Search
Now showing items 1-10 of 16
Studies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching rates
(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 ...
An assessment of algal growth in net cages in Laguna Lake
(Fisheries Research Society of the Philippines, 1981)
Quantitative determination of the algal population, in terms of cells/ml and biomass/ml, was conducted during the first month of growing P. monodon postlarvae in Laguna Lake. Algae were sampled from each side of net cages ...
Studies on the habitat and food of juvenile milkfish in the wild
(Fisheries Research Society of the Philippines, 1981)
Juvenile milkfish (Chanos chanos ) were collected from several different wild environments in Panay Island and neighboring islands. The fish were measured and the food ingested examined. Conditions of milkfish habitats ...
A comparison of two prawn (Penaeus monodon ) brood stock systems—land–based tanks and marine pens
(World Aquaculture Society, 1981)
The paper compares two prawn (Penaeus monodon) brood stock systems—land-based tanks and marine offshore pens. Construction costs and annual maintenance and operating costs total US\$1,430 and \$2,550 for the tank and \$1,500 ...
Feeding behavior and food preference of Penaeus monodon Fabricius with scrap Tilapia mossambica
(Fisheries Research Society of the Philippines, 1981)
The time of day during which P. monodon feeds at different depth levels in earthen ponds, and its preference for three types of tilapia feeds (dry, fresh and fermented) were determined. It was observed that P. monodon ...
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
(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 ...
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 ...
Viability of frozen algae used as food for larval penaeids
(Fisheries Research Society of the Philippines, 1981)
Freezing with added chemicals as flocculants and protectants as means of preserving stock cultures was tried with four species commonly used as larval food. The species were Chaetoceros calcitrans, Skeletonema costatum, ...
Survival, growth and production of Penaeus monodon Fabricius at different stocking densities in earthen ponds with flow-through system and supplemental feeding.
(Fisheries Research Society of the Philippines, 1981)
Penaeus monodon juveniles (P<sub>53</sub>-P<sub>54</sub>, 0.45 g) were stocked in 200 m<sup>2</sup> earthen ponds with water exchange rate of 5-10% daily, and reared for 3.5 months. Stocking density levels of 2.5, 5.0, 10 ...
Pigmentation pattern in the early developmental stages of milkfish (Chanos chanos): A key for larval identification.
(Fisheries Research Society of the Philippines, 1981)
Pigmentation patterns are presented for 5 - 20 day old milkfish (Chanos chanos) and are discussed in terms of their use in larval identification.