PRIMARY SECTOR

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PRIMARY SECTOR

• FISHING
• Clara Rodríguez Núñez

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FISHING

• Definition
• Types of fishing deep-sea and shallow-see
  fishing.
• Fishing techniques
• Trawling
• Seining
• Driftnetting
• Handlining
• Fishtraps
• Commercial fishing
• Problems on fishing
• Main solutions for overfishing EEZ, quotas,
  aquaculture
• Raft culture
• Shellfish fishing in Galicia

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Definition

• Fishing is the activity of hunting for fish. By
  extension, the term fishing is also aplied to
  hunting for other aquatic animals such as various
  types of shellfish.

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Types of fishing

• Deep sea fishing

• Shallow water fishing

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Fishing techniques

• Trawling is a method of fishing that involves
  actively pulling a fishing net through the water
  behind one or more boats.

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Fishing techniques

• Seining a seine is a large fishing net that
  hangs vertically in the water by attaching
  weights along the botton edge and floats along
  the top.

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Fishing techniquesgillnetting

• A gillnet is a wall of netting set in a straight
  line, equipped with weights at the bottom and
  floats at the top, and is usually anchored at
  each end.

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Fishing techniquesgillnetting

• Fish swim through the virtually invisible
  netting, and are entangled when their gills are
  caught in the webbing, hence the name
  gillnetting.

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Fishing techniques

• Fishing lines fish are caught with a fishing
  line by encouraging a fish to bit upon a fish
  hook or a gorge that is buried in the bait. Long
  line fishing is a commercial fishing technique
  that uses hundreds or even thousands of baited
  hooks hanging from a single line.

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Fishing techniques

• Fishtraps pot-traps are baited to atract fishes
  and periodically lifted. Pots are weighted to
  rest on the bottom, with marked buoys at the
  surface. They are typically used to catch
  crustaceans.

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Commercial fishing

• Commercial fishing methods have become very
  efficient using large nets and sea-going
  processing factories.

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Commercial fishing

• The development of refrigeration and freezing
  technologies transformed the commercial fishing
  industry fishing vessels could be larger,
  spending more time away from port and therefore
  accessing fish stocks at a much greater
  distance..

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Problems on fishing
Pollution
Overfishing
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Main solutions for overfishing

• Creating exclusive economic zones (EEZ), an area
  extending 200 nautical miles seaward from the
  coast in which a country has sovereign rights to
  explore and explote marine resources.
• Restrictions or quotas. International treaties
  limit the fishing effort.
• Aquaculture

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Aquaculture

• Aquaculture is the cultivation of the natural
  produce of water (such us fish or shellfish).
  Fish farming is a common kind of aquaculture.

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Raft culture mussel aquaculture

• The traditional raft system consist in a wooden
  structure with rectangular shape, and with 4 or 5
  floaters, made witn still and covered with glass
  fiber. There are new designs made of polyethilene.

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Mussel aquaculture in Galicia

• The EU produces about 660.000 mt of mussels every
  year, of those about 300.000 mt are produced in
  Spain, with a 96 in Galicia.

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Shellfish fishing

• A very important activity in Galicia is also
  shellfish fishing. It can be on-boat or on-foot.

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Semi-farming on-foot shellfish fishing

• On-foot shellfing fishing is made above all by
  women. A way to improve production is
  semi-farming.