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Now showing items 21-30 of 42
Low ph water impairs the tactile sense of the postlarvae of the giant freshwater prawn Macrobrachium rosenbergii
(Penerbit Universiti Sains Malaysia, 2018)
The effect of low pH on the tactile sense of Macrobrachium rosenbergii postlarvae was determined in the laboratory by means of two behavioural assays: shelter (netting) occupancy and jumping response to touch stimuli (taps) ...
Gonadal maturation, fecundity, spawning and timing of reproduction in the mud snail, Cerithidea cingulata, a pest in milkfish ponds in the Philippines
(Taylor & Francis, 2001)
Gonadal maturation, spawning, fecundity and timing of reproduction of the snail <i>Cerithidea cingulata</i> in a brackish water pond in Molo, Iloilo, Philippines, are described. Snails 4–41 mm in shell length were sampled ...
Low pH affects survival, growth, size distribution, and carapace quality of the postlarvae and early juveniles of the freshwater prawn Macrobrachium rosenbergii de Man
(Springer Verlag, 2015)
Acidification of rain water caused by air pollutants is now recognized as a serious threat to aquatic ecosystems. We examined the effects of low pH (control pH 7.5, pH 6, pH 5, pH 4) on the survival, growth, and shell ...
A fundamental study on the behavior of milkfish fry for improving the efficiency of traditional fry collecting gear in the Philippines
(Kagoshima University Research Center for the South Pacific, 1980)
The reaction of milkfish fry to miving and stationary nets of different meshes and colors in an experimental tank was determined. The underwater visibility of the nets saw measured and the water filtration in a fry-sweeper ...
Ecological considerations in milkfish farming in marine pens and cages in the Philippines
(University of the Philippines in the Visayas, 1998)
Milkfish farming in the Philippines has a long history and great importance, being widely regarded as the way to domestic food security. But the industry has faced new challenges in the past decade, with the advent of many ...
Occurrence and distribution of milkfish larvae, Chanos chanos off the western coast of Panay Island, Philippines
(Springer Verlag, 1987)
The occurence and distribution of milkfish larvae (∼3–17 mm TL) off western Panay Island, Philippines are reported based on 594 plankton net tows made in April and May 1980. Forty-two tows yielded 44 larvae, together with ...
An incidence of swimbladder stress syndrome in hatchery-reared sea bass (Lates calcarifer) larvae
(Elsevier, 1986)
This paper describes an incidence of swimbladder malfunction causing high positive buoyancy and mass mortality in 2-week-old sea bass (Lates calcarifer) larvae reared in an outdoor hatchery tank under conditions of high ...
The milkfish seed resources survey in Sri Lanka: Status, problems and recommendations
(Ministry of Fisheries and Aquatic Resources, Sri Lanka, 1986)
A summary is provided of information concerning the milkfish (Chanos chanos) seed resources of Sri Lanka, highlighting problems related to seed collection. Various recommendations are made to overcome these problems and ...
Growth of juvenile milkfish Chanos chanos in a natural habitat
(Inter Research, 1985)
A population of juvenile milkfish, C. chanos (Forsskaal) was studied in a small mangrove lagoon in Naburut Island, central Philippines. Several size groups of milkfish occurred in the lagoon as a result of its periodic ...
Fishing methods and gears in Panay Island, Philippines
(Faculty of Fisheries, Kagoshima University, 1980)
The authors surveyed the fishing methods and gears in Panay and smaller neighboring islands in the Philippines in September-December 1979 and in March-May 1980. This paper is a report on the fishing methods and gears used ...