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Now showing items 41-50 of 61
Journal: Kalikasan, The Philippine Journal of Biology
Effect of light quality and eyestalk ablation on ovarian maturation in Penaeus monodon
; Primavera, Jurgenne 
(University of the Philippines Los Baños, 1981)
(University of the Philippines Los Baños, 1981)
Prawns were subjected to the following treatments: blue light, red light, natural light, and natural light plus unilateral eyestalk ablation. Unablated prawns under blue and natural light developed stage III ovaries; under ...
Journal: The Philippine Journal of Fisheries
Pond culture of sugpo, P. monodon (Fabricius)
Primavera, Jurgenne ; (BFAR, 1976)
; (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 ...
Journal: Reviews in Fisheries Science
Stock enhancement of threatened species in Southeast Asia
; ; Quinitio, Emilia T. ; ; Lebata, Ma. Junemie Hazel L. ; ; Garcia, Luis Maria ; Primavera, Jurgenne (Taylor & Francis, 2008)
; ; Lebata, Ma. Junemie Hazel L. ; ; Garcia, Luis Maria ; Primavera, Jurgenne (Taylor & Francis, 2008)
Natural populations of global inshore fisheries are coming under heavy pressure, primarily due to overexploitation and habitat degradation. Stock enhancement of hatchery-reared seeds is perceived as an alternative strategy ...
Journal: Kalikasan, The Philippine Journal of Biology
Feeding regimes in relation to reproduction and survival of ablated Penaeus monodon
Primavera, Jurgenne ; ; (University of the Philippines at Los Baños, 1979)
; ; (University of the Philippines at Los Baños, 1979)
Pond-reared P. monodon were stocked in four 12-cu m flowthrough maturation tanks at 25 males and 50 females per tank; females were unilaterally ablated. The combinations of feeds for the morning and afternoon rations were ...
Journal: Biological Conservation
Assessment of the effectiveness of mangrove rehabilitation using exploited and non-exploited indicator species
; ; Lebata, Junemie H. ; ; Primavera, Jurgenne (Elsevier, 2007)
; ; Primavera, Jurgenne (Elsevier, 2007)
Mangrove forests have been cleared at an alarming rate over the last century to allow space for settlements, agriculture and aquaculture and are still used today for fuel and construction. However, in the last few decades ...
Journal: Marine and Freshwater Research
Evaluation of hatchery-based enhancement of the mud crab, Scylla spp., fisheries in mangroves: comparison of species and release strategies
Lebata, Ma. Junemie Hazel L. ; ; ; ; Quinitio, Emilia T. ; ; Primavera, Jurgenne (CSIRO Publishing, 2009)
; ; ; ; Quinitio, Emilia T. ; ; Primavera, Jurgenne (CSIRO Publishing, 2009)
Ranching, stock enhancement and restocking are management approaches involving the release of wild or hatchery-bred organisms to enhance, conserve or restore fisheries. The present study, conducted from April 2002 to ...
Journal: Philippine Quarterly of Culture & Society
The yellow mangrove: its ethnobotany, history of maritime collection, and needed rehabilitation in the central and southern Philippines
Primavera, Jurgenne ; (University of San Carlos Publications, 2000)
; (University of San Carlos Publications, 2000)
Most mangrove reforestation program in the Philippines and elsewhere in Asia focus on the genus Rhizophora, hence there is a need to identify and develop planting and harvesting techniques for other mangrove species, ...
Journal: Reviews in Fisheries Science
A critical review of shrimp pond culture in the Philippines
Primavera, Jurgenne (Taylor & Francis, 1993)
(Taylor & Francis, 1993)
The paper reviews and evaluates shrimp pond culture in the Philippines and its ecological and socioeconomic effects. The intertwined histories of the country's mangrove forests and culture ponds are treated in depth; ...
Journal: Bulletin of Marine Science
Stable carbon and nitrogen isotope ratios of penaeid juveniles and primary producers in a riverine mangrove in Guimaras, Philippines
Primavera, Jurgenne (University of Miami, Rosenstiel School of Marine and Atmospheric Science, 1996)
(University of Miami, Rosenstiel School of Marine and Atmospheric Science, 1996)
Stable carbon and nitrogen isotope ratios were analyzed for primary producers and juveniles of four penaeid species (Metapenaeus ensis, Penaeus indicus, P. merquiensi and P. monodon) in a riverine mangrove in Guimaras, ...
Journal: Crustaceana
Notes on the courtship and mating behavior in Penaeus monodon Fabricius (Decapoda, Natantia)
Primavera, Jurgenne (Brill Academic Publishers, 1979)
(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; ...