310
-
THE SEAS
'
they form a complete food in themselves, and an oystèr
has been compared in food value to a glass of milk.
Moreover,
under the right conditions, great numbers can be
cultivated in comparatively small areas.
Although not
yet applicable to the true sheries, aquiculture or farming
of the products of the sea, has been shown to be a perfectly
practicable proposition when applied to shellsh, the
collection and sowing of the “ seed ” followed by care and
attention during growth, resulting in a rich harvest, some
idea of which will be gained from the following extract
from an ofcial report of the Ministry of Agriculture and
-_
Fisheries.
-
'
“
It has been calculated that an acre of the best mussel
ground will produce annually 40,000 lbs. of mussels,
equivalent to 10,000 lbs. of mussel meat with a “ fuel ”
value of 3,ooo,ooo calories and a money value of about
£2 50, and this at the cost of practically no capital expenditure and only such labour as is involved in trans—
plantation to prevent over—cr0wding, and to secure the best
_
conditions for growth and fattening.
No known system
of cultivation of agricultural land can produce correspond.
ing values in the form of animal food.
The average
yield in beef of an acre of average pasture land is reckoned
to be 100 lbs., equivalent to 120,000 calories and valued
-
at, say-, 757 ms.
The yield of ri0h fattening pasture may
be as high as 190 lbs., equivalent to
and
valued at, say, £14.’Î
—
,
‘
PUR1FICAT10N
.
Unfortunately, there is one great drawback to the cori—
sumptiom 0f shellsh;
the risk of bacterial infection.
Oysters and mussel beds are often situated in estuaries
'
many of which are badly cotaminated by sewage brought
down from towns further up stream. '
'Any bacteria there
-
THE SEAS
'
they form a complete food in themselves, and an oystèr
has been compared in food value to a glass of milk.
Moreover,
under the right conditions, great numbers can be
cultivated in comparatively small areas.
Although not
yet applicable to the true sheries, aquiculture or farming
of the products of the sea, has been shown to be a perfectly
practicable proposition when applied to shellsh, the
collection and sowing of the “ seed ” followed by care and
attention during growth, resulting in a rich harvest, some
idea of which will be gained from the following extract
from an ofcial report of the Ministry of Agriculture and
-_
Fisheries.
-
'
“
It has been calculated that an acre of the best mussel
ground will produce annually 40,000 lbs. of mussels,
equivalent to 10,000 lbs. of mussel meat with a “ fuel ”
value of 3,ooo,ooo calories and a money value of about
£2 50, and this at the cost of practically no capital expenditure and only such labour as is involved in trans—
plantation to prevent over—cr0wding, and to secure the best
_
conditions for growth and fattening.
No known system
of cultivation of agricultural land can produce correspond.
ing values in the form of animal food.
The average
yield in beef of an acre of average pasture land is reckoned
to be 100 lbs., equivalent to 120,000 calories and valued
-
at, say-, 757 ms.
The yield of ri0h fattening pasture may
be as high as 190 lbs., equivalent to
and
valued at, say, £14.’Î
—
,
‘
PUR1FICAT10N
.
Unfortunately, there is one great drawback to the cori—
sumptiom 0f shellsh;
the risk of bacterial infection.
Oysters and mussel beds are often situated in estuaries
'
many of which are badly cotaminated by sewage brought
down from towns further up stream. '
'Any bacteria there