Table 5 in Harbor seal use of glacier ice and terrestrial haul-outs in the Kenai Fjords, Alaska

Table 5. Summary of mean percent change, annually, in numbers of harbor seals counted from Johnstone Bay through Northwestern Fjord (JB-NWF) during the molt and of pups and nonpups counted during pupping, as determined from aerial surveys. For comparison, Aialik Bay trends, based on mean estimates adjusted for favorable standard conditions from 2004 to 2011, are included. TrendLocation/Time PeriodGlacierTerrestrialTotalMoltJB-NWF5.40%9.00%6.10%Aialik Bay6.70%PuppingJB-NWF pups5.00%1.50%6.90%Aialik Bay pups8.00%JB-NWF seals without pups7.96%5.10%8.15%表5 本表格总结了2004至2011年间，通过航空调查（aerial surveys）统计得到的约翰斯通湾至西北峡湾（Johnstone Bay through Northwestern Fjord，简称JB-NWF）区域港海豹（Harbor seal）换毛期（molt）种群数量，以及产崽期（pupping）幼崽与非幼崽个体数量的年度平均百分比变化情况。为便于对比分析，本表格同时纳入了基于2004—2011年适宜标准条件下校正后的平均估计值得到的阿亚利克湾（Aialik Bay）种群趋势数据。具体统计内容如下：换毛期种群趋势方面，JB-NWF区域冰川生境种群数量年均变化率为5.40%，陆地生境为9.00%，总体种群年均变化率为6.10%；阿亚利克湾总体种群年均变化率为6.70%。产崽期种群趋势方面，JB-NWF区域幼崽种群冰川生境年均变化率为5.00%，陆地生境为1.50%，总体种群年均变化率为6.90%；阿亚利克湾幼崽种群总体年均变化率为8.00%；JB-NWF区域无幼崽的港海豹种群冰川生境年均变化率为7.96%，陆地生境为5.10%，总体种群年均变化率为8.15%。