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Light color and ovarian maturation in unablated and ablated giant tiger prawn Penaeus monodon (Fabricius)
Primavera, Jurgenne 
; (Elsevier, 1992)
; (Elsevier, 1992)
The effect of light color (green, blue and white fluorescent lights, with natural light as a control) on maturation in intact and eyestalk-ablated Penaeus monodon was tested in 12-m<sup>3</sup> broodstock tanks. Size and ...
Survival rates of different Penaeus monodon Fabricius postlarval stages
Primavera, Jurgenne (National Science Development Board, 1976)
(National Science Development Board, 1976)
Four different postlarval stages (P<sub>11</sub>, P<sub>15</sub> , P<sub>21</sub>, and P<sub>25</sub>) of P. monodon were stocked in suspension nets at the rate of 200 fry/sq m with 3 nets for each postlarval stage. Pond ...
Effect of tagging on maturation and survival of ablated Penaeus monodon in painted and unpainted tanks
Primavera, Jurgenne ; (San Carlos Publications, University of San Carlos, 1989)
; (San Carlos Publications, University of San Carlos, 1989)
A study was conducted to determine the effects of tags and tank color on reproductive performance and survival of pond-reared Penaeus monodon after eyestalk ablation. In 1986, the best over-all reproductive performance was ...
Preliminary results of feeding aquatic macrophytes to Penaeus monodon juveniles
Primavera, Jurgenne ; (Elsevier, 1989)
; (Elsevier, 1989)
Penaeus monodon juveniles (PL<sub>50</sub>) were fed live and decaying aquatic macrophytes and a commercial grow-out pellet (40% crude protein) in 80-l glass tanks over a 30-day period. Growth and survival were significantly ...
Effect of different mangrove-to-pond area ratios on influent water quality and WSSV occurrence in Penaeus monodon semi-intensive farms using the greenwater culture technique
Tendencia, Eleonor ; ; Primavera, Jurgenne ; (Elsevier, 2012)
; ; Primavera, Jurgenne ; (Elsevier, 2012)
White spot syndrome virus (WSSV) has been affecting the shrimp industry worldwide for two decades now. It continues to bring economic losses to affected farms. Despite the many studies on its epidemiology, there is no ...
A survey of chemical and biological products used in intensive prawn farms in the Philippines
Primavera, Jurgenne ; ; ; (Elsevier, 1993)
; ; ; (Elsevier, 1993)
With attractive prawn export prices and the availability of hatchery fry and commercial feeds, Philippine aquaculture has experienced a shift from milkfish to prawn Penaeus monodon and an intensification from traditional ...
Genetic diversity of wild and cultured black tiger shrimp (Penaeus monodon) in the Philippines using microsatellites
; Primavera, Jurgenne ; ; ; ; (Elsevier, 2001)
; ; ; ; (Elsevier, 2001)
Six microsatellites were used to study (1) the genetic diversity of wild <i>Penaeus monodon</i> shrimp from four geographic regions (Palawan, Quezon, Capiz and Negros Occidental-W) in the Philippines, and (2) its association ...
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 ...
Effect of different stocking combinations on growth, production and survival of milkfish (Chanos chanos Forskal) and prawn (Penaeus monodon Fabricius) in polyculture in brackishwater ponds
; Primavera, Jurgenne (Elsevier, 1981)
(Elsevier, 1981)
Milkfish (Chanos chanos) and prawn (Penaeus monodon) were stocked in 500 m2 earthen ponds from 12 November 1978 to 15 March 1979 at the following combinations: 2000 milkfish fingerlings per ha (treatment I); 2000 milkfish ...
Studies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching rates
Primavera, Jurgenne ; (Elsevier, 1981)
; (Elsevier, 1981)
Eggs of Penaeus monodon are classified into five different types on the basis of morphological criteria and hatching rates — A1 eggs undergo normal development with 58% hatching rate; A2 eggs show delayed and/or abnormal ...