Effect of Pond Formation on Catches of Brook Trout from a Coastal Stream System

1968 ◽  
Vol 25 (2) ◽  
pp. 209-238
Author(s):  
M. W. Smith ◽  
J. W. Saunders
Keyword(s):  
Brook Trout ◽  
Prince Edward Island ◽  
Fishing Effort ◽  
Period Length ◽  
Stream System

An artificial 5-acre (2.0-ha) pond formed on Ellerslie Brook, Prince Edward Island, initially resulted in an increased fishing effort and yield of brook trout to anglers from the stream system — estuary, pond, and stream. The increased effort and catch were not sustained. After 4 years, annual effort and yield of trout by number from the system were not significantly different from the pre-pond period. Length of angled trout and yield by weight declined significantly. Sea-running trout, prized by anglers, were largely eliminated. Only when planted into the estuary did hatchery-reared trout make good contributions to the anglers' catches.

Influence of Pond Formation on Brook Trout Movements and Angling Success

1963 ◽  
Vol 20 (2) ◽  
pp. 327-345
Author(s):  
M. W. Smith
Keyword(s):  
Food Supply ◽  
Brook Trout ◽  
Prince Edward Island ◽  
Salvelinus Fontinalis ◽  
Early Summer ◽  
Hydrographic Conditions

A 13-acre pond was formed at head of tide on Wilmot Stream, Prince Edward Island, to hold brook trout (Salvelinus fontinalis) moving between stream and saltwater estuary for greater availability to anglers. Trout continued to move between pond and estuary via an artificial outlet, predominantly during the spring and early summer. Improved angling conditions resulted in capture of 8,215 trout from pond and upper reaches of estuary at rate of 1.2 per rod-hour over three angling seasons. Shallowness of water limited trout-holding capacity of the pond and curtailed better angling success. Other hydrographic conditions and food supply in the pond were favourable for brook trout.

Movements of Brook Trout in Relation to an Artificial Pond on a Small Stream

1967 ◽  
Vol 24 (8) ◽  
pp. 1743-1761 ◽  
Author(s):  
M. W. Smith ◽  
J. W. Saunders
Keyword(s):  
Brook Trout ◽  
Prince Edward Island ◽  
Salt Water ◽  
Seasonal Pattern ◽  
Small Stream ◽  
Tidal Pool ◽  
Artificial Pond

A 20-year study showed that forming a pond near the mouth of Ellerslie Brook, Prince Edward Island, did not change the seasonal pattern of brook trout movements between fresh- and salt water. Delay in movements of trout through the pond and a tidal pool below the dam resulted in heavy natural and angling mortalities in those areas. Movements between fresh- and salt water were almost eliminated. Natural seeding of stream above pond was not demonstrably affected.

Correction of Relative Fish Abundance Estimates from Catch Data for Variable Fishing Intensity during Lake Surveys

1989 ◽  
Vol 46 (6) ◽  
pp. 1022-1025 ◽  
Author(s):  
P. M. Ryan ◽  
J. J. Kerekes
Keyword(s):  
Brook Trout ◽  
Unit Area ◽  
Fishing Effort ◽  
Fish Abundance ◽  
Lake Area ◽  
Catch Per Unit Effort ◽  
Fixed Amount ◽  
Catch Data ◽  
Abundance Estimates ◽  
Lake Size

Six small Newfoundland lakes were fished with gillnets over a 3–6 yr period in a manner typical of standard lake surveys where surveyors have a fixed amount of gear available, but lake size varies. Catch and effort data for brook trout (Salvelinus fontinalis) were examined for the purpose of selecting an appropriate measure of the relative abundance of trout. Fishing effort was not a function of lake area but fishing intensity or fishing effort per unit area varied inversely with lake area. Brook trout yield (kilograms per hectare) was positively related to fishing intensity Catch per unit effort (kilograms) of brook trout was inversely related to fishing intensity. Methods are suggested to correct for the bias in catch data resulting from variable fishing intensity during lake surveys and improve the recognition of differences in relative fish abundance.

Changes in a Stream Population of Trout Associated with Increased Silt

1965 ◽  
Vol 22 (2) ◽  
pp. 395-404 ◽  
Author(s):  
J.W. Saunders ◽  
M.W. Smith
Keyword(s):  
Water Temperature ◽  
Brook Trout ◽  
Prince Edward Island ◽  
Salvelinus Fontinalis

Low standing crops of brook trout, Salvelinus fontinalis, were closely associated with silting in Ellerslie Brook, Prince Edward Island, and appeared to result from the destruction of hiding places. Spawning was also curtailed by silting. Following scouring, trout stocks soon increased. The remarkable adaptability of trout to silting, in a habitat with favourable flow and water temperature, was illustrated.

