Browsing Journal Articles by Title
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Natural spawning, egg and fry production of milkfish, Chanos chanos (Forsskal), broodstock reared in concrete tanks
(Blackwell Publishing, 1994)Gonadal maturation, rematuration, and spawning of nine- (1982 stock) and ten-year-old (1981 stock) milkfish reared in 150 and 200 m3 concrete tanks were observed in 1990 and 1991. From 23 September to 9 November ... -
Nature parks, museums, gardens, and zoos for biodiversity conservation and environment education: the Philippines
(Springer Verlag, 1998)Public consciousness about biodiversity and the environment, and their importance for sustainable development is not widespread in the Philippines. This article advocates nonformal environment education through nature ... -
Nature's subsidies to shrimp and salmon farming
(American Association for the Advancement of Science, 1998)Although many fisheries stocks have declined precipitously throughout the world, fish farming--and especially shrimp and salmon farming--has boomed. The increasingly large scale of these enterprises is now having unforeseen ... -
Navigating risks and uncertainties: Risk perceptions and risk management strategies in the Philippine seaweed industry
(Elsevier, 2021-04)The Philippine seaweed industry is affected by multiple but interrelated risks. Farmers mainly encountered environment-related risks (e.g. disease, pest infestations) which, if unmanaged, could result to production failure. ... -
Net mesh size affects production of giant freshwater prawn Macrobrachium rosenbergii cultured in lake-based cages
(Wiley, 2013)Cage culture of freshwater prawns in open waters is prone to the entry of predators and competitors that particularly hamper production. This study was conducted to determine how smaller net mesh sizes to reduce entry of ... -
Netcage rearing of the Asian seabass Lates calcarifer (Bloch) in brackishwater pond: The technical and economic efficiency of using high protein diets in fingerling production
(College of Agriculture, University of the Philippines Los Baños, 2012)Intensification in the grow-out culture of high-value fish requires a large quantity of quality fingerlings. Fingerling production is a component of fish farming that comprises nursery and grow-out culture, and may be a ... -
A new device for recording the feeding activity of milkfish
(The Japanese Society of Scientific Fisheries, 1981)Knowledge on the feeding activity is basic and very important for rearing fish. The information on the feeding activity rhythm of the animal suggests the proper time to feed it. Many devices have been designed to record ... -
New records of a marine macrobenthic algae of Panay and Guimaras Islands
(Science and Technology Information Institute, 1992)Thirty new records of macrobenthic algae for Panay and Guimaras Islands are reported, consisting of 12 species of Chlorophyceae, 4 Phaeophyceae and 14 Rhodophyceae. -
A new species of the sanguinea-group Quatrefages, 1866 (Annelida: Eunicidae: Marphysa) from the Philippines
(Magnolia Press, 2019-09-24)A new species of the Marphysa sanguinea group, M. iloiloensis n. sp. (Annelida: Eunicida: Eunicidae), is described from the Marine Annelids Hatchery of the Southeast Asian Fisheries Development Center, Aquaculture Department ... -
Nitrogen and phosphorus digestibility and excretion of different-sized groups of milkfish (Chanos chanos Forsskal) fed formulated and natural food-based diets
(Blackwell Publishing, 2003)This study determined the digestibility of nitrogen and phosphorus, and the excretion rate of different-sized groups of milkfish fed a commercial diet, a SEAFDEC formulated diet or lab-lab (natural food-based diet). Fish ... -
Nitrogen and phosphorus utilization in the cyanobacterium Microcystis aeruginosa isolated from Laguna de Bay, Philippines
(Springer Verlag, 2007)Phytoplankton supports fisheries and aquaculture production. Its vital role as food for aquatic animals, like mollusks, shrimp, and fish cannot be overemphasized. Because of its contribution as a food source for fish, the ... -
Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis
(Taylor & Francis, 2017)Ontogenetic niche shifts in diet are a consequence of changes in body size or resource partitioning between age classes. To better resolve the feeding patterns of the Japanese scallop Mizuhopecten yessoensis, we examined ... -
Nodavirus infection in hatchery-reared orange-spotted grouper Epinephelus coioides: First record of viral nervous necrosis in the Philippines
(Japanese Society of Fish Pathology, 2002)Mass mortality occurred in 34-day old larval orange-spotted grouper Epinephelus coioides reared at a hatchery in the Philippines with clinical signs such as anorexia and abnormal swimming behavior. Histopathology of moribund ... -
Non-linearity in ecosystem services: temporal and spatial variability in coastal protection
(Ecological Society of America, 2009)Natural processes tend to vary over time and space, as well as between species. The ecosystem services these natural processes provide are therefore also highly variable. It is often assumed that ecosystem services are ... -
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 ... -
Notes on Lagenidium from larvae of Penaeus monodon Fabricius. I. Isolation and culture in artificial media
(Fisheries Research Society of the Philippines, 1979)The fungus, tentatively identified as Lagenidium , which attacks the nauplii to postlarval stages of P. monodon , has recently been isolated and cultured from infected larvae under laboratory conditions, using several kinds ... -
Notes on the completion of the life cycle of Penaeus japonicus in captivity in the Philippines
(Science and Technology Information Institute, 1991)Penaeus japonicus nauplii from wild spawners were reared up to the early postlarval stage (PL20) in 12-t concrete tanks. A survival rate of 13-15% was obtained. Hatchery-reared postlarvae were restocked in concrete tanks ... -
Notes on the construction of 12 cu m ferrocement tank for prawn broodstock
(International Ferrocement Information Center, 1978)One of the important research studies at the Aquaculture Department of SEAFDEC is the maturation of Penaeus monodon females in captivity. Equal numbers of male and female prawns are stocked in tanks. Ovarian maturation is ... -
Notes on the courtship and mating behavior in Penaeus monodon Fabricius (Decapoda, Natantia)
(Brill Academic Publishers, 1979)Courtship and mating behavior in the sugpo or giant tiger prawn, Penaeus monodon Fabricius, are described. These are divided into three phases: parallel swimming of male and female; male turns ventral side up to female; ... -
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 ...