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为深入了解卤虫卵生物学测定值与其品系间的相关性,选择青海尕海、新疆阿其克库勒湖、山西解池、山东埕口盐场、西藏 ( 具体地点不详 )、新疆鲸鱼湖以及西藏拉果错湖共 7 个品系的卤虫卵,进行了干卵、水合卵、脱壳卵卵径及卵亚壳层厚度的测定.统计结果显示卵径及卵的颜色与海拔高度密切相关,高海拔地区卤虫卵径大、颜色深;卤虫卵径的大小与其成体的生殖方式似乎无直接关联;以卤虫卵亚壳层厚度及卤虫卵径为依据的 Q-聚类结果一致,其中西藏、新疆鲸鱼湖、新疆阿其克库勒湖、以及西藏拉果错湖卤虫卵为一组,山西解池、山东埕口盐场、及青海尕海卤虫卵为一组.卤虫卵亚壳层厚度及卤虫卵径与卤虫品系之间均存在相关性. 相似文献
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Richard A. Reyment 《Mathematical Geology》1985,17(6):591-609
Analysis of size and shape has always figured largely in interpretations of multivariate analyses of measurements on organisms, although on premises that are not always unchallengeable. A recent surge of interest has led to important advances in formal analysis of variations in shape (geometric morphometrics) and phylogenetic significance of such changes. In connection herewith, an improved philosophy for the choice of variables suitable for depicting shape variation is evolving. Important results for statistical validity of multivariate analyses now are being made available by several workers (robust estimates of canonical vectors, etc., stability of eigenvectorial elements, effects of deviations from multivariate normality) with special reference to applications in morphometric studies. Such questions have been little considered in the past with the result that many multivariate analyses of biological and geological data are inexact.Contribution Number 2 in a series of review articles by the Mathematical Geologists of United States. Accepted January 8, 1985. Invited lecture delivered to the thematic conference of Geological Shape Analysis, Wood's Hole, Massachusetts, September 8–12, 1984. 相似文献
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Tang Senming 《海洋学报(英文版)》1998,17(4):537-544
ThisresearchwasfundedbyNaturalScienceFoundationofFujianProvince.INTRODUCTloNBrineshrimpsaredistrbutedwidelyintheworld.Morethan35ohabitatshavebeenidenti-fiedsofar(VanhaeckeandSorgeloos,198O).Longadaptationtothenarrowbiotopscharacter-izedbyhighsalinityofsaltlakes,lagoonsandsaltfarms,thestrainhasdevelopedinherentcharac-terssuchascystsize,growthrateandtoleranttothehightemperature,etc.Thereforethecystbiometricshasoftenbeenusedinthespeciesidentification,asitisalsoeasyfordatagatheringwhencarr… 相似文献
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