Effects of size and sex on swimming performance and metabolism of invasive mosquitofish Gambusia holbrooki

2016 ◽  
Vol 26 (3) ◽  
pp. 424-433 ◽  
Author(s):  
Pao Srean ◽  
David Almeida ◽  
Francesc Rubio-Gracia ◽  
Yiping Luo ◽  
Emili García-Berthou
Keyword(s):  
Swimming Performance ◽  
Gambusia Holbrooki

scholarly journals Generalist–specialist trade-off during thermal acclimation

2015 ◽  
Vol 2 (1) ◽  
pp. 140251 ◽  
Author(s):  
Frank Seebacher ◽  
Varlérie Ducret ◽  
Alexander G. Little ◽  
Bart Adriaenssens
Keyword(s):  
Phenotypic Plasticity ◽  
Cold Acclimation ◽  
Environmental Variability ◽  
Swimming Performance ◽  
Gambusia Holbrooki ◽  
Trade Off ◽  
Performance Curves ◽  
Time Of Year ◽  
The Cost ◽  
Acclimation Treatment

The shape of performance curves and their plasticity define how individuals and populations respond to environmental variability. In theory, maximum performance decreases with an increase in performance breadth. However, reversible acclimation may counteract this generalist–specialist trade-off, because performance optima track environmental conditions so that there is no benefit of generalist phenotypes. We tested this hypothesis by acclimating individual mosquitofish ( Gambusia holbrooki ) to cool and warm temperatures consecutively and measuring performance curves of swimming performance after each acclimation treatment. Individuals from the same population differed significantly in performance maxima, performance breadth and the capacity for acclimation. As predicted, acclimation resulted in a shift of the temperature at which maximal performance occurred. Within acclimation treatments, there was a significant generalist–specialist trade-off in responses to acute temperature change. Surprisingly, however, there was also a trade-off across acclimation treatments, and animals with greater capacity for cold acclimation had lower performance maxima under warm conditions. Hence, cold acclimation may be viewed as a generalist strategy that extends performance breadth at the colder seasons, but comes at the cost of reduced performance at the warmer time of year. Acclimation therefore does not counteract a generalist–specialist trade-off and, at least in mosquitofish, the trade-off seems to be a system property that persists despite phenotypic plasticity.

Differences in swimming performance and energetic costs between an endangered native toothcarp ( Aphanius iberus ) and an invasive mosquitofish ( Gambusia holbrooki )

2019 ◽  
Vol 29 (2) ◽  
pp. 230-240 ◽  
Author(s):  
Francesc Rubio‐Gracia ◽  
Emili García‐Berthou ◽  
Dani Latorre ◽  
Ramon Moreno‐Amich ◽  
Pao Srean ◽  
...  
Keyword(s):  
Swimming Performance ◽  
Gambusia Holbrooki ◽  
Energetic Costs

Annotated сhecklist of the freshwater fishes of Iran

2010 ◽  
Vol 19 (2) ◽  
pp. 361-386 ◽  
Author(s):  
H.R. Esmaeili ◽  
B.W. Coad ◽  
A. Gholamifard ◽  
N. Nazari ◽  
A. Teimory
Keyword(s):  
New Species ◽  
Exotic Species ◽  
Endemic Species ◽  
Freshwater Fishes ◽  
Gambusia Holbrooki

The confirmed freshwater fishes of Iran comprise 202 species in 104 genera, 28 families, 17 orders and 3 classes found in 19 different basins. There are also 23 species whose presence in Iranian waters needs confirmation by specimens. The most diverse order is the Cypriniformes with 120 confirmed species (59.4%) followed by Perciformes with 28 species (13.9%), Cyprinodontiformes (10 species, 5.0%), Clupeiformes (9 species, 4.5%), Salmoniformes (7 species, 3.5%), Mugiliformes and Siluriformes each with 6 species (3.0%), Acipenseriformes (5 species, 2.5%), Gasterosteiformes (3 species, 1.5%), and 8 other orders each with one species (0.5%). New species are still being discovered, 7 described in 2009, while others are being resurrected from synonymy, newly recorded from Iran, or exotic species newly established. Some taxonomic problems remain and are commented on briefly. Thirty-nine endemic species (19.3%) in 6 families and 23 exotic species (11.4%) in 8 families are listed here. The mosquitofish, Gambusia holbrooki Girard, 1859 is the most widespread exotic species.

