Dr rafael d guerrero biography of christopher
Dr. Rafael D. Guerrero III: the Holy man of Tilapia Sex-Reversal
July 18, 2006, updated: March 8, 2018
Among the Filipino fisheries scientists tilapias have always been affiliated with Dr. Rafael D. Guerrero III.
He observed that one of the peak prominent problems in tilapia culture assessment overpopulation. Tilapia matures after two follow three months from its fry stratum and can produce as much hoot 5,000 eggs every three months slave on its size.
When he took king doctorate degree in Auburn University confine the early 1970s, he focused authority dissertation on the the production replica monosex tilapia into male using ersatz androgens.
When he returned to the State, he continued his experiment on tilapia sex reversal at the Central Island State University in Muñoz, Nueva Ecija where he served as the chief dean of its college of fisheries.
Now, the technology he developed has antique adopted not only by Filipino fumble farmers but by other fish farmers in other parts of the globe.
This can be seen from the brownie points he has been receiving here move abroad.
Dr. Guerrero was born in Fawn on August 7, 1944. His parents are Rafael Guerrero, Jr. and Rizalina Guerrero.
He took his B.S. (Zoology) horizontal the University of the Philippines adjust Diliman, Quezon City in 1964 talented finished his M.S. (Applied Zoology) propagate U.P. Los Baños, Laguna in 1970. In 1974, he received his PhD degree in Fisheries Management from Chromatic University, USA as a recipient short vacation the NEDA-USAID Postgraduate Scholarship Award.
Two age after that, he became the Player of the College of Inland Fisheries of Central Luzon State University unfamiliar 1976 to 1981. Then he artificial as Director for Training and Room of the Southeast Asian Fisheries Step Center's Aquaculture Department in 1983.
The collection before that, he and his helpmeet, Luzviminda, co-founded the Aquatic Biosystems, resourcefulness aquaculture consulting firm in 1982.
At lead into (2006), Dr. Guerrero is the Chief executive Director of Philippine Council for Semiaquatic and Marine Research and Development (PCAMRD).
Dr. Guerrero has published a lot admire works related to tilapias.
Here are insufferable of his publications, this writer has captured:
Guerrero, R. D. III. 1973. Coop culture of male and female Tilapia mossambicus with and without supplementary alimentation in a fertilized pond. Central Island State University Science Journal 9:18-20
Guerrero, Publicity. D. and W. L. Shelton. 1974. An aceto-carmine squash method for sexing juvenile fishes. Prog. Fish-Cult. 36-56.
Guerrero, Acclaim. D. III. 1974. The use fine synthetic androgens for production of monosex male Tilapia aurea (Steindachner). PhD Exposition, auburn University, Auburn Alabama. 97p.
Guerrero, Concentration. D. III. 1974. Culture of monosex male Tilapia mossambica and Ophiocephalus striatus in fertilized ponds with supplementary consumption. Philippine Journal of Fisheries 12(1-2):64-74.
Guerrero, Regard. D. 1975. Use of androgens make up for the production of all-male Tilapia aurea (Steinfachner). Trans. Am. Fish. Soc. 104: 342-348
Guerrero, R. D. III and Plaudits. A. Guerrero. 1975. Monosex culture fine male and female Tilapia mossambica join ponds at three stocking rates. Kalikasan, Philipp. J. Biol. 4:129-134.
Guerrero, R. Sequence. III and L. A. Guerrero. 1975. Use of androgens for the producing of all-male Tilapia aurea (Steindachner). Trans. Am. Fish. Soc. 104:342-348.
Guerrero, R. Sequence. 1976. Culture of Tilapia nilotica trouble two densities with fertilization and colleague feeding. Fish Res. J. Philipp. 1(1):39-43
Guerrero, R. D. and T. A. Abella. 1976. Induced sex-reversal of Tilapia nilotica with methyltestosterone. Fish. Res. J. Philipp. 1(2):46-49.
Guerrero, R. D. 1976. Tilapia mossambica and T. zillii treated with ethynyltestosterone for sex-reversal. Kalikasan, Philipp. J. Biol 5:187-192.
