THE COMPOUND EYE AS AN INDICATOR OF AGE AND SHRINKAGE IN ANTARCTIC KRILL
文献类型：期刊论文
| 作者 | SUN, S ; DELAMARE, W; NICOL, S
|
| 刊名 | ANTARCTIC SCIENCE
 |
| 出版日期 | 1995 |
| 卷号 | 7期号:4页码:387-392 |
| 关键词 | Euphausia-superba Dana Thysanoessa-inermis Kroyer Meganyctiphanes-norvegica Body Shrinkage Growth Bay Maturation Population Longevity Raschi |
| ISSN号 | 0954-1020 |
| 英文摘要 | Laboratory studies have shown that Antarctic krill (Euphausia superba) shrink if maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba individuals may be shrinking in the field during winter. If krill shrink during the winter, conclusions reached by length-frequency analysis may be unreliable because smaller animals may not necessarily be younger animals. In this study, the correlation between the body-length and the crystalline cone number of the compound eye was examined. Samples collected in the late summer show an apparent linear relationship between crystalline cone number and body-length. From a laboratory population, it appears that when krill shrink the crystalline cone number remains relatively unchanged. If crystalline cone number is little affected by shrinking, then the crystalline cone number may be a more reliable indicator of age than body-length alone. The ratio of crystalline cone number to body-length offers a method for detecting the effect of shrinking in natural populations of krill. On the basis of the crystalline cone number count, it appears from a field collection in early spring that E. superba do shrink during winter. |
| 学科主题 | Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2877]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 推荐引用方式 GB/T 7714 | SUN, S,DELAMARE, W,NICOL, S. THE COMPOUND EYE AS AN INDICATOR OF AGE AND SHRINKAGE IN ANTARCTIC KRILL[J]. ANTARCTIC SCIENCE,1995,7(4):387-392. |
| APA | SUN, S,DELAMARE, W,&NICOL, S.(1995).THE COMPOUND EYE AS AN INDICATOR OF AGE AND SHRINKAGE IN ANTARCTIC KRILL.ANTARCTIC SCIENCE,7(4),387-392. |
| MLA | SUN, S,et al."THE COMPOUND EYE AS AN INDICATOR OF AGE AND SHRINKAGE IN ANTARCTIC KRILL".ANTARCTIC SCIENCE 7.4(1995):387-392. |
入库方式： OAI收割
来源：海洋研究所
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