Analysis of Correlations between Swimming Performance and the Inspiratory Muscle Capacity

2020 ◽  
Vol 29 (5) ◽  
pp. 1361-1371
Author(s):  
Kwang-Myong Kim ◽  
Hyun-Ju Kim ◽  
Jong-Hwan Choi
Keyword(s):  
Swimming Performance ◽  
Inspiratory Muscle

Impaired Swimming Performance of Acid-exposed Arctic Charr, Salvelinus Alpinus L.

1988 ◽  
Vol 23 (2) ◽  
pp. 301-307 ◽  
Author(s):  
L.A. Hunter ◽  
E. Scherer
Keyword(s):  
Dose Response ◽  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Swimming Performance ◽  
Control Level ◽  
Ventilation Rates

Abstract Arctic charr (Salvelinus alpinus L.) were exposed to five levels of acidity between pH 6 and pH 3.8. Swimming performance as determined by critical swimming speeds was 67.5 cm · sࢤ1 or 4.4 body lengths per second for untreated fish (pH 7.8). Performance declined sharply below pH 4.5; at pH 3.8 it was reduced by 35% after 7 days of exposure. Tailbeat frequencies and ventilation rates showed no dose-response effects. At swimming speeds between 20 and 50 cm · sࢤ1, ventilation rates at all levels of acidity were higher than at the control level.

Acute Toxicity Testing with Juvenile White Sturgeon (Acipenser transmontanus)

1998 ◽  
Vol 33 (1) ◽  
pp. 95-110 ◽  
Author(s):  
W.R. Bennett ◽  
A.P. Farrell
Keyword(s):  
Acute Toxicity ◽  
Swimming Performance ◽  
Juvenile Fish ◽  
Toxicity Testing ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Toxicity Tests ◽  
Fraser River ◽  
Acute Toxicity Tests ◽  
Acute Toxicity Testing

Abstract The primary goal of this study was to investigate the possibility of using early life stages of white sturgeon (Acipenser transmontanus) (eggs, larvae and fry) as a species relevant to the Fraser River, B.C., for the acute and sublethal toxico-logical testing of forest industry effluents. Here we report the first successful acute toxicity tests for 8-day-old larvae and 42-day-old fry exposed to several chemicals known to be released into the Fraser River (i.e., 6 monochlorovanillin [6 MVAN], 4,5 dichloroguaiacol [4,5 DCG], 4,5 dichlorocatechol [4,5 DCAT], pentachlorophenol [PCP], and didecyldimethylammonium chloride [DDAC]). In most cases, white sturgeon fry were at the lower end of the range for acute toxicity values for chlorinated phenolic compounds, when compared with other juvenile fish species, and they were extremely sensitive to DDAC. The larval stage was usually more sensitive than the fry stage. Acute toxicity tests with fertilized eggs were unsuccessful. A postexposure growth study was inconclusive because neither control nor toxicant-exposed larvae and fry withstood the additional handling used for measuring body mass. At 62-days-old, fry were more tolerant of handling. This allowed measurement of their swimming performance. Although we have concerns about the reliability of using larvae for acute toxicity testing at this time, 60-day-old white sturgeon fry would appear to be both a sensitive and relevant species for assessing environmental impacts relevant to the Fraser River.

Swimming Performance and Metabolism of Cultured Golden Shiners

2009 ◽  
Vol 71 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Rachel V. Beecham ◽  
Philip R. Pearson ◽  
Susan B. LaBarre ◽  
C. Douglas Minchew
Keyword(s):  
Swimming Performance ◽  
Golden Shiners
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