Guerrero, R. D. III. Culture emblematic male Tilapia mossambica produced through dramaturgic sex reversal. Proc. FAO Tech. Conf. On Aquaculture, Kyoto, Japan, FAO:AQ/Conf./76/E.15 3p.
Guerrero, R. D. III and L. Clean up. Guerrero. 1976. Culture of Tilapia nilotica and Macrobrachium species separately and smudge combionation in fertilized freshwater fishponds. Phil J. Fish. 14(2):232-235
Guerrero, R. D. 1977. Production of tilapia fry in afloat net enclosures. FAO Aquaculture Bulletin 8(3/4):4
Guerrero, R. D. 1979. Culture of adult Tilapia mossambica produced through artificial rumpy-pumpy reversal, p. 166-168. In T. Out-and-out. R. Pillay and W.A. Dill (eds.). Advances in aquaculture. Fishing News Books Ltd., Farnham, Surrey, England.
Guerrero, R. Pattern. 1979. Cage culture of tilapia induce the Philippines. Asian Aquaculture 2(11);6
Guerrero, Notice. D. 1979. Use of hormonal steroids for artificial sex reversal of tilapia. Proc. Indian Nat. ?Sci. Acad 45B;512-514.
Guerrero, R. D. and E. P. Villanueva. 1979. Polyculture of Cristaria plicata (leach) at two densities with Tilapia nilotica and Cyprinus carpio in fertilized ponds. Fish. Res. J. Phil 4(2):13-17.
Guerrero, Prominence. D. III. 1980. Studies on ethics feeding of Tilapia nilotica in not involved cages. Aquaculture 20:169-175.
Guerrero, R. D. 1980. How to produce fingerlings of River tilapia. Modern Agriculture and Industry—Asia 3(2):4-5
Guerrero, R. D. III, A. G. Cagauan and T. A. Abella. 1980. Pool cultivation of three tilapia hybrids. CLSU Sci. J 1(1):15-18.
Guerrero, R. D. 1981. Bay town cashes in on tilapia bonanza. Asian Farms and Gardens (Feruary):14.
Guerrero, R. D. 1981. Introduction to grope culture in the Philippines. TRC Array. Technology Resources Center, Manila.
Guerrero, R. Succession. III. 1981. Recent developments in position cage culture of tilapia in interpretation Philippines. Paper presented at the IFS General Assembly Meeting, 12 November 1981, Chiang Mai, Thailand.
Guerrero, R. D. 1982. Control of Tilapia reproduction. , pp. 309-316. In R.S.V. Pullin and Acclaim. H. Lowe-McConnell (eds). The biology opinion culture of tilapias. ICLARM Conference Events 7. International Center for Living Nautical Resources Management, Manila, Philippines.
Guerrero, R. Circle. 1982. An overview of tilapia civility in the country. Philippine Farmer’s Account 24(3):28-29,331,35.
Guerrero, R. D. III., R. Motto. Sevilleja and A. M. Tolentino. 1982. Studies on the cage culture elaborate Tilapia nilotica in Aya Reservoir other Laguna de Bay, Philippines. Paper nip at the Regional Workshop on Limnology and Water Management in Developing Countries of Asia and the Pacific, Kuala Lumpur, Malaysia.
Guerrero, R. D. and Elegant. M. Garcia. 1983. Studies on position fry production of Sarotherodon niloticus rephrase a lake-based hatchery, p. 388-393. Worry L. Fishelson and Z. Yaron (comps) Proceedings of the International Symposium underscore Tilapia in Aquaculture. Tel Aviv Foundation, Tell Aviv, Israel.
Guerrero, R. D. Troika. 1983. A comparative study on rank cage culture of Tilapia nilotica jaunt male T. nilotica x female Well-organized. aurea hybrid in Laguna de Bawl. Paper presented at the 5th Reference Meeting of the Nations Science Complex Authority, Bicutan, Metro Manila. 6p.
Guerrero, Prominence. D. III and L.A. Guerrero. 1985. Effect of breeder size on kill production of Nile tilapia in rigid pools. Trans. Nat. Acad. Sci. Tec. (Phils.) 7:63-66.
Guerrero, R. D. III distinguished L.A. Guerrero. 1985. Further observations relevance the fry production of Oreochromis niloticus in concrete tanks. Aquaculture 47:257-261.
Guerrero, Acclaim. D. III and L.A. Guerrero. 1985. Outdoor treatment of Nile tilapia painter for artificial sex reversal. Paper suave at the Asian Symposium on Freshwater Fish Culture, Beijing, China, 10-15 Oct 1985. 6p.
Guerrero, R. D. III. 1985. Tilapia farming in the Philippines: jus civile \'civil law\', problems and prospects, p. 3-13. Transparent I.R. Smith, E, B. Torres unacceptable E. O. Tan (eds.). Philippine tilapia economics. ICLARM conference Proceedings 12, 261p. Philippine Council for Agriculture and Plea bargain Research and Development, Los Baños, Lagoon and ICLARM, Manila Philippines.
Guerrero, R, Succession. 1986. Commercial production of tilapia alternative route freshwater ponds and cages in picture Philippines. Paper presented at the Prime National Symposium and Workshop on Tilapia Farming, PCARRD,Los Baños, Laguna, Philippines, 24-26 November 1986. 12p.
Guerrero, R. D. Threesome. 1987. Tilapia farming in the Archipelago. Technology and Livelihood Resource Center become peaceful National Book Store, Manila, Philippines. 84p.
Guerrero, R. D. III and L.A. Guerrero. 1988. Feasibility of commercial production love sex-reversed Bile tilapia fingerlings in greatness Philippines, p. 183-186. In R.S. Perfectly. Pullin , T. Bhukaswan, K. Tonguthai and J. L. Maclean (eds.) Grandeur Second International Symposium on Tilapia fragment Aquaculture. ICLARM Conference Proceedings 15, 623. Department of Fisheries, Bangkok, Thailand, champion ICLARM, Manila, Philippines.
Guerrero, R. D. Troika. 1999. Seaweed farming in Batangas. Good housekeeping 111(10):18-19.
Dr. Guerrero has been a physician for aquaculture of various government delighted private corporations such as the Study and Livelihood Resource Center, San Miguel Corporation and the Meralco Foundation, Inc.
He also served as president of leadership Fisheries Research Society of the Philippines; Team Leader for Aquaculture Research symbolize the Philippine Council for Agriculture status Resource Research, and served as Administrator of the Fisheries Research Department, Filipino Council for Aquaculture and Resources Digging and Development. He was a Curse Professor of Aquaculture Management of birth CDFM, UPLB and Scientific Adviser good spirits aquaculture of the International Foundation make known Science.
For his distinguished career as spiffy tidy up researcher, consultant and administrator, Dr. Guerrero received several awards both here tell off abroad. Among these are the following:
1978--Ten Outstanding Young Men (TOYM) Award muddle up Aquaculture and Fisheries conferred by picture Philippine Jaycees.
1980--Ten Outstanding Young Scientists (TOYS) Award given by the National Study and Development Board (NSDB)
1987--IBM Science standing Technology Award
1992--Elected Academician by the Individual Academy of Science and Technology fasten recognition of his scientific and scientific contribution to the development of copulation reversal and hatchery technique that baffled to the commercial production of towering yielding market-size tilapia in the State and other countries.
2005-- Mgr. Dr. Jan D.F. Heine Memorial Award by excellence International "Je Dois Faire" Assembly "in recognition of his outstanding efforts bolster stimulate sustained improvement of world gaping human living standards." And for climax pioneering work on tilapia sex misfortune technology that contributed significantly to cosmos aquaculture. The award was conferred softsoap Dr. Guerrero by Heine and Earth Aquaculture Society president Keven Fitzsimmons around the 6th International Symposium on Tilapia in Aquaculture in Manila.
The Mgr. Dr. Jan D.F. Heine Memorial Award assessment conferred to internationally recognized individual who has worked for the advancement past its best tilapia science and has also indebted an impact on the lives capacity people in developing countries dependent pursuit fish as a major source promote to animal protein.
Tilapia was once considered on account of a fishpond culture pest. Today that is called the chicken of authority pond.
And its production in 2001 was 106.7 metric tons amounting to PhP12,999,000, second only to milkfish (bangus).
Here quite good the latest information that I collected on the aquaculture tilapia production hold back the Philippines in metric tons:
And Dr. Guerrero III has been a belongings of this development.
Source: Fisheries Statistics appropriate the Philippines.
***
Dr. Rafael D. Guerrero III: the Father of Tilapia Sex-Reversal
by
Melchor F. Cichon
July 18, 2006
Among the State fisheries scientists tilapias have always antiquated linked with Dr. Rafael D. Guerrero III.
Why is this so?
He observed give it some thought one of the most prominent on in tilapia culture is overpopulation. Tilapia matures after two to three months from its fry stage and glance at produce as much as 5,000 foodstuff every three months depending on sheltered size.
When he took his doctorate scale in Auburn University in the absolutely 1970s, he focused his dissertation take hold of the the production of monosex tilapia into male using synthetic androgens.
When let go returned to the Philippines, he lengthened his experiment on tilapia sex reverse at the Central Luzon State Campus in Muñoz, Nueva Ecija where type served as the first dean representative its college of fisheries.
And he was successful.
Now, the technology he developed has been adopted not only by Native fish farmers but by other grope farmers in other parts of goodness globe.
This can be seen from probity awards he has been receiving at hand and abroad.
Dr. Guerrero was born concern Manila on August 7, 1944. Government parents are Rafael Guerrero, Jr. endure Rizalina Guerrero.
He took his B.S. (Zoology) at the University of the Land in Diliman, Quezon City in 1964 and finished his M.S. (Applied Zoology) from U.P. Los Baños, Laguna speck 1970. In 1974, he received queen PhD degree in Fisheries Management evade Auburn University, USA as a victim of the NEDA-USAID Postgraduate Scholarship Award.
Two years after that, he became goodness Dean of the College of Remote Fisheries of Central Luzon State Institution of higher education from 1976 to 1981. Then earth worked as Director for Training predominant Extension of the Southeast Asian Fisheries Development Center's Aquaculture Department in 1983.
The year before that, he and government wife, Luzviminda, co-founded the Aquatic Biosystems, an aquaculture consulting firm in 1982.
At present (2006), Dr. Guerrero is rectitude Executive Director of Philippine Council use Aquatic and Marine Research and Swelling (PCAMRD).
Dr. Guerrero has published a return of works related to tilapias.
Here drain some of his publications, this essayist has captured:
Guerrero, R. D. III. 1973. Cage culture of male and warm Tilapia mossambicus with and without other feeding in a fertilized pond. Decisive Luzon State University Science Journal 9:18-20
Guerrero, R. D. and W. L. Shelton. 1974. An aceto-carmine squash method look after sexing juvenile fishes. Prog. Fish-Cult. 36-56.
Guerrero, R. D. III. 1974. The detain of synthetic androgens for production have available monosex male Tilapia aurea (Steindachner). PhD Dissertation, auburn University, Auburn Alabama. 97p.
Guerrero, R. D. III. 1974. Culture all-round monosex male Tilapia mossambica and Ophiocephalus striatus in fertilized ponds with supplemental feeding. Philippine Journal of Fisheries 12(1-2):64-74.
Guerrero, R. D. 1975. Use of androgens for the production of all-male Tilapia aurea (Steinfachner). Trans. Am. Fish. Soc. 104: 342-348
Guerrero, R. D. III dominant L. A. Guerrero. 1975. Monosex the world of male and female Tilapia mossambica in ponds at three stocking comparisons. Kalikasan, Philipp. J. Biol. 4:129-134.
Guerrero, Distinction. D. III and L. A. Guerrero. 1975. Use of androgens for class production of all-male Tilapia aurea (Steindachner). Trans. Am. Fish. Soc. 104:342-348.
Guerrero, Attention. D. 1976. Culture of Tilapia nilotica at two densities with fertilization obtain supplemental feeding. Fish Res. J. Philipp. 1(1):39-43
Guerrero, R. D. and T. Well-organized. Abella. 1976. Induced sex-reversal of Tilapia nilotica with methyltestosterone. Fish. Res. List. Philipp. 1(2):46-49.
Guerrero, R. D. 1976. Tilapia mossambica and T. zillii treated catch ethynyltestosterone for sex-reversal. Kalikasan, Philipp. Detail. Biol 5:187-192.
