GOVPH

Sex: Female

Education:

• Hokkaido University, Hakodate, Hokkaido, Japan, Doctor of Fisheries Science, 1993 - 1997
• University of the Philippines, Diliman Quezon City, Philippines, Master of Science in Zoology, 1977 - 198
• University of the Philippines College Iloilo, Iloilo City, Philippines, Bachelor of Science in Biological Sciences, 1973 - 1977

Field of Specialization:

Reproductive Physiology, Digestive Physiology

Researches:

Fermin, J.D.T., Quinitio, G.F., Sa-an, A.C. and Toledo, J.D. , (2004) Localization of enzymes in the digestive system during early development of the grouper (Epinephelus coiodes).
ACIAR Monograph Volume 110

Fermin, J.D.T., Quinitio, G.F., Sa-an, A.C. and Toledo, J.D. , (2004) Changes in gastrointestinal tract and associated organs during early development of the grouper (Epinephelus coiodes).
ACIAR Monograph Volume 110

Fermin, J.D.T., Minjoyo, H., Macaranas, J.M. , (2003) Localization of enzymes in the digestive tract during the larval to early juvenile stages of sea bass (Lates calcarifer Bloch)
Indonesia Fisheries Research Journal Volume 9

Fermin, J.D.T., Coniza, E.B., Catacutan, M.R. , (2003) Growth and yield of the Asian catfish Clarias macrocephalus (Gunther) fed different grow-out diets
Israel Journal of Aquaculture-Bamidgeh Volume 55, No. 1

Fermin, J.D.T., Bombeo, R.F., Fermin, A.C. , (2002) Nursery rearing of Asian catfish, Clarias macrocephalus (Gunther), at different stocking densities in cages suspended in tanks and ponds
Aquaculture Research Volume 33, No. 13

Fermin, J.D.T., Quinitio, G.F. and Nagai, A. , (2001) Possible application of mibolerone for induced sex inversion of grouper Epinephelus coiodes.
Fisheries Science Volume 67, No. 2

Fermin, J.D.T., Cruz-Lacierda, E.R., Toledo, J.D. and Burreson, E.M., (2000) Marine leech (Zeylanicobdella arugamensis) infestation in cultured orange-spotted grouper, Epinephelus coiodes.
Aquaculture Volume 185, No. 3-4

Fermin, J.D.T., Coniza, E.B., Catacutan, M.R. Trino, A.T. and Agbayani, R.F., (2000) Economic evaluation of grow-out diets for Asian catfish Clarias macrocephalus (Gunther) production.
University of the Philippines in the Visayas Journal of Natural Sciences Volume 5

Fermin, J.D.T., Marte, C.L. Ueda, H. Adachi, S. and Yamauchi, K. , (1999) Effect of season on oocyte development and serum steroid hormone profiles in LHRHa and pimozide-injected catfish Clarias macrocephalus (Gunther).
Fisheries Science Volume 65, No. 6

Fermin, J.D.T., Miura, T., Adachi, S. and Yamauchi, K. , (1999) Seminal plasma composition, sperm motility, and milt dilution in the catfish Clarias macrocephalus (Gunther).
Aquaculture Volume 171

Fermin, J.D.T, Ijiri, S., Ueda, H., Adachi, S. and Yamauchi, K. , (1997) Ovarian development and serum steroid hormone profiles in hatchery-bred female catfish Clarias macrocephalus (Gunther) during an annual reproductive cycle.
Fisheries Science Volume 63, No. 6

Fermin, J.D.T., Miura, T., Ueda, H., Adachi, S. and Yamauchi, K., (1997) Testicular histology and serum steroid hormone profiles in hatchery-bred catfish Clarias macrocephalus (Gunther) during an annual reproductive cycle.
Fisheries Science Volume 63, No. 5

Fermin J.D.T., Pagador, R.R. and Caballero, R.V. , (1997) LHRHa and pimozide-induced spawning of Asian catfish Clarias macrocephalus (Gunther) at different times during an annual reproductive cycle.
Aquaculture Volume 148

