Seasonal changes in the critical thermal maxima of fantail (Etheostoma flabellare), greenside (Etheostoma blennioides), and rainbow (Etheostoma caeruleum) darters

1985 ◽  
Vol 63 (7) ◽  
pp. 1629-1633 ◽  
Author(s):  
Ihor Hlohowskyj ◽  
Thomas E. Wissing
Keyword(s):  
Seasonal Changes ◽  
Acclimation Temperature ◽  
Seasonal Differences ◽  
Etheostoma Flabellare ◽  
Significant Relationships ◽  
Critical Thermal Maxima ◽  
Etheostoma Blennioides ◽  
Fantail Darter ◽  
Rainbow Darter ◽  
Etheostoma Caeruleum

Seasonal critical thermal maxima (CTMax) were determined for greenside (Etheostoma blennioides), fantail (Etheostoma flabellare), and rainbow (Etheostoma caeruleum) darters. Mean CTMax values for field-acclimatized greenside darters ranged from 26.2 °C in March to 35.1 °C in September. The values for fantail and rainbow darters were 30.8–36.0 °C (March–July) and 30.0–36.4 °C (April–July), respectively. CTMax values for the three species were significantly correlated (P < 0.05) with field water temperature (greenside darter, r = 0.970; rainbow darter, r = 0.964; fantail darter, r = 0.968). Fish acclimated at 10 and 20 °C in the laboratory exhibited significant seasonal changes in CTMax, with the highest values occurring in the summer. Except for fantail darters tested in summer, the three species showed significant relationships between CTMax and acclimation temperature. Seasonal differences were also observed in the slopes of the relationships between CTMax and acclimation temperature. The highest slopes occurred in spring, autumn, or both. Differences in the tolerance of darters to high temperatures and adjustment of tolerance to high temperature may influence their distributions in streams.

Gill Flukes (Monogenoidea) from the Rainbow Darter,Etheostoma caeruleum(Perciformes: Percidae): New Distributional Records for Arkansas, U.S.A.

2017 ◽  
Vol 84 (2) ◽  
pp. 189-193
Author(s):  
Chris T. McAllister ◽  
Donald G. Cloutman ◽  
Henry W. Robison ◽  
Thomas J. Fayton
Keyword(s):  
Rainbow Darter ◽  
Etheostoma Caeruleum

Changes in the abundance of small littoral-zone fishes in Lake Mendota, Wisconsin

1989 ◽  
Vol 67 (12) ◽  
pp. 2910-2916 ◽  
Author(s):  
John Lyons
Keyword(s):  
Littoral Zone ◽  
Myriophyllum Spicatum ◽  
Single Species ◽  
Lake Mendota ◽  
Nearshore Area ◽  
Etheostoma Flabellare ◽  
Fundulus Notatus ◽  
Environmentally Sensitive ◽  
Fantail Darter ◽  
Banded Killifish

Since 1900, major changes have occurred in the assemblage of small littoral-zone fishes (maximum total length < 150 mm; usually encountered in the nearshore area) that inhabits Lake Mendota, Wisconsin. A diverse assemblage that included several environmentally sensitive species has been replaced by an assemblage dominated by a single species, the brook silverside (Labidesthes sicculus), whose abundance fluctuates dramatically from year to year. Between 1900 and 1981, eight species, the pugnose shiner (Notropis anogenus), common shiner (Notropis cornutus), blackchin shiner (Notropis heterodon), blacknose shiner (Notropis heterolepis), tadpole madtom (Noturus gyrinus), banded killifish (Fundulus diaphanus), blackstripe topminnow (Fundulus notatus), and fantail darter (Etheostoma flabellare), disappeared from the lake. The blackchin shiner and banded killifish were the most abundant small littoral-zone species in 1914–1916, and remained common until the late 1960's. Their decline was associated with the invasion and explosive increase in abundance of an exotic macrophyte, the Eurasian water milfoil (Myriophyllum spicatum), in the mid-1960's. The decline and disappearance of the blackchin shiner and banded killifish in three other Wisconsin lakes was also associated with the invasion of Eurasian water milfoil. Changes in the assemblage of small littoral-zone fishes in Lake Mendota indicate environmental degradation in the nearshore area, and may have important implications for the entire fish community of the lake.

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