Open Access
Feeding behaviour of Barbus Bocagei assessed under a spatio-temporal approach
Maria João Collares-Pereira,M.J. Martins,A. M. Pires,Ana Maria Geraldes,Maria M. Coelho +4 more
- 01 Jan 1996
TL;DR: The feeding bchaviour of Barbus bocagei was asscssed in a lowl:md syslcm by a 1 wo ye:lrs su rvcy Df 1wo contrasting sites, and gut conlents occurred by sampJi ng period and sitc.
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Abstract: The feeding bchaviour of Barbus bocagei was asscssed in a lowl:md syslcm by a 1 wo ye:lrs su rvcy Df 1wo contrasting sites. al so tald ng inlo aCCou llt , for lhe firsl time . d iurnal chan!!cs 0 1' fi sh diel and bcnthos ava ilabillly. This barbeI recds more Dr Icss conlinuoll sly during lhe 24 flOurs upon lhe do· minilnt and lhe most availablc bcnlhic itCI1lS, such as Diplera larvac (Chironom iLl ae) , Ephcmcroptern nymphs (Cacnidac). mail uses and plant m:ncrial. switchi ng 10 one or Fcw itcms whcn Ihey beco me common. Such a gencral isl anel oppOrlUni Slic bchaviour was also dcmonsLralccI over lime by scoring lhe benlhos availnbil ity during lhe seconel year ofthis projccl. ln facl, a hi ~h spatio-lcmporaJ homogcneiLy 01' prey was gcncrally rounel, whercas significant el ifTcrences in LIlI.! gut conlents occurred by sampJi ng period and sitc. This Jack 01' correlation ma)' he expJ<lincd by lhe existence 01' itH raspecific vari;:tlion in lhe Fccding pallern. cou pled \V ith lhe existence 01' rccdi ng: migrmions lcading 10 ex ploilalion 01' di slincl zonC$ from those prospec ted.
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Citations
Fulfilling spawning flow requirements for potamodromous cyprinids in a restored river segment.
TL;DR: The habitat model used in this study was able to accurately predict the occurrence of spawning grounds, representing a valuable decision-making support tool for river managers.
38
Structural microhabitat use by endemic cyprinids in a Mediterranean‐type river: Implications for restoration practices
TL;DR: In this paper, the seasonal and size-related microhabitat use of three endemic cyprinids (Iberian barbel, Luciobarbus bocagei; Iberian straight-mouth nase, Pseudochondrostoma polylepis; and calandino, Squalius alburnoides) using a modified point electrofishing procedure in a Mediterranean river was assessed.
34
Fishway with two entrance branches: Understanding its performance for potamodromous Mediterranean barbels
F.J. Bravo-Cordoba,Francisco Javier Sanz-Ronda,Jorge Ruiz-Legazpi,L. Fernandes Celestino,Sergio Makrakis +4 more
TL;DR: In this paper, the performance of a modified type of pool and weir fishway with two access branches, using passive integrated transponder telemetry, was analyzed using a circum-Mediterranean barbel, Luciobarbus bocagei (Steindachner, 1864).
31
Fish under pressure: Examining behavioural responses of Iberian barbel under simulated hydropeaking with instream structures.
Maria João Costa,Juan Francisco Fuentes-Pérez,Isabel Boavida,Jeffrey A. Tuhtan,António N. Pinheiro +4 more
TL;DR: Considering the non-uniform nature of hydropeaking events, and the observation that the fish responded differently to specific flow event-structure combinations, a diverse set of instream structures should be considered for habitat-based hydropeaked mitigation measures for Iberian barbel.
Passage Performance of Technical Pool-Type Fishways for Potamodromous Cyprinids: Novel Experiences in Semiarid Environments
Francisco Javier Sanz-Ronda,Francisco Javier Bravo-Córdoba,Ana Sánchez-Pérez,Ana García-Vega,Jorge Valbuena-Castro,Leandro Fernandes-Celestino,Mar Torralva,Francisco J. Oliva-Paterna +7 more
TL;DR: In this article, the authors evaluated the passage performance of two potamodromous cyprinids endemic of semiarid regions, with different ecological and swimming behavior, in two of the most common types of stepped fishways: vertical slot and submerged notch with bottom orifice fishways, using a passive integrated transponder (PIT) tag and antenna system.
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References
Optimal Foraging Theory: A Critical Review
TL;DR: It follows that the proportion of individuals in a population foraging in ways that enhance their fitness will tend to increase over time, and the average foraging behavior will increasingly come to be characterized by those characteristics that enhance individual fitness.
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