Limnology of a desertic terminal lake, Walker Lake, Nevada, U.S.A.

Cooper, James J.; Koch, David L.

doi:10.1007/bf00046625

Cited by 47 publications

(43 citation statements)

References 27 publications

(38 reference statements)

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“…Moreover, natural and man-made influences are causing some of these saline-alkaline lakes to dessicate, leading to further stress on resident populations (Galat et al, 1981;Cooper & Koch, 1984). These considerations stimulated us to quantify histological changes in organ tissues of Lahontan cutthroat trout living at various salinities and alkalinities.…”

Section: Introductionmentioning

confidence: 99%

Histological changes in the gill, kidney and liver of Lahontan cutthroat trout, Salmo clarki henshawi, living in lakes of different salinity‐alkalinity

Galat

Post

Keefe

et al. 1985

Journal of Fish Biology

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Lahontan cutthroat trout thrive in saline-alkaline lakes, where other trout species often cannot survive. We examined Lahontan cutthroat trout from nine lakes in which salinity and alkalinity ranged from about 90 to 12000mg1-' and 60 to 3500mg1-' as HCO;, respectively, for sublethal histological changes in gill, kidney, and liver tissues. Gill chloride cell hyperplasia, gill lamellar epithelial separation, kidney glomerular swelling, blood congestion in kidneys, and deposition of hyalin droplets in kidney glomeruli, tubules, and hemopoietic tissues were the histological alterations statistically associated with differences in lakewater chemistry.Deposition of hyalin in kidney tubules was the only histological change judged pathological and whose severity appeared sufficient to jeopardize normal organ function. Differences in lakewater chemistry explained nearly 90% of the variability observed in severity of tubular hyalin degeneration, and SO:-was the ion most positively correlated with increasing tubular hyalin. Our results suggest that Lahontan cutthroat trout will develop slight to moderate hyalin degeneration in kidney tubules if stocked into lakes where salinity and SO:-concentrations equal or exceed 5000 mg I-' and 2000 mg 1-', respectively.

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Section: Introductionmentioning

confidence: 99%

Histological changes in the gill, kidney and liver of Lahontan cutthroat trout, Salmo clarki henshawi, living in lakes of different salinity‐alkalinity

Galat

Post

Keefe

et al. 1985

Journal of Fish Biology

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“…In its present state, the Salton Sea is a highly eutrophic lake, characterized by high nutrient concentrations, high algal biomass, high fish productivity, low clarity, frequent very low dissolved oxygen (DO) concentrations, massive fish kills, and noxious odors (Holdren & Montaño, 2002). Nitrogen is a typical limiting nutrient of Great Basin terminal lakes including Pyramid Lake (Galat et al, 1981), Walker Lake (Cooper & Koch, 1984), Big Soda Lake (Cloern et al, 1983), Mono Lake (Herbst, 1998), and Great Salt Lake (Stephens & Gillespie, 1976). However, Holdren & Montaño (2002) reported orthophosphate to be frequently detected below the limit of 0.005 mg l -1 in the Sea, and concluded that algal growth is limited by phosphorus.…”

Section: Introductionmentioning

confidence: 99%

A linked hydrodynamic and water quality model for the Salton Sea

et al. 2008

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A linked hydrodynamic and water quality model was developed and applied to the Salton Sea. The hydrodynamic component is based on the onedimensional numerical model, DLM. The water quality model is based on a new conceptual model for nutrient cycling in the Sea, and simulates temperature, total suspended sediment concentration, nutrient concentrations, including PO À3 4 ; NO À1 3 and NH þ1 4 ; DO concentration and chlorophyll a concentration as functions of depth and time. Existing water temperature data from 1997 were used to verify that the model could accurately represent the onset and breakup of thermal stratification. 1999 is the only year with a near-complete dataset for water quality variables for the Salton Sea. The linked hydrodynamic and water quality model was run for 1999, and by adjustment of rate coefficients and other water quality parameters, a good match with the data was obtained. In this article, the model is fully described and the model results for reductions in external phosphorus load on chlorophyll a distribution are presented.

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“…Mono Lake, California (Melack, 1983), Walker Lake, Nevada (Cooper & Koch, 1984) and Pyramid Lake, Nevada are examples. Continued diversion of water from these lakes is seriously threatening them as viable environments (Hammer, 1983).…”

Section: Introductionmentioning

confidence: 99%

Experimental effects of elevated salinity on three benthic invertebrates in Pyramid Lake, Nevada

Galat

Coleman

Robinson³

1988

Hydrobiologia

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Salinity of Pyramid Lake increased from 3.7 to 5.5%o between 1933 and 1980. Concern over future reductions in overall species richness prompted experiments to assess responses of dominant lake organisms to elevated salinity. Salinity tolerances of three important benthic invertebrates, Hyalella aztecta, Chironomus utahensis, and Heterocypris sp., were tested in controlled laboratory bioassays and also in a semi-natural environment consisting of large (47 m 3 ) mesocosms.Densities of H. azteca in mesocosms were significantly lower at salinities of 8.0 and 11.0%o compared with 5.6%o controls in year one, but not in 8.5%o salinity mesocosms in year two. The 96-h LC 50 for H. azteca was high at 19.5%o. Short-term mortalities of C. utahensis were 100% at salinities of 13.3%o and greater. Fifty-seven percent fewer larvae matured from third to fourth instar at 8.9 than at 5.5%o salinity in 17 day subacute bioassays. Furthermore, larval chironomid densities and emergence of adults from mesocosms were significantly reduced at salinities of 8.0%o and higher compared with controls. Mortality of Heterocypris sp. was 50%o at a salinity of 18.6%o in laboratory bioassays and populations in mesocosms ranged between 40 and 100% lower at salinities of 8.0 and 11.0%o than in controls.Multiple generation mesocosm experiments indicated all three invertebrates were more sensitive to elevated salinity than results of short-term bioassays. Our studies suggest populations of these invertebrates may be reduced from present levels if Pyramid Lake's salinity were to double, although none are expected to be extirpated. Food habit shifts and reduced production of lake fishes are likely consequences of salinity-induced disruption in the benthic invertebrate forage base.

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Limnology of a desertic terminal lake, Walker Lake, Nevada, U.S.A.

Cited by 47 publications

References 27 publications

Histological changes in the gill, kidney and liver of Lahontan cutthroat trout, Salmo clarki henshawi, living in lakes of different salinity‐alkalinity

Histological changes in the gill, kidney and liver of Lahontan cutthroat trout, Salmo clarki henshawi, living in lakes of different salinity‐alkalinity

A linked hydrodynamic and water quality model for the Salton Sea

Experimental effects of elevated salinity on three benthic invertebrates in Pyramid Lake, Nevada

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