Home range and habitat utilization of adult California sheephead, Semicossyphus pulcher (Labridae), in a temperate no-take marine reserve
Home range and habitat utilization of adult California sheephead, Semicossyphus pulcher (Labridae), in a temperate no-take marine reserve
复制标题
温带禁捕海洋保护区中成年加州羊头（Labridae）的活动范围和生境利用
DOI：
10.1007/s00227-005-1573-1
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
J. Caselle
中科院分区：
文献类型：
--
作者：
Darin T. Topping;C. Lowe;J. Caselle
加州的羊头，Semicossyphus pulcherAyres（Labridae），是一种食肉，温带，岩石礁/海带床的物种，是高度寻求在休闲和商业渔业。细尺度声学遥测跟踪被用来确定的家庭范围和栖息地利用的S. pulcher。2001年3月至2002年8月，在卡塔利纳海洋科学中心海洋生物保护区（33°26′N; 118°29′W）内，对16只成年的S.pulcher（26-38 cm SL）进行了外科手术，安装了小型声学发射器，并在多个24小时的时间段内手动跟踪了144 h。地理信息系统被用来计算家域大小（95%内核利用分布）和栖息地利用。对前5条鱼进行了24 h的跟踪，证实了丽鱼是严格的昼行性鱼类，因此对其余11条鱼的跟踪时间为日出前1 h至日落后1 h。家域变化很大，从938到82，070平方米，平均值（±SD）为15，134 ± 26，007平方米。鱼类之间的家域大小的变化是由于在栖息地的形状（海湾与毗连的海岸线）和自然栖息地的边界（深，桑迪广阔）在保护区内的相邻地区的差异。有一个显着的关系，鱼的长度和比例的时间花在不同的栖息地（沙与礁）。S. pulcher被发现在岩石礁区的54%的时间，并在这些地区，白天的比例更大的是花在高浮雕区。基于成年斑节对虾的活动范围相对较小和持久性，禁猎保护区如果包含适当的栖息地，将为其种群提供足够的保护。
The California sheephead,Semicossyphus pulcherAyres (Labridae), is a carnivorous, temperate, rocky-reef/kelp-bed species that is highly sought in recreational and commercial fisheries. Fine-scale acoustic telemetry tracking was used to ascertain the home range and habitat utilization ofS.pulcher. Sixteen adultS.pulcher(26–38 cm SL) were surgically fitted with small acoustic transmitters and manually tracked for up to 144 h during multiple, 24-h periods between March 2001 and August 2002 within the Catalina Marine Science Center Marine Life Reserve (33°26′N; 118°29′W). A geographic information system was used to calculate home range sizes (95% kernel utilization distributions) and habitat use. Tracking of the first five fish over 24 h confirmed thatS.pulcherwere strictly diurnal, so the remaining 11 fish were tracked from 1 h before sunrise to 1 h after sunset. Home ranges varied greatly, from 938 to 82,070 m2, with a mean (±SD) of 15,134±26,007 m2. Variability in home range sizes among fish was attributed to differences in habitat shape (embayment vs. contiguous coastline) and to natural habitat boundaries (deep, sandy expanses) in adjacent areas within the reserve. There was a significant relationship between fish length and proportion of time spent in different habitats (sand vs. reef).S.pulcherwere found within rocky-reef areas 54% of the time, and, within these areas, a greater percentage of daytime was spent in high-relief areas. Based on the relatively small size and persistence of home ranges of adultS.pulcher, no-take reserves, if they contain appropriate habitat, would provide adequate protection for their stocks.