Annan Fishery Management Plan - RAFTS

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River Annan DSFB Fisheries Management Plan 2009 – 20145.3.2 Assessment of River HabitatsIn conjunction with the above electrofishingsurveys, habitat surveys are carried out toSFCC standards. Again, these surveys weredesigned to assess juvenile salmon and troutand spawning habitat. A few of the manyhabitat characteristics that may be assessed ateach site include water depth and flow type,substrate type, instream and bankside coverand land use. While there is a standard SFCC habitat survey format to be used atelectrofishing sites there are a wider range of characteristics that can be chosento suit the purpose of the survey. For example, when assessing sites for thepurposes of the Sulwath Connections habitat project, poaching by livestock,bankside erosion and collapse and riparian vegetation were the primarycharacteristics recorded during a walkover survey.Action5.3.2.aDescriptionAnalyse correlations between juvenilesalmonid densities and the habitatcharacteristics assessed at each electrofishingsiteReactive orProactiveProactive5.3.2.b Identify areas in need of habitat enhancement ProactiveTimescaleOngoingOngoing5.3.2.cEnsure all permanent and temporary staff aretrained to SFCC standardsProactiveOngoing45
River Annan DSFB Fisheries Management Plan 2009 – 20145.3.3 Assessment of Adult Salmonid StocksAdult numbers in the catchment are determined by rod catches. Figure 4.3.2shows catches and 5 year rolling averages for both salmon and trout since 1952.Rod catch data will obviously give an underestimation of the true adult stocks inthe catchment. However, long term trends of abundance can be measured fromcatch figures and indeed data analysis has shown that 10 year estimates ofnumbers from rod catches display close correlation with the 10 year trends ofabundance for juveniles taken from the electrofishing surveys in Table 4.3.2.Figure 5.3.23000Rolling Five Year Averages for Sea TroutSea Troutrolling five year averageLinear (rolling five year average)2000Rolling Five Year Averages for SalmonTotaltotal salmon caughtrolling five year averageLinear (rolling five year average)250015002000150010001000500500000604020098969492908886848280787674727068666462605856545206040200989694929088868482807876747270686664626058565452Action5.3.3.a5.3.3.bDescriptionTry to increase the accuracy of salmon andsea trout rod catch figure returns byimplementing the Conservation of Salmon(Collection of Statistics) Regulations (2006,Scottish statutory instrument No. 572).Try to improve knowledge of CPUE used in rodcatch return figures by running fishing eventsReactive orProactiveProactiveProactiveTimescaleAnnuallyAnnually46
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Annan Fishery Management Plan - RAFTS

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