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 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%.

In retail fish markets in Kolkata city proper, suburbs and neighbouring districts, pituitary glands are collected as a profession from the heads of mature fish. The preserved glands are used to induce breeding via hypophysation in carp hatcheries throughout West Bengal, playing an important role in the availability of carp seed to support aquaculture operations. This article describes the livelihoods of pituitary gland collectors and traders in West Bengal, India.

Clarias magur, locally known as magur, is a well-preferred medium sized catfish among Indian consumers. Difficulties such as shortages of effective inducing agents and the erratic response to induced breeding, low survival in different life stages, slow growth, and lack of effective feeds have been a bottleneck for the wider adoption of this fish by farmers. There has been considerable research to simplify the technology and disseminate it among farmers over the last decade. This article summarises these attempts and describes the present level of its technology practiced in India.

In this issue:

Framework for participatory linkage of marine ornamentals germplasm conservation to livelihoods: Is community aquaculture an inclusive option? Induced breeding of farm-bred and pond-raised critically endangered peninsular carp, Hypselobarbus pulchellus; A way forward for utilisation of aquatic genetic resources in Asia-Pacific: Synthesis from deliberations during the Regional Workshop on Underutilized Fish and Marine Genetic Resources and their Amelioration 2019; Cast nets: The dominant active fishing gear in the Kashmir Valley; Moyna model of major carp farming in Purba Medinipur District, West Bengal, India; NACA Newsletter.