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Identifying mangrove areas for fisheries enhancement; population assessment in a patchy habitat
Lebata, Ma. Junemie Hazel 
; ; ; Primavera, Jurgenne ;
; ; ; Primavera, Jurgenne ;
<ol><li>Small-scale fisheries are an important element of the ecosystem goods and services that mangrove habitats provide, especially to poorer coastal communities that rely most on natural resources, and have similar ...
Mangroves and shrimp pond culture effluents in Aklan, Panay Is., central Philippines
Primavera, Jurgenne ; ; Lebata, M. J. H. L. ; ; (University of Miami, Rosenstiel School of Marine and Atmospheric Science, 2007)
; ; Lebata, M. J. H. L. ; ; (University of Miami, Rosenstiel School of Marine and Atmospheric Science, 2007)
The capacity of a natural mangrove system in Ibajay, Aklan province, central Philippines to process shrimp pond culture effluents was assessed through analysis of mangrove community structure and 24-hr monitoring of water ...
Mass production in concrete tanks of sugpo Penaeus monodon Fabricius spawners by eyestalk ablation
Primavera, Jurgenne ; ; (Fisheries Research Society of the Philippines, 1978)
; ; (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 ...
Effect of light quality and eyestalk ablation on ovarian maturation in Penaeus monodon
; Primavera, Jurgenne
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 ...
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 ...
Intensive prawn farming in the Philippines: ecological, social, and economic implications
Primavera, Jurgenne (Springer Verlag, 1991)
(Springer Verlag, 1991)
The benefits of intensive farming of the giant tiger prawn Penaeus monodon in the Philippines are discussed in relation to the environmental costs. Ecological effects include mangrove conversion into ponds; use of antibiotics ...
Diel activity patterns in Metapenaeus and Penaeus juveniles
Primavera, Jurgenne ; Lebata, J. (Springer Verlag, 1995)
; Lebata, J. (Springer Verlag, 1995)
Small (5–10.9 mm carapace length), medium (11–15.9 mm), and large (16–20.9 mm) juveniles of Metapenaeus anchistus, Metapenaeus sp., Penaeus monodon and P. merguiensis were stocked individually in glass tanks provided with ...
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 ...
Janitor fish Pterygoplichthys disjunctivus in the Agusan Marsh: A threat to freshwater biodiversity
; ; Primavera, Jurgenne (University of the Philippines Los Baños (UPLB), 2007-06-01)
(University of the Philippines Los Baños (UPLB), 2007-06-01)
The aim of this study is to verify reports on the presence of invasive alien catfish, known locally as janitor fish, including their possible impact on freshwater biodiversity in the Agusan Marsh, Northeastern Mindanao in ...
Ovarian rematuration of ablated sugpo prawn Penaeus monodon Fabricius
Primavera, Jurgenne ; (Institut National de la Recherche Agronomique, 1978)
; (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, ...