Effect of periodical water current on the phasing of demand feeding rhythms in sea bass (Dicentrarchus labrax L.)

Valverde, Jesús Cerezo; López, Pilar Mendiola; Ruiz, Jose

doi:10.1016/j.physbeh.2005.04.025

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…At high temperatures (>17 • C), salinity relates in a dome-shaped way to food intake (max at 15 PSU: Dendrinos and Thorpe 1985;Rubio et al 2005) and FCE (max at 25-30 PSU; Dendrinos and Thorpe 1985). Hydrodynamics (Cerezo Valverde et al 2005), windregime and rainfall (Bégout Anras 1995) have also been shown to impact sea bass feeding activity. Turbulence is thought to stimulate the feeding activity of sea bass juveniles (Pickett and Pawson 1994).…”

Section: Diet and Nutritional Physiologymentioning

confidence: 99%

What can exploratory modelling tell us about the ecobiology of European sea bass (Dicentrarchus labrax): a comprehensive overview

López

Pontual

Bertignac

et al. 2015

Aquat. Living Resour.

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European sea bass, Dicentrarchus labrax, is a highly valuable species in Europe, both for aquaculture in the Mediterranean Sea and for commercial and recreational fisheries in the North East Atlantic Ocean. Subjected to increasing fishing pressure, the wild population has recently experienced significant recruitment fluctuation as well as a northward extension of its distribution area in the North Sea. While the nature of the ecological and/or physiological processes involved remains unresolved, ontogenetic habitat shifts and adult site fidelity could increase the species' vulnerability to climate change and overfishing. As managers look for expert information to propose management scenarios leading to sustainable exploitation, exploratory modelling appears to be a cost-efficient approach to enhance the understanding of recruitment dynamics and the spatio-temporal scales over which fish populations function. A conceptual modelling framework and its specific data requirements are discussed to tackle some sound ecological questions regarding this species. We consequently provide an updated review of current knowledge on bass population structure, biology and ecology. This paper will hence be particularly valuable to develop spatially-explicit models of European sea bass dynamics under environmental and anthropogenic forcing. Knowledge gaps requiring further research efforts are also reported.

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Section: Diet and Nutritional Physiologymentioning

confidence: 99%

What can exploratory modelling tell us about the ecobiology of European sea bass (Dicentrarchus labrax): a comprehensive overview

López

Pontual

Bertignac

et al. 2015

Aquat. Living Resour.

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“…Other cues, such as bouts of exercise (Valverde et al 2005) and factors related to gastric evacuation (Houlihan et al 2001), may influence the expression of circadian feeding rhythms. For example, if the time required for gastric evacuation and return of appetite is slightly more than 24 hours, as has been suggested for rainbow trout (Grove et al 1978;Ruohonen et al 1997), Atlantic salmon (Salmo salar) and Atlantic cod (Gadus morhua.…”

Section: Modulatory Effects On Daily Feeding Rhythmsmentioning

confidence: 99%

Appetite and Feed Intake

Jobling

Alanärä

Noble

et al. 2012

Aquaculture and Behavior

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This chapter first describes changes in appetite that occur over different time scales in wild fish and the physiological mechanisms that generate these changes. It then gives an account of how food intake and appetite change as young fish develop and mature and the effects of genetic variation and differential experience on these processes. The costs of sustaining a high rate of food intake are then described, as is the way in which these are balanced against the obvious benefits of gaining a good supply of nutrients. The benefits gained by regular appetite cycles are also considered. The implications of natural appetite patterns for fish culture are then discussed, including problems arising from underfeeding and overfeeding and those resulting from failure to match feed delivery to current appetite. Underfeeding causes slow, uneven growth and high levels of aggression, as well as stress and mortality, while overfeeding may result in inefficient production and adverse environmental impact. Potential solutions to such problems are discussed, including the use of on-demand feeding systems that match delivery to appetite. The effects of domestication and captive rearing on feed intake are then considered, together with possible ways of mitigating such effects in fish that are cultured for release.

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“…In particular, there is limited available information about the behaviour of European sea bass, Dicentrarhus labrax, during on-growing in sea cages. Feeding behaviour has been studied in small tanks (Azzaydi, Madrid, Zamora, S anchez-V azquez & Mart ınez 1998;Paspatis, Maragoudaki & Kentouri 2002;Valverde, Mendiola L opez & De Costa 2005;Di-Poi, Beauchaud, Bouchut, Dutto, Cov es & Attia 2008;Millot & B egout 2009;Millot, B egout & Chatain 2009a;Benha€ ım, P ean, Brisset, Leguay, B egout & Chatain 2011;Benha€ ım, B egout, P ean, Brisset, Leguay & Chatain 2012a) with focus on feeding behaviour and individual variations, changes due to water current and dominance hierarchies in small groups. A few studies looked at feeding with different feeding practices in large cages (Andrew, Noble, Kadri, Jewell & Huntingford 2002;Sar a, Oliveri, Martino & Campobello 2010) presenting information on the swimming activity of the individuals.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of European sea bass,Dicentrarchus labraxL., in cages - impact of early life rearing conditions and management

et al. 2012

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European sea bass, Dicentrarchus labrax L., groups reared under different conditions during larval stages (mesocosm and intensive rearing) were monitored during on-growing in sea cages until marketable size (350-400 g). Four caged groups were followed for a period of 17 months each at a pilot scale farm, where vertical distribution behaviour was monitored. This was performed while fish were under calm conditions, during feeding and when stress events occurred. Also during two specific periods: (i) spawning and (ii) high water temperature. Clear differences in the behavioural pattern of swimming depth, displacement and used space between the groups were observed. The individuals from the mesocosm rearing were more sensitive to human presence, showing stronger reactions (speed of displacement and vertical distribution). Most pronounced differences were observed during the 'extreme' warm period and the reproductive season. Within the seasons, European sea bass responded during feeding and stress showing a tendency to move deeper compared to calm conditions. The increased displacements were longer during feeding and stress.

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Effect of periodical water current on the phasing of demand feeding rhythms in sea bass (Dicentrarchus labrax L.)

Cited by 6 publications

References 22 publications

What can exploratory modelling tell us about the ecobiology of European sea bass (Dicentrarchus labrax): a comprehensive overview

What can exploratory modelling tell us about the ecobiology of European sea bass (Dicentrarchus labrax): a comprehensive overview

Appetite and Feed Intake

Behaviour of European sea bass,Dicentrarchus labraxL., in cages - impact of early life rearing conditions and management

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