Browsing Journal Articles by Issue Date
Now showing items 1-20 of 1247
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Pond culture of sugpo, P. monodon (Fabricius)
Primavera, Jurgenne
; (BFAR, 1976)
A resume is presented of the practical considerations involved in establishing a sugpo pond culture operation, as a guide to fish farmers, extension workers and others interested in producing marketable sugpo in the ... -
Larvae of decapod crustacea of the Philippines - I. The zoeal stages of a swimming crab, Charybdis cruciata (Herbst) reared in the laboratory
(The Japanese Society of Scientific Fisheries, 1976)Six zoeal stages of Charybdis cruciata (Herbst) which are reared in the laboratory, are described. The zoea has a rostral, a dorsal and a pair of laterial spines. There are a pair of lateral hooks on the 2nd and 3rd abdominal ... -
Note: larvae of decapod crustacea of the Philippines. II. Laboratory-hatched first zoea of box crab
(College of Agriculture and Central Experiment Station, University of the Philippines at Los Baños, 1976)This is the first report in the world on the characters of the first zoea of Calappa philargius under laboratory conditions. The zoea has a rostral, a dorsal and a pair of lateral spines on the carapace. The average length ... -
Induction of maturity and spawning in Penaeus monodon Fabricius, 1798, by unilateral eyestalk ablation (Decapoda, Natantia)
(Brill Academic Publishers, 1976)Preliminary experiments carried out at the Aquaculture Department of the Southeast Asian Fisheries Development Centre in the Philippines have achieved success in the rearing of viable F1 postlarvae of Penaeus ... -
The larval stages of benizuwai-gani, Chinoecetes japonicus Rathbun reared in the laboratory
(The Japanese Society of Fisheries Science, 1976)This study deals with the larval stages of C. japonicus, and with the comparison with those of Zuwaigani, C. opilio. There are 2 zoneae and 1 megalopa. The larval stages of C. japonicus are morphologically similar to those ... -
Notes on the external sex characters of Chanos chanos (Forskal) spawners
(Fisheries Research Society of the Philippines, 1976)In the present study, no visible differences between the sexes of C. chanos with reference to external features such as colouration, shape of head, snout and operculum, presence of tubercles or nasal pores, length, size ... -
Effect of different stocking densities on survival and growth of sugpo (Penaeus monodon Fabricius) in a milkfish-rearing pond
Primavera, Jurgenne; ; (STII-DOST, 1976)
Employing a direct stocking monoculture method, postlarval P. monodon were stocked in 8 compartments of a shallow milkfish rearing pond at densities of 1, 2, 3 and 4/sq m with replicates. Feeding was exclusively natural ... -
A simple method of tagging prawns
(University of the Philippines, 1976)The recognition of individual animals is crucial to many aspects of research. Prawns present unique difficulties in this respect since they molt regularly. Thus almost all tagging and marking methods developed for prawns ... -
Survival rates of different Penaeus monodon Fabricius postlarval stages
Primavera, Jurgenne (National Science Development Board, 1976)
Four different postlarval stages (P11, P15 , P21, and P25) of P. monodon were stocked in suspension nets at the rate of 200 fry/sq m with 3 nets for each postlarval stage. Pond ... -
Variation in the vertebral number of the milkfish Chanos chanos, collected from various localities
(The Faculty of Fisheries, Nagasaki University, 1977)A total of 2497 milkfish fry were collected in 1976 from nine localities in six countries, viz. India, Thailand, Indonesia, Philippines, Taiwan and Tahiti. Vertebra counts ranged from 40 to 45. The general trend of ... -
Decapsulation of Artemia cysts: A simple technique for the improvement of the use of brine shrimp in aquaculture
(Elsevier, 1977)Although it is a common practice in different disciplines of fundamental research on the brine shrimp, and despite the very interesting applications that it offers for the use of Artemia in aquaculture, the "decapsulation" ... -
Effects of furanace on zoeae and mysis of Penaeus monodon.
(University of the Philippines at Los Baños, 1977)The toxicity of the chemotherapeutant Furanace on Z2 and M1 of the jumbo tiger prawn Penaeus monodon was assayed for a period of 24 hr. The LD50 for Z2 was 1.6 mg per liter; for ... -
Population biology of the Japanese little-neck clam, Tapes philippinarum, in Kaneohe Bay, Oahu, Hawaiian Islands
(University of Hawaii Press, 1977)The Japanese little-neck clam, Tapes philippinarum, an introduced species in Kaneohe Bay, Oahu, Hawaiian Islands, has a thriving population only in a U5-hectare mud flat after heavy fishing triggered depletion in six other ... -
Successful spawning of cultured Penaeus monodon Fabricius after eyestalk ablation
(Elsevier, 1977)Preliminary experiments resulted in successful spawning of captive stock of the prawn Penaeus monodon, or “sugpo”, to complete the life cycle and produce a viable F1 generation of larvae. Gonadal development was induced ...
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Mass production in concrete tanks of sugpo Penaeus monodon Fabricius spawners by eyestalk ablation
Primavera, Jurgenne; ; (Fisheries Research Society of the Philippines, 1978)
Two batches of 196 and 181 P. monodon females were ablated on one eyestalk in March and July 1977, respectively, and a control batch of 180 unablated females was stocked in July 1977. The females were stocked with males ... -
Ovarian rematuration of ablated sugpo prawn Penaeus monodon Fabricius
Primavera, Jurgenne; (Institut National de la Recherche Agronomique, 1978)
Spent Penaeus monodon females were tagged around one eyestalk with numbered brass tags, stocked in a concrete tank with males, and periodically examined for ovarian rematuration over a six-month period (February to August, ... -
Settlement preference of the brown mussel, Modiolus metcalfei, Hanley and its implication on the aquaculture potential of the species
(Fisheries Research Society of the Philippines, 1978)A study on the settlement preference of M. metcalfei was made in Banate Bay, Iloilo, using four types of materials as spat collectors. During the six-month study period, not a single Modiolus spat was found in any of the ... -
Use of hormones in breeding cultivated warm-water fishes with special reference to milkfish, Chanos chanos (Forskal)
(Fisheries Research Society of the Philippines, 1978)The role of hormones in the controlled reproduction of a few test fishes is well documented. However, information on the mechanisms of endocrine regulation of ovulation in cultivated warm-water fishes is very meagre. ... -
Toxicity of malachite green to the larvae of Penaeus monodon
(University of the Philippines at Los Baños, 1978)The toxicity of malachite green to the larvae of the jumbo tiger prawn Penaeus monodon was determined in a static bioassay. Daily larval death was directly proportional to the chemical concentration of and exposure time ... -
Present prawn culture in the Philippines.
(Bureau of Fisheries and Aquatic Resources, 1978)This paper discusses present prawn culture practices in the Philippines, as well as the experiments which are conducted at the SEAFDEC Aquaculture Department by reviewing production of fry, production of juveniles in nursery ...
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