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Abundance and survival rates of green turtles in an urban environment: coexistence of humans and an endangered species

机译：城市环境中绿海龟的丰度和成活率：人类与濒危物种的共存

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摘要

Longitudinal capture-mark-recapture data were used to estimate abundance and survival rates for green turtles (Chelonia mydas) in San Diego Bay, California, USA. These turtles were closely associated with warm effluent from a power plant during winter months. The life stage distribution of green turtles in the bay ranged from post-pelagic juveniles to adults (44.0-110.4 cm straight carapace length). During 99 capture sessions between December 2, 1990, and March 25, 2009, 96 individual green turtles were caught. To estimate abundance and survival rates, robust-design mark-recapture models were fitted to capture-recapture histories using software MARK. The estimated annual survival rate was 0.861 (SE = 0.147, 95% CI = 0.356-0.986), whereas annual abundance ranged from 16 (SE = 6.3, 95% CI = 4-29) to 61 (SE = 13.2, 95% CI = 36-88). This study provides the first survival rate and abundance estimates for a green turtle foraging population in the highly industrialized San Diego Bay.
机译：纵向捕获标记捕获数据用于估计美国加利福尼亚州圣地亚哥湾的绿海龟（Chelonia mydas）的丰度和成活率。这些乌龟在冬季与发电厂的温水密切相关。海湾中绿海龟的生活阶段分布范围从浮游后的幼体到成年（直甲壳长44.0-110.4 cm）。在1990年12月2日至2009年3月25日的99次捕获期间，共捕获了96只绿海龟。为了估算丰度和生存率，使用软件MARK将健壮设计的标记捕获模型拟合到捕获历史记录中。估计的年生存率为0.861（SE = 0.147，95％CI = 0.356-0.986），而年丰度范围从16（SE = 6.3，95％CI = 4-29）到61（SE = 13.2，95％CI） = 36-88）。这项研究为高度工业化的圣地亚哥湾的绿海龟觅食种群提供了首次成活率和丰度估计。

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  • 来源
    《Marine biology》 |2010年第8期|P.1869-1877|共9页
  • 作者

    Tomoharu Eguchi; Jeffrey A. Seminoff; Robin A. LeRoux; Peter H. Dutton; Donna L. Dutton;

  • 作者单位

    National Marine Fisheries Service, Southwest Fisheries Science Center, 3333 N. Torrey Pines Ct., La Jolla, CA 92037, USA;

    rnNational Marine Fisheries Service, Southwest Fisheries Science Center, 3333 N. Torrey Pines Ct., La Jolla, CA 92037, USA;

    rnNational Marine Fisheries Service, Southwest Fisheries Science Center, 3333 N. Torrey Pines Ct., La Jolla, CA 92037, USA;

    rnNational Marine Fisheries Service, Southwest Fisheries Science Center, 3333 N. Torrey Pines Ct., La Jolla, CA 92037, USA;

    Ocean Planet Research Inc., 12368 Rue Fountainebleau, San Diego, CA 92131, USA;

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