...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Open Fish Science Journal >Building a Better June Sucker: Characterization of Mouth Shape in the Captive Brood Stock
【24h】

Building a Better June Sucker: Characterization of Mouth Shape in the Captive Brood Stock

机译：建立一个更好的六月吮吸者：圈养亲鱼的嘴形特征

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

June sucker, Chasmistes liorus, is an endangered lake sucker endemic to Utah Lake, Utah, USA. Over the last two decades, captive-raised June suckers have been stocked into Utah Lake to augment the wild population. However, it has become apparent that the fish stocked from captive stock may not always represent the typical June sucker morphology. To determine the utility of current captive brood lots to produce June sucker phenotypes, we characterized shape of the lip lobes on the lower jaw of each brood lot. We obtained offspring from within-lot crosses and characterized shape of the lower lips using geometric morphometrics. We compared shape of brood lots to reference samples of June sucker and reference samples of the co-occurring sister species, Utah sucker (Catostomus ardens). Mean shape of the lower lips among brood lots varies from typical June sucker morphology to shapes typical of Utah sucker. Three brood lots had mean shape scores somewhat similar to the reference June sucker mean, and five brood lots had mean shape scores more similar to the reference Utah sucker mean. All other brood lots were intermediate representing hybrid phenotypes. Utilization of all brood lots on a roughly equal basis for augmentation in Utah Lake will likely result in the loss of typical June sucker morphology in the lake within a few decades. We recommend use of brood lots that exhibit June sucker morphology and discontinuance of use of brood lots that represent Utah sucker morphology. In addition, selection on lower lip shape in captive brood lots may be required to recreate June sucker phenotypes from captive brood stock.
机译：六月抽油器Chasmistes liorus是美国犹他州犹他州湖特有的濒危湖泊抽油器。在过去的二十年中，人工饲养的六月抽油烟被放到犹他湖中以增加野生种群。但是，很明显，从圈养种群中放养的鱼可能并不总是代表典型的6月吮吸者形态。为了确定当前圈养育雏批次产生六月吸盘表型的效用，我们对每个育雏批次下颌上的唇裂的形状进行了表征。我们从种间杂交获得后代，并使用几何形态计量学对下唇的形状进行了表征。我们将育雏批次的形状与6月吮吸者的参考样本和共同出现的姊妹物种犹他吮吸者（Catostomus ardens）的参考样本进行了比较。育雏批次中下唇的平均形状从典型的六月抽油器形态到犹他州抽油器的典型形状不等。三个育雏批次的平均形状得分与参考六月的吮吸者平均值相似，而五个育雏批次的平均形状得分与参考犹他州吮吸者平均值相似。所有其他的育雏批次都是中间的，代表杂种表型。在大约相等的基础上利用犹他湖中所有种群的繁殖物，可能会在几十年内导致湖中典型的六月抽油器形态消失。我们建议使用表现出六月抽油杆形态的育雏场，并建议停止使用代表犹他州抽油杆形态的育雏场。此外，可能需要选择圈养育雏批次中的下唇形状，以从圈养育雏种群中重建六月抽油表型。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号