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Título

Activity rhythms in the deep-sea: a chronobiological approach

AutorAguzzi, Jacopo CSIC ORCID ; Company, Joan B. CSIC ORCID ; Costa, Corrado; Menesatti, Paolo; García, José A. CSIC ORCID ; Bahamon, Nixon CSIC ORCID ; Puig, Pere CSIC ORCID ; Sardà, Francisco CSIC ORCID
Palabras claveDeep-sea
Internal tides
Behavioural rhythms
Clock genes
Video-image analysis
Blue monochromatic light
Melatonin
Review
Fecha de publicación1-ene-2011
EditorFrontiers in Bioscience Publications
CitaciónFrontiers in Bioscience 16: 131-150 (2011)
ResumenOcean waters deeper than 200 m cover 70% of the Earth's surface. Light intensity gets progressively weaker with increasing depth and internal tides or inertial currents may be the only remaining zeitgebers regulating biorhythms in deep-sea decapods. Benthopelagic coupling, exemplified by vertically moving shrimps within the water column, may also act as a source of indirect synchronisation to the day-night cycle for species living in permanently dark areas. At the same time, seasonal rhythms in growth and reproduction may be an exogenous response to spring-summer changes in upper layer productivity (via phytoplankton) or, alternatively, may be provoked by the synchronisation mediated by an endogenous controlling mechanism (via melatonin). In our review, we will focus on the behavioural rhythms of crustacean decapods inhabiting depths where the sun light is absent. Potential scenarios for future research on deep-sea decapod behaviour are suggested by new in situ observation technologies. Permanent video observatories are, to date, one of the most important tools for marine chronobiology in terms of species recognition and animals' movement tracking
Descripción20 pages, 6 figures
Versión del editorhttps://doi.org/10.2741/3680
URIhttp://hdl.handle.net/10261/50174
DOI10.2741/3680
ISSN1093-9946
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