BEHAVIOR AND RESPONSE OF JAPANESE CATFISH (Silurus asotus) IN CAPTIVITY PROVIDED WITH AN ARTIFICIAL MICROHABITAT MOSAIC
Abstract
Rearing of Japanese catfish (Silurus asotus) requires special considerations for designing of facilities and management. Information on its biology in natural environment provides ideas for developing suitable culture systems. For this species, underwater artificial microhabitat structures are needed to perform its normal behavior. The fish shows distinct preferences for some designs based on visual cues and its decision to make use of these structures is guided by other cues probably related to light and water flow. Microhabitat structures can make a real difference to managing stress of captivity in this species. Absence of a suitable structure causes ‘habitat bottleneck’ that develops aggressive behavior. However, the intraspecific antagonistic behavior gives way to social tolerance among conspecifics. Microhabitat metrics is important in addition to physical attributes of the structure so as to allow social grouping in the fish under favorable conditions.
Keywords
References
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Details
Primary Language
English
Subjects
Hydrobiology
Journal Section
Short Communication
Authors
Nur Efah Arsın
0000-0003-0374-629X
Malaysia
Abentin Estım
0000-0002-5775-1644
Malaysia
Saleem Mustafa
*
0000-0003-0533-4029
Malaysia
Publication Date
April 13, 2018
Submission Date
April 5, 2018
Acceptance Date
April 11, 2018
Published in Issue
Year 2018 Volume: 1 Number: 3