Contemporary topics in fish cognition and behaviour

Pouca, Catarina Vila; Brown, Culum

doi:10.1016/j.cobeha.2017.03.002

Cited by 35 publications

(30 citation statements)

References 55 publications

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“…Both of these features can often be used to recognise biologically relevant stimuli. However, some & Brown, 2014; Pouca & Brown, 2017), few cases of species-specific cognitive abilities have been reported for this taxon so far.…”

Section: Introductionmentioning

confidence: 98%

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Guppies learn faster to discriminate between red and yellow than between two shapes

2018

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Animal species are expected to evolve specialised cognitive abilities to solve the tasks that are critical for their fitness. The literature contains several examples of specialised cognitive abilities, but few regard fish. The guppy, Poecilia reticulata, is a freshwater fish in which females choose their mates based on colouration, and orange‐coloured fruits are important diet enrichments for both sexes. For these reasons, we expect that this species has evolved enhanced learning abilities in colour discrimination compared to other types of discrimination. The comparison between studies in which guppies were tested for colour discrimination and studies in which guppies were tested for shape discrimination seems to support this hypothesis, but direct testing is still lacking. We experimentally compared the learning performance of guppies trained in a red–yellow colour discrimination learning task and that of guppies trained in a shape discrimination learning task using the same, automated conditioning procedure. Guppies trained in the colour discrimination showed greater learning performance, which provides support to the hypothesis that guppies possess enhanced colour discrimination abilities. Moreover, we found that male guppies performed better than females in both shape and colour discrimination learning.

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Section: Introductionmentioning

confidence: 98%

“…Despite the increasing interest in the study of fish cognition (Bshary & Brown, 2014;Pouca & Brown, 2017), few cases of species-specific cognitive abilities have been reported for this taxon so far.…”

Section: Introductionmentioning

confidence: 99%

Guppies learn faster to discriminate between red and yellow than between two shapes

2018

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“…Fish cognition and behavior is a well-established research field ( Vila Pouca and Brown, 2017 and references therein), and the characterisation of fish model systems’ behavior, using behavioral measurable changes, has found several practical applications, such as the detection of leaders in a group ( Mwaffo et al, 2017 ), the identification of information flows within a school of fish ( Crosato et al, 2018 ), the presence in the aquatic environment of contaminants including caffeine ( Ladu et al, 2015 ), drugs ( Liu et al, 2011 ), hypochlorite ( Magalhães et al, 2007 ; Nimkerdphol and Nakagawa, 2008 ; Teles et al, 2015 ), methyl-mercury ( Eguiraun et al, 2014 , 2016 ), the Se:Hg molar ratio in their feeds ( Eguiraun et al, 2018 ) and alterations in environmental parameters such as hypoxia, feeding regime ( Polonschii et al, 2013 ), and high fish density ( Papoutsoglou et al, 1998 ; Di Marco et al, 2008 ).…”

Section: Introductionmentioning

confidence: 99%

Reducing the Number of Individuals to Monitor Shoaling Fish Systems – Application of the Shannon Entropy to Construct a Biological Warning System Model

et al. 2018

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The present study aims at identifying the lowest number of fish (European seabass) that could be used for monitoring and/or experimental purposes in small-scale fish facilities by quantifying the effect that the number of individuals has on the Shannon entropy (SE) of the trajectory followed by the shoal’s centroid. Two different experiments were performed: (i) one starting with 50 fish and decreasing to 25, 13, and 1 fish, and (ii) a second experiment starting with one fish, adding one new fish per day during 5 days, ending up with five fish in the tank. The fish were recorded for 1h daily, during which time a stochastic event (a hit in the tank) was introduced. The SE values were calculated from the images corresponding to three arbitrary basal (shoaling) periods of 3.5 min prior to the event, and to the 3.5 min period immediately after the event (schooling response). Taking both experiments together, the coefficient of variation (CV) of the SE among measurements was largest for one fish systems (CV 37.12 and 17.94% for the daily average basal and response SE, respectively) and decreased concomitantly with the number of fish (CV 8.6–10% for the basal SE of 2 to 5 fish systems and 5.86, 2.69, and 2.31% for the basal SE of 13, 25, and 50 fish, respectively). The SE of the systems kept a power relationship with the number of fish (basal: R2= 0.93 and response: R2= 0.92). Thus, 5–13 individuals should be the lowest number for a compromise between acceptable variability (<10%) in the data and reduction in the number of fish. We believe this to be the first scientific work made to estimate the minimum number of individuals to be used in subsequent experimental (including behavioral) studies using shoaling fish species that reaches a compromise between the reduction in number demanded by animal welfare guidelines and a low variability in the fish system’s response.

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“…Fish behavioral habits in response to their surrounding are either positively (taxis) and negative (phobias) (Fitri 2012;Gutowsky et al 2017;Pouca and Brown 2017;Benitez et al 2018;Suriyampola et al 2018). This research revealed six patterns of behavior of A. bicolor elver against different trap designs, which include: (i).…”

Section: Resultsmentioning

confidence: 98%

Short Communication: Behavioral study on Anguilla bicolor using a modified trap design at laboratory scale

et al. 2019

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Abstract. Fitri ADP, Boesono H, Kurohman F, Jayanto BB, Dewi DE, Sabdono A. 2019. Short Communication: Behavioral study on Anguilla bicolor using a modified trap design at laboratory scale. Biodiversitas 20: 2159-2165. The information on the behavioral juvenile eels Anguilla bicolor is urgently needed as basic design of selective and sustainable traps. The objectives of this study were to find out and analyze the behavioral pattern and characteristics of A. bicolor elvers in the modified and non-modified eel traps. The test organism, A. bicolor juvenile eels with 150-170 mm in length, were obtained from Segara Anakan waters, Cilcacap. The 2 trap designs, which were modifications of the 450 mm long PVC eel trap, with and without the addition of bait hole, were used in this study. All experiments were carried out in the laboratory of Fish Behavior, Diponegoro University, Semarang, Indonesia. The eel characters and response time were recorded using a handy camera that placed on top of the aquariums. The results indicated six types of A. bicolor behavior in response to the modification of eel traps. Moreover, the trap design with an additional hole on the wall, with or without bait, was proven to have no significant effect on the response time. While trap without column and bait possessed the fastest response time at which elver penetrated to the trap (p-value ≤ 0.05). Furthermore, these results indicated that A. bicolor elver gained entrance into the trap, in an attempt to take shelter.

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Contemporary topics in fish cognition and behaviour

Cited by 35 publications

References 55 publications

Guppies learn faster to discriminate between red and yellow than between two shapes

Guppies learn faster to discriminate between red and yellow than between two shapes

Reducing the Number of Individuals to Monitor Shoaling Fish Systems – Application of the Shannon Entropy to Construct a Biological Warning System Model

Short Communication: Behavioral study on Anguilla bicolor using a modified trap design at laboratory scale

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