Sustainable Management of wild salmonid stocks - developing best practice strategies
Abstract
Two essential prerequisites need to be fulfilled in order to develop sound management regulations for freshwater fish stocks: (1) Dynamic population processes and annual production rates must be known as well as (2) the reponse of fish stocks on management interventions. In this study an existing longterm dataset (>15 years) on the salmonid stock of a Austrian pre-Alpine limestone stream (the River Ois) in the nature reseve "Ötscher-Dürrenstein" will be analysed in order to precisely describe population dynamics and production rates of brown trout (Salmo trutta), grayling (Thymallus thymallus) and rainow trout (Oncorhynchus mykiss). In a second step angling induced pressure will be estimated by means of comparing the fish stock of an angling section with the stock of a reference section where angling has been abandoned. The management regulations in the angling section solely allow the harvest of rainbow trout which offers the opportunity to answer further research questions concerning the resilience of a single species, as well as concerning the response of not harvested species. For the second objective new data will be generated by applying a dual-gearapproach including snorkeling and electrofishing action. Besides generating new data on yet genarally insufficiently studied research topics the study imparts knowledge for the development of recommendations and guidelines for the sustainable usage of freshwater salmonid stocks. Overall, the study seeks to promote integrated management of conservation areas so to establish nature reserves as best practice projects.
Fisheries management Sustainability Salmonids
Publikationen
Schnorcheln: Eine einfache methode zur gewinnung quantitativer Daten fischereilich relevanter Fischarten
Autoren: Hayes, D; Pinter, K Jahr: 2017
Journal articles
Project staff
Kurt Pinter
DDipl.Ing. Dr. Kurt Pinter
kurt.pinter@boku.ac.at
Tel: +43 1 47654-81235
BOKU Project Leader
01.07.2013 - 30.11.2014
Günther Unfer
Dipl.-Ing. Dr.nat.techn. Günther Unfer
guenther.unfer@boku.ac.at
Tel: +43 1 47654-81213
Project Staff
01.07.2013 - 30.11.2014