Phosphorus Enrichment of Drainage Waters from Farm Lands

1959 ◽  
Vol 16 (6) ◽  
pp. 887-895 ◽  
Author(s):  
M. W. Smith
Keyword(s):  
Brook Trout ◽  
Prince Edward Island ◽  
Phosphorus Content ◽  
Salvelinus Fontinalis ◽  
Agricultural Area ◽  
Cultivated Land ◽  
Phosphorus Enrichment ◽  
Drainage Waters

Excellent production of brook trout (Salvelinus fontinalis) and drainage from a stabilized agricultural area are associated in the streams and ponds of Prince Edward Island. Determinations of phosphorus content of Ellerslie Brook, P.E.I., showed major contributions from commercial fertilizers applied to cultivated land. The inference appears valid that commercial land fertilizers are an important factor in maintaining high trout production, and may enhance oyster production in shallow saltwater inlets at the mouths of the streams.

Mass Mortalities and Behaviour of Brook Trout and Juvenile Atlantic Salmon in a Stream Polluted by Agricultural Pesticides

1969 ◽  
Vol 26 (3) ◽  
pp. 695-699 ◽  
Author(s):  
J. W. Saunders
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Brook Trout ◽  
Prince Edward Island ◽  
Salvelinus Fontinalis ◽  
Biological Indicator ◽  
Abnormal Behaviour ◽  
Agricultural Pesticides ◽  
Juvenile Atlantic Salmon ◽  
Mass Mortalities

After accidental spillage of the agricultural pesticides nabam and endrin into Mill River, Prince Edward Island, there were extensive mortalities among brook trout (Salvelinus fontinalis (Mitchill)) and juvenile Atlantic salmon (Salmo salar Linnaeus). Surviving trout and salmon showed abnormal behaviour including unseasonal downstream movements in summer and unusual response to an electric field. The abnormal behaviour could provide a useful biological indicator of pollution by the pesticides.

scholarly journals Movement patterns of Brook Trout in a restored coastal stream system in southern Massachusetts

2015 ◽  
Vol 25 (3) ◽  
pp. 360-375 ◽  
Author(s):  
Erin L. Snook ◽  
Benjamin H. Letcher ◽  
Todd L. Dubreuil ◽  
Joseph Zydlewski ◽  
Matthew J. O'Donnell ◽  
...  
Keyword(s):  
Brook Trout ◽  
Movement Patterns ◽  
Stream System

Movements of Brook Trout, Salvelinus fontinalis (Mitchill), Between and Within Fresh and Salt Water

1958 ◽  
Vol 15 (6) ◽  
pp. 1403-1449 ◽  
Author(s):  
M. W. Smith ◽  
J. W. Saunders
Keyword(s):  
Water Level ◽  
Coastal Waters ◽  
Brook Trout ◽  
Prince Edward Island ◽  
Salt Water ◽  
Early Summer ◽  
Water Levels ◽  
Preferred Temperature ◽  
Living Space ◽  
June July

Major movements of trout into Ellerslie Brook, Prince Edward Island, were in April, June–July, and November; and out in May and October to early January. Some movements were preponderantly in one direction; others involved trout making simultaneous movements up- and downstream. Mean length of trout in movements was 16.8 cm., predominantly age II. Trout were short-lived and few survived to make repeated movements. About 50% of trout making return movements did so within a month. Percentage of Ellerslie-reared trout which ran to salt water varied from 12 to 35 over a 6-year period. There was inconclusive evidence of a heritable propensity to sea-running. After descending into the estuary, few trout left for open coastal waters. Short-distance movements resulted in population shifts in the brook in summer which were not detected in traps at mouth of stream.Movements of trout between fresh and salt water were very closely associated with rise and fall of the water level in the brook, but not with height of water. Movements in spring and early summer were into preferred temperature. Although marked changes in water level occurred, few trout moved in winter after becoming acclimated to a water temperature of 0 °C. or in summer when brook was at temperature of final preferenda. Continuance of movement for some time after 0 °C. was reached seemed related to slow rate of acclimation. Movements were both random and directed. For most movements trout appeared conditioned by temperature and stimulated by changing water levels. Trout moved largely at night. Other influencing factors were living space, maturation and spawning. Turbidity, salinity, tides, and handling were without apparent effects.

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