Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 3 Issue 4
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- Pages.228-232
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- 1970
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
MORPHOMETRIC ANALYSIS OF PLECOGLOSSUS ALTIVELIS OF CHEJU ISLAND AND THE NAKDONG RIVER
제주도 및 낙동강산 은어군의 형태 측정학적 분석
Abstract
From the standpoint of fishery science it is an interesting matter to note that the size of Plecoglessus altivelis population on Cheju Island is smaller than that of the Nakdong River located in the southern part of Korea's mainland. Therefore the author carried out a comparative analysis to determine whether the populations differ because of racial or because of environmental conditions. The morphometric characters of the head length and the body length were used for the analysis of covariance and computed by a standard regression method of testing for the homogeneity of the populations. All samples were collected during 1968 and 1969 in the Milyang Stream of the Nakdong River and the Cheonji Stream of Cheju Island. The results of the analysis of the populations based on the significance test are as follows: 1. Since the F value observed was only 1.023 (
제주도산 은어의 체형이 왜소한 것이 종족적 형질에 기인하여 별개의 어군에 속하는 가를 규명하기 위하여 낙동강산과 형태 측정확적 견지에서 비교 분석하고 검정하였다. 표본은 1968년부터 1969년에 걸쳐 제주도 천지천(天地川)과 낙동강 지류의 밀양천(密陽川)산 은어를 수시로 채집한 것으로서, 체장과 두장의 측정치를 회귀법에 의한 공분산 분석으로 F-분포의 유의성을 검정하여 다음과 같은 결과를 얻었다. 1) F=1.023(
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