Vital Statistics and Migratory Patterns of a Potamodromous Stock of Smallmouth Bass, Micropterus dolomieui

1977 ◽  
Vol 34 (1) ◽  
pp. 142-147 ◽  
Author(s):  
William H. Robbins ◽  
Hugh R. MacCrimmon
Keyword(s):  
Water Temperature ◽  
Vital Statistics ◽  
Smallmouth Bass ◽  
Spawning Area ◽  
Lake Simcoe ◽  
Micropterus Dolomieui ◽  
Migratory Patterns ◽  
Highly Correlated ◽  
Annual Mortality

Between 1968 and 1971, upriver movement of bass from Lake Simcoe was highly correlated with water temperature and discharge (r = 0.704, P <.001). Vital statistics and growth were similar to lacustrine and riverine stocks at similar latitude. Total annual mortality averaged 0.56 with 65% attributable to angler exploitation, principally in the river. Some 34% (after mortality) river spawners returned upriver in subsequent years. Repeat spawners (65% female) comprised an average 19% of the spawning runs. Most adults moved downriver in late June and July when water temperatures approached 25 °C. Adults remaining in the spawning area experienced water temperatures to 29 °C before emigrating during freshets in July and August. Lake migrants intermingled on shoal areas with lacustrine and possibly other potamodromous stocks each summer.

Influence of temperature, water current, illumination, and time on activity and substrate selection in juvenile smallmouth bass (Micropterus dolomieui)

1981 ◽  
Vol 59 (12) ◽  
pp. 2322-2330 ◽  
Author(s):  
Hugh R. MacCrimmon ◽  
William H. Robbins
Keyword(s):  
Water Temperature ◽  
Smallmouth Bass ◽  
Water Current ◽  
Activity Levels ◽  
Substrate Selection ◽  
Black And White ◽  
Micropterus Dolomieui ◽  
Highly Correlated ◽  
Fish Activity ◽  
Selection Of

Behaviour of wild juvenile smallmouth bass, Micropterus dolomieui, in the laboratory was significantly influenced by water temperature, current, and illumination. Activity increased with increasing water temperature and (or) water current. When exposed to black and white substrate, selection of black was inversely dependent on temperature and current, and highly correlated with fish activity (r = 0.995, P < 0.001, inverse cubic relation). Substrate pattern influenced fish activity, aggregation, and social interaction. Activity levels increased with increasing incident illumination whereas selection of black substrate declined, particularly at higher water temperatures. Older juveniles became less active with age and preferred black substrate when available, thereby indicating a developing behavioural pattern which favours survival and energy conservation under natural nursery conditions by the discrete use of available cover.

A Sigmoid Model to Predict Gastric Evacuation Rates of Smallmouth Bass (Micropterus dolomieui) Fed Juvenile Salmon

1991 ◽  
Vol 48 (5) ◽  
pp. 933-937 ◽  
Author(s):  
Jean Beyer Rogers ◽  
Craig C. Burley
Keyword(s):  
Water Temperature ◽  
Laboratory Experiments ◽  
Prey Size ◽  
Stomach Contents ◽  
Smallmouth Bass ◽  
Juvenile Salmon ◽  
Gastric Evacuation ◽  
Predator Size ◽  
Micropterus Dolomieui ◽  
Increasing Temperature

Laboratory experiments were conducted to examine the effects of water temperature, predator size, prey size, and prey number on gastric evacuation of smallmouth bass (Micropterus dolomieui) fed juvenile salmon. The smallmouth bass were allowed to feed voluntarily after 24–48 h of starvation and stomachs were pumped at intervals of 1–4 h until 90% of the stomach contents were evacuated (E90). Evacuation approximated an S-shaped curve over time, and a sigmoid model was developed to predict evacuation at varying water temperatures, total meal weights, predator sizes, and prey number. The rate of evacuation increased with increasing water temperature, meal weight, or predator size. The E90 increased with larger meal weights but decreased with increasing temperature or predator size. E90 ranged between 4 and 95 h, depending upon conditions. E90 was slower than those estimated previously for another predator of salmon, the stomachless northern squawfish (Ptychocheilus oregonensis).

