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Interaction between test and reference populations when tilapia strains are compared by the “internal control” technique
(Elsevier, 1990)
Several strains of Oreochromis niloticus, O. mossambicus and their hybrids occur in the Philippines, and others are likely to be introduced or developed locally in the near future. Our objective was to study biological ...
Occurrence of luminous bacterial disease of Penaeus monodon larvae in the Philippines
(Elsevier, 1990)
Larval mortalities associated with luminescence have been observed in epizootic proportions in black tiger prawn (Penaeus monodon) hatcheries in Panay Island, Philippines. Luminescent vibrios, identified as Vibrio harveyi ...
Uptake and some physiological effects of mercury on water hyacinth, Eichhornia crassipes (Mart) Solms.
(SEAMEO, 1990)
The uptake and growth effects of mercury (Hg) on Eichhornia crassipes under field conditions and with lakewater as cultural medium were investigated. Absorption of the heavy metal increase with higher levels of Hg in the ...
Cryopreservation of the euryhaline rotifer Brachionus plicatilis embryos
(Elsevier, 1990)
A method for the separation and cryopreservation of Brachionus plicatilis embryos is described. Juveniles with uniform development were collected from a cultured stock by passing them through a series of nets. Collected ...
Vertical rope cultivation of Gracilaria (Rhodophyta) using vegetative fragments
(Walter de Gruyter, 1990)
Preliminary field culture of Gracilaria using vegetative fragments inserted between braids of ropes suspended vertically inside a floating cage was undertaken to assess the daily growth rate and monthly yield as influenced ...
The macronutrient composition of natural food organisms mass cultured as larval feed for fish and prawns
(Society of Israeli Aquaculture and Marine Biotechnology, 1990)
The macronutrient composition of natural food organisms that are mass cultured as feed for the larval stages of fish and prawns in the SEAFDEC Aquaculture Department was determined by chemical analysis. The food organisms ...
Spawning response latency and egg production capacity of LHRHa-injected mature female sea bass, Lates calcarifer Bloch
(Blackwell Publishing, 1990)
Mature female sea bass (Lates calcarifer Bloch) were injected once intramuscularly with 20 μg luteinizing hormone-releasing hormone analogue (D-Ala<sup>6</sup>, Pro<sup>9</sup>-LHRH-ethylamide) per kg body weight (BW) at ...
Growth performance of Penaeus monodon in lablab, lumut, and digman ponds under various farm practices
(Taylor & Francis, 1990)
The influence of lablab, lumut (filamentous algae), and digmaan (Najas graminea) on the growth of prawns as associates of natural food biomass in brackishwater ponds was investigated. Ponds, each grown with the above ...
Ion chromatography of nitrite, bromide and nitrate ions in brine samples using a chloride-form anion-exchange resin column
(Elsevier, 1990)
In aquaculture research, maintenance of water culture quality is of great importance. Recent improvement in fishpond management and fish culture systems, such as intensive feeding and fertilization, have created complex ...
Effect of dietary protein and energy level on growth, protein utilization and carcass composition of rabbitfish, Siganus guttatus
(Elsevier, 1990)
Six semipurified diets comprising three levels of protein (25, 35, 45% of dry matter) each at two levels of estimated energy (3161, 3832 kcal/kg) were fed to fry for 8 weeks in 250-l tanks at a stocking density of 80 ...