Loricariid catfish species of the genus Pterygoplichthys, known in the aquarium trade as 'plecos' and 'algae eaters', have extensively invaded and proliferated in the East Kolkata Wetlands in West Bengal. Loricariids have capacity to alter the ecosystem and biodiversity of invasion sites, by physically altering the invaded habitats and by competing with native animals for food and space. The aquarium trade pathway is the most significant source of loricariid introductions globally. This article discusses the invasion of loricariid catfish in the East Kolkata Wetlands, and the environmental and economic impact on local fishers.

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.

This article presents available information regarding the present status of chocolate mahseer and the conservation measures been undertaken in the East Garo Hills of Meghalaya. A total of 54 sanctuaries have been established since 2012 in Garo, Khasi and Jaintia hills under the Meghalaya State Aquaculture Mission project of the Fish Farmers Development Agency. The sanctuaries have been established with the objective to preserve and enhance aquatic biodiversity, protect indigenous fish species, preserve breeding and feeding grounds, and serve as tourist attractions to provide livelihood opportunities.

In this issue:

Cooperation with the Bangladesh Shrimp and Fish Foundation; Global Conference on Aquaculture 2020 update; Quarterly Aquatic Animal Disease Report, January-March 2019; A fresh look at inland fisheries and their role in food security and livelihoods; Tuskfish 2 Beta: Testers wanted; APAARI Regional Workshop on Underutilized Fish and Marine Genetic Resources and Their Amelioration; Joint Research Project on Utilization of Thailand Local Genetic Resources to Develop Novel Farmed Fish for Global Market; Impacts of climate change on fisheries and aquaculture.

In this issue:

30th NACA Governing Council Meeting, China; Dr Huang Jie elected as the next Director General of NACA; Expert Consultation on Genetically Responsible Aquaculture; Launch of AGRISI: Aquatic Genetic Resource System of India; Aquatic animal epidemiology training course held at NBFGR; Asia-Pacific Laboratory Proficiency Testing Workshop; Proceedings of the FishAdapt Conference; Quarterly Aquatic Animal Disease Report, July-September 2018; Centex Shrimp International Training Course on Biology and Pathology of Penaeid Shrimp; INFOFISH World Shrimp Trade Conference and Exposition.

AGRISI, a new information system on aquatic genetic resources of India, has been launched by the National Bureau of Fish Genetic Resources. AGRISI is a unique platform presently covering 3138 native fish species of India. The system provides information on systematics, biology, distribution, nutrition, nutrition, and other characteristics. AGRISI includes information on museum specimens, and accessions from different NBFGR repositories. These include data on germplasm, cell lines and links to other molecular resources developed under the National Agricultural Bioinformatics Grid such as the Fish Barcode Information System.

A Regional Expert Consultation on Genetically Responsible Aquaculture was convened by the ICAR National Bureau of Fish Genetic Resources and NACA, from 26-27 February. The immediate objective of the consultation was to discuss mechanisms for establishing quality seed production systems to improve hatchery and on-farm genetic diversity. A long-range objective is to establish networks of registered broodstock holdings. Linked via IT systems, such networks will form a virtual global aquaculture gene pool that can, collectively, sustain high genetic diversity and adaptive capacity, while checking inbreeding depression.

Anecdotal evidence suggests that apple snails were first introduced into Timor-Leste as food by migrants, although there is no exact information on when this occurred. The first reported damages to rice crops from the snails was around 1985 in the south and west. There is an urgent need for systematic surveys on the areas invaded and the rice crop losses. Synthetic molluscicide formulations are used to control snail populations, along with a variety of non-chemical management interventions.

The Indian Council of Agricultural Research (ICAR) and NACA will convene the consultation from 26-27 February 2019. The consultation will be hosted by the ICAR National Bureau of Fish Genetic Resources (NBFGR) in Lucknow, India. The aim of the consultation is to find ways to assure genetic quality in seed production systems. Experts will discuss broodstock management and mechanisms to verify seed origin and quality. The goal is to empower farmers and monitoring agencies with provision of quantifiable standards.