Climate regimes and water temperature changes in the Columbia River: bioenergetic implications for predators of juvenile salmon

2001 ◽  
Vol 58 (9) ◽  
pp. 1831-1841 ◽  
Author(s):  
James H Petersen ◽  
James F Kitchell
Keyword(s):  
Water Temperature ◽  
Columbia River ◽  
Smallmouth Bass ◽  
Micropterus Dolomieu ◽  
Climatic Effects ◽  
Marine Habitats ◽  
Climate Shifts ◽  
Climatic Regime ◽  
Highly Correlated ◽  
Predation Rates

We examined how climatic regime shifts may have affected predation rates on juvenile Pacific salmonids (Oncorhynchus spp.) by northern squawfish (Ptychocheilus oregonensis, also called northern pikeminnow), smallmouth bass (Micropterus dolomieu), and walleye (Stizostedion vitreum) in the Columbia River. During 1933–1996, oceanic, coastal, and freshwater indices of climate were highly correlated, and an index for the Columbia River Basin suggested that climate shifts may have occurred about 1946, 1958, 1969, and 1977. Summer water temperature varied as much as 2°C between climate periods. We used a bioenergetics model for northern squawfish, the most important piscivore, to predict that predation on salmonids would have been 26–31% higher during two periods with relatively warm spring–summer water temperatures (1933–1946, 1978–1996) than during an extremely cold period (1947–1958). Predicted predation rates of northern squawfish were 68–96% higher in the warmest year compared with the coldest year. Predation rates of smallmouth bass and walleye on juvenile salmonids varied among climate periods similar to rates predicted for northern squawfish. Climatic effects need to be understood in both freshwater and nearshore marine habitats, since growth rates of salmon populations are especially sensitive to mortality during early life stages.

Variability of aluminum concentrations in organs and whole bodies of smallmouth bass (Micropterus dolomieui)

1985 ◽  
Vol 19 (9) ◽  
pp. 828-831 ◽  
Author(s):  
William G. Brumbaugh ◽  
Donald A. Kane
Keyword(s):  
Smallmouth Bass ◽  
Micropterus Dolomieui

Aggression of guarding male smallmouth bass (Micropterus dolomieui) towards potential brood predators near the nest

1993 ◽  
Vol 71 (2) ◽  
pp. 437-440 ◽  
Author(s):  
R. J. Ongarato ◽  
E. J. Snucins
Keyword(s):  
Aggressive Behaviour ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Smallmouth Bass ◽  
Brown Bullhead ◽  
Ictalurus Nebulosus ◽  
Defence Behaviour ◽  
Micropterus Dolomieui ◽  
Brood Guarding

Models of potential brood predators placed near the nest were used to elicit defence behaviour in male smallmouth bass (Micropterus dolomieui) in the field. The three predator models represented a conspecific, a species found in the lake (yellow perch, Perca flavescens), and a species not present in the lake (brown bullhead, Ictalurus nebulosus). Aggressive behaviour increased with brood age and with decreasing distance between model and nest. Brood-guarding smallmouth bass exhibited a generalized response to the three predator models and did not discriminate between them by altering levels of aggression.

scholarly journals Do natural history data predict the movement ecology of fishes in Lake Ontario streams?

2014 ◽  
Vol 71 (8) ◽  
pp. 1171-1185 ◽  
Author(s):  
Ivan J. Dolinsek ◽  
Robert L. McLaughlin ◽  
James W.A. Grant ◽  
Lisa M. O’Connor ◽  
Thomas C. Pratt
Keyword(s):  
Natural History ◽  
Water Temperature ◽  
Movement Ecology ◽  
Stream Fishes ◽  
Detailed Data ◽  
Movement Behaviour ◽  
Arrival Times ◽  
History Data ◽  
History Information ◽  
Highly Correlated

Little is known about the movements of most stream fishes, so fisheries managers often rely on natural history data from the literature to make management decisions. Observations of over 15 000 individuals from 37 species across 3 years were used to evaluate four aspects of the reliability of literature data for predicting the movement behaviour of stream fishes: (i) water temperature when fish enter streams; (ii) reasons for moving into the streams; (iii) stream residence times of migrants; and (iv) relative use of lake and stream habitats. Comparisons of our data for arrival times in the streams, water temperature at arrival, and time spent in the streams were highly correlated with literature data, whereas relative use of the lake was not. Further, our detailed data revealed two novel findings: (1) in many species juveniles were also moving into streams, even in those species where adults were clearly spawning in the streams; and (2) adult-sized individuals were moving into streams for nonreproductive purposes. Our results suggest that fishery managers can confidently use natural history information to gain general insights into the movement ecology of fishes, but should also recognize that this information remains incomplete in important ways.

