Linking muscle metabolism and functional variation to field swimming performance in bluegill sunfish (Lepomis macrochirus)

2018 ◽  
Vol 188 (3) ◽  
pp. 461-469 ◽  
Author(s):  
David J. Ellerby ◽  
Shauna Cyr ◽  
Angela X. Han ◽  
Mika Lin ◽  
Lloyd A. Trueblood
Keyword(s):  
Swimming Performance ◽  
Lepomis Macrochirus ◽  
Muscle Metabolism ◽  
Bluegill Sunfish ◽  
Functional Variation

Assessing the ecological relevance of swimming performance traits: a case study of bluegill sunfish (Lepomis macrochirus)

2018 ◽  
Vol 52 (4) ◽  
pp. 311-322 ◽  
Author(s):  
David J. Ellerby ◽  
Caroline G. Berlin ◽  
Kelsey J. Cathcart ◽  
Mary Kate Dornon ◽  
Asher Feldman ◽  
...  
Keyword(s):  
Swimming Performance ◽  
Lepomis Macrochirus ◽  
Bluegill Sunfish ◽  
Ecological Relevance ◽  
Performance Traits

Morphological and swim performance variation among reproductive tactics of bluegill sunfish (Lepomis macrochirus)

2011 ◽  
Vol 68 (10) ◽  
pp. 1802-1810 ◽  
Author(s):  
S.F. Colborne ◽  
M.C. Bellemare ◽  
P.R. Peres-Neto ◽  
B.D. Neff
Keyword(s):  
Morphological Variation ◽  
Swimming Performance ◽  
Lepomis Macrochirus ◽  
Reproductive Behaviour ◽  
Bluegill Sunfish ◽  
Reproductive Tactics ◽  
Swim Performance ◽  
Body Shapes ◽  
Similar Body ◽  
Reproductive Tactic

Ecomorphology examines the relationship between morphology and ecological characteristics often in relation to foraging, predation, and habitat use. However, ecomorphology may also be linked to reproductive behaviour (“tactic”), but few studies have examined this relationship. We examined bluegill sunfish (Lepomis macrochirus Rafinesque, 1819), a species in which some males become “parentals” while others adopt a parasitic “cuckolder” tactic. Parentals build nests, court females, and care for the young. Cuckolders instead act as “sneakers”, darting into nests while females are releasing eggs, and then transition to “satellites”, mimicking female appearance. We predicted that reproductive tactic would be associated with morphological variation and swimming performance. We collected bluegill parentals, sneakers, satellites, females, and juveniles to compare morphology, burst swim, and swim endurance. We found significant morphological variation among the groups, with only satellites and females having similar body shapes. Interestingly, satellites did not overlap in shape with sneakers, despite representing a single ontogenetic life history, providing evidence for a relationship between reproductive tactic and morphology. We also found that swim performance varied among the groups, with sneakers having the fastest burst swim and longest swim endurance. Our results indicate that reproductive tactic is an important factor in the ecomorphology of fish.

scholarly journals Boldness and behavioral syndromes in the bluegill sunfish, Lepomis macrochirus

2009 ◽  
Vol 20 (2) ◽  
pp. 231-237 ◽  
Author(s):  
Alexander D.M. Wilson ◽  
Jean-Guy J. Godin
Keyword(s):  
Lepomis Macrochirus ◽  
Behavioral Syndromes ◽  
Bluegill Sunfish

Effect of water temperature on stomach evacuation rates, and estimation of daily food intake of bluegill sunfish (Lepomis macrochirus Rafinesque)

1990 ◽  
Vol 68 (3) ◽  
pp. 591-595 ◽  
Author(s):  
D. J. Booth
Keyword(s):  
Food Intake ◽  
Water Temperature ◽  
Field Experiments ◽  
Lepomis Macrochirus ◽  
Stomach Contents ◽  
Bluegill Sunfish ◽  
Field Methods ◽  
Daily Food Intake ◽  
Evacuation Rate ◽  
Daily Food

Field experiments were conducted over the summer of 1983 to determine food-evacuation rate and measure stomach fullness of bluegill sunfish (Lepomis macrochirus). A combination of these data gave estimates of daily food intake of fish. Fish were captured and held in large holding pens in Lake Opinicon, Ontario, Canada, and periodically subsampled over 24 h to monitor changes in mean weight of stomach contents. Stomach-evacuation rates obtained in this way increased significantly with water temperature over the range 10–25 °C. However, variation in stomach-evacuation rate was considerable, reducing the utility of water temperature as a predictor of stomach-evacuation rate. It is suggested that the simple field methods employed here to estimate stomach evacuation and food intake are more useful in the estimation of daily ration than the more commonly employed laboratory-based methods.

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