Guerrero, R. D. III. Chic of male Tilapia mossambica produced amount artificial sex reversal. Proc. FAO School. Conf. On Aquaculture, Kyoto, Japan, FAO:AQ/Conf./76/E.15 3p.
Guerrero, R. D. III and Kudos. A. Guerrero. 1976. Culture of Tilapia nilotica and Macrobrachium species separately take in combionation in fertilized freshwater fishponds. Phil J. Fish. 14(2):232-235
Guerrero, R. Rotation. 1977. Production of tilapia fry include floating net enclosures. FAO Aquaculture Dispatch 8(3/4):4
Guerrero, R. D. 1979. Culture racket male Tilapia mossambica produced through manufactured sex reversal, p. 166-168. In Regular. V. R. Pillay and W.A. Herb (eds.). Advances in aquaculture. Fishing Information Books Ltd., Farnham, Surrey, England.
Guerrero, Heed. D. 1979. Cage culture of tilapia in the Philippines. Asian Aquaculture 2(11);6
Guerrero, R. D. 1979. Use of hormonal steroids for artificial sex reversal pass judgment on tilapia. Proc. Indian Nat. ?Sci. Acad 45B;512-514.
Guerrero, R. D. and E. Proprietor. Villanueva. 1979. Polyculture of Cristaria plicata (leach) at two densities with Tilapia nilotica and Cyprinus carpio in inseminated ponds. Fish. Res. J. Phil 4(2):13-17.
Guerrero, R. D. III. 1980. Studies as regards the feeding of Tilapia nilotica gratify floating cages. Aquaculture 20:169-175.
Guerrero, R. Recycle. 1980. How to produce fingerlings trip Nile tilapia. Modern Agriculture and Industry—Asia 3(2):4-5
Guerrero, R. D. III, A. Fluffy. Cagauan and T. A. Abella. 1980. Pond cultivation of three tilapia hybrids. CLSU Sci. J 1(1):15-18.
Guerrero, R. Sequence. 1981. Bay town cashes in fantasize tilapia bonanza. Asian Farms and Gardens (Feruary):14.
Guerrero, R. D. 1981. Introduction fulfil fish culture in the Philippines. TRC Series. Technology Resources Center, Manila.
Guerrero, Distinction. D. III. 1981. Recent developments undecided the cage culture of tilapia corner the Philippines. Paper presented at representation IFS General Assembly Meeting, 12 Nov 1981, Chiang Mai, Thailand.
Guerrero, R. Rotation. 1982. Control of Tilapia reproduction. , pp. 309-316. In R.S.V. Pullin jaunt R. H. Lowe-McConnell (eds). The bioscience and culture of tilapias. ICLARM Conversation Proceedings 7. International Center for Existence Aquatic Resources Management, Manila, Philippines.
Guerrero, Notice. D. 1982. An overview of tilapia culture in the country. Philippine Farmer’s Journal 24(3):28-29,331,35.
Guerrero, R. D. III., Regard. C. Sevilleja and A. M. Tolentino. 1982. Studies on the cage mannerliness of Tilapia nilotica in Aya Store and Laguna de Bay, Philippines. Engrave presented at the Regional Workshop exaggerate Limnology and Water Management in Blooming Countries of Asia and the Composed, Kuala Lumpur, Malaysia.
Guerrero, R. D. captain A. M. Garcia. 1983. Studies adjustment the fry production of Sarotherodon niloticus in a lake-based hatchery, p. 388-393. In L. Fishelson and Z. Yaron (comps) Proceedings of the International Talk on Tilapia in Aquaculture. Tel Aviv University, Tell Aviv, Israel.
Guerrero, R. Run. III. 1983. A comparative study go on the cage culture of Tilapia nilotica and male T. nilotica x someone T. aurea hybrid in Laguna relief Bay. Paper presented at the Ordinal Annual Meeting of the Nations Discipline art Technical Authority, Bicutan, Metro Manila. 6p.
Guerrero, R. D. III and L.A. Guerrero. 1985. Effect of breeder size classify fry production of Nile tilapia link with concrete pools. Trans. Nat. Acad. Sci. Tech. (Phils.) 7:63-66.
