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Now showing items 11-15 of 15
Tolerance of Penaeus monodon eggs and larvae to fungicides against Lagenidium sp. and Haliphthoros philippinensis
(Elsevier, 1986)
The in vivo effect of mycostatic levels of fungicides against the fungi Lagenidium sp. and Haliphthoros philippinensis was tested on Penaeus monodon eggs and larvae. Hatching rate and survival of nauplii, zoeae, myses and ...
Formalin as an alternative to trifluralin as prophylaxis against fungal infection in mud crab Scylla serrata (Forsskål) larvae
(Blackwell Publishing, 2007)
The toxicity of formalin and trifluralin to the larval stages of the mud crab Scylla serrata was compared in a static bioassay. Prophylactic doses of 5, 10, 15, 20 and 25 μg L<sup>−1</sup> formalin and 0.05, 0.1, ...
Proteus mirabilis (MJA 2.6S) from saline-tolerant tilapia exhibits potent antagonistic activity against Vibrio spp., enhances immunity, controls \(\mathsf{NH_3}\) levels and improves growth and survival in juvenile giant tiger shrimp, Penaeus monodon
(Wiley, 2022-08-10)
Of several isolates from saline-tolerant tilapia exhibiting anti-vibrio activity, an isolate that demonstrated inhibitory activity with the biggest zone of inhibition against the shrimp pathogens, Vibrio harveyi and V. ...
Acute lethal toxicity of dried garlic (Allium sativum) powder on orange-spotted grouper (Epinephelus coioides) juveniles under static exposure
(European Association of Fish Pathologists, 2022-10-05)
The present study was carried out to assess the toxic effect and determine the lethal concentration of dried garlic (Allium sativum) powder on the orange-spotted grouper (Epinephelus coioides) juveniles. Laboratory static bioassays were conducted to determine the 96-h LC<sub>50</sub> of different concentrations of garlic (0, 30, 60, 90, 120, 150 and 180 mg L<sup>-1</sup>) on grouper juveniles (mean weight, 35.4±6.18 g and mean length, 13.2±0.51 cm). The 96-h LC<sub>50</sub> was 74.78 mg L<sup>-1</sup> with lower and upper confidence limits of 62.8 and 89.06 mg L<sup>-1</sup>, respectively. All fish exposed to 30 to 180 mg L<sup>-1</sup> exhibited rapid movement, faster opercular activity and erratic swimming whereas at higher concentrations (90 mg L<sup>-1</sup> to 180 mg L<sup>-1</sup>) fish showed additional behavioral changes such as loss of balance, lethargy, gulping for air and respiratory distress. Water quality parameters were within the recommended acceptable limits. This LC<sub>50</sub> value can be used as a baseline reference to generate an effective concentration of garlic for future prophylaxis and treatment for parasitic, viral and bacterial infection in grouper....
Mercury levels in the sediment, water, and selected finfishes of Laguna Lake, the Philippines
(Elsevier, 1990)
Monthly samples of sediment, water and commercially important species of fish, primarily Oreochromis niloticus and Chanos chanos , plus a few other species, were collected from the West Bay area of Laguna Lake, The Philippines ...