Thursday, May 18, 2006

BFAR successfully breeds maliputo in captivity

A major scientific breakthrough in aquaculture has been achieved here in the National Fisheries Biological Center (NFBC), a research and extension facility of the Department of Agriculture – Bureau of Fisheries and Aquatic Resources.

BFAR Director Malcolm I. Sarmiento, Jr., said that the breakthrough involved the spawning of maliputo, a very expensive fish which once abound Lake Taal. A visibly elated fisheries director announced that finally lady luck smiles at BFAR – maliputo, known also as talakitok (Caranx ignobilis) when caught in marine waters, finally was induced to spawn over the weekend at the research facility.

“This is a big one, as this is definitely a first in the country if not the world” Sarmiento said, noting that it took BFAR more than 10 years in perfecting the breeding technology.“What is so exciting about this development is that it came almost immediately after another technological breakthrough in shrimp farming”, Sarmiento quipped.

He said that sugpo or Peneaus monodon can now be cultured in marine fish pens making sugpo culture more economically feasible even to ordinary fishermen as proven and field-tested by BFAR technologists in Region 7. Fine tuning of the experiments are currently undertaken in Calape, Bohol, he said.

Ma. Theresa M. Mutia, who heads the team of aquaculturists responsible for the success in breeding maliputo said that the spawning proves once and for all that breeding this very expensive fish in captivity is attainable. She explained that the team was able to develop a method of inducing natural spawning in the matured fish which are very difficult to handle owing to its sensitive nature.

The lack of scales in the fish makes it very sensitive to hormonal injection and the slightest removal from the water may also cause sudden death.As of press time, the fertilized eggs released by the induced fish had already hatched and the surviving 5-day old fry are doing fine in the BFAR nursery.

Catadromous fishLike milkfish or bangos, maliputo is catadromous, meaning it breeds and spawns in estuarine waters (a mixture of marine and freshwater found in river mouths and mangroves) and goes upstream to seek for freshwater to grow into adulthood. In Batangas, maliputo spawns in Balayan Bay and the fingerlings migrate to Taal Lake via the Pansipit River.

There, the fish grow to up to 3 kilos and are priced up to P500 per kilo. Maliputo is now fast becoming a rarity in Batangas and in other top restaurants and hotels in Manila owing to decreasing catch in the lake and the scarcity of fingerlings caught in the wild.

Once the breeding protocol of maliputo is established, BFAR foresees a remarkable increase in the production of this species as fingerlings could already be made available year round. Currently, local pond growers rely only on fingerlings caught in the wild which is highly seasonal and limited. The maliputo project is part of BFAR’s strategy to broaden its aquaculture base in support of the President Arroyo’s 10-point agenda of increasing food production for food security, Sarmiento said.

Experimental runsAfter many attempts to breed the maliputo in captivity in Botong, finally two sets of breeders had successfully spawned midnight of April 20, this year. The induced spawning took place 28 hours after the matured fish were injected with hormones. As seen under the microscope, the eggs started hatching 16 hours later and the developing larvae fed on its yolk in the next 3 days.BFAR continues to monitor the developments of the newly-hatched fry. Mutia said that there are many more factors that need to be addressed such as the water quality of the marine water used in spawning and egg hatching; the development of feeds for the developing larvae; the temperature and salinity requirements, among others.Some of the maliputo fry had been sent to the National Integrated Fisheries Technology Development Center in Dagupan City for further studies.
Delectable fishMaliputo is comparable in taste and texture to other white-fleshed marine fish like lapu-lapu, pompano and maya-maya. This is usually served in high-brow restaurants and hotels steamed-cook and garnished with various herbs and spices. Caught alive, caranx are much sought after by the Japanese and Chinese restaurants here and abroad, making it another export winner for the country.

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AGRI-INFO/MAY 18, 2006



TITLE: BFAR BREEDS MALIPUTO


ALAM BA NINYO NA NAGAWANG MAISAILALIM SA BREEDING ANG ISANG MAITUTURING NA NAPAKAMAHAL NA ISDA – ANG MALIPUTO FISH?

PINANGUNAHAN NG BUREAU OF FISHERIES AND AQUATIC RESOURCES ANG MASUSING PAG-AARAL AT NAGBUNGA ANG GANITONG MGA PAGSISIKAP NANG MATAGUMPAY NA MA-BREED ANG MALIPUTO O KILALA BILANG TALAKITOK NA UNANG NAKUHA SA LAKE TAAL.

AYON KAY BFAR DIRECTOR MALCOLM SARMIENTO, KAILANGAN NILANG GUMUGOL NG SAMPUNG TAON PARA LAMANG MA-PERFECT ANG BREEDING TECHNOLOGY SA ISDA LALU NA SA TALAKITOK.

SA PANIG NAMAN NI MA. THERESA MUTIA, ANG PINUNO NG TEAM NG MGA AQUACULTURIST NA SILANG NASA LIKOD NG MATAGUMPAY NA BREEDING SA MALIPUTO, NAPATUNAYAN NILA NA MAAARI PALANG MA-BREED ANG ISDANG ITO IN CAPTIVITY.

MAGAWANG MAISAKATUPARAN NG MGA EKSPERTO ANG ISANG PAMAMARAAN PARA MA-INDUCE ANG TINATAWAG NA NATURAL SPAWNING SA MATURED FISH NA SADYANG NAPAKAHIRAP NA MAPANGALAGAANG MABUTI.

ANG KAKULANGAN NG KALISKIS SA KATAWAN ANG DAHILAN KUNG BAKIT SENSITIBO ANG TALAKITOK SA HORMONAL INJECTION AT ANG BAHAGYANG PAG-ALIS NITO SA TUBIG AY MAAARING IKAMATAY NITO.

ANG FERTILIZED EGGS MULA SA INDUCED FISH AY NAPISAAN NA AT NABUBUHAY PA RIN ANG BREEDED FRY SA BFAR NURSERY.

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