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Geography World - Water Bodies

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Fishing grounds are concentrated in the high latitudes. The reasons are

1.great length of indented coastline.

2.extensive continental shelves.

3.water temperatures lower than 20⁰C

4.sparse population

1, 2 and 3

2, 3 and 4

1 and 2

2 and 4

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Explanation:

1. Indented or Broken Coastline:

It provides natural shelter to fish and easy catch to the fisherman. Construction of ports are easier. Fishing ships remain protected from destructive storms. The Fjord type of coast in Norway, Sweden exhibits excellent fishing harbours.

2. Widest continental shelf's are congenial for the production of plankton. The tiny unicellular marine organism is known as plankton. These are of two types —Phytoplankton and Zooplankton. Zooplankton consumes phytoplankton and is in turn, consumed by marine fish. So, availability of plankton is a necessary factor for the development of fishing region The widest and common continental shelf’s are located in the middle and high latitude areas of northern hemisphere, e.g Japan Sea, Newfoundland Bank, North Sea, Continental shelves of N.W. Europe etc.

3. Third condition also supports best fishing grounds.