Effects of water chemistry variables on gill binding and acute toxicity of cadmium in rainbow trout (Oncorhynchus mykiss): A biotic ligand model (BLM) approach

2008 ◽  
Vol 148 (4) ◽  
pp. 305-314 ◽  
Author(s):  
Som Niyogi ◽  
Rebecca Kent ◽  
Chris M. Wood
Keyword(s):  
Rainbow Trout ◽  
Acute Toxicity ◽  
Oncorhynchus Mykiss ◽  
Water Chemistry ◽  
Biotic Ligand Model ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Biotic Ligand ◽  
Ligand Model

Acute cadmium biotic ligand model characteristics of laboratory-reared and wild yellow perch (Perca flavescens) relative to rainbow trout (Oncorhynchus mykiss)

2004 ◽  
Vol 61 (6) ◽  
pp. 942-953 ◽  
Author(s):  
S Niyogi ◽  
P Couture ◽  
G Pyle ◽  
D G McDonald ◽  
C M Wood
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Biotic Ligand Model ◽  
Northern Ontario ◽  
Binding Characteristics ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Biotic Ligand ◽  
Ligand Model

This study evaluated the >400-fold tolerance to acute waterborne Cd of a metal-tolerant fish, yellow perch (YP, Perca flavescens), relative to a sensitive model fish, rainbow trout (RBT, Oncorhynchus mykiss), from the perspective of the acute Cd biotic ligand model (BLM). Three-hour gill binding characteristics for Cd and its competitor, Ca, in both species exhibited only small quantitative differences, but gill Cd accumulations at 3 h and 24 h, which were associated with 50% lethality at 96 h (3- and 24-h LA50s), were 52- to 60-fold higher in YP relative to RBT. However, the acute Cd BLM cannot be extended from RBT to YP by simple adjustments of LA50 values because unlike RBT, in YP, LA50s (3 and 24 h) were 26- to 47-fold greater than the capacity of the characterized set of Cd-binding sites. Moreover, 3-h gill Ca and Cd binding characteristics in wild YP, collected from one clean (Geneva) and two metal-contaminated softwater lakes (Hannah and Whitson) around Sudbury region, northern Ontario, revealed that chronic waterborne factors like hardness and Cd preexposure can influence both Cd and Ca binding in fish gills and could have major implications for the future refinement of the acute Cd BLM approach.

Elemental signatures in otoliths of hatchery rainbow trout (Oncorhynchus mykiss): distinctiveness and utility for detecting origins and movement

2009 ◽  
Vol 66 (4) ◽  
pp. 513-524 ◽  
Author(s):  
Daniel K. Gibson-Reinemer ◽  
Brett M. Johnson ◽  
Patrick J. Martinez ◽  
Dana L. Winkelman ◽  
Alan E. Koenig ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Water Chemistry ◽  
Fisheries Management ◽  
Valuable Insight ◽  
Otolith Chemistry ◽  
Considerable Potential ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
The Relationship ◽  
Ambient Levels

Otolith chemistry in freshwater has considerable potential to reveal patterns of origin and movement, which would benefit traditional fisheries management and provide a valuable tool to curb the spread of invasive and illicitly stocked species. We evaluated the relationship between otolith and water chemistry for five markers (Ba/Ca, Mn/Ca, Sr/Ca, Zn/Ca, and 87Sr/86Sr) in rainbow trout ( Oncorhynchus mykiss ) using the existing hatchery system in Colorado and Wyoming, USA, to provide controlled, seminatural conditions. Otolith Ba/Ca, Sr/Ca, and 87Sr/86Sr reflected ambient levels, whereas Mn/Ca and Zn/Ca did not. Using only the markers correlated with water chemistry, we classified fish to their hatchery of origin with up to 96% accuracy when element and isotope data were used together. Large changes in 87Sr/86Sr were evident in otolith transects, although subtler changes in Sr/Ca were also detectable. Our results suggest the relatively few otolith markers that reflect ambient chemistry can discriminate among locations and track movements well enough to provide valuable insight in a variety of applied contexts.

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