One hundred and eighty-one boat surveys were conducted within 150 days between February and December, 2004 in Xiamen waters, which covered an area about 700 km2. A total of 102 separate sightings were recorded. Habita...One hundred and eighty-one boat surveys were conducted within 150 days between February and December, 2004 in Xiamen waters, which covered an area about 700 km2. A total of 102 separate sightings were recorded. Habitat selection (i.e., water depth, tidal conditions, and distance offshore) were analyzed by using selection frequency and x2-test. The results showed high level of selection for water depth under 20 meters and distance offshore within 1 000 meters, whereas no significant selection was found for tide level, water temperature or tide direction. In addition, for the purpose of providing fundamental information for conservation and management, the utilization of different sections of Xiamen waters was discussed. Furthermore, Xiamen west harbour and waters from Jiyu to Wuyu were identified as the ‘key habitats’ and Dadeng waters may serve as a ‘sanctuary’ for the Xiamen population.展开更多
Samples of liver,pancreas,stomach,kidney,intestine,lung,muscle,heart,skin,and brain from two stranded Indo-Pacific humpback dolphins(Sousa chinensis)near Xiamen harbor of China in April 2004 were analyzed for iron(Fe)...Samples of liver,pancreas,stomach,kidney,intestine,lung,muscle,heart,skin,and brain from two stranded Indo-Pacific humpback dolphins(Sousa chinensis)near Xiamen harbor of China in April 2004 were analyzed for iron(Fe)concentration.The highest levels of Fe were found in the blood(2 471.0 μg/g,dry weight)and liver(2 968.2 μg/g,dry weight)of the animal XM20040429(female,body weight 86 kg,body length1.88 m,estimated age 2-3 year-old)and XM20040430(female,204 kg,2.45 m,4-5 year-old),respectively.In general,Fe concentrations were higher in blood,liver,lung,kidney and muscle than any other organs or tissues in both individuals,although there were obvious differences in body length,body weight and age between these two dolphins.This tissular distribution pattern of Fe concentration of Indo-Pacific humpback dolphins in the present study is similar to those of Dall’s porpoises(Phocoenoides dalli),finless porpoises(Neophocaena phocaenoides)and striped dolphins(Stenella coeruleoalba)in the previous literatures.展开更多
文摘One hundred and eighty-one boat surveys were conducted within 150 days between February and December, 2004 in Xiamen waters, which covered an area about 700 km2. A total of 102 separate sightings were recorded. Habitat selection (i.e., water depth, tidal conditions, and distance offshore) were analyzed by using selection frequency and x2-test. The results showed high level of selection for water depth under 20 meters and distance offshore within 1 000 meters, whereas no significant selection was found for tide level, water temperature or tide direction. In addition, for the purpose of providing fundamental information for conservation and management, the utilization of different sections of Xiamen waters was discussed. Furthermore, Xiamen west harbour and waters from Jiyu to Wuyu were identified as the ‘key habitats’ and Dadeng waters may serve as a ‘sanctuary’ for the Xiamen population.
文摘Samples of liver,pancreas,stomach,kidney,intestine,lung,muscle,heart,skin,and brain from two stranded Indo-Pacific humpback dolphins(Sousa chinensis)near Xiamen harbor of China in April 2004 were analyzed for iron(Fe)concentration.The highest levels of Fe were found in the blood(2 471.0 μg/g,dry weight)and liver(2 968.2 μg/g,dry weight)of the animal XM20040429(female,body weight 86 kg,body length1.88 m,estimated age 2-3 year-old)and XM20040430(female,204 kg,2.45 m,4-5 year-old),respectively.In general,Fe concentrations were higher in blood,liver,lung,kidney and muscle than any other organs or tissues in both individuals,although there were obvious differences in body length,body weight and age between these two dolphins.This tissular distribution pattern of Fe concentration of Indo-Pacific humpback dolphins in the present study is similar to those of Dall’s porpoises(Phocoenoides dalli),finless porpoises(Neophocaena phocaenoides)and striped dolphins(Stenella coeruleoalba)in the previous literatures.
基金Scientific Research Foundation of Third Institute of Oceanography,Ministry of Natural Resources of China(HE01-190505(7))the China-ASEAN Maritime Cooperation Fund(HX180701 and T190701)Natural Science Foundation of Fujian Province of China(2016J05078)