Fermin, J.D.T, Tambasen-Cheong Ma. V.P., Garcia, Ma.B.L. and Baldevarona, R.B., (1995) Milt-egg ratio in artificial fertilization of the Asian freshwater catfish, Clarias macrocephalus, injected salmon gonadotropin-releasing hormone analogue and domperidone.
Aquatic Living Resources Volume 8, No. 4

Fermin J.D.T., Garcia Ma.B.L. and Castillo Jr. A.R. , (1994) Induction of sex inversion in juvenile grouper, Epinephelus suillus (Valenciennes) by injections of 17 alpha-methyltestosterone.
Japanese Journal of Ichthyology Volume 40, No. 4

Fermin J.D.T., Emata, A.C., (1993) Induced spawning by LHRHa and pimozide in the freshwater Asian catfish Clarias macrocephalus (Gunther)
Journal of Applied Ichthyology Volume 9

Fermin, J.D.T. , (1992) Withdrawal of exogenous 17 alpha-methyltestosterone causes reversal of sex-inversed male Epinephelus suillus (Valenciennes).
Philippine Scientist Volume 29

Fermin, J.D.T., (1992) Induction of oocyte maturation and ovulation in the freshwater Asian catfish Clarias macrocephalus (Gunther) by LHRHa and pimozide.
Journal of Applied Ichthyology Volume 8

Fermin, J.D.T., (1991) Suitability of different formalin-containing fixatives for the eggs of catfish Clarias macrocephalus (Gunther).
Israel Journal of Aquaculture-Bamidgeh Volume 43

Fermin, J.D.T., (1991) Effects of unilateral eyestalk ablation on growth and reproductive parameters in wild and pond-reared giant tiger prawn Penaeus monodon (Fabricius) broodstock.
Philippine Scientist Volume 28

Fermin, J.D.T., (1991) Effects of unilateral eyestalk ablation on ovarian histology and oocyte frequency in wild and pond-reared giant tiger prawn Penaeus monodon (Fabricius) broodstock.
Aquaculture Volume 93

Fermin J.D.T. and Pudadera, R. A. , (1989) Ovarian maturation stages of the wild giant tiger prawn Penaeus monodon Fabricius.
Aquaculture Volume 77

Marte, C.L., Sherwood, N., Crim, L. and Tan, J.D. , (1988) Induced spawning of maturing milkfish (Chanos chanos) using human chorionic gonadotropin and mammalian and salmon gonadotropin releasing hormone analogues.
Aquaculture 73: 333-340 Volume 73

Tan, J.D., Nagahama Y., and Goetz, F.W. , (1987) Shift in steroidogenesis in the ovarian follicles of the goldfish (Carassius auratus) during gonadotropin-induced oocyte maturation.
Development, Growth and Differentiation 28 (6): 555-561 Volume 28, No. 6

Tan, J.D., Ferraris R.P. and de la Cruz, M.C. , (1987) Development of the digestive tract of milkfish Chanos chanos (Forsskal): histology and histochemistry.
Aquaculture Volume 61

Tan J. D., Adachi, S. and Nagahama, Y. , (1986) The in vitro effects of cyclic nucleotides, cyanoketone and cycloheximide on the production of estradiol-17 beta by vitellogenic ovarian follicles of goldfish Carassius auratus.
General and Comparative Endocrinology Volume 63, No. 1

Tan, J. D., (1985) A histological study of the hypophysial-gonadal system during sexual maturation and spawning in the milkfish Chanos chanos Forsskal.
Journal of Fish Biology Volume 26

Fermin, J.D.T., () Reclassification of maturation stages of the ovary in wild giant tiger prawn.
SEAFDEC Asian Aquaculture Volume 10, No. 4

Fermin, J.D.T., () Research Update: Artificial propagation of the native catfish Clarias macrocephalus Gunther.
SEAFDEC Asian Aquaculture Volume 14, No. 1

Fermin, J.D.T., (1999) Seed Production of the Native Catfish,
a Flyer

Fermin, J.D.T., (2003) Catfish Aquaculture
SEAFDEC Asian Aquaculture Volume 25, No. 4

Fermin, J.D.T., (2008) Breeding and Seed Production of Native Catfish
Clarias macrocephalus, a manual

