TY - JOUR
T1 - Feeding rhythm and vertical migration of the euphausiid Euphausia pacifica in coastal waters of north-eastern Japan during fall
AU - Nakagawa, Yoshizumi
AU - Endo, Yoshinari
AU - Sugisaki, Hiroya
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - We investigated the feeding rhythm and diel vertical migration of Euphausia pacifica in coastal waters of north-eastern Japan in September 2000. The euphausiids arrived at the surface early in the night and sank just after satiation. Gut pigment contents and stomach fullness were higher in the food-rich surface layer at night than in the food-poor deep layer during the day. Feeding activity of E. pacifica during daytime was low even if food organisms were abundant in the ambient water in the top 50 m. Therefore, the feeding rhythm of E. pacifica is explained by decreased feeding activity during the day rather than by reduced food availability.
AB - We investigated the feeding rhythm and diel vertical migration of Euphausia pacifica in coastal waters of north-eastern Japan in September 2000. The euphausiids arrived at the surface early in the night and sank just after satiation. Gut pigment contents and stomach fullness were higher in the food-rich surface layer at night than in the food-poor deep layer during the day. Feeding activity of E. pacifica during daytime was low even if food organisms were abundant in the ambient water in the top 50 m. Therefore, the feeding rhythm of E. pacifica is explained by decreased feeding activity during the day rather than by reduced food availability.
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U2 - 10.1093/plankt/25.6.633
DO - 10.1093/plankt/25.6.633
M3 - Article
AN - SCOPUS:0038468724
VL - 25
SP - 633
EP - 644
JO - Journal of Plankton Research
JF - Journal of Plankton Research
SN - 0142-7873
IS - 6
ER -