are raised in a ta...