English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/89023

Daily activity rhythms in temperate coastal fishes: insights from cabled observatory video monitoring

AutorAguzzi, Jacopo ; Sbragaglia, Valerio ; Santamaría, G. ; Río, Joaquín del; Sardà, Francisco ; Nogueras, Marc; Mànuel, Antoni
Palabras claveDaily activity
Temperate fishes
Coastal areas
Western Mediterranean
Swimming rhythms
Cabled video observatories
Fecha de publicaciónjul-2013
EditorInter Research
CitaciónMarine Ecology Progress Series 486: 223-236 (2013)
ResumenThe rhythmic behavior of marine species generates uncertainties in population and biodiversity assessments if the frequency of sampling is too low and irregular over time. Few attempts have been made to link community changes to the rhythmic behavior of individuals within populations. Cabled video observatories can be used to explore community changes over different temporal windows as a result of the activity rhythms of individuals within populations. In this study, we used, for the first time, a coastal cabled observatory (OBSEA) to video monitor activity rhythms of different fish species within an artificial reef area at a high frequency. During 1 mo, 30 min daily count patterns were continuously measured and compared with the corresponding solar irradiance. A significant (p < 0.05) day-night patterning was observed in the majority of recognized taxa by Chi-Square periodogram analysis. Three types of rhythms were identified in waveform plotting: (1) diurnal (Chromis chromis, Coris julis, Diplodus annularis, D. cervinus, D. sargus, D. vulgaris, Serranus cabrilla, Dentex dentex, Symphodus sp.); (2) nocturnal (Atherina sp. and Scorpaena sp.); and (3) crepuscular (Apogon imberbis, Oblada melanura, and Spicara maena). Diurnal species clustered around maximum averaged irradiance (computed from a cosinor analysis). The results were discussed evaluating whether visual count time series represent a reliable proxy for the swimming activity rhythms of individuals and whether the complex habitat use of coastal fishes would require the use of spatial networks of cameras
Descripción14 pages, 4 figures, 1 table
Versión del editorhttp://dx.doi.org/10.3354/meps10399
Identificadoresdoi: 10.3354/meps10399
issn: 0171-8630
e-issn: 1616-1599
Aparece en las colecciones: (ICM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
m486p223.pdf1,02 MBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.