1 January 2000 | 2984 views
Content related to water quality.
A collection of subject tags relating to technical matters.
In this collection
Aquaculture Asia Magazine, January-March 2021
In this issue:
Exotic trout fisheries resources and potentialities in Uttarakhand; Scenario of captive production of Clarias magur in India; Strategies to reduce feed cost by improving gut health and nutrient utilisation of fish in aquaculture; Fish pituitary gland collection and supply as a vocation in West Bengal, India; Coral trout Plectropomus leopardus aquaculture research and fingerling production in Indonesia; Smartphone app improving smallholder shrimp farming practices in Bangladesh; NACA Newsletter.
Coral trout Plectropomus leopardus aquaculture research and fingerling production in Indonesia
Coral trout Plectropomus leopardus is an emerging exported grouper commodity in Indonesia. The demand for coral trout fingerlings has been increasing and the value of this species is the highest among groupers. However, the rearing of coral trout larvae is notoriously more ‘difficult’ than other groupers. This article describes research on coral trout larval rearing protocols conducted by the Institute for Mariculture Research and Fisheries Extension, which has achieved a survival rate of 12%.
Aquaculture Asia Magazine, January-March 2020
In this issue:
Mahseer sanctuaries of Meghalaya: A conservation and recreational perspective; Impacts of climate change on aquaculture in Vietnam: A review of local knowledge; Simple means of water aeration adopted by progressive fish breeders in West Bengal, India; Breeding striped snakehead (Channa striata) using the concrete tank method in the Cangkringan Area, Special Region of Yogyakarta; NACA Newsletter.
Simple means of water aeration adopted by progressive fish breeders in West Bengal, India
In India, West Bengal is the leading state in hatchery-based seed production (spawn, fry, advanced fry) of major carps and other economically important freshwater ﬁshes. Dissolved oxygen is the most critical parameter of water quality and basic necessity in ﬁsh hatcheries, nursery and grow-out ponds. Hatchery ﬁsh seed production can be limited by the dissolved oxygen content of circulating water. Progressive ﬁsh breeders in villages of West Bengal have overcome and eliminated this problem by designing simple but eﬀective means of water aeration to improve dissolved oxygen in hatchery water supplies, maximising survival of fertilised eggs, hatchlings and spawn. This article describes some of the techniques that have been adopted using low-cost and recycled materials.
We need an aquaculture internet of things
We are at the beginning of a new revolution, the Internet of Things (IOT): Smart networked devices and sensors that collect information about their surroundings, communicate with people and machines, make decisions based on programming models and interact with the physical world through control of switches, motors and actuators. Many of these devices are low-cost, literally a few dollars and they are getting cheaper all the time. The IOT offers new opportunities for the aquaculture industry to improve on-farm efficiency.
Global fish passage forum to include first symposium on hydropower and fish, December, Australia
The American Fisheries Society and the Environmental and Water Resources Institute of the American Society of Civil Engineers are holding this year's annual Fish Passage conference in Australia in December in collaboration with hosts Charles Sturt University and the New South Wales Government. The International Conference on River Connectivity, to be held in Albury from December 10 to 14 includes the First International Symposium on Hydropower and Fish Management.
Hydrobiological characterisation of water bodies for CBF development
A presentation on assessment of the suitability of water bodies for culture-based fisheries development.
Giant Prawn 2017
The fourth major international event on giant freshwater prawns was organised by the Asian Institute of Technology from 20-24 March 2007. The conference, organised by Salin Krishna and Michael New, built on a series of highly successful events that trace back to the very beginnings of the industry. The first conference, Giant Prawn 1980 brought together all those involved in freshwater prawn research and farming for the first time and set many priorities for future research and development.
Bangana dero: A potential indigenous fish species for diversification of carp culture in north east India for sustainable aquaculture
Bangana dero is one of the most popular indigenous minor carps in the north eastern states of India, fetching triple the market prices of Indian major carps. B. dero is a bottom feeder and feeds on insect larvae, molluscs, algae, zooplankton and detritus. Over the last two decades the occurrence of wild juveniles of this fish in Indian rivers has fallen drastically. A protocol for induced breeding, larviculture, nursery rearing and growout including polyculture of B. dero is described.
Directory of NACA's staff members and their contact details.