The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production ... more The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production due to the surge in the development of new technologies and better understanding of the production biology of new aquaculture species. A worldwide interest in the production biology of new candidate species for aquaculture and associated technology is not only deemed to be environmentally friendly, but could also lead to an increase in the productivity of aquaculture. This rise in interest in the subject has led to a gap in the published information, as only a few comprehensive textbooks are available to meet the demand. This chapter highlights the recent developments in biotechnology and the research attempts to extend aquaculture to non traditional farming sites. The use of biotechnology during breeding strategy has been very impressive and has also been applied to deal with widespread disease issues through molecular genetics and through the use of specialised feed additives, which have a potential to enhance the immune competence of the cultured species. Captive breeding is playing an increasingly important role, and has been commercialised while producing high value freshwater ornamentals.
Growing aquatic species in inland saline water (ISW) is one way to reduce the adverse impact of I... more Growing aquatic species in inland saline water (ISW) is one way to reduce the adverse impact of ISW to agriculture farms. This 84-day laboratory-trial was conducted to study the growth of Sargassum linearifolium cultured in ocean water (OW), ISW, ISW fortified with potassium equivalent to 100% (ISW100), 66% (ISW66) and 33% (ISW33) of potassium in OW at 35 g/L. The biomass and cumulative specific growth rate (SGR) of S. linearifolium increased significantly (p < .05) with increased potassium in ISW until 56 days and then declined. The ISW100 and OW resulted in similar growth patterns and yielded peak biomass at day 42, proving static biomass for the next 28 days before declining. The biomass of S. linearifolium cultured in ISW and ISW33 significantly (p < .05) decreased and was lower than in ISW100 and died after day 56. The SGR of S. linearifolium in OW, ISW100 and ISW66 levelled off and showed no difference during the first 56 days. The S. linearifolium biomass and SGR negatively and significantly (p < .05) correlated with the concentrations of nitrate, phosphate in all waters. The increased potassium concentration in ISW similar to its concentration in SW brought the growth of S. linearifolium cultured to a level that was similar in OW.
Comparative Biochemistry and Physiology A-molecular & Integrative Physiology, Feb 1, 2007
An 11-day trial was conducted to investigate the osmoregulatory capacity (OC) and regulation of K... more An 11-day trial was conducted to investigate the osmoregulatory capacity (OC) and regulation of K(+), Na(+), Ca(2+) and Mg(2+) of Penaeus monodon juveniles when exposed to K(+) deficient inland saline water (ISW) of four different salinities (5, 15, 25 and 35 ppt). The survival of juveniles showed a positive linear relationship (R(2) ranging from 0.72 to 0.98) with salinity. At the end of the trial, juveniles were able to survive only in 5 ppt of ISW and showed no changes in OC when transferred from ocean water (OW) to ISW. Further, the OC of juveniles in 5 ppt of ISW was significantly different (P&lt;0.05) from the OC of juveniles exposed to 15, 25 and 35 ppt and exhibited strong serum K(+), Na(+), Ca(2+) and Mg(2+) regulation monitored over 16 h. In contrast, at 35 ppt, significant decrease (P&lt;0.05) in serum K(+) and Mg(2+) concentrations and accumulation of serum Na(+) concentration occurred after 16 h of exposure to ISW. At higher salinity, an increase in serum Na(+) concentration leads to an increase in the serum osmolality of the juveniles, which in turn causes decrease in the OC of the juveniles. The results of this study suggest that K(+) deficiency in ISW has a negative effect on survival, OC and the ability of P. monodon juveniles to regulate serum Na(+), K(+), Ca(2+) and Mg(2+) concentrations. These effects are compounded as salinity increases.
Penelitian ini bertujuan untuk melihat pengaruh kombinasi pakan buatan dan ikan rucah terhadap pe... more Penelitian ini bertujuan untuk melihat pengaruh kombinasi pakan buatan dan ikan rucah terhadap perkembangan gonad ikan gabus betina berdasarkan hasil analisis terhadap gonado somatik indeks (GSI), diameter telur, dan tingkat kematangan gonad (TKG) yang dipelihara didalam hapa. Rancangan yang digunakan adalah rancangan acak lengkap dengan 3 perlakuan dan 3 ulangan berdasarkan sampling. Hasil penelitian menunjukkan pemberian kombinasi pakan buatan 50% dan ikan rucah 50% dapat meningkatkan perkembangan gonado somatik indeks, diameter telur, dan dapat meningkatkan tingkat kematangan gonad induk ikan gabus betina
Fotedar/Recent Advances and New Species in Aquaculture, 2011
The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production ... more The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production due to the surge in the development of new technologies and better understanding of the production biology of new aquaculture species. A worldwide interest in the production biology of new candidate species for aquaculture and associated technology is not only deemed to be environmentally friendly, but could also lead to an increase in the productivity of aquaculture. This rise in interest in the subject has led to a gap in the published information, as only a few comprehensive textbooks are available to meet the demand. This chapter highlights the recent developments in biotechnology and the research attempts to extend aquaculture to non traditional farming sites. The use of biotechnology during breeding strategy has been very impressive and has also been applied to deal with widespread disease issues through molecular genetics and through the use of specialised feed additives, which have a potential to enhance the immune competence of the cultured species. Captive breeding is playing an increasingly important role, and has been commercialised while producing high value freshwater ornamentals.
