Six different diets including two rainbow trout starters, Gammarus dry powder, shrimp dry powder, egg yolk dry powder and newly hatched Artemia were used in feeding of Caspian Kutum larvae. During a 4-week trial, larvae with a mean weight of 17.5 ± 4.7 mg were fed with three replicates and growth parameters were measured at the end of the experiment. Thirty fish in each experimental unit with...

Population parameters were estimated for goatfish (Upeneus sulphureus, Cuvier, 1829) as a small size and abundant species in the Persian Gulf ecosystem. A method of Tropfish R package based on length frequencies analysis was used. A total of 520 fish samples were taken monthly from landing stations in the coastal area of Iranian Waters in the Persian Gulf (Bushehr coasts) from January 2017 to D...

this study was evaluated to study the effects of vitamin c and the bacteria bacillus subtilis, b.lichniformis on growth and carcass composition of litopenaus vannamei. three treatments were applied, treatment fed with probiotics (4×1010 cfu/kg food), treatment with vitamin c (140 mg/kg food) and the control group. three replicates were used for each treatment. shrimps were kept in nine 300-lite...

Herein, fluorescent silica (F-SiO2) ENMs (50 nm) were synthesized, which could be taken up and translocated from rice root to shoot, promoting the plant growth resistance planthopper compared with Si ion fertilizers under hydroponic conditions. Particularly, upon exposure F-SiO2 (5 mg?L?1) suspension for 9 days, fresh dry weight (FW DW) of length, surface area, tip number increased by 33.58%, 6...

Mercury (Hg) is a toxic element distributed globally through atmospheric transport. Agattu Island, located in the western Aleutian Islands, Alaska, has no history of point-sources of Hg contamination. We provide baseline levels of total mercury (THg) concentrations in breast feathers of three birds that breed on the island. Geometric mean THg concentrations in feathers of fork-tailed storm-petr...

A recent study in our laboratory has demonstrated that tetrachloroethylene (TCE) is acutely toxic to Japanese medaka (Oryzias latipes) larvae with a 96 hr-LC50 of 18 (17-19) mg/mL (Spencer et al., 2002). In the present study we hypothesize that TCE exposure induces a developmental effect in Japanese medaka. Growth and age specific sensitivity of Japanese medaka larvae were studied with four age...

Abstract Yellowfin tuna Thunnus albacares is one of the major species caught in Fisheries Management Area (FMA) 573 Indian Ocean. Its production contributed to 35.83% total 2013. The study was conducted assess population dynamics this FMA 573, based on length-frequency data collected 2013-2017, and analysed using FiSAT II software. results obtained show length-weight relationship W = 0.000052 F...

The present study was carried out to determine the ability of Acipenser baerii in utilizing carbohydrate (dextrin) as a non protein energy source substituted with animal oil. A total of 65 juveniles A. baerii with an initial mean weight of 689 ± 62 g were distributed in 15 fiber glass tanks. Five diets were formulated including 0, 5, 10, 15 and 20% of dextrin and fed  for 8 weeks. Fish were wei...

(1) Background: We studied how the generation position of air anions in a closed-type plant factory affects growth characteristics lettuce and identified optimal position. (2) Methods: used LEDs (red/green/blue = 8:1:1) as light source set temperature RH to 20 ± 2 ? 50% 5%, respectively. grew under three anion conditions—sideward, upward, downward—and compared those control grown without anions...