Behavioral Thermoregulation and Social Interactions of Bluegills, Lepomis macrochirus

Medvick, Patricia A.; Magnuson, John J.; Sharr, Samuel

doi:10.2307/1444036

Cited by 22 publications

(13 citation statements)

References 11 publications

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“…While thermal history has long been recognized as influencing thermal responses in fish (Fry 1967, Brett 1970, Fry & Hochachka 1970, in terms of thermal distribution, a number of other factors, both biotic and abiotic, have also been found to play an important role. These include season (Sullivan & Fisher 1953, Fry & Hochachka 1970, Olla et al 1980, food availability (Neill & Magnuson 1974), nutritional state (Javaid & Anderson 1967, Stuntz & Magnuson 1976), competition and/or predation , Crowder & Magnuson 1982, time of day (Medvick & Miller 1979), salinity (Garside & Morrison 1977), age (McCauley & Read 1973, Kwain & McCauley 1978, social factors (Medvick et al 1981), pathological condition (Reynolds et al 1976) and habitat requirements (Olla et al , 1980.…”

Section: Introductionmentioning

confidence: 99%

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

Olla¹,

Studholme²,

Bejda³

1985

Mar. Ecol. Prog. Ser.

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Behavioral responses of juvenile bluefish Pomatomus saltatrixl. exposed to cold water in a vertical thermal gradient were measured under controlled laboratory conditions. The temperature regime was similar to conditions that these fish encounter in their inshore and estuarine habitats along the Middle Atlantic coast. Measures included activity, schooling, position with respect to depth and temperature, and feeding. Bluefish, acclimated to 20 or 14 'C, avoided cold water as it was introduced into the experimental aquarium by initially increasing swimming speed and shifting their distribution upward in the water column. Fish with a similar thermal history were distributed into progressively colder water from August through November, reflecting a predisposition for lower temperatures. This change in behavioral response to temperature coincided with this species' southerly fall migration. When food was presented at potentially debilitating temperatures which were normally avoided, motivation to feed modified their avoidance response, with the fish entering these temperatures and successfully feeding. Results are discussed in relation to natural patterns of migration and distribution.

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Section: Introductionmentioning

confidence: 99%

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

Olla¹,

Studholme²,

Bejda³

1985

Mar. Ecol. Prog. Ser.

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“…These examples indicate that other abiotic entities can mask or influence the behavioral responses of fishes to oxygen. Undoubtedly biotic interactions similar to those reported for temperature (see Beitinger & Magnuson 1975, Medvick et al 1981 would also be expected to influence the behavioral responses of fishes to oxygen.…”

Section: Resultsmentioning

confidence: 71%

Comparison of low oxygen avoidance in a bimodal breather, Erpetoichthys calabaricus and an obligate water breather, Percina caprodes

Beitinger

Pettit

1984

Environ Biol Fish

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“…One possibility is that the slightly higher temperatures of these trials (23.5 " C versus 22.0 C in the group trials) may have helped H. cyanoguttatus grow and compete more effectively for food. However, higher temperatures are preferred by L. macrochirus as well, including as high as 31 O C (Medvick et al 1981). It is also possible that H. cyanoguttatus mobility and growth are more suited to higher temperatures in situations involving feeding competition.…”

Section: Discussionmentioning

confidence: 99%

Growth of Non-Native Rio Grande Cichlids (Herichthys cyanoguftatus) at Different Salinities and in the Presence of Native Bluegill (Lepomis macrochirus)

Lorenz¹,

O'Connell

2008

Journal of Freshwater Ecology

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The Rio Grande cichlid (Herichthys cyanoguttatus) is a non-native fish that has become established in the greater New Orleans metropolitan area. We conducted laboratory experiments to determine if H. cyanoguttatus growth was impacted either by salinity or the presence of bluegill (Lepomis macrochirus), a native fish. There was no significant difference in growth ofH. cyanoguttatus held at three different salinities (0,8, and 16 psu) for 14 d. When H. cyanoguttatm and L, macrochirus were held at 0 psu for 28 d both with and without the other species present (n = 6 per trial), there was a significant difference in growth between species. Lepomis macrochirus held on their own grew faster than H. cyanoguttatus on their own and faster than H. cyanoguttatus held with L. macrochirus @ < 0.005). Also, L. macrochirus housed with H. cyanoguttatus grew faster than H. cyanoguttatus on their own and faster than H. cyanoguttatus with L. macrochirus (p < 0.001). A second 28 d trial compared growth of individual H. cyanogutatus and L. macrochirus held together with different relative sizes (half with a larger H. cyanoguttatus as invader [n=7]; half with a smaller H. cyanoguttatus as invader [n=7]). This experiment showed no significant difference in growth between the species (g = 0.064). These results indicate that salinity levels will not limit H. cyanoguttatus dispersal in southeastern Louisiana, while biotic resistance in the form of native L. macrochirus may or may not impact growth of this non-native species.

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Behavioral Thermoregulation and Social Interactions of Bluegills, Lepomis macrochirus

Cited by 22 publications

References 11 publications

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

Comparison of low oxygen avoidance in a bimodal breather, Erpetoichthys calabaricus and an obligate water breather, Percina caprodes

Growth of Non-Native Rio Grande Cichlids (Herichthys cyanoguftatus) at Different Salinities and in the Presence of Native Bluegill (Lepomis macrochirus)

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