Colorimetry of the hepatopancreas in Antarctic krill,Euphausia superba |
| |
| Authors: | Y Endo N Kadoya |
| |
| Institution: | (1) Far Seas Fisheries Research Laboratory, 5-7-1, Orido, 424 Shimizu, Japan;(2) Tokai University, 3-20-1, Orido, 424 Shimizu, Japan;(3) Present address: Laboratory of Oceanography, Faculty of Agriculture, Tohoku University, 981 Sendai, Japan;(4) Present address: Sanyo Hydrographic Survey Co., Ltd, 1-3-17, Horidome-cho, Nihonbashi, Chuoh-ku, 103 Tokyo, Japan |
| |
| Abstract: | Summary Hepatopancreas color of freshly caught as well as starved Euphausia superba was examined by a chroma meter to express it quantitatively and compare it with plant pigment contents. There was a high positive correlation (r= 0.77) between plant pigment contents of hepatopancreas and the purity (vividness) of hepatopancreas color, and a negative correlation between the pigment contents and the luminosity (brightness) of the color. During the starvation experiment the purity decreased from 0.480 to 0.198 during the first 6 days in accordance with the decrease in plant pigment contents from 4.7 to 0.9  g krill–1. An examination of hepatopancreas color by a chroma meter proved an easy and quantitative way of knowing the feeding condition of E. superba. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