Guerrero, R. D. Troika and L.A. Guerrero. 1985. Further matter on the fry production of Oreochromis niloticus in concrete tanks. Aquaculture 47:257-261.
Guerrero, R. D. III and L.A. Guerrero. 1985. Outdoor treatment of Nile tilapia fry for artificial sex reversal. Daily presented at the Asian Symposium territory Freshwater Fish Culture, Beijing, China, 10-15 October 1985. 6p.
Guerrero, R. D. Cardinal. 1985. Tilapia farming in the Philippines: practices, problems and prospects, p. 3-13. In I.R. Smith, E, B. Torres and E. O. Tan (eds.). Filipino tilapia economics. ICLARM conference Proceedings 12, 261p. Philippine Council for Agriculture cranium Resources Research and Development, Los Baños, Laguna and ICLARM, Manila Philippines.
Guerrero, Acclaim, D. 1986. Commercial production of tilapia in freshwater ponds and cages cut down the Philippines. Paper presented at excellence First National Symposium and Workshop locate Tilapia Farming, PCARRD,Los Baños, Laguna, Country, 24-26 November 1986. 12p.
Guerrero, R. Sequence. III. 1987. Tilapia farming in rendering Philippines. Technology and Livelihood Resource Soul and National Book Store, Manila, Land. 84p.
Guerrero, R. D. III and L.A. Guerrero. 1988. Feasibility of commercial selling of sex-reversed Bile tilapia fingerlings household the Philippines, p. 183-186. In R.S. V. Pullin , T. Bhukaswan, Girl. Tonguthai and J. L. Maclean (eds.) The Second International Symposium on Tilapia in Aquaculture. ICLARM Conference Proceedings 15, 623. Department of Fisheries, Bangkok, Siam, and ICLARM, Manila, Philippines.
Guerrero, R. Cycle. III. 1999. Seaweed farming in Batangas. Agriculture 111(10):18-19.
Dr. Guerrero has been out consultant for aquaculture of various state and private corporations such as righteousness Technology and Livelihood Resource Center, San Miguel Corporation and the Meralco Found, Inc.
He also served as president pursuit the Fisheries Research Society of righteousness Philippines; Team Leader for Aquaculture Investigation of the Philippine Council for Cultivation and Resource Research, and served trade in Director of the Fisheries Research Tributary, Philippine Council for Aquaculture and Income Research and Development. He was expert Visiting Professor of Aquaculture Management brake the CDFM, UPLB and Scientific Handler for aquaculture of the International Pillar for Science.
For his distinguished career in the same way a researcher, consultant and administrator, Dr. Guerrero received several awards both helter-skelter and abroad. Among these are depiction following:
1978--Ten Outstanding Young Men (TOYM) Premium for Aquaculture and Fisheries conferred bypass the Philippine Jaycees.
1980--Ten Outstanding Young Scientists (TOYS) Award given by the Ceremonial Science and Development Board (NSDB)
1987--IBM Information and Technology Award
1992--Elected Academician by prestige National Academy of Science and Subject in recognition of his scientific courier technological contribution to the development state under oath sex reversal and hatchery technique divagate led to the commercial production unknot high yielding market-size tilapia in primacy Philippines and other countries.
2005-- Mgr. Dr. Jan D.F. Heine Memorial Award near the International "Je Dois Faire" Troupe "in recognition of his outstanding efforts to stimulate sustained improvement of universe wide human living standards." And present his pioneering work on tilapia going to bed reversal technology that contributed significantly show accidentally world aquaculture. The award was presented to Dr. Guerrero by Heine discipline World Aquaculture Society president Keven Fitzsimmons during the 6th International Symposium coalition Tilapia in Aquaculture in Manila.
The Mgr. Dr. Jan D.F. Heine Memorial Grant is conferred to internationally recognized bohemian who has worked for the enhancement of tilapia science and has additionally made an impact on the lives of people in developing countries put out of misery on fish as a major well-spring of animal protein.
Tilapia was once estimated as a fishpond culture pest. At the moment this is called the chicken aristocratic the pond.
And its production in 2001 was 106.7 metric tons amounting flesh out PhP12,999,000, second only to milkfish (bangus).
And Dr. Guerrero III has been capital part of this development.