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Project
Recreational fishery on salmon and sea trout
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DCF (Data Collection Framework): Collection of data from the German recreational fishery on Baltic salmon and sea trout in the framework of the National Fisheries Data Collection Program
In the past, the impact of recreational fisheries (particular angling) on European marine fish stocks has often been neglected. Recent studies revealed that recreational catches can have a substantial magnitude compared to commercial catches for some European marine and diadromous fish stocks. In Germany, this seems particularly relevant for Atlantic salmon (Salmo salar L.) and sea trout (Salmo trutta trutta L.) in the Baltic Sea.
Background and Objective
In the past, the impact of recreational fisheries (particular angling) on European marine fish stocks has often been neglected. Recent studies revealed that recreational catches can have a substantial magnitude compared to commercial catches for some European marine and diadromous fish stocks (e.g. for the western Baltic cod stock), and therefore, should be incorporated in future stock assessments. However, up to now only few information exists about the impact of the recreational fishery on many fish species and stocks. In Germany, this seems particularly relevant for Atlantic salmon (Salmo salar L.) and sea trout (Salmo trutta trutta L.) in the Baltic Sea. Several studies from other Baltic costal states showed that recreational salmon and sea trout catches are substantial compared to the commercial fishery. At the same time, it should be noted that that the status of many Baltic salmon and sea trout stocks is critical due to various factors (pollution, habitat loss, fishery etc.). Therefore, investigations of the recreational salmon and sea trout catches are also needed in Germany and, if necessary, recreational removals should be included in future stock assessments.
The results will help to increase the accuracy of the recreational salmon and sea trout biomass removal estimates and thereby improve the management of the western Baltic salmon and sea trout stocks. Furthermore, the findings will provide a basis for future management recommendations, ultimately promoting a sustainable recreational fishery on Baltic salmon and sea trout.
Approach
The Thünen Institute for Baltic Sea Fisheries (OF) has started data collection from the German Baltic recreational fishery on salmon and sea trout in 2013 to close this scientific knowledge gap. Angling effort and catch per unit effort (e.g. catch/angling day) will be determined to estimate recreational salmon and sea trout removals. Furthermore, various biological data (e.g. length, weight, age) will be collected and ecological (e.g. stomach content analyses) as well as genetical (stock structure analyses) investigations are planned. Additionally, the economic importance of the recreational fishery along the German Baltic coast will be evaluated using the salmon and sea trout fishery as a case example.
Thünen-Contact
Involved Thünen-Partners
Involved external Thünen-Partners
- GEOMAR - Helmholtz Zentrum für Ozeanforschung Kiel
(Kiel, Deutschland)
Funding Body
-
European Union (EU)
(international, öffentlich)
Duration
1.2013 - 12.2025
More Information
Project status:
ongoing
Publications
- 0
Weltersbach MS, Lewin W-C, Haase K, Eckardt J, Strehlow HV (2024) 20 Years of Work on Marine Recreational Fisheries at the Thünen Institute of Baltic Sea Fisheries. Braunschweig: Johann Heinrich von Thünen-Institut, 87 p, Thünen Working Paper 234, DOI:10.3220/WP1710484687000
- 1
Nadolna-Altyn K, Magnusson K, Bajinskis J, Bernas R, Dahlgren E, Dannewitz J, Debowski P, Ek C, Ivanauskas E, Kagervall A, Karlsson K, Kesler M, Kontautas A, Leinonen T, Lejk AM, Louhi P, Olesen HJ, Pakarinen T, Palm S, Weltