Patterns and drivers of vertical movements of the large fishes of the epipelagic

Samantha Andrzejaczek, Adrian C. Gleiss, Charitha B. Pattiaratchi, Mark G. Meekan

Research output: Contribution to journalReview article

9 Citations (Scopus)


Large epipelagic fishes (> 30 kg maximum size) are known to display a variety of patterns of vertical movement. Although advances in the affordability and sophistication of electronic tags now allows researchers to routinely document these patterns, there is no standardised approach to classify these behaviours and investigate their physical and biological drivers. This paper reviews the existing knowledge of the vertical movements of large, epipelagic fishes and the evidence for the underlying factors that structure this behaviour. The review focuses on behaviours occurring at a range of temporal scales, from seconds to years. We propose that patterns of vertical movement in gill-breathing animals of the epipelagic are best characterised by the need to move continuously in a three-dimensional environment while optimising food encounter and energy expenditure, avoiding predators, searching for mates and remaining within the limits imposed by the physical environment on their physiology (notably water temperature and oxygen). Modern biologging technologies that record both the internal (body temperature, heart rate) and external physical environment coupled with direct recording of behaviour from tri-axial sensors and animal-borne cameras offer a new approach to the analysis of drivers of vertical movement. Ultimately, this can provide insights into the evolution of the behaviour and morphology of these animals.

Original languageEnglish
Pages (from-to)335-354
Number of pages20
JournalReviews in Fish Biology and Fisheries
Issue number2
Publication statusPublished - 1 Jun 2019

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