Yogesh Solanki author K.L. Jetani author Sajid I. Khan author Anil S. Kotiya author Nayan P. Makawana author Mohd Ashraf Rather author text article 2012 eng In the present study, cage culture of spiny Lobster in 124days was carried out and effect of different stocking density on growth and survival was find out. At present there are no commercially feasible lobster farming practices anywhere in the world. Maximum growth was obtained in treatment with 20 lobsters/cage with weight gain of 48.95% followed by 45.65% and 42.45 % weight in a treatment with 10 lobsters/cage and 30 lobsters/cage respectively. Survivability recorded from 30 lobsters/cage was observed to be 24.66% whereas it was 21% in 20 lobsters/cage and 0 % in 10 lobsters/cage, this was affected due to low temperature during winter season. Maximum FCR recorded during experiment were 39:1, 35:1 in treatment 30 and 20 numbers stocking density respectively. Among all treatment better growth in term of SGR recorded was from 20 lobsters/cage followed by 30 lobsters/cage and 10 lobsters/cage stocking density and it was 0.38, 0.35 and 0.31 respectively. 2008-8019 3 v. 1 no. 2012 3 14 http://www.journal-aquaticscience.com/article_93746_065f10d3759bbdf374dec676cbe37639.pdf Lawrence Ikechukwu Ezemonye author Alex Ajeh Enuneku author text article 2012 eng The hepatic bioaccumulation of cadmium in Hoplobatrachus occipitalis and Bufo maculatus were assessed for 14 and 28 days respectively. The amphibians were exposed to sub lethal cadmium concentrations of 0.25, 0.50, 1.00 and 2.00 mg/l. Bioaccumulation in H. occipitalis and B. maculatus increased significantly (p<0.05) in both periods of exposures. There was no significant difference in bioaccumulation between the 14 and 28 days exposures. There was also no significant difference in the bioaccumulation of cadmium between two amphibian species. The study suggested that the release of cadmium into the environment could possibly affect the well-being of amphibians as well as resulting in further decline of these very sensitive organisms that contribute significantly to the food web. There is therefore the need to protect amphibians from habitat alteration due to cadmiumpollution with a view to sustaining the rich biodiversity in the Nigerian Niger Delta ecological zone. 2008-8019 3 v. 1 no. 2012 15 22 http://www.journal-aquaticscience.com/article_93747_42c9eaa11500c5d978a76816ee6cb933.pdf Abi Abinawanto author Khairani Nurman author Retno Lestari author text article 2012 eng Our previous study showed the optimum concentration of DMSO combined with 189M of extender to maintain spermatozoa quality of Osphronemus goramy, 24 hours post- cryopreservation. The present study was conducted to investigate the effect of various concentrations of sucrose on sperm quality of Osphronemus goramy 48 hours post- cryopreservation. Mature males Osphronemus goramy obtained from a private commercial hatchery were brought into laboratory. The ejaculates from a total of three males were collected by hand stripping. The ejaculated semen were diluted with the solvent (sucrose-fish ringer + 10% methanol; 1: 9). Sucrose concentrations which are used in this study were: 0%, 0.1%, 0.3%, 0.5%, 0.7%, and 0.9%, respectively. Samples were then equilibrated at 4°C for 10 minutes, and were freezed at -34°C for 48 hours. Thawing was carried out at 40°C for 1—2 min. Based on Anova test, there were significant effect (P<0.05) of various concentrations of sucrose on post-thawed sperm motility, viability, and abnormality, compared to control (0% of sucrose). According to the Tukey test, the concentration of 0.5% of sucrose showed significant difference (P<0.01) on post-thawed motility, viability, and abnormality, respectively. Zero point five percent of sucrose showed the highest post-thawed sperm motility (81.62±4.19) %, and post-thawed sperm viability (82.17±2.56) %, and the lowest post-thawed abnormality (12.5±1.52) %. Our finding showed the optimum concentration of sucrose as extender. 