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