Water clarity affects collective behavior in two cyprinid fishes

Michael, Sabrina C. J.; Patman, Jon; Lutnesky, Marvin M. F.

doi:10.1007/s00265-021-03060-x

Cited by 19 publications

(21 citation statements)

References 86 publications

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“…For instance, it is shown in [31] that the intensity of the alignment interaction for Kuhlia mugil is roughly proportional to the mean velocity of the school. Moreover, water turbidity [46][47][48] and/or light intensity [49] have been shown to impact the interactions between fish. For instance, the authors of [49] have shown that in darkness and under low illuminance, H. rhodostomus move with lower polarization and a large mean nearest-neighbor distance that can span many body lengths.…”

Section: Resultsmentioning

confidence: 99%

“…Accordingly, collective states determined by different interaction ranges in the model correspond to behavioral changes observed when the environment affects the sensory abilities of the fish. This is related to the lower ability of fish to coordinate their behavior in turbid water, which has been observed in many species [46][47][48].…”

Section: Discussionmentioning

confidence: 99%

“…In particular, we found that in D. rerio, not only the range of the attraction and alignment interactions was much shorter but also the perception was strongly reduced in front of a fish, both features contributing to a much weaker coordination of motion in pairs of fish in this species in comparison with H. rhodostomus. Certain characteristics of the natural environment in which fish swim, such as water turbidity [46][47][48] or light intensity [49], can also affect the perception of individuals and, consequently, the social interactions. Studies have shown that, as turbidity increases, fish form and maintain groups less efficiently, inter-fish distance increases, and groups are less able to coordinate their collective behavior [46][47][48].…”

Section: Introductionmentioning

confidence: 99%

“…Certain characteristics of the natural environment in which fish swim, such as water turbidity [46][47][48] or light intensity [49], can also affect the perception of individuals and, consequently, the social interactions. Studies have shown that, as turbidity increases, fish form and maintain groups less efficiently, inter-fish distance increases, and groups are less able to coordinate their collective behavior [46][47][48]. All these results show that the sensory perception characteristics of individuals have a deep impact on their ability to coordinate their movements which in turn conditions the way information propagates within a group [50,51] and the emergence of other groups level properties such as collective sensing [52,53].…”

Section: Introductionmentioning

confidence: 99%

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The impact of individual perceptual and cognitive factors on collective states in a data-driven fish school model

et al. 2022

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In moving animal groups, social interactions play a key role in the ability of individuals to achieve coordinated motion. However, a large number of environmental and cognitive factors are able to modulate the expression of these interactions and the characteristics of the collective movements that result from these interactions. Here, we use a data-driven fish school model to quantitatively investigate the impact of perceptual and cognitive factors on coordination and collective swimming patterns. The model describes the interactions involved in the coordination of burst-and-coast swimming in groups of Hemigrammus rhodostomus. We perform a comprehensive investigation of the respective impacts of two interactions strategies between fish based on the selection of the most or the two most influential neighbors, of the range and intensity of social interactions, of the intensity of individual random behavioral fluctuations, and of the group size, on the ability of groups of fish to coordinate their movements. We find that fish are able to coordinate their movements when they interact with their most or two most influential neighbors, provided that a minimal level of attraction between fish exist to maintain group cohesion. A minimal level of alignment is also required to allow the formation of schooling and milling. However, increasing the strength of social interactions does not necessarily enhance group cohesion and coordination. When attraction and alignment strengths are too high, or when the heading random fluctuations are too large, schooling and milling can no longer be maintained and the school switches to a swarming phase. Increasing the interaction range between fish has a similar impact on collective dynamics as increasing the strengths of attraction and alignment. Finally, we find that coordination and schooling occurs for a wider range of attraction and alignment strength in small group sizes.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The impact of individual perceptual and cognitive factors on collective states in a data-driven fish school model

et al. 2022

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“…To quantify shoal cohesion, we calculated inter-individual distances between shoal members every 10s. Inter-individual distances between all shoal members were obtained every 10s from coordinates of the entire shoal (following Michael et al 2021; Kimbel and Morell 2015). The mean inter-individual distance for a given shoal was the mean of inter-individual between all individuals.…”

Section: Methodsmentioning

confidence: 99%

Use of multimodal sensory cues in predator avoidance by wild-caught zebrafish shoals

Mukherjee

Malakar

Das

et al. 2023

Preprint

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Shoaling in fishes is regulated by factors like predation, vegetation cover, water flow and food availability. Shoals detect and respond to changes in these ecological factors using a multimodal sensory system. Here, we examine the immediate response of wild-caught zebrafish (Danio rerio)shoals to cues from its natural predator, the snakehead (Channa sp.). Zebrafish shoals were recorded upon exposure to (1) olfactory predator cues, (2) visual predator cues, (3) both cues together, and (4) no cue. We tracked individuals and analysed shoal responses across these treatments. We found that compared to control treatments, shoals receiving either visual or olfactory cues had significantly greater: (i) cohesion, (ii) polarization and (iii) velocity. Interestingly, when the shoals received both cues simultaneously, the cohesion, polarization and velocity decreased and a significantly greater number of individual freezing events occurred. Therefore, zebrafish relied on both visual and olfactory cues to escape predation. However, when shoals were presented with both cues together, while freezing frequency increased, other responses were comparable to control treatments where no predator cue was provided. While this study indicates that multimodal cues elicit a different anti-predator response than the cues singly, more experiments are required to identify the underlying cause of this behaviour.

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Salinity and diel timing affect group structure in Delta Smelt

Chase,

Tsai,

Croshaw

et al. 2023

Aquaculture Fish & Fisheries

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Delta Smelt are thought to be on the precipice of extinction. Studies that examine how this endangered species responds to environmental change are important to informing conservation efforts. In the wild, Delta Smelt are likely to encounter wide variation in the salinity of their environment that is influenced by both natural and anthropogenic factors. We examined how salinity affects the group structure of Delta Smelt across multiple diel cycles. We found that the interaction between salinity (0, 5, 10 and 15 ppt) and time period (Day 1, Night 1, Day 2 and Night 2) influenced their spatial distribution within a group. Specifically, Delta Smelt were less dispersed, more cohesive and more homogenously distributed in saline water than in freshwater, but only on the first day, and this difference was not statistically significant. We also found that Delta Smelt were significantly less dispersed, more cohesive and more homogenous during the day than at night. Thus, Delta Smelt appear to behaviourally adapt to the initial stress of acute salinity exposure, which may mirror their physiological ability to acclimate to such conditions. Additionally, Delta Smelt group structure appears to shift depending on the time of day, suggesting that diel timing may influence conspecific interactions and should be considered in the experimental design of future studies. These findings further our understanding of how Delta Smelt behaviourally respond to environmental and diel variation.

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Water clarity affects collective behavior in two cyprinid fishes

Cited by 19 publications

References 86 publications

The impact of individual perceptual and cognitive factors on collective states in a data-driven fish school model

The impact of individual perceptual and cognitive factors on collective states in a data-driven fish school model

Use of multimodal sensory cues in predator avoidance by wild-caught zebrafish shoals

Salinity and diel timing affect group structure in Delta Smelt

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