Q1. Describe the major estuaries found along the east and west coasts of India, and explain the important fisheries associated with them.
- Estuaries are brackish water zones where rivers meet the sea, serving as productive nursery grounds.
- East Coast estuaries (e.g., Sundarbans, Mahanadi, Godavari) are large, deltaic, and river-dominated.
- East Coast fisheries include *Penaeus monodon*, *Fenneropenaeus indicus*, Hilsa, mullets, and seabass.
- West Coast estuaries (e.g., Narmada, Tapti, Vembanad) are shorter, tidal, often funnel-shaped backwater systems.
Answer: Estuaries are highly dynamic and productive brackish water ecosystems formed where freshwater from rivers mixes with seawater. Along the Indian coastline, these transitional zones are vital for a diverse array of aquatic life, serving as crucial nursery, feeding, and breeding grounds for many finfish and shellfish species, supporting significant fisheries and aquaculture activities. Along India's East Coast, major estuaries are typically large, deltaic systems influenced by extensive river netw...