The correct answer is: d) All of the above.
The Department of Fisheries in Bihar promotes sustainable fishing and aquaculture through a variety of means, including providing subsidies for fishing gear, stocking of fish in water bodies, and training and capacity building of fisherfolk.
Subsidies for fishing gear can help to reduce the cost of fishing, making it more affordable for small-scale fishers. This can help to increase the number of people who are able to participate in fishing, and can also help to improve the quality of life for those who are already involved in the industry.
Stocking of fish in water bodies can help to increase the population of fish, which can provide a source of food and income for fishers. It can also help to improve the quality of the water, as fish can help to remove pollutants and improve the oxygen levels.
Training and capacity building of fisherfolk can help them to improve their skills and knowledge, which can lead to increased productivity and profitability. It can also help them to become more aware of the importance of sustainable fishing practices, which can help to protect the environment and ensure the long-term sustainability of the fisheries sector.
In addition to these measures, the Department of Fisheries in Bihar also promotes sustainable fishing and aquaculture through a variety of other means, such as research and development, extension services, and public awareness campaigns.