Breeding and Seed Production of Cultured Finfishes in the Philippines
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Proceedings of the Seminar-Workshop on Breeding and Seed Production of Cultured Finfishes in the Philippines, 4-5 May 1993, Tigbauan, Iloilo, Philippines. SEAFDEC/AQD, Tigbauan, Iloilo, Philippines.
The seminar-workshop was conducted at AQD's Tigbauan Main Station, 4-5 May 1993. About 130 scientists and technicians from Japan, Malaysia, Singapore, Canada, UK, USA, Australia, and the Philippines attended. The workshop promoted the exchange of information and views regarding breeding and seed production of various fishes. The scientists became aware of each other's past and ongoing research projects. Priority research areas were recommended and so was the closer cooperation among various institutions and private individuals who share the common goal of sustainable aquaculture. The workshop was sponsored by the Government of Japan.Recent Submissions
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Endocrine changes associated with overripening of ovulated eggs in goldfish, Carassius auratus L.
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Changes in steroid hormone levels in the serum and ovarian fluid were studied during overripening in goldfish. Ovulated eggs retained in the ovarian cavity become overripe at around 12 h after ovulation and completely ... -
Maturation of Oreochromis niloticus gonads
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)At hatching when fry were 5 to 6 mm, primordial germ cells (PGCs) were found to concentrate along the dorsomedian region of the peritoneal wall at the root of the developing mesentery and in places far from the appearance ... -
Induced spawning of the mangrove red snapper, Lutjanus argentimaculatus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Wild-caught mangrove red snapper, Lutjanus argentimaculatus, reared for a year in 4.0 m diameter by 1.5 m deep circular concrete tank spontaneously matured and were used for induced spawning trials. On 19 August 1992, a ... -
The role of cyclic amp in oocyte maturation of goldfish, Carassius auratus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The role of cyclic AMP in oocyte maturation was investigated using denuded goldfish oocytes cultured in vitro. The oocytes were stimulated with a maturation-inducing steroid (MIS), 17α, 20ß dihydroxy-4-pregnen-3-one (17, ... -
Natural spawning of four Epinephelus species in the laboratory
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Natural spawnings of four Epinephelus species reared in the laboratory were observed from 1987 to 1992. These species are: E. summana, E. caeruleopunctatus, E. macrospilus and E. fuscoguttatus. Spawning was serial, usually ... -
Workshop discussions and recommendations
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996) -
Feeding habits of hatchery-reared grouper, Epinephelus suillus larvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The feeding habits of hatchery-reared Epinephelus suillus larvae were determined by examining their gut contents. The larvae (2.6 mm TL) were initially fed rotifers on day 2 and newly-hatched Artemia nauplii on day 21 (9.1 ... -
Correlations of oocyte diameter with some morphometric characters in the nile tilapia, Oreochromis niloticus L.
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)A study was conducted to determine the correlation of oocyte diameter with some morphometric characters in a Philippine strain of Oreochromis niloticus L. One hundred and thirty-five 7- to 9-month old sexually mature female ... -
A brief account of the experience of Sabah Fisheries Department in fish larval rearing
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Venturing into the aquaculture sector especially in pond and cage culture is a step that has been taken up by entrepreneurs and traditional fishermen of Sabah. However, shortage in the supply of fish fry is a stumbling ... -
Oral administrations of chemotherapeutics via the bioencapsulation technique: A tool for therapeutic treatment in larviculture
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The application of the bioencapsulation technique as a tool for curative treatment in fish larvae was investigated. Antibacterials, trimethoprim (TMP) and sulphamethoxazole (SMX), incorporated in an oil emulsion (SELCO, ... -
Effects of single injection of carp pituitary extract and human chorionic gonadotropin on germinal vesicle migration and ovulation in lampan sungai, Puntius schwanenfeldii (Bleeker): A preliminary study
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The effects of crude pituitary extract (CPE) and human chorionic gonadotropin (hCG) on germinal vesicle migration and ovulation in lampan sungai Puntius schwanenfeldii (Bleeker) were investigated. Sexually mature female ... -
Growth and survival of milkfish (Chanos chanos) larvae reared on artificial diets
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)A preliminary feeding experiment was conducted to determine growth and survival of milkfish larvae reared on various feeding regimes involving the use of artificial diets. Two larval diets (Feed A and Feed B) containing ... -
Tilapia breeding and seed production for brackishwater culture in the Philippines
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Tilapias are important foodfishes in the Philippines second only to milkfish. While farming of tilapias in freshwater ponds and cages is already established, there is a need for wider application of the available technologies ... -
Successful use of cryopreserved oyster trocophores as a live first feed larval marine fish and invertebrates
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Trochophore-stage larvae of the Pacific oyster Crassostrea gigas were cryopreserved in bulk and stored in liquid nitrogen for periods up to two years before thawing and feeding to a variety of warmwater and coldwater larval ... -
Flounder metamorphosis: its regulation by various hormones
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The elongation and shortening of the flounder fin rays during its metamorphosis may be parallel to the appearance and resorption of the tadpole tail during amphibian metamorphosis. The dorsal fin rays of the Japanese ... -
Role of growth hormone in the adaptation to sea water of juveline brown trout, (Salmo trutta)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The first part of the study investigates the ability of ovine growth hormone (oGH) to enhance the hypo-osmoregulatory and growth performance of juvenile brown trout after exposure to sea water (SW). Three groups of fish ... -
Resistance of two Nile tilapia, Oreochromis niloticus (L.) strains exposed to a mixture of zinc, cadmium and inorganic mercury
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Two strains of one month-old Oreochromis niloticus namely CLSU (obtained from Central Luzon State University, Philippines) and NIFI (from National Inland Fisheries Institute, Thailand) were exposed to a sublethal mixture ... -
Artificial incubation for intensive fry production of Nile tilapia Oreochromis niloticus (L.)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Two experiments were conducted to evaluate and compare the production, quality, and survival of eggs and the subsequent growth and survival of fry in two small scale production systems: (i) natural incubation (NI), and ... -
Larviculture of milkfish (Chanos chanos) in outdoor tanks
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)In the past, larviculture of milkfish depended entirely on the use of rotifers and brine shrimp nauplii and rearing trials were done under roofed facilities. Since the dietary value of live food varies according to culture ... -
Review of SEAFDEC/AQD finfish seed production research
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Research on seed production of several foodfishes has been a continuing activity of SEAFDEC/AQD since 1976. Fry and juvenile production methods of these fish commodities are in various stages of advancement. For instance, ...
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