Fermin, J.D.T, (2008) Grow-out Culture of Native Catfish
Clarias macrocephalus, a manual,

Tan, J.D., (2003) Reprooductive biology , embryonic development, larval morphology and larval rearing trials in the blue tang Paracanthurus hepatus (Linnaeus)
MS (under Revision)

Papers Presented:

• Developing new species for propagation - the blue tang experience. , The Third Aquarama World Conference, Advanced Technology in Ornamental Fish Aquaculture. Singapore,
• Reproductive biology, embryonic development, and larval morphology in the blue tang Paracanthurus hepatus. , World Aquaculture 2002 Conference, Beijing, China.
• Serum steroid profiles, reproductive and larval performance of the Asian catfish Clarias macrocephalus (Gunther) during the off- and peak reproductive season. , Fourth Congress of the Asia and Oceana Society for Comparative Endocrinology, Academia Sinica, Taipei, Taiwan, R.O.C. Taipei, Taiwan: Academia Sinica, Institute of Zoology.
• Research on freshwater fishes. Responsible Aquaculture Development in Southeast Asia. , Seminar-Workshop on Aquaculture Development in Southeast Asia; Iloilo City, Philippines; Tigbauan, Iloilo City, Philippines: SEAFDEC Aquaculture Department.
• Serum steroid profiles, reproductive and larval performance of the Asian catfish Clarias macrocephalus (Gunther) during the off- and peak season. , Fourth Congress of the Asia and Oceania Society for Comparative Endocrinology, Taipei, Taiwan.
• Ovatide - a new, cost-effective spawning agent for the Asian catfish Clarias macrocephalus (Gunther)., World Aquaculture '99 Conference, Sydney, Australia.
• Seminal plasma composition, sperm motility, and milt dilution in the catfish Clarias macrocephalus (Gunther). , International Union of Biological Sciences-Reproductive Biology in Aquaculture Workshop on Molecular Aquaculture of Fish, National University of Singapore.
• Gonad development and serum steroid hormone profiles in the hatchery-bred catfish Clarias macrocephalus (Gunther) during an annual reproductive cycle. , The Fifth Asian Fisheries Forum, Chiang Mai, Thailand.
• Spawning catfish Clarias macrocephalus at different times during an annual reproductive cycle. , International Workshop on the Biological Bases for Aquaculture for Siluriformes, Montpellier, France.
• Milt-egg ratio in artificial fertilization of the Asian catfish, Clarias macrocephalus (Gunther), injected salmon gonadotropin-releasing hormone analogue and domperidone. , International Workshop on the Biological Bases for Aquaculture for Siluriformes, Montpellier, France.
• LHRHa and pimozide-induced breeding in the catfish Clarias macrocephalus (Gunther). , Third Asian Fisheries Forum, Singapore.
• LHRHa and pimozide-induced breeding in the catfish Clarias macrocephalus (Gunther). , National Seminar-Workshop on Breeding and Seed Production of Cultured Finfishes in the Philippines, Tigbauan, Iloilo, Philippines.
• Hormonal induction of final maturation and ovulation in the catfish Clarias macrocephalus (Gunther). , Third Asian Fisheries Forum, Singapore
• Induction of sex inversion in juvenile grouper, Epinephelus malabaricus (Bloch & Schneider) by bi-weekly injections of 17 alpha-methyltestosterone. , Hormones and the Environment, Proceedings of an International Symposium held at University of Hongkong.
• Effects of unilateral eyestalk ablation on ovarian maturation in wild and pond-reared giant tiger prawn Penaeus monodon (Fabricius) broodstock. , Fifth International Congress of Invertebrate Reproduction, Nagoya, Japan.
• Characterization of the ovarian maturation stages of wild unablated Penaeus monodon Fabricius. , First International Conference on the Culture of Penaeid Prawns/Shrimps, Iloilo City, Philippines,
• The developmental morphology of the digestive tract in the milkfish Chanos chanos Forsskal. , Second International Milkfish Aquaculture Conference, Iloilo City, Philippines,
• A histological study of the hypophysial-gonadal system during sexual maturation and spawning in the milkfish Chanos chanos Forsskal. , Second International Milkfish Aquaculture Conference, Iloilo City, Philippines.