Temperate fish community variation over seasons in relation to large-scale geographic seascape variables
2018
In
shallow-water marine environmentsecosystem functioning is a complex interworking of fine-scale characteristics and region-wide factors, and the importance of these variables can vary on multiple temporal and spatial scales. This underwater video study targeted seasonal changes in the fish community of
seagrasshabitats along the Swedish west coast, and the influence of offshore
seascapevariables (latitudinal position, wave exposure, open ocean and deep water). Results showed that fish assemblage structure exhibited seasonal changes between summer and autumn, and strong spatiotemporal variations in the importance of offshore factors affecting shallow-water fish communities. In summer, abundance from the Gobiidae family responded to wave exposure, while the
Gadidaefamily and juvenile migrant habitat preference
guildresponded to latitudinal position and proximity to deep water. In autumn, deep water was related to abundance of
Gadidaeand juvenile migrants while latitudinal position influenced Gastero...
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