The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production ... more The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production due to the surge in the development of new technologies and better understanding of the production biology of new aquaculture species. A worldwide interest in the production biology of new candidate species for aquaculture and associated technology is not only deemed to be environmentally friendly, but could also lead to an increase in the productivity of aquaculture. This rise in interest in the subject has led to a gap in the published information, as only a few comprehensive textbooks are available to meet the demand. This chapter highlights the recent developments in biotechnology and the research attempts to extend aquaculture to non traditional farming sites. The use of biotechnology during breeding strategy has been very impressive and has also been applied to deal with widespread disease issues through molecular genetics and through the use of specialised feed additives, which have a potential to enhance the immune competence of the cultured species. Captive breeding is playing an increasingly important role, and has been commercialised while producing high value freshwater ornamentals.
Growing aquatic species in inland saline water (ISW) is one way to reduce the adverse impact of I... more Growing aquatic species in inland saline water (ISW) is one way to reduce the adverse impact of ISW to agriculture farms. This 84-day laboratory-trial was conducted to study the growth of Sargassum linearifolium cultured in ocean water (OW), ISW, ISW fortified with potassium equivalent to 100% (ISW100), 66% (ISW66) and 33% (ISW33) of potassium in OW at 35 g/L. The biomass and cumulative specific growth rate (SGR) of S. linearifolium increased significantly (p < .05) with increased potassium in ISW until 56 days and then declined. The ISW100 and OW resulted in similar growth patterns and yielded peak biomass at day 42, proving static biomass for the next 28 days before declining. The biomass of S. linearifolium cultured in ISW and ISW33 significantly (p < .05) decreased and was lower than in ISW100 and died after day 56. The SGR of S. linearifolium in OW, ISW100 and ISW66 levelled off and showed no difference during the first 56 days. The S. linearifolium biomass and SGR negatively and significantly (p < .05) correlated with the concentrations of nitrate, phosphate in all waters. The increased potassium concentration in ISW similar to its concentration in SW brought the growth of S. linearifolium cultured to a level that was similar in OW.
Comparative Biochemistry and Physiology A-molecular & Integrative Physiology, Feb 1, 2007
An 11-day trial was conducted to investigate the osmoregulatory capacity (OC) and regulation of K... more An 11-day trial was conducted to investigate the osmoregulatory capacity (OC) and regulation of K(+), Na(+), Ca(2+) and Mg(2+) of Penaeus monodon juveniles when exposed to K(+) deficient inland saline water (ISW) of four different salinities (5, 15, 25 and 35 ppt). The survival of juveniles showed a positive linear relationship (R(2) ranging from 0.72 to 0.98) with salinity. At the end of the trial, juveniles were able to survive only in 5 ppt of ISW and showed no changes in OC when transferred from ocean water (OW) to ISW. Further, the OC of juveniles in 5 ppt of ISW was significantly different (P&lt;0.05) from the OC of juveniles exposed to 15, 25 and 35 ppt and exhibited strong serum K(+), Na(+), Ca(2+) and Mg(2+) regulation monitored over 16 h. In contrast, at 35 ppt, significant decrease (P&lt;0.05) in serum K(+) and Mg(2+) concentrations and accumulation of serum Na(+) concentration occurred after 16 h of exposure to ISW. At higher salinity, an increase in serum Na(+) concentration leads to an increase in the serum osmolality of the juveniles, which in turn causes decrease in the OC of the juveniles. The results of this study suggest that K(+) deficiency in ISW has a negative effect on survival, OC and the ability of P. monodon juveniles to regulate serum Na(+), K(+), Ca(2+) and Mg(2+) concentrations. These effects are compounded as salinity increases.
Penelitian ini bertujuan untuk melihat pengaruh kombinasi pakan buatan dan ikan rucah terhadap pe... more Penelitian ini bertujuan untuk melihat pengaruh kombinasi pakan buatan dan ikan rucah terhadap perkembangan gonad ikan gabus betina berdasarkan hasil analisis terhadap gonado somatik indeks (GSI), diameter telur, dan tingkat kematangan gonad (TKG) yang dipelihara didalam hapa. Rancangan yang digunakan adalah rancangan acak lengkap dengan 3 perlakuan dan 3 ulangan berdasarkan sampling. Hasil penelitian menunjukkan pemberian kombinasi pakan buatan 50% dan ikan rucah 50% dapat meningkatkan perkembangan gonado somatik indeks, diameter telur, dan dapat meningkatkan tingkat kematangan gonad induk ikan gabus betina
Fotedar/Recent Advances and New Species in Aquaculture, 2011
The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production ... more The fi rst decade of the twenty fi rst century saw a remarkable growth in aquaculture production due to the surge in the development of new technologies and better understanding of the production biology of new aquaculture species. A worldwide interest in the production biology of new candidate species for aquaculture and associated technology is not only deemed to be environmentally friendly, but could also lead to an increase in the productivity of aquaculture. This rise in interest in the subject has led to a gap in the published information, as only a few comprehensive textbooks are available to meet the demand. This chapter highlights the recent developments in biotechnology and the research attempts to extend aquaculture to non traditional farming sites. The use of biotechnology during breeding strategy has been very impressive and has also been applied to deal with widespread disease issues through molecular genetics and through the use of specialised feed additives, which have a potential to enhance the immune competence of the cultured species. Captive breeding is playing an increasingly important role, and has been commercialised while producing high value freshwater ornamentals.
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