FAO and NACA have signed an agreement to convene a global conference on aquaculture in 2020. This will be the fourth conference in a series that began at the dawn of the industry in Kyoto, 1976. Aquaculture 2020 will be held late in the year in China. Arrangements, programme and partner details will be announced via the NACA website in due course.

An Expert Consultation on Invasive Alien Fish Species: Need for a Risk Benefit Assessment and Management Framework for Healthy Freshwater Systems will be organised on 19 December 2018 in New Delhi, India. The consultation will flag the need for an equilibrium between access to non-native germplasm and the minimisation of risk to ecosystems and native fish diversity from such introductions. As a major outcome, an objective tool is expected to be developed, which can be used to evaluate prospective introductions and support decision making.

Aquaculture has seen spectacular growth in recent years, and Aqua 2018 celebrated aquaculture’s role as one of the most important food industries worldwide. Held 25-29 August in Montpellier, France, Aqua 2018 brought together scientists, practitioners, students, industry and civil society to highlight the latest global developments in aquaculture research and innovation.

This short research note provides insights on the invasive apple snails (Pomacea spp.) and rice cultivation in Brunei Darussalam. This freshwater invasive snail was first detected in 2009, but it was never introduced intentionally. Since then their population has increased swiftly and spread to almost all the rice areas across the country, becoming a major pest of irrigated transplanted rice. Research and collaboration among infested countries is important for accurate species identification and better understanding of the invasion pathways.

In this issue:

Rearing of spotted scat and pearlspot in coastal West Bengal, India; harvesting Eurayle ferox (makhana) from wetland fisheries of Assam; prospects of ornamental fish culture in seasonal water bodies in Assam; production of tubifex, a new dimention in aquaculture in feeding juvenile fish; invasive apple snails in Brunei Darussalam; aquaculture trends and opportunities in Sindh, Pakistan; NACA Newsletter.

NACA’s 29th Governing Council Meeting was held in the Maldives capital, Malé, from 26-27 June, with attendance by fifteen member governments. This was the first official NACA meeting in the Maldives, since it became a member in 2014, and also the first time that most of the delegates had visited the country, affording participants a fascinating glimpse of a very different lifestyle in the archipelago, and a very different development context.

Mahseer in recreational fisheries and ecotourism in India; Small-scale aquaculture of wild fish in Myanmar: A preliminary report from the Bago Region; Current know how and possibility for growout culture of an endangered catfish, Horabagrus brachysoma; Accelerated poverty alleviation of tribal households - cage fish farming by displaced fishers in reservoirs of Jharkhand; Adaptive learning in sustainable aquaculture: Best practices for small-scale shrimp farmers in Thailand; NACA Newsletter.

In this issue:

Marine finfish seed production and growout training course, Thailand; global fish passage forum to include first symposium on hydropower and fish; International Workshop on Rehabilitation, Propagation and Conservation of Mahseer, India; World Brackishwater Aquaculture Conference, January 2019, India; Offshore Mariculture Asia 2018, 15-17 May, Singapore; Video lectures: Regional Training Course on Culture-based Fisheries in Inland Waters; Youth and Fish Drawing Competition Art Book; Report of the Sixteenth Meeting of the Asia Regional Advisory Group on Aquatic Animal Health.

Some varieties of freshwater fish have low growth potential but remain economically attractive due to market preferences. The endangered catfish Horabagrus brachysoma is one such fish, which has limited production but high market demand, and a number of favourable biological characteristics. This article provides guidelines for the culture of this catfish in captivity including for the breeding, nursery, stocking and growout, including advice on pre- and post-stocking practices, harvesting and health management.

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.

Despite their abundance at one time in India and other Asian nations, wild mahseer populations have been declining because of degradation of aquatic ecosystems, urbanisation and indiscriminate fishing. Wild mahseer are populations are presently struggling for their mere existence.

An international workshop on mahseer conservation, propagation and rehabilitation will be held in Bhimtal, India from 23-24 April 2018. The workshop is organised by the ICAR-Directorate of Coldwater Fisheries Research in collaboration with the Coldwater Fisheries Society of India.