The role of acclimation temperature in the induction of torpidity in the largemouth bass (Micropterus salmoides)

Cryobiology ◽  
1981 ◽  
Vol 18 (1) ◽  
pp. 87-88
Author(s):  
D.E. Lemons ◽  
L.I. Crawshaw
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Acclimation Temperature

Low-temperature dormancy in fish

1984 ◽  
Vol 246 (4) ◽  
pp. R479-R486 ◽  
Author(s):  
L. I. Crawshaw
Keyword(s):  
Food Intake ◽  
Ambient Temperature ◽  
Largemouth Bass ◽  
Breathing Pattern ◽  
Brain Temperature ◽  
Micropterus Salmoides ◽  
Acclimation Temperature ◽  
Acid Base ◽  
Ictalurus Nebulosus ◽  
The Relationship

The importance of low ambient temperature in the physiology of winter dormancy was studied in the brown bullhead (Ictalurus nebulosus) and the largemouth bass (Micropterus salmoides). The bullheads frequently entered a sleep-like state at low temperatures; the likelihood of being aroused from this state was inversely proportional to the ambient temperature. Spontaneous activity for both species was relatively constant from 17 to 7 degrees C; at lower temperatures activity decreased. The selected temperature was lowered in both species as a consequence of acclimation to 3 degrees C; if given the opportunity, fish of both species moved to temperatures above 25 degrees C within 1 day in spite of the consequent acid-base and metabolic imbalances. In bass, food intake was very low for acclimation temperatures of 8 degrees C and below; at higher temperatures the relationship between food intake and acclimation temperature required 4 wk to stabilize. Quiescent brown bullheads exhibited discontinuous breathing. Alteration of brain temperature with implanted thermodes indicated that the main locus of control of this breathing pattern is in the medulla; lesser influences emanate from the anterior hypothalamus and the midbrain. Metabolism was measured at a series of acclimation temperatures between 3 and 17 degrees C for both species. No evidence of a discontinuous function (metabolic shutdown) was seen for either species.

scholarly journals Overwinter growth and survival of age-0 largemouth bass (Micropterus salmoides): revisiting the role of body size

1998 ◽  
Vol 55 (11) ◽  
pp. 2414-2424 ◽  
Author(s):  
James E Garvey ◽  
Russell A Wright ◽  
Roy A Stein
Keyword(s):  
Largemouth Bass ◽  
Energy Content ◽  
Micropterus Salmoides ◽  
Growth And Survival ◽  
Large Size ◽  
Predation Intensity ◽  
Energetic Condition ◽  
Wet Weight ◽  
Summer Growth

How large size affects overwinter growth and survival of age-0 fish may vary as a function of food, predation, and energetic condition. During two winters in Ohio, we assessed how these factors affected growth and survival of varying sizes of age-0 largemouth bass (Micropterus salmoides) by combining a field survey (N = 2 reservoirs) with multiscale experiments (reservoirs, ponds, outdoor pools). In our survey, more small (< 100 mm total length) individuals died by spring in one reservoir than in the other. Similarly, when we stocked two reservoirs with marked age-0 largemouth bass in fall, mortality of small individuals was higher in one system overwinter, potentially due to differences in predation intensity. In ponds during two winters, size-selective mortality of small largemouth bass occurred in only two of eight ponds, potentially as a function of cannibalism. Varying ration in pools (starved, 0.5× maintenance, or 1.5× maintenance) did not affect survival, even though starved individuals lost substantial wet weight and energy content. Only when predators were present did small individuals die at high rates, although energy depletion may have contributed to predatory mortality. To increase the probability of overwinter survival, managers should seek to improve first-summer growth, reduce winter predation, and increase winter forage.

Glochidial metamorphosis of the freshwater mussel Lampsilis cardium (Bivalvia: Unionidae) on larval tiger salamanders, Ambystoma tigrinum ssp. (Amphibia: Ambystomidae)

1997 ◽  
Vol 75 (3) ◽  
pp. 505-508 ◽  
Author(s):  
G. Thomas Watters
Keyword(s):  
North America ◽  
Largemouth Bass ◽  
Laboratory Experiments ◽  
Freshwater Mussels ◽  
Micropterus Salmoides ◽  
Freshwater Mussel ◽  
Ambystoma Tigrinum ◽  
Tiger Salamanders ◽  
Lampsilis Cardium

Larval tiger salamanders (Ambystoma tigrinum ssp.) were infected with glochidia of the freshwater mussel Lampsilis cardium in laboratory experiments. At 20–21 °C, metamorphosis occurred from 9 to 39 days, primarily between 9 and 17 days. The percentage of attached glochidia that metamorphosed varied from 0.27 to 15.7%. Metamorphosis on the salamanders occurred more quickly than on a known piscine host, largemouth bass (Micropterus salmoides), but a smaller percentage of the total attached glochidia metamorphosed. The role of amphibians as hosts of freshwater mussels in North America has not been addressed. Recognizing such a relationship could have important consequences for our understanding of mussel zoogeography.

Temperature and Scale Size Errors in the Use of [14C]Glycine Uptake by Scales as a Growth Index

1982 ◽  
Vol 39 (10) ◽  
pp. 1366-1372 ◽  
Author(s):  
Carl M. Smagula ◽  
Ira R. Adelman
Keyword(s):  
Largemouth Bass ◽  
Incubation Temperature ◽  
Micropterus Salmoides ◽  
Response Surfaces ◽  
Body Growth ◽  
Acclimation Temperature ◽  
Surface Model ◽  
Glycine Uptake ◽  
Scale Size ◽  
Uptake Data

Measurement of glycine uptake by largemouth bass (Micropterus salmoides) scales at several acclimation (14, 20, and 26 °C) and incubation (14–32 °C, 3 °C increments) temperatures revealed significant interaction between these factors (P < 0.005). Therefore, comparison of uptake data from several acclimation groups could not be made at any arbitrary "standard" incubation temperature without introducing error. An error-free scale incubation criterion was tentatively proposed as optimum incubation temperature for each fish acclimation temperature, determined from a laboratory response surface model. Incubation temperature of maximum uptake was associated with temperature of maximum body growth of bass which suggests that uptake may be integrated with growth. Use of scale weight to express uptake relative to scale size will probably introduce systematic error, and scale area should provide the "best" measure for normalization of uptake data. Glycine uptake by 14, 20, and 26 °C acclimated scales was linearly related to body growth on a loge–loge basis (P < 0.05); however, within acclimation groups significant correlation was not noted.Key words: acclimation temperature, incubation temperature, response surfaces, largemouth bass, Micropterus salmoides

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