XN000022-1988-05-05 — Page 5

THURSDAY, MAY 5, 1988

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MARICULTURISTS ALERTED OVER FISH KILL

THE AGRICULTURE AND FISHERIES DEPARTMENT TODAY (THURSDAY) WARNED MARICULTURISTS IN THE TOLO HARBOUR REGION THAT RED TIDES AND STAGNANT TIDES PREVAILING IN THEIR FISH CULTURE GROUNDS MIGHT GIVE RISE TO FISH KILLS CAUSED BY OXYGEN DEPLETION.

THEY SHOULD IMPROVE THE LEVEL OF DISSOLVED OXYGEN IN THE WATERS THROUGH MECHANICAL MEANS PARTICULARLY AT NIGHT.

THE WARNING FOLLOWED A REPORT OF FISH KILL RECEIVED BY THE DEPARTMENT THIS (THURSDAY) MORNING FROM MARICULTURISTS IN THE YIM TIN TSAI FISH CULTURE ZONE WHERE 35 TONNES OF FISH WERE KILLED OVERNIGHT,

THE RESULTS OF A PRELIMINARY INVESTIGATION CARRIED OUT BY THE DEPARTMENT'S FISHERIES OFFICER, DR PATSY WONG, REVEALED THAT THE FISH KILL WAS DUE ΤΟ OXYGEN DEPLETION CAUSED BY STAGNANT TIDES AND PRESENCE OF NON-TOXIC RED TIDES, FORMED BY A PLANKTON SPECIES CALLED THE "GONYAULAX POLYGRAMMA", IN THE WATERS.

DR WONG SAID THE FISH SPECIES AFFECTED INCLUDED GOLD-LINED SEABREAMS, MANGROVE SNAPPERS AND GREEN GROUPERS. AS THE FISH DIED ONLY OF OXYGEN DEPLETION, THEY WERE FIT FOR HUMAN CONSUMPTION.

"THE FOUR FISH CULTURE ZONES IN THE TOLO HARBOUR REGION NAMELY YIM TIN TSAI, YIM TIN TSAI EAST, YUNG SHUE AU AND LO FU WAT 1 WILL BE AFFECTED BY LOW CURRENTS AND STAGNANT TIDES OVER THE NEXT FEW DAYS.

"MARICULTURISTS IN THESK AREAS SHOULD MAKE EVERY EFFORT AERATE THE WATERS IN ORDER TO MINIMISE THEIR LOSSES, DR WONG ADDED.

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ΤΟ

GOVERNOR PRAISES WORK OF OUTWARD BOUND SCHOOL

CHALLENGING

THE OUTWARD BOUND SCHOOL PLAYS A VERY VALUABLE TRAINING YOUNG PEOPLE IN A

ENVIRONMENT. THE SIR DAVID WILSON, SAID TODAY (THURSDAY).

VISITING THE SCHOOL AT TAI MONG TSAI, SAI KUNG, SIR TOLD THAT LAST YEAR, THE SCHOOL ORGANISED 117 COURSES FOR 3,100 PEOPLE.

ROLE IN GOVERNOR,

DAVID WAS

THAN

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