Back to Search Start Over

A novel fish behavior: "Floating" of Paramisgurnus dabryanus loaches.

A novel fish behavior: "Floating" of Paramisgurnus dabryanus loaches.

Authors :
Zhang, Ning
Luo, Wei
Chen, Pengyu
Zhang, Shoudong
Zhang, Yibo
Chen, Defang
Huang, Xiaoli
Jiang, Jun
Wang, Yan
Yang, Shiyong
Yang, Song
Zhao, Liulan
Guo, Zhonggang
Huang, Jie
Long, Yuejin
Du, Zongjun
Source :
Applied Animal Behaviour Science. Jan2022, Vol. 246, pN.PAG-N.PAG. 1p.
Publication Year :
2022

Abstract

Unusual behavior has been noted in Paramisgurnus dabryanus loaches , which have been seen to float on the water, both on aquafarms and laboratories. Animal behavior usually reflects adaptation to the environment, but this "floating" behavior undoubtedly increases the risk of being predated. In order to understand the ecological significance, we first studied the basic characteristics of this behavior. The floating loaches showed five typical characteristics: (1) They floated more at night than during the day, (2) They mainly floated for a short time (< 30 s), (3) The gill respiration frequency decreased significantly (P < 0.05), (4) The proportion of floating fish gradually increased with water temperature (P < 0.05), (5) Juvenile P.dabryanus floated for the first time approximately 14 dph, which coincided with the period when the intestine tract penetrated through and they began to breathe with it. • An unusual behavior – "floating" has been noted in Paramisgurnus dabryanus. • "Floating" may be a special sleep behavior of Paramisgurnus dabryanus.. • "Floating" may be related to the intestinal respiratory function of Paramisgurnus dabryanus. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01681591
Volume :
246
Database :
Academic Search Index
Journal :
Applied Animal Behaviour Science
Publication Type :
Academic Journal
Accession number :
154592649
Full Text :
https://doi.org/10.1016/j.applanim.2021.105510