Ectoparasites modify escape behaviour, but not performance, in a coral reef fish

Binning, Sandra A.; Barnes, Jeffrey; Davies, Jaclyn; Backwell, Patricia R. Y.; Keogh, J. Scott; Roche, Dominique G.

doi:10.1016/j.anbehav.2014.04.010

Cited by 30 publications

(28 citation statements)

References 55 publications

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“…Although some aspects of fast-start performance in fishes have been found to be independent of certain external factors (Binning et al, 2014;Fu et al, 2015), other fast-start variables have shown context dependency (Domenici, 2010a), and recent studies have indicated that viewing fast-starts as fixed actions is too simple (Abrahams et al, 2007;Domenici, 2010b;Marras et al, 2011;Tytell and Lauder, 2008). Studies of the black goby showed that fish react proportionally to the perceived strength of a stimulus (Turesson et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Flowing water affects fish fast-starts: escape performance of the Hawaiian stream goby,Sicyopterus stimpsoni

Diamond

Schoenfuss

Walker

et al. 2016

Journal of Experimental Biology

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Experimental measurements of escape performance in fishes have typically been conducted in still water; however, many fishes inhabit environments with flow that could impact escape behavior. We examined the influences of flow and predator attack direction on the escape behavior of fish, using juveniles of the amphidromous Hawaiian goby Sicyopterus stimpsoni. In nature, these fish must escape ambush predation while moving through streams with high-velocity flow. We measured the escape performance of juvenile gobies while exposing them to a range of water velocities encountered in natural streams and stimulating fish from three different directions. Frequency of response across treatments indicated strong effects of flow conditions and attack direction. Juvenile S. stimpsoni had uniformly high response rates for attacks from a caudal direction (opposite flow); however, response rates for attacks from a cranial direction (matching flow) decreased dramatically as flow speed increased. Mechanical stimuli produced by predators attacking in the same direction as flow might be masked by the flow environment, impairing the ability of prey to detect attacks. Thus, the likelihood of successful escape performance in fishes can depend critically on environmental context.

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Section: Introductionmentioning

confidence: 99%

Flowing water affects fish fast-starts: escape performance of the Hawaiian stream goby,Sicyopterus stimpsoni

Diamond

Schoenfuss

Walker

et al. 2016

Journal of Experimental Biology

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“…It is plausible that PL have more hydrodynamic drag, causing that larvae to capture less‐mobile prey. Various studies have found that ectoparasites negatively affect the swimming performance of fish partially by increasing drag, suggesting that the ability to approach potential prey, or to escape an approaching predator may be severally impaired (Wagner et al ., ; Binning et al ., ). Grutter et al .…”

Section: Discussionmentioning

confidence: 99%

“…It is plausible that PL have more hydrodynamic drag, causing that larvae to capture less-mobile prey. Various studies have found that ectoparasites negatively affect the swimming performance of fish partially by increasing drag, suggesting that the ability to approach potential prey, or to escape an approaching predator may be severally impaired (Wagner et al, 2003;Binning et al, 2014). Grutter et al (2017) recently described how mortality in settling fishes exposed to a gnathiid micropredator was higher for smaller fish, varying from 57% mortality at 6 mm L S to 10% at 12 mm L S .…”

Section: Discussionmentioning

confidence: 99%

Parasitic copepods affect morphospace and diet of larvae of a temperate reef fish

Jahnsen-Guzmán

Bernal-Durán

Landaeta

2018

Journal of Fish Biology

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The effects of ectoparasites on larvae of the clingfish Gobiesox marmoratus were evaluated at the dietary and morphometric levels. The larvae and ectoparasites were collected by nearshore plankton samplings during October, November and December 2013 off El Quisco Bay, central Chile. The standardized abundance of total larvae and those ectoparasitized larvae (PL) was positively related and high parasite prevalence was found throughout the sampling period (up to 38%). Geometric morphometrics analyses indicate main changes in the shape through early ontogeny and subtle but significant variations between PL and non-parasitized larvae (NPL). Prey composition varied between PL and NPL; small size (<6 mm standard length, L ) parasitized larval G. marmoratus ate mostly gastropod larvae, whereas small non-parasitized specimens ate mainly cirripede nauplii. All larger (>8 mm L ), pre-settlement stages parasitized by Trifur and, or Caligus copepods had content in their gut, suggesting that ectoparasites did not diminish prey capture in host with larger size. Morphometric and dietary changes occurring during larval development were decoupled, both for PL and NPL. The maintenance of a slender, more hydrodynamic body through pelagic development and the ingestion of less-mobile prey in PL suggests non-lethal effects of ectoparasitism on rocky-reef fish larvae.

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“…g . later flight response to a threat, Binning et al ., ; limited dispersal range, Horký et al ., ). Gill damage from Pseudodactylogyrus spp.…”

Section: Discussionmentioning

confidence: 99%

Relationship between European eelAnguilla anguillainfection with non‐native parasites and swimming behaviour on encountering accelerating flow

Newbold

Hockley

Williams

et al. 2015

Journal of Fish Biology

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The effect of Anguillicola crassus, Pseudodactylogyrus bini and Pseudodactylogyrus anguillae infection on the behaviour of downstream migrating adult European eels Anguilla anguilla as they encountered accelerating water velocity, common at engineered structures where flow is constricted (e.g. weirs and bypass systems), was evaluated in an experimental flume. The probability of reacting to, and rejecting, the velocity gradient was positively related to A. crassus larval, adult and total abundance. High abundance of Pseudodactylogyrus spp. reduced this effect, but A. crassus was the strongest parasitic factor associated with fish behaviour, and abundance was positively related to delay in downstream passage. Delayed downstream migration at hydraulic gradients associated with riverine anthropogenic structures could result in additional energetic expenditure for migrating A. anguilla already challenged by A. crassus infection.

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Ectoparasites modify escape behaviour, but not performance, in a coral reef fish

Cited by 30 publications

References 55 publications

Flowing water affects fish fast-starts: escape performance of the Hawaiian stream goby,Sicyopterus stimpsoni

Flowing water affects fish fast-starts: escape performance of the Hawaiian stream goby,Sicyopterus stimpsoni

Parasitic copepods affect morphospace and diet of larvae of a temperate reef fish

Relationship between European eelAnguilla anguillainfection with non‐native parasites and swimming behaviour on encountering accelerating flow

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