Inland aquaculture

Information relating to inland aquaculture practices.

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Genetic management of Indian major carps

Collectively carps represent the largest global aquaculture sector, contributing over 20 percent of global aquaculture production. The Indian major carps including catla (Catla catla), rohu (Labeo rohita) and mrigal (Cirhinnus mrigala) are cultured widely across the Indian sub-continent with the main culture system being a multi-species polyculture in ponds, often including other carp species. This production sector is supported by major seed supply systems producing over 50 billion seed per annum. This case study analyses genetic management of Indian major carps since they were first domesticated with the development of hypophysation techniques in the 1950s. A review of literature and a survey of common hatchery practices identifies significant problems prevalent in the sector brought about by a lack of application of best practices in genetic management resulting in loss of genetic diversity, inbreeding and uncontrolled hybrid introgression.

Aquaculture Asia Magazine, April-June 2023

In this issue:

Aquaculture and fisheries perspectives in Arunachal Pradesh; Present status of medium saline ‘bheri’ fishery and integrated mangrove-aquaculture in West Bengal, India: A short study: Part 2; Transforming waste to wealth: An onsite demonstration of transforming fish waste into fish fertiliser to tribal communities of Jharkhand; Innovative fish sale improved livelihoods at Jurala dam in Telangana, India; Pengba, Osteobrama belangeri – a candidate species for diversification in aquaculture; First report on successful captive breeding of peacock eel, Macrognathus aral; NACA Newsletter.

First report on successful captive breeding of peacock eel, Macrognathus aral

The peacock eel Macrognathus aral is a popular ornamental and food fish species found in the Eastern Ghat region of India and Pakistan, Sri Lanka, Bangladesh, Nepal and Myanmar. The species is classed as Low Risk near threatened in the CAMP report. Peacock eel inhabits shallow waters of plains, wetlands, canals, paddy fields, beels and slow-moving rivers with vegetation. Captive breeding is the only way to fulfil demand and protect wild stocks. This article documents the first successful reported captive breeding of M. aral, embryonic development and larval rearing.

Pengba, Osteobrama belangeri – a candidate species for diversification in aquaculture

Pengba (Osteobrama belangeri) is a near-threatened minor carp endemic to eastern Manipur in India, Yunnan and Myanmar. A migratory species, wild populations of pengba have declined due to the construction of dams and barranges, and possibly also due to the introduction of alien species. Pengba is highly preferred by consumers and attracts a high market price. This article describes the feeding habits and reproductive biology of pengba, and aquaculture techniques for seed production and grow out in monoculture or polyculture. 

Innovative fish sale improved livelihoods at Jurala dam in Telangana, India

About 200 families that were displaced by construction of the Jurala reservoir have found new employment in fishing and value-added industry. Local people who up fishing add value to their catch by keeping it for live sale in locally-manufactured cages. Local people also use the live fish to prepare a variety of fresh fish dishes, servicing the tourist trade attracted to the reservoir. Over 400 people are now directly or indirectly self-employed through these practices. This article describes the new practices and the improved income that is being generated by fishers and local entrepreneurs.

Present status of medium saline ‘bheri’ fishery and integrated mangrove-aquaculture in West Bengal, India, Part 2

This is part 2 of an article describing farming practices in bheri systems in West Bengal, India, including their integration with mangrove aquaculture. Since the late 1960s, brackishwater rural aquaculture in West Bengal grew and improved at a fast rate, from an extensive method of farming to a modified-extensive method. Part 2 discusses brackishwater polyculture in South 24 Parganas, including the experiences of farmers implementing an integrated mangrove-aquaculture project, and information on local bheri fisheries derived from published articles.

Aquaculture and fisheries perspectives in Arunachal Pradesh

Arunachal Pradesh is a hill state with a population of 1.38 million in far north-eastern India. With climate ranging from tropical to alpine across a steep altitudinal gradient, the state has a high fish biodiversity and a wide range of aquaculture systems and fishing practices. Both indigenous and exotic species are farmed and fished.

This article describes the species, aquaculture systems and capture fisheries practiced in Arunachal Pradesh as well as their future prospects for further development.

Aquaculture Asia Magazine, January-March 2023

In this issue:

Augmenting entrepreneurial attitude among tribal women of Jharkhand through a skill development programme in fish value added products; Culture of hilsa, Tenualosa ilisha in freshwater ponds: Progress and prospects in farming practice; Present status of medium-saline ‘bheri’ fishery and integrated mangrove aquaculture in West Bengal, India: A short study, Part I; Information for farmers on yellow tail catfish, Pangasius pangasius, for easier captive production; Captive breeding and larval rearing of Cirrhinus reba, a small indigenous fish of aquaculture importance; NACA Newsletter.

Present status of medium-saline ‘bheri’ fishery and integrated mangrove aquaculture in West Bengal, India, Part I

Since the late 1960s, brackishwater rural aquaculture in West Bengal grew and improved at a fast rate, from an extensive method of farming to a modified-extensive method. The indigenous bheri fishery is a well-known extensive aquaculture system throughout all coastal states of India. Bheri fishery isn’t a capital-intensive practice. This article describes farming practices in bheri systems in West Bengal, India, including their integration with mangrove aquaculture. A second part of this article will be published in the next issue.

FAO/NACA workshop to developing a regional strategy for aquatic organism health using progressive management pathways

On 28-29 November FAO and NACA collaborated on a virtual workshop to develop a regional strategy for aquatic organism health, using a progressive management pathway for improving aquaculture biosecurity. The workshop was held under the auspices of the project “Responsible use of fisheries and aquaculture resources for sustainable development component 3: Biosecurity and health management”. The workshop involved 31 experts from 16 countries, including national focal points, FAO and NACA. The objectives of the workshop were to: Present and analyse country responses to a self-assessment survey on biosecurity and health management capacity and performance; to provide guuidance to country participants on conducting a SWOT analysis; and to prepare a detailed plan for Phase II of the initiative.