Work

Effects of pre‐experimental fasting and sheltering on the swimming performance and oxygen consumption of juvenile grass carp ( Ctenopharyngodon idella )

Year: 2024

Type: article

Abstract: This study investigated the effects of pre‐experimental fasting for 2, 7, and 14 days under both unsheltered (12 h dark–12 h light) and sheltered conditions on the critical swimming speed (Ucrit) and oxygen consumption (MO2) of juvenile grass carp, using a modified swim respirometer. Key findings include (1) the Ucrit of test fish decreased significantly, by 28%, after fasting for 14 days and sheltering intensified the impact to a 43% decrease, and (2) fish anaerobic capacity decreased after 7 days but increased after 14 days, and was enhanced by sheltering conditions. These findings are important as they indicate that fasting and sheltering can impair grass carp survival and disrupt river ecosystem balance, highlighting the need for habitat conservation.

Source: Journal of Fish Biology

DOI: 10.1111/jfb.16034

Authors: Malik Haris Ali, Ying‐ping Huang, David Johnson, Wei‐ming Li, Xi Yuan

Institutions: China Three Gorges University, Ferrum College

Language: English

Topic: Physiological and biochemical adaptations

Subfield: Ecology

Field: Environmental Science

Domain: Physical Sciences

Open Access status: bronze

Funders: Natural Science Foundation of Hubei Province, Higher Education Discipline Innovation Project, Key Research and Development Program of Zhejiang Province

Awards: G2941315154, G3767076172, G8614860488, G913664223