Strand-ed turtles need fluid parenterally. The jugular access is best for the maintenance and patency of the catheter. The Seldinger technique guided by ultrasound seems to be the safest for catheter insertion. Five j...Strand-ed turtles need fluid parenterally. The jugular access is best for the maintenance and patency of the catheter. The Seldinger technique guided by ultrasound seems to be the safest for catheter insertion. Five juveniles Chelonia mydas with fibropapillomatosis and an adult male leatherback turtle （Dermochelys coriacea） with altered buoyancy were sent to Santos Municipal Aquarium for rehabilitation. Turtles underwent catheterization of the jugular vein using the Seldinger technique with central venous polyurethane catheter monolumen 14 G to Dermochelys and 18 G for Chelonia, guided by ultrasound with 10 MHz transducer catheters were sutured to the skin and animals were subjected to fluid. In all turtles, the catheters were patency and were well established. There were no granulomatous reactions or related infections. The Dermochelys improved clinically after fluid resuscitation, and the catheter was removed one week after. In one Chelonia excision was 21% of its weight in tumors, and the animals received colloid catheter by enabling the mitigation of bleeding due to removal. The use of ultrasonography has enabled monitoring of all access as the patency of the catheter and fluid diffusivity.展开更多
Five species of foraging and breeding sea turtles have been identified in Vietnam, they are Green turtle （Chelonia mydas）, Loggerhead turtle （Caretta caretta）, Olive ridley turtle （Lepidochelys olivacea）, Hawksb...Five species of foraging and breeding sea turtles have been identified in Vietnam, they are Green turtle （Chelonia mydas）, Loggerhead turtle （Caretta caretta）, Olive ridley turtle （Lepidochelys olivacea）, Hawksbill turtle （Eretmochelys imbricata） and Leatherback turtle （Dermochelys coriacea）. Among them, with the exception of Loggerhead turtle （Caretta caretta）, four species have been being lay eggs on the beaches along the country. However, these populations have been strongly suffered by human activities for decades. The number of foraging and breeding Hawksbill and Leatherback sea turtles has dramatically decreased, and Olive Ridley turtle has almost disappeared on their traditional nesting beaches. Beside the reason of harvesting eggs and nesting turtles by catch or by purpose, the developments in coastal areas where sea turtles laying eggs such as in shrimp aquaculture, tourist resort and residential area developments etc., also contributed to this decline of sea turtles. Despite the fact that the recent raising awareness programs on protection and conservation of the sea turtle were very well done with the participation of many organizations and provinces, this important animals still face the risk of extinction in Vietnam.展开更多
Cultural practices, hand collection of larvae, light traps and entomopathogenic fungi were investigated to manage of palm borers Oryctes spp. in date palm orchards during the years 2010-2015. Cultural practices, such ...Cultural practices, hand collection of larvae, light traps and entomopathogenic fungi were investigated to manage of palm borers Oryctes spp. in date palm orchards during the years 2010-2015. Cultural practices, such as sanitation and pruning frond bases, hand collection of larvae during regular annual service work and light traps with solar energy were practiced annually in one orchard for five years. In the second orchard, cultural practices were applied for two years, light trap for one year only, and no hand collection of larvae was done during the period. The third orchard was used as a control treatment. Results showed reduction in population density of larvae （91.6% and 53.0%） and adult （76.1% and 41.1%） ofOryects spp. in the 1st and 2nd orchard, respectively The results also demonstrated the impact of moon light phases on the number of Oryctes spp. adults caught by light trap and the existence of an inverse relation between moon light and flight activity of adults. Biological experiments also revealed that entomopathogenic fungi can cause high mortality rate reaching 100% after 29 d. Beauveria bassiana scored higher mortality rate in short time, especially at concentration of 1 × 10^11 conidia/mL with LT50 = 12.75 and LT90 = 20; while, Metarhizium anisopliae caused the higher percentage of malformed adults. The results depicted the effectiveness of some integrated ecological sound control methods for monitoring and population suppression of Oryects spp. in date palm orchards.展开更多
[Objective] The aim was to explore the relationship between water body Chlorophyll-a and water quality factors of wetlands Baiguishan reservoir.[Method] Chlorophyll-a and water quality factors of water quality of Wetl...[Objective] The aim was to explore the relationship between water body Chlorophyll-a and water quality factors of wetlands Baiguishan reservoir.[Method] Chlorophyll-a and water quality factors of water quality of Wetlands BaiGuishan Reservoir was studied,the analysis of the relationship on water quality of Wetlands Baiguishan Reservoir was made by use of trophic status indices and SPSS17.0 statistical analysis.[Result] Total phosphorus was an important factor of influence Chlorophyll-a in reservoir,water body had slight eutrophication phenomenon in reservoir of July to October in 2010.[Conclusion] Comprehensive management should be strengthened so as to improve the water quality of Baiguishan wetland.展开更多
文摘Strand-ed turtles need fluid parenterally. The jugular access is best for the maintenance and patency of the catheter. The Seldinger technique guided by ultrasound seems to be the safest for catheter insertion. Five juveniles Chelonia mydas with fibropapillomatosis and an adult male leatherback turtle （Dermochelys coriacea） with altered buoyancy were sent to Santos Municipal Aquarium for rehabilitation. Turtles underwent catheterization of the jugular vein using the Seldinger technique with central venous polyurethane catheter monolumen 14 G to Dermochelys and 18 G for Chelonia, guided by ultrasound with 10 MHz transducer catheters were sutured to the skin and animals were subjected to fluid. In all turtles, the catheters were patency and were well established. There were no granulomatous reactions or related infections. The Dermochelys improved clinically after fluid resuscitation, and the catheter was removed one week after. In one Chelonia excision was 21% of its weight in tumors, and the animals received colloid catheter by enabling the mitigation of bleeding due to removal. The use of ultrasonography has enabled monitoring of all access as the patency of the catheter and fluid diffusivity.
文摘Five species of foraging and breeding sea turtles have been identified in Vietnam, they are Green turtle （Chelonia mydas）, Loggerhead turtle （Caretta caretta）, Olive ridley turtle （Lepidochelys olivacea）, Hawksbill turtle （Eretmochelys imbricata） and Leatherback turtle （Dermochelys coriacea）. Among them, with the exception of Loggerhead turtle （Caretta caretta）, four species have been being lay eggs on the beaches along the country. However, these populations have been strongly suffered by human activities for decades. The number of foraging and breeding Hawksbill and Leatherback sea turtles has dramatically decreased, and Olive Ridley turtle has almost disappeared on their traditional nesting beaches. Beside the reason of harvesting eggs and nesting turtles by catch or by purpose, the developments in coastal areas where sea turtles laying eggs such as in shrimp aquaculture, tourist resort and residential area developments etc., also contributed to this decline of sea turtles. Despite the fact that the recent raising awareness programs on protection and conservation of the sea turtle were very well done with the participation of many organizations and provinces, this important animals still face the risk of extinction in Vietnam.
文摘Cultural practices, hand collection of larvae, light traps and entomopathogenic fungi were investigated to manage of palm borers Oryctes spp. in date palm orchards during the years 2010-2015. Cultural practices, such as sanitation and pruning frond bases, hand collection of larvae during regular annual service work and light traps with solar energy were practiced annually in one orchard for five years. In the second orchard, cultural practices were applied for two years, light trap for one year only, and no hand collection of larvae was done during the period. The third orchard was used as a control treatment. Results showed reduction in population density of larvae （91.6% and 53.0%） and adult （76.1% and 41.1%） ofOryects spp. in the 1st and 2nd orchard, respectively The results also demonstrated the impact of moon light phases on the number of Oryctes spp. adults caught by light trap and the existence of an inverse relation between moon light and flight activity of adults. Biological experiments also revealed that entomopathogenic fungi can cause high mortality rate reaching 100% after 29 d. Beauveria bassiana scored higher mortality rate in short time, especially at concentration of 1 × 10^11 conidia/mL with LT50 = 12.75 and LT90 = 20; while, Metarhizium anisopliae caused the higher percentage of malformed adults. The results depicted the effectiveness of some integrated ecological sound control methods for monitoring and population suppression of Oryects spp. in date palm orchards.
基金Supported by Natural Science Study Fund from the Department of Education of Henan(2010B610002)
文摘[Objective] The aim was to explore the relationship between water body Chlorophyll-a and water quality factors of wetlands Baiguishan reservoir.[Method] Chlorophyll-a and water quality factors of water quality of Wetlands BaiGuishan Reservoir was studied,the analysis of the relationship on water quality of Wetlands Baiguishan Reservoir was made by use of trophic status indices and SPSS17.0 statistical analysis.[Result] Total phosphorus was an important factor of influence Chlorophyll-a in reservoir,water body had slight eutrophication phenomenon in reservoir of July to October in 2010.[Conclusion] Comprehensive management should be strengthened so as to improve the water quality of Baiguishan wetland.
