Evidence of morphological and functional variation among Bluegill<i>Lepomis macrochirus</i>populations across Grand Lake St Mary's watershed area

Bell, Amanda; Jacquemin, Stephen J.

doi:10.1080/02705060.2017.1319429

Cited by 8 publications

(4 citation statements)

References 73 publications

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“…Importantly, these observations provide additional links between morphology and swimming performance among both species, and are consistent with laboratory experiments on other taxa that have shown particular shapes (mainly related to fusiformity) to exhibit increased swimming performance (Qu et al 2013;Bell and Jacquemin 2017). In the field, morphological differences among individuals of the same or similar cyprinid species have been linked to specific macro and micro habitats (i.e., flow regime) and are often discussed in relation to swimming abilities or selection.…”

Section: Discussionsupporting

confidence: 82%

Preliminary Understanding of Complexities in Swimming Performance of Common Minnow (Cyprinidae) Taxa

Nichols

Smith

Huelsman

et al. 2018

OJS

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Understanding swimming performance of native freshwater fishes has implications for ecology, conservation, and management. In particular, this type of information has practical importance for improving the understanding of fish dispersal, occurrence, migration, and invasive potential. The objective of this study was to characterize swimming performance of 2 taxa from the comparatively understudied minnow family (Cyprinidae) and test for potential drivers as a function of total length, sex, habitat, morphology, or some combination. The study assessed Spotfin Shiner (Cyprinella spiloptera; n = 66) and Bluntnose Minnow (Pimephales notatus; n = 24) populations from an ontogenic range of male and female individuals from lentic and lotic habitats in Indiana and Ohio. Akaike information criterion (AIC) model selection identified the most parsimonious linear regression model to predict swimming performance of Spotfin Shiner and Bluntnose Minnow independently. Overall, larger Spotfin Shiners were superior swimmers compared with smaller individuals. In both species, individuals having more streamlined heads and elongated caudal regions were better swimmers. Additionally, Spotfin Shiners that were collected from lotic environments were generally better swimmers than individuals from lentic environments. Models did not recover sex-specific effects in either species—or meaningful total length, or habitat effects, in Bluntnose Minnows. Overall, this study provides evidence of a complex series of swimming performance covariates when assessing or understanding performance. This has implications for aquatic population, assemblage, and community ecology as well as management and conservation efforts.

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Section: Discussionsupporting

confidence: 82%

Preliminary Understanding of Complexities in Swimming Performance of Common Minnow (Cyprinidae) Taxa

Nichols

Smith

Huelsman

et al. 2018

OJS

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“…The present study revealed that most body proportions of the three Lateolabrax species change with growth (Table 3). Although such proportional changes with growth have been reported for a number of fishes, including two black-and-white snappers of the genus Macolor (Kishimoto et al 1987), Spanish mackerel, Scomberomorusniphonius (Yokogawa 1996), giraffe catfish, Auchenoglanisoccidentalis (Chioma et al 2007), red porgy, Pagruspagrus (Minos et al 2008), bluegill, Lepomismacrochirus (Yokogawa 2013a; Bell and Jacquemin 2017), largemouth bass, Micropterussalmoides (Yokogawa 2014), two flatfishes of the genus Pleuronichthys (Yokogawa 2015), and some sea banjofishes of the genus Banjos (Matsunuma and Motomura 2017), such have been frequently neglected, particularly in taxonomic studies.…”

Section: Discussionmentioning

confidence: 99%

Morphological differences between species of the sea bass genus Lateolabrax (Teleostei, Perciformes), with particular emphasis on growth-related changes

Yokogawa¹

2019

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Morphological differences, including growth-related changes, were examined in three morphologically similar East Asian sea bass species,Lateolabraxjaponicus,L.maculatusandL.latus. In many cases, body measurements indicated specific patterns of growth-related proportional changes.Lateolabraxlatusdiffered from the other two species in having greater body depth, caudal peduncle depth, caudal peduncle anterior depth, snout length, and upper and lower jaw length proportions. In particular, scatter plots for caudal peduncle anterior depth relative to standard length (SL) in that species indicated complete separation from those of the other two species, being a new key character for identification. Comparisons ofL.japonicusandL.maculatusrevealed considerable proportional differences in many length-measured characters, including fin lengths (first and second dorsal, caudal and pelvic), snout length, post-orbital preopercular width (POPW) and post-orbital length. In particular, snout length (SNL) and POPW proportions of the former were greater and smaller for specimens >200 and ≤ 200 mm SL, respectively. Because the scatter plots of these proportions for the two species did not overlap each other in either size range, identification of the species was possible using a combination of the two characters. In addition, scatter plots of the POPW / SNL proportion (%) ofL.japonicusandL.maculatuswere almost completely separated throughout the entire size range examined (border level 90%), a further aid to identification. The numbers of pored lateral line scales and scales above the lateral line tended to increase and decrease with growth, respectively, inL.japonicus, whereas scales below the lateral line and gill raker numbers tended to increase with growth inL.maculatus. Because the ranges of these meristic characters may therefore vary with specimen size, they are unsuitable for use as key characters. Accordingly, a new key is proposed for the genusLateolabrax.

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“…(2015) demonstrated that all members of a school appear to benefit from the collective effort, so a stable group formation is associated with energetic savings for lead and trailing fish. The L. macrochirus population examined in this study have lived for many generations in a lentic environment, likely leading to adaptation to swimming in a relatively stable aquatic environment ( e.g ., Bell Jr. & Jacquemin, 2017). Still water conditions would make possible the laminar flow conditions that facilitate the energetic benefits of cohesive group swimming.…”

Section: Discussionmentioning

confidence: 99%

Group swimming behaviour and energetics in bluegillLepomis macrochirusand rainbow troutOncorhynchus mykiss

Currier

Rouse

Coughlin

2020

Journal of Fish Biology

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Group swimming size influences metabolic energy consumption and swimming behaviour in fishes. Hydrodynamic flows and vortices of other fish are thought to be beneficial in terms of the energetic costs of swimming. Similarly, abiotic obstructions have been shown to have similar benefits with respect to metabolic consumption in swimming fish such as rainbow trout Oncorhynchus mykiss. The current study works to examine metabolic rates and swimming behaviours as a function of group swimming with bluegill sunfish Lepomis macrochirus and O. mykiss. Fishes were subjected to individual and group swimming in a respiratory swim tunnel to determine oxygen consumption as a proxy for the metabolic rate of swimming fish. In addition, fish movements within the swim tunnel test chamber were tracked to examine group swimming behaviour. We hypothesized that fish would benefit metabolically from group swimming. In the case of O. mykiss, we also hypothesized that groups would benefit from the presence of an abiotic structure, as has been previously observed in fish swimming individually. Our results suggest that the influence of group size on swimming metabolism is species specific. While L. macrochirus show decreased metabolic rate when swimming in a group compared to individually, O. mykiss did not show such a metabolic benefit from group swimming.

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Evidence of morphological and functional variation among BluegillLepomis macrochiruspopulations across Grand Lake St Mary's watershed area

Cited by 8 publications

References 73 publications

Preliminary Understanding of Complexities in Swimming Performance of Common Minnow (Cyprinidae) Taxa

Preliminary Understanding of Complexities in Swimming Performance of Common Minnow (Cyprinidae) Taxa

Morphological differences between species of the sea bass genus Lateolabrax (Teleostei, Perciformes), with particular emphasis on growth-related changes

Group swimming behaviour and energetics in bluegillLepomis macrochirusand rainbow troutOncorhynchus mykiss

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