Overwinter Regeneration of Clipped Fins in Fingerling Brook Trout

Mears, Harold C.

doi:10.1577/1548-8659(1976)38[73:orocfi]2.0.co;2

Cited by 3 publications

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“…The fin regeneration values found in this study indicate that clipped pectoral and anal fins may regenerate to such an extent that these marks are not recognizable if used in long-term studies. Mears (1976b) suggests that removal of the anal fin may not be a reliable marking method for use in studies where fishermen or inexperienced workers are expected to be able to recognize the marks.…”

Section: Discussionmentioning

confidence: 99%

Effects of different kinds of fin-clipping on over-winter survival and growth of fingerling brown trout, Salmo trutta L., stocked in small streams in Norway

Johnsen

Ugedal

1988

Aquaculture Res

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Abstract. Nine thousand fingerling (0+) brown trout, Salmo trutta L., (size 50–90 mm) were fin‐clipped in six different ways and released in small streams in September 1984 and 1985. A total of 2625 fish were recaptured by electrofishing the year after stocking. Differences in survival between fin‐clip groups were found in one out of eight stockings. No growth differences were found among the several groups. Pectoral and anal fins regenerated most, while adipose fins regenerated least. Single fin‐clipping is a recommended marking method for fingerling brown trout during short‐term studies. Multiple fin‐clips may result in lower survival. Regeneration of fins, especially pectoral and anal fins, make the clipping of these fins less adapted to long‐term investigations.

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Section: Discussionmentioning

confidence: 99%

Effects of different kinds of fin-clipping on over-winter survival and growth of fingerling brown trout, Salmo trutta L., stocked in small streams in Norway

Johnsen

Ugedal

1988

Aquaculture Res

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“…Fin mutilation as a method of marking has a long history in the Columbia River (Rich 1927). Fins, other than adipose fins, can regenerate (Mears 1976), in some cases at rates as high as 46 to 53 percent in 3 months (Coon&s et al 1990). Increased mortality in fin-clipped fish has been reported as well (Nicola and Cordone 1973 ;Mears and Hatch 1976).…”

Section: Fin Climinqmentioning

confidence: 99%

Yakima Hatchery Experimental Design : Annual Progress Report.

Busack¹,

Knudsen²,

Marshall³

1991

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This progress report details the results and status of Washington Department of Fisheries' (WDF) pre-facility monitoring, research, and evaluation efforts, through May 1991, designed to support the development of an Experimental Design Plan (EDP) for the Yakima/Klickitat Fisheries Project (YKFP), previously termed the Yakima/Klickitat Production Project (YKPP or Y/KPP). This prefacility work has been guided by planning efforts of various research and quality control teams of the project that are annually captured as revisions to the experimental design and pre-facility work plans. The current objectives are as follows: 0 Develop genetic monitoring and evaluation approach for the Y/KPP. b definegeneticallydistinctsub-populations of steelhead and chinook in the Yakima and Klickitat River basins. b assess genetic risk of various project options. b develop experimental design and monitoring and evaluation strategies to evaluate longterm genetic change and associated reproductive performance.

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Performance of Domestic, Hybrid, and Wild Strains of Brook Trout, Salvelinus fontinalis, after Stocking: the Impact of Intra- and Interspecific Competition

Lachance¹,

Magnan²

1990

Can. J. Fish. Aquat. Sci.

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Wild and hybrid strains of brook trout, Salvelinus fontinalis, showed better rates of recovery (by angling) and yield (kilograms of fish recovered per kilogram planted) than a domestic strain, during the 2 yr following planting, in six small oligotrophic lakes of the Laurentian Shield. Native brook trout and white sucker, Catostomus commersoni, had a significant impact on planted brook trout. Recovery, percent of increment in weight and yield of each planted strain were inversely correlated with (1) the relative abundance of native brook trout, and (2) the occurrence of white sucker, supporting hypotheses of intra- and interspecific competition. Furthermore, the response variables were also inversely correlated with the number of potential competitors, indicating that the impact of native brook trout and white sucker was additive. The recovery in number of planted trout (both years and all strains) was approximately four times higher in lakes with effectively no competitors than in lakes containing both white sucker and native brook trout; the increase in weight was nearly three times higher, and the yield was more than nine times higher. The performances of planted fish were intermediate in the lake containing only native brook trout as competitor.

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Overwinter Regeneration of Clipped Fins in Fingerling Brook Trout

Cited by 3 publications

References 0 publications

Effects of different kinds of fin-clipping on over-winter survival and growth of fingerling brown trout, Salmo trutta L., stocked in small streams in Norway

Effects of different kinds of fin-clipping on over-winter survival and growth of fingerling brown trout, Salmo trutta L., stocked in small streams in Norway

Yakima Hatchery Experimental Design : Annual Progress Report.

Performance of Domestic, Hybrid, and Wild Strains of Brook Trout, Salvelinus fontinalis, after Stocking: the Impact of Intra- and Interspecific Competition

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