मराठी
CISCEISC (Arts) Class 12
प्रश्नपत्रिका३७२
पाठ्यपुस्तक उत्तरे१६६८१
महत्वाचे प्रश्न आणि उत्तरे५८७१
संकल्पना स्पष्टीकरण आणि व्हिडिओ९५३
टाइम टेबल१५
अभ्यासक्रम

Overview of Fisheries

Advertisements

Topics

Estimated time: 21 minutes
CISCE: Class 12

Key Points: Fishing in India

  • Importance – Fishing is one of the oldest occupations and an important source of food rich in proteins and vitamins.
  • Types of Fisheries –
    Marine fisheries – Fishing in seas and oceans up to 200 metres depth.
    Inland fisheries – Fishing in rivers, lakes, ponds, canals and reservoirs.
  • Production – India produces about 7% of the world’s fish and ranks second among fish-producing countries.
  • Growth Trend – Fish production has increased greatly over the years, especially inland fisheries.
  • Major Coastal States – Kerala, West Bengal, Odisha, Andhra Pradesh, Tamil Nadu, Maharashtra, Karnataka, Goa and Gujarat.
CISCE: Class 12

Key Points: Marine Fisheries

  • Fishing Area – India has a long coastline of about 7,500 km. About 75% of marine fish catch comes from the west coast.
  • Main Fish Varieties – Important marine fish include sardine, herring, mackerel, pomfret and tuna.
  • Major Producing States – Kerala, Maharashtra, Tamil Nadu, Karnataka, Andhra Pradesh, Odisha, West Bengal and Gujarat.
  • Problems – Fishing is seasonal due to monsoon winds and cyclones. Many fishermen still use small, non-mechanised boats.
  • Other Challenges – Lack of cold storage, refrigeration, transport and organised markets reduces the growth of marine fisheries.
CISCE: Class 12

Key Points: Fresh Water or Inland Fisheries

  • Rich Resources – India has rich inland fish resources in rivers, canals, reservoirs, tanks, ponds, lakes, lagoons and estuaries.
  • Rapid Growth – Inland fish production has increased rapidly and now forms a major share of total fish production.
  • Main River Systems – Important rivers supporting inland fisheries are the Ganga, Brahmaputra, Mahanadi, Godavari, Krishna, Narmada, Tapti and Cauvery.
  • Major Producing States – Andhra Pradesh (largest producer), West Bengal, Karnataka, Odisha, Gujarat and Kerala.
  • Landlocked States – Uttar Pradesh, Bihar and Chhattisgarh depend entirely on inland fisheries as they have no sea coast.
  • Important Fish Varieties – Sardines, mackerel, pomfret, prawns, catfish and rohu are commonly caught.
  • Trade & Export – India exports about 10% of its fish production mainly to Sri Lanka, Myanmar, Mauritius and Singapore.
CISCE: Class 12

Key Points: Programme for Development of Fisheries & Fishing Methods

  • Government Programmes – Fish Farmers Development Agencies (FFDAs) and Brackish Water Fish Farmers Development Agencies (BFDAs) were started to increase inland and coastal fish production.
  • Infrastructure Development – Major fishing harbours, minor harbours and fish landing centres have been developed to support marine fisheries.
  • Modernisation Support – Fishermen are given subsidies to motorise traditional boats and improve fishing operations.
  • Modern Fishing Methods – Important methods include Drifting, Trawling, Seining and Lining. These use modern nets and mechanised boats.
  • Advanced Technology – Sonar, radar and factory trawlers with refrigeration facilities are used to increase catch and process fish efficiently.
CISCE: Class 12

Key Points: Types of Fishing

  • Pelagic Fishing – Catches fish that live near the surface of the sea. These fish move in large shoals and fishing is often seasonal.
  • Demersal Fishing – Catches fish living at the bottom of shallow seas (up to 40 metres depth). Cod is a common example.
  • Inshore Fishing – Done near the coast in shallow waters. It is common in tropical and temperate regions and includes shellfish like crabs and molluscs.
  • Fresh Water Fishing – Fish are caught in rivers, lakes, ponds and streams. It mainly supplies local demand and is rarely exported.
CISCE: Class 12

Key Points: Fishing Grounds

  • Location – The major fishing grounds of the world are mainly found in the mid-latitudes of the Northern Hemisphere, especially over continental shelves (up to 200 m depth).
  • Plankton Supply – Abundant plankton (microscopic plants and animals) is the main reason for rich fishing grounds, as fish depend on it for food.
  • Cold Waters & Currents – Fish grow well in cold waters. The meeting of warm and cold ocean currents increases plankton growth and creates rich fishing areas (e.g., near Japan and Newfoundland).
  • River Mouths & Coastline – River mouths bring minerals that increase plankton growth. Indented coasts with sheltered bays and estuaries are ideal for fishing ports.
  • Other Factors – Availability of labour, market demand, transport facilities and shortage of foodgrains in some countries also encourage fishing activities.
CISCE: Class 12

Key Points: Fish Conservation

  • Need for Conservation – Overfishing, indiscriminate catching of immature fish and water pollution have reduced fish resources. Fish regenerate slowly, so protection is necessary.
  • Restocking – Overfished waters can be improved by transferring fish from well-populated areas or introducing new species.
  • Control of Indiscriminate Fishing – Catching of immature fish should be stopped and strict rules should be enforced.
  • Artificial Breeding & Pollution Control – Artificial fertilization in hatcheries and protection of water bodies from pollution help increase fish population.
  • International Cooperation & Research – Global agreements and scientific research are essential because fish move across national boundaries.
Advertisements
Share
Notifications

Englishहिंदीमराठी
Login
Create free account


      Forgot password?
Course
Use app×