林鹬秋季迁徙中转停留期间内脏器官及骨骼肌的变化

Changes of Internal Organs and Skeletal Muscle in the Wood Sandpiper(Tringa glareola)during Autumn Migration on a Stopover Site

[目的]评价秋季迁徙林鹬内脏器官及骨骼肌的变化趋势。[方法]选择上海长江河口滨海滩涂区域的林鹬作为样本,分析其秋季在上海中转停歇期间内脏器官及骨骼肌的重量差异,并比较2002～2004年的环志数据,分析其内脏器官及骨骼肌的变化趋势。[结果]林鹬中转停歇期间样本平均体重为(44.337 2±6.191 7)g。增重的最大因素是脂肪,最大可达到平均体重的26%;其次是胸肌部分,变化幅度超过50%;腿肌、剩余骨骼、心、肺、肝、砂囊、肠等器官湿重均有一定幅度的变化,脑、肺、砂囊和肾重量保持稳定。[结论]林鹬中转停歇期间体重明显增加,腿肌、心、肠、肝和骨骼肌其余部分均随体重呈增重趋势,脑、肺、砂囊和肾的重量无变化。

[Objective] To evaluate the change trends of visceral organs and skeletal muscles in wood sandpipers during autumn migration.[Method] Wood sandpiper in Shanghai Yangtze River estuary area was chosen as the sample,the weight differences of its internal organs and skeletal muscles during the transit stop in autumn were analyzed,and then compared with the banding data from 2002 to 2004 to evaluate the changing trends of wood sandpipers’ visceral organs and skeletal muscles.[Result] During the transit stop,the sample average weight of wood sandpipers was（44.337 2±6.191 7 g）,and the biggest factor in weight gain was fat,and the maximum fat proportion can reach 26% of the average weight of wood sandpipers,followed by the pectoral part of the changes by more than 50%.The wet weights of leg muscles,the remaining bones,heart,lungs,liver,gizzard,intestines and other organs all showed a certain level of changes,but its brain,lungs,gizzard,and kidneys weight remained stable.[Conclusion] Wood sandpipers gained significant weight during transit stop.The weight of their leg muscles,heart,intestines,liver and the rest of skeletal muscles gained while their weight of brain,lungs,gizzard,and kidneys did not change.