The Harvest of the Sea: A contribution to the natural and economic history of the British food fishesBertram, James Glass
Science
The Harvest of the Sea: A contribution to the natural and economic history of the British food fishes
Bertram, James Glass
Fish culture; Fisheries -- Great Britain; Fishes
The ship arrived at Hobson’s Bay, Melbourne, on the 15th of April,
having been seventy-seven days on the voyage. A few of the boxes
containing the eggs were at once opened and placed in a suitable
hatching apparatus, but the larger portion were sent off to Tasmania
and reached Hobart Town on the 20th of April, where they were at once
deposited in the pond which had been carefully prepared for them on
the river Plenty. The following extract from a letter, written by the
Hon. Dr. Officer, Speaker of the House of Assembly, will show what
was done on the arrival of the eggs:—“Soon after the arrival of the
first half of the boxes, the process of opening them and depositing
the ova in their watery beds commenced, and you may be sure an anxious
process it was. In the first two boxes that were opened by far the
greater number of the ova had perished, but as we proceeded much more
fortunate results were obtained, and in many of the packages the living
predominated over the dead. I could not attempt to state to you, even
approximately, at the present moment, the actual number of healthy ova
that were found in the moss and placed in the hatching-boxes, beyond
saying that they amount to many thousands, and are amply sufficient,
if they should all continue to thrive and should become living fish,
to insure the complete success of our experiment. All the boxes have
now been opened except fifteen, and the ova first taken out have been
about twenty-four hours in the water. Among these some of them can
be observed with the eyes quite prominent, and visibly indicating the
near approach of hatching, so that not many days will elapse until the
ultimate result of the experiment is known. The remnant of the ice,
amounting to about eight tons, obtained from the _Norfolk_, was brought
up here with very little loss, and has of course been used in cooling
the water in the hatching-boxes. Mr. Ramsbottom thinks it will last
as long as he will require its aid, although it melts very quickly.
The water of the Plenty, which had fallen below 50 degrees, had been
again raised by a week of warm sunny weather to 54 degrees, which was
its temperature yesterday, but it was reduced to 45 degrees by the
introduction of ice. To-day the weather has been more suitable, and
the natural temperature is not much over 50 degrees, and will in all
probability soon decline several degrees lower. One or two of the ova
which were deposited in the water in apparently sound health have been
observed to become opaque and die, while some others have been seen to
retain all their clearness. These observations have necessarily been of
very limited extent. In one of the two boxes of trout ova, nearly all
were dead; in the other nearly all alive, and of a remarkably clear and
brilliant appearance. These have been placed in a compartment separated
from the salmon-boxes.”
Public-domain text, read in full here on John Shaqi.
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