Introgressive Hybridization of Smallmouth Bass (Micropterus dolomieui) and Guadalupe Bass (M. treculi)

Copeia ◽  
1983 ◽  
Vol 1983 (3) ◽  
pp. 672 ◽  
Author(s):  
Donald H. Whitmore
Keyword(s):  
Introgressive Hybridization ◽  
Smallmouth Bass ◽  
Micropterus Dolomieui

Effect of acute and chronic temperature transition on enzymes of cardiac metabolism in white perch (Morone americana), yellow perch (Perca flavescens), and smallmouth bass (Micropterus dolomieui)

1991 ◽  
Vol 69 (1) ◽  
pp. 258-262 ◽  
Author(s):  
Dawn H. Sephton ◽  
William R. Driedzic
Keyword(s):  
Yellow Perch ◽  
Citrate Synthase ◽  
White Perch ◽  
Perca Flavescens ◽  
Smallmouth Bass ◽  
Transferase Activity ◽  
Morone Americana ◽  
Coa Transferase ◽  
Micropterus Dolomieui ◽  
The Impact

White perch (Morone americana), yellow perch (Perca flavescens), and smallmouth bass (Micropterus dolomieui) were acclimated to 5 and 20 °C. There was an increase in ventricle mass relative to body mass in smallmouth bass only following acclimation to 5° C. Maximal in vitro activities of hexokinase, citrate synthase, carnitine acyl CoA transferase (with palmitoyl CoA, palmitoleoyl CoA, and oleoyl CoA as substrates), and total ATPase were assessed in crude heart homogenates. Tissues removed from warm-acclimated animals were tested at 20 and 5 °C; tissues removed from cold-acclimated animals were assessed at 5 °C. Acute temperature transitions were associated with decreases in the activities of hexokinase (Q10 ≈ 1.8), citrate synthase (Q10 ≈ 1.4), and ATPase (Q10 ≈ 1.7). The impact of temperature on carnitine acyl CoA transferases was generally less severe. This suggests that maximal fatty acid oxidation is conserved better than glucose oxidation during a warm to cold transition. Maximal enzyme activities were generally unaffected by the acclimation regime, with the exception of that of carnitine acyl CoA transferase in white perch heart. The substantial increase in carnitine acyl CoA transferase activity when unsaturated CoA derivatives were provided as substrate suggests an increased capacity to oxidize unsaturated fatty acids at low temperature following an acclimation period. Attempts to sustantiate this contention by offering labelled oleic acid to ventricle sheets were thwarted by a high rate of incorporation into the total lipid pool.

Seasonal patterns in trap catches of the crayfish Cambarus bartoni and Orconectes virilis in six south-central Ontario lakes

1993 ◽  
Vol 71 (6) ◽  
pp. 1136-1145 ◽  
Author(s):  
Keith M. Somers ◽  
Roger H. Green
Keyword(s):  
Water Temperature ◽  
Relative Abundance ◽  
Sampling Period ◽  
Smallmouth Bass ◽  
Orconectes Virilis ◽  
Scuba Divers ◽  
South Central ◽  
Baited Traps ◽  
Trap Catches ◽  
Physical And Chemical

Crayfish were trapped in six south-central Ontario lakes to examine seasonal changes in estimates of relative abundance. Baited-trap catches of Cambarus bartoni and Orconectes virilis correlated with changes in water temperature. Cambarid catches increased in the spring until a midsummer maximum, but dropped suddenly as the water temperature began to fall in August. Ovigerous (i.e., egg-bearing) females and recently moulted males were captured by SCUBA divers in August. Trap catches increased, once breeding and moulting periods concluded, and subsequently decreased as water temperatures continued to drop in the autumn. In contrast, catches of male O. virilis increased in the spring and remained relatively constant throughout the summer until water temperatures fell in September. Catches of female O. virilis peaked somewhat later in the summer and then gradually declined in the early fall. Although the two species and the two sexes differed in the length of the midsummer sampling period when trap catches were relatively constant, similar seasonal trends among lakes suggest that midsummer trap catches can be used to estimate crayfish relative abundance. Other factors, such as the presence of smallmouth bass (Micropterus dolomieui), lake physical and chemical characteristics, and the number of co-occurring crayfish species also correlated with trap catches. Both the presence of bass and the number of co-occurring species of crayfish probably affect crayfish behaviour and activity, thereby reducing catches in baited traps, but not necessarily affecting actual population abundance. Comparisons of relative abundance based on catches from baited traps must control for these seasonal behavioural, and environmental factors.

Comparison of Diets of Smallmouth Bass (Micropterus dolomieui) Collected by Sport Fishing and by Electrofishing

1995 ◽  
Vol 10 (4) ◽  
pp. 393-398 ◽  
Author(s):  
Lyne Marie Ross ◽  
J. Savitz ◽  
G. Funk
Keyword(s):  
Smallmouth Bass ◽  
Sport Fishing ◽  
Micropterus Dolomieui
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