2008-8019 3 v. 1 no. 2012 23 28 http://www.journal-aquaticscience.com/article_93748_ad466f2570634b6e1aba23b5ecd19e41.pdf Shabir Ahmad Dar author A. M. Najar author M. H. Balkhi author Mohd Ashraf Rather author Rupam Sharma author text article 2012 eng The length-weight relationship of Schizopyge esocinus were calculated for males, females. The relationship was analyzed using the formula W= a Lb which was further transformed into Log W = a+b logL. A total of 582 specimens comprising 277 males, 305 females with different size groups. The equation obtained for males was; log W = - 4.1567 + 2.897 logL; for females: logW = - 4.5089 + 2.8618 logL; The regression coefficients between males and females did not show any significant difference while significant difference could be noticed between males and between females (p < 0.01). Studies on relative condition factor (Kn) of Schizopyge esocinus revealed that the fluctuations in 'Kn' values can be attributed to spawning cycle as well as feeding intensity. 2008-8019 3 v. 1 no. 2012 29 36 http://www.journal-aquaticscience.com/article_93749_9b96a2615736e594cbf45944bfc7385c.pdf Fikrat M. Hassan author Rafia A. Hadi author Thaer I. Kassim author Jinan S. Al-Hassany author text article 2012 eng A study of epiphytic algae in restored marshes in Mesopotamian marshes, southern Iraq was carried out seasonally from winter 2008 to spring 2009. Four sites were selected in Al- Hawizah marshes (Um El-Wared, Um El-Na'aj, Al-Adaim and Soda north). Samples of epiphytic algae were collected from four species of host hydrophytes (Phragmites australis Trin ex, Typha domengensis Pers, Ceratophyllum demersum L. and Potamogeton pectinatus L.). In this study, five classes, twenty seven genera and fifty-five species of epiphytic algae were described. Seven species and two varieties of identified epiphytic algae in this study were new records to the flora of algae in Iraq for the first time. 2008-8019 3 v. 1 no. 2012 37 57 http://www.journal-aquaticscience.com/article_93750_f2a33d8d67dfc0e64e065ed45b8db9d9.pdf Bolaji A. Dunsin author Clement A. Edokpayi author Muyideen O. Lawal author text article 2012 eng Melanoides tuberculatus (Muller, 1774) an invasive species that serves as vector transmitting several diseases causing parasites was found inhabiting a drainage channel in University of Lagos. The prevailing environmental conditions of the drainage channel were studied between February and July 2006. Standard methods were used to collect and analyze samples. pH ranged from 6.30 to 7.70. The Air and water temperatures ranged between 29.37±2.29 ºc and 28.62±2.00 ºc respectively. Conductivity, total dissolved solid (TDS), salinity, dissolved oxygen, biochemical oxygen demand, nitrate, copper, phosphate and sulphate ranged between 37.17±13.60 µscm-1, 18.50±6.75 ppm, 0.04±0.05‰, 4.28±0.34 ppm, 6.17±3.19 ppm, 1.03±0.27 ppm, 0.03±0.05 ppm, 0.20±0.36 ppm and 10.17±5.38 ppm respectively. pH significantly correlated with water temperature (r=0.891, P < 0.05); TDS significantly correlated with nitrate (r=0.845, P < 0.05) and conductivity (r=1.000, P < 0.05); nitrate correlated significantly with conductivity (r=0.834, P < 0.05) and copper correlated significantly with phosphate (r=0.987, P < 0.05). The observed environmental factors that favour colonization of M. tuberculatus in the drainage channel suggest its possible spread in several water bodies in Nigeria. 2008-8019 3 v. 1 no. 2012 58 70 http://www.journal-aquaticscience.com/article_93751_78a2c3972560c8e6794b5b44f666b8c2.pdf Kausik Mondal author Anilava Kaviraj author Pratap Kumar Mukhopadhyay author text article 2012 eng Fermented mulberry leaf (Morus indica) meal (MLM) was used as the main protein supplement to partially replace fishmeal (FM), mustard oil cake (MOC) and rice bran (RB) in the formulation of four experimental diets for the Indian minor carp Labeo bata. The four diets contained 0, 65, 75 and 80% MLM thereby replacing respectively 0, 50, 75 and 80% of FM, 0, 64, 64 and 74 % of MOC and 0, 77, 90 and 90% of RB. The diet containing 65% MLM (replacing 50% of FM, 64% of MOC and 77% of RB) appeared to be best diet in terms of growth, nutrient deposition and digestive enzyme activities of the L. bata fingerlings. It was concluded that inclusion of MLM as feedstuff to replace fishmeal in the formulation of diet of L. bata was a viable option provided crude fibre content of the diet did not exceed 5.63% of the dry weight of the diet. 2008-8019 3 v. 1 no. 2012 72 83 http://www.journal-aquaticscience.com/article_93752_5dd2a5996f4c5e84ade8355923250b93.pdf