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14
FRIDAY, APRIL 6, 1990
MR KWOK SAID ALTHOUGH THE INITIAL CONSTRUCTION AND OPERATION COSTS FOR THIS TYPE OF CAGE WOULD BE MORE EXPENSIVE, NEW SYSTEM MIGHT PROVE TO BE MORE COST EFFECTIVE IN THE LONG RUN.
"IT AVOIDS POLLUTION IMPACT FROM LAND DISCHARGES AS THE ARE MOORED IN EXPOSED CONDITIONS.
THE
THE
CAGES
"SECONDLY, GOOD FLUSHING PROVIDES FAST REPLENISHMENT DISSOLVED OXYGEN AND FAST WASTE REMOVAL, THEREFORE, INCREASES HOLDING CAPACITY.
OF
FISH
OXYGEN
AND
FISH
"THIRDLY, GOOD FLUSHING ALSO REDUCES STRESS FROM DEPLETION AND PREVENTS SELF POLLUTION, THEREFORE, FISH HAS BETTER FASTER GROWTH AND WITH LESS CHANCES OF DISEASE OUTBREAK AND MORTALITY," MR KWOK SAID.
HE POINTED OUT: "FISH CULTURE IN HONG KONG TRADITIONALLY INVOLVES GROWING FISH IN CAGES SUSPENDED FROM WOODEN RAFTS.
"AS SUCH STRUCTURES ARE USUALLY NOT ABLE TO WITHSTAND STRONG WAVES AND CURRENTS, THE PRESENT MARICULTURE ACTIVITIES ARE RESTRICTED TO COMPARATIVELY SHELTERED
THUS BAYS WHICH ARE ALSO SITES FOR RECREATIONAL USE AND NAVIGATIONAL PURPOSES.'
POPULAR
HE ADDED: "IN SHELTERED BAYS, FLUSHING IS USUALLY LIMITED CONSEQUENTLY THE DISSOLVED OXYGEN AND NUTRIENT EXCHANGE RELATIVELY LOW.
PRACTICE
AND
ARE
OF THE OFTEN MORTALITY
"UNDER SUCH CONDITIONS AND WITH THE COMMON MARICULTURISTS TO STOCK THE CAGE 'FAIRLY DENSELY, THE FISH SUFFER FROM POOR GROWTH, FREQUENT DISEASE OUTBREAK AND FISH AND ULTIMATELY, IT RESULTS IN POOR PRODUCTION."
MR KWOK SAID TO PRACTISE MARICULTURE IN THE OPEN SEA MIGHT A WAY TO IMPROVE THE ABOVE CONDITIONS AND TO FURTHER DEVELOP MARICULTURE INDUSTRY.
BE
THE
HE SAID THE INITIAL TRIAL WOULD TAKE ABOUT 12 MONTHS FEASIBILITY OF
AND THE APPLYING THIS NEW SYSTEM IN HONG KONG WOULD ASSESSED AT THE END OF THE TRIAL PERIOD.
BE
ANNUAL REPORT ON THE CONSUMER PRICE INDEX FOR 1989
* * *
(CPI) FOR 1989
THE ANNUAL REPORT ON THE CONSUMER PRICE INDEX HAS BEEN PUBLISHED BY THE CENSUS AND STATISTICS DEPARTMENT.
THE REPORT PROVIDES A COMPREHENSIVE ACCOUNT OF THE CPIS DURING 1989.
OF THE MOVEMENTS
/IT ALSO