CHAPTER XV
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Fishery‘ Research
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T0 a naturalist the engrossing work of uravelling the many
mysteries of life in the sea and the quest for'informatiom
to enable a clear picture to be gainèd of the life'stories of
the animals is all sufcient.
But in these days of applied
science the naturast is also called upon to utilize his
knowledge to helpthe many industries which are dependent
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on
the products of the Sea.
By far the most important
of these products are those sh that are eatén by man—,
under the term edible sh—are generally included both the
true sh and the shellsh which consist of crabs, shrimps
and oysters, etc.
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There can be no hard and fast line between oceanography
and shery research, because all of the widely ranging
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problems attacked by the oceanôgrapher will béfound to
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have some indirect bearing on the lives of the shes living
in the sea.
Fishery research is,'rather; a branch of oceanoand its mam concern is an attack on the problems
directly connected with those sh which form the chief
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supplies of food from the sea.
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The foundations for, the application Of science-to the -
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shing industry muSt.alie in
complete
and intimate
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knoWledge of the life—history and habits Of 63011 ShIt
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‘. Will perhaps enaka the reader best to graSp‘thè methods
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and aims of modern shery research if we describe
how our
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knowledge has been gained of, two-sh; such as
the herring and the plaice, .which dier w1dely
m the1r
habits.
Both of these sh are of the greatest 1mportanæ
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—
a
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