Effects of Diurnal Fluctuations of Dissolved Oxygen on the Growth of Brook Trout

1968 ◽  
Vol 25 (3) ◽  
pp. 579-584 ◽  
Author(s):  
Walter R. Whitworth
Keyword(s):  
Dissolved Oxygen ◽  
Brook Trout ◽  
Diurnal Fluctuations

not available

scholarly journals Hydrogeochemical controls on brook trout spawning habitats in a coastal stream

2018 ◽  
Vol 22 (12) ◽  
pp. 6383-6398 ◽  
Author(s):  
Martin A. Briggs ◽  
Judson W. Harvey ◽  
Stephen T. Hurley ◽  
Donald O. Rosenberry ◽  
Timothy McCobb ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Brook Trout ◽  
Groundwater Discharge ◽  
Cape Cod ◽  
Valley Bottom ◽  
Groundwater Flux ◽  
Peat Deposits ◽  
Fish Spawning ◽  
Meander Bends ◽  
Spawning Habitats

Abstract. Brook trout (Salvelinus fontinalis) spawn in fall and overwintering egg development can benefit from stable, relatively warm temperatures in groundwater-seepage zones. However, eggs are also sensitive to dissolved oxygen concentration, which may be reduced in discharging groundwater (i.e., seepage). We investigated a 2 km reach of the coastal Quashnet River in Cape Cod, Massachusetts, USA, to relate preferred fish spawning habitats to geology, geomorphology, and discharging groundwater geochemistry. Thermal reconnaissance methods were used to locate zones of rapid groundwater discharge, which were predominantly found along the central channel of a wider stream valley section. Pore-water chemistry and temporal vertical groundwater flux were measured at a subset of these zones during field campaigns over several seasons. Seepage zones in open-valley sub-reaches generally showed suboxic conditions and higher dissolved solutes compared to the underlying glacial outwash aquifer. These discharge zones were cross-referenced with preferred brook trout redds and evaluated during 10 years of observation, all of which were associated with discrete alcove features in steep cutbanks, where stream meander bends intersect the glacial valley walls. Seepage in these repeat spawning zones was generally stronger and more variable than in open-valley sites, with higher dissolved oxygen and reduced solute concentrations. The combined evidence indicates that regional groundwater discharge along the broader valley bottom is predominantly suboxic due to the influence of near-stream organic deposits; trout show no obvious preference for these zones when spawning. However, the meander bends that cut into sandy deposits near the valley walls generate strong oxic seepage zones that are utilized routinely for redd construction and the overwintering of trout eggs. Stable water isotopic data support the conclusion that repeat spawning zones are located directly on preferential discharges of more localized groundwater. In similar coastal systems with extensive valley peat deposits, the specific use of groundwater-discharge points by brook trout may be limited to morphologies such as cutbanks, where groundwater flow paths do not encounter substantial buried organic material and remain oxygen-rich.

Seasonal Depth Distributions of Landlocked Atlantic Salmon, Brook Trout, Landlocked Alewives, and American Smelt in a Small Lake

1970 ◽  
Vol 27 (9) ◽  
pp. 1656-1661 ◽  
Author(s):  
Robert T. Lackey
Keyword(s):  
Atlantic Salmon ◽  
Dissolved Oxygen ◽  
Salmo Salar ◽  
Deep Water ◽  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Osmerus Mordax ◽  
Alosa Pseudoharengus ◽  
Lake Bottom ◽  
Depth Distributions

Seasonal depth distributions of landlocked Atlantic salmon (Salmo salar), brook trout (Salvelinus fontinalis), landlocked alewives (Alosa pseudoharengus), and American smelt (Osmerus mordax) were determined monthly in Echo Lake, Maine, using vertical and horizontal gillnets.Salmon were wide-ranging fish, but generally not captured in very shallow or very deep water. Brook trout were primarily an inshore species, not often captured in water deeper than 25 ft, and nearly always found close to the lake bottom. The majority of captured alewives were taken from shallow to middepths (0–30 ft) in summer and fall and in deep water during winter and spring. Smelts were widely distributed, but the majority were captured in water deeper than 30 ft every month.No clear temperature or dissolved oxygen preference could be shown for any of the four species.

Effects of Fluctuations of Lead, Temperature, and Dissolved Oxygen on the Growth of Brook Trout

1969 ◽  
Vol 26 (9) ◽  
pp. 2493-2501 ◽  
Author(s):  
D. Dorfman ◽  
W. R. Whitworth
Keyword(s):  
Dissolved Oxygen ◽  
Brook Trout ◽  
Apparent Effect ◽  
Diel Fluctuations

Slug doses of lead administered once a day 5 days/week to brook trout exposed to simultaneous diel fluctuations of dissolved oxygen and temperatures showed that concentrations of 25 mg/liter of lead reduced growth. Concentrations of 15 mg/liter had little apparent effect and concentrations of 10 mg/liter had no deleterious effects on growth.

Effects of Oxygen in Relation to Temperature on the Development of Embryos of Brook Trout and Rainbow Trout

1966 ◽  
Vol 23 (8) ◽  
pp. 1121-1134 ◽  
Author(s):  
E. T. Garside
Keyword(s):  
Rainbow Trout ◽  
Dissolved Oxygen ◽  
Late Stage ◽  
Brook Trout ◽  
Control Level ◽  
Salmo Gairdneri ◽  
Pertinent Literature ◽  
Stage Of Development ◽  
The Times ◽  
Increasing Temperature

Embryos of the brook trout (Salvelinus fontinalis Mitchill) were incubated in reduced levels of dissolved oxygen of approximately 2.5 ppm, 3.5 ppm, 4.5 ppm, and a control level near air-saturation (10 ppm) at each four temperatures, 2.5, 5.0, 7.5, and 10.0 C, from fertilization to a late stage of development. Embryos of the rainbow trout (Salmo gairdneri Richardson) were incubated in a similar experiment at levels of oxygen approximating 2.5 and 3.5 ppm and a level near air-saturation at each of the four temperatures, to a similar, late stage of development. A third small experiment was conducted in which embryos of rainbow trout were incubated at 12.5, 15.0, and 17.5 C, at a level of dissolved oxygen near air-saturation. In all instances for both species the velocity of embryonic development, measured by the times required to attain a series of selected embryonic stages, was accelerated by increasing temperature. The velocity of development was increasingly retarded by progressively lower levels of dissolved oxygen. The times required to affect hatching and the lengths of the periods of hatching were similarly influenced by temperature and by the level of dissolved oxygen. These findings are discussed in the light of pertinent literature.

scholarly journals Working backwards from streambed thermal anomalies: hydrogeologic controls on preferential brook trout spawning habitat in a coastal stream

2018 ◽  
Author(s):  
Martin A. Briggs ◽  
Judson W. Harvey ◽  
Stephen T. Hurley ◽  
Donald O. Rosenberry ◽  
Timothy McCobb ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Brook Trout ◽  
Short Circuit ◽  
Groundwater Discharge ◽  
Cape Cod ◽  
Spawning Habitat ◽  
Valley Bottom ◽  
Thermal Anomalies ◽  
Groundwater Flux ◽  
Meander Bends

Abstract. Brook trout (Salvelinus fontinalis) spawn in fall, and overwintering egg development can benefit from stable, relatively warm temperatures in groundwater seepage zones. However, eggs also are sensitive to dissolved oxygen concentration, which may be reduced in discharging groundwater. We investigated a 2-km reach of the coastal Quashnet River, Cape Cod, Massachusetts, USA, to relate preferred fish spawning habitat to geology, geomorphology, and groundwater discharge. Thermal reconnaissance methods were used to locate zones of rapid groundwater discharge, which were predominantly found along the center channel of a wider stream valley section. Pore-water chemistry and temporal vertical groundwater flux were measured at a subset of these zones during field campaigns over several seasons. Seepage zones in open valley sub-reaches generally showed suboxic conditions and higher dissolved solutes compared to the underlying glacial outwash aquifer. These discharge zones were cross-referenced with preferred brook trout redds, evaluated during 10 yr of observation, all of which were associated with discrete alcove features in steep cut banks where stream meander bends intersect the glacial valley walls. Seepage in these repeat spawning zones was generally stronger and more variable than open valley sites, with higher dissolved oxygen and reduced solute concentrations. The combined evidence indicates that regional groundwater discharge along the broader valley bottom is predominantly suboxic due to the influence of near-stream organic deposits; trout show no obvious preference for these zones when spawning. However, the meander bends that cut into sandy deposits near the valley walls generate strong, oxic seepage zones that are utilized routinely for redd construction and the overwintering of trout eggs. In similar coastal systems with extensive valley peat deposits, specific use of groundwater discharge points by brook trout may be limited to morphologies such as cut banks where groundwater flowpaths can short circuit buried organic material and remain oxygen rich.

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