Behavioral characteristics of a chondrostean sturgeon species Acipenser baerii prelarvae in response to different environmental light intensities in a diel photoperiodic cycle

Abstract

Sturgeons belonging to Acipenseriformes represent the ancient lineage of actinopterygian fishes (ray-finned fishes), often referred to 'living fossils' (Birstein et al., 1997; Web and Doroshov, 2011). Due to their primitive phylogenetic position, sturgeons have been considered as useful models for various evolutionary researches (Kim et al., 2005; Cho et al., 2007; Kim et al., 2019a). In addition, sturgeons, as the source of caviar, have been valuable Behavioral characteristics of a chondrostean sturgeon species Acipenser baerii prelarvae in response to different environmental light intensities in a diel photoperiodic cycle

Superoxide Dismutase Multigene Family from a Primitive Chondrostean Sturgeon, Acipenser baerii: Molecular Characterization, Evolution, and Antioxidant Defense during Development and Pathogen Infection

“…Under the present nursery conditions, the A. baerii prelarvae showed behavioral transitions regarding swimming activity, water column preference, rheotaxis, and schooling that were in overall agreement with previously determined patterns. The behavioral transition patterns typically observed in this sturgeon species are addressed in our previous work [ 66 ]. During the prelarval period, the mRNA expression of three AbSOD isoforms was vigorously modulated, with isoform-dependent temporal patterns ( Figure 6 ).…”

“…Representative images for behavioral transition patterns during the prelarval period are also provided in ( e ). Morphological differentiations of A. baerii during the prelarval period refer to those from our previous work [ 39 ], while detailed information on behavioral changes in prelarvae is available in our previous work [ 66 ]. In ( e ), images for 3´ and 4´ dph indicate those obtained 6 h after 3 and 4 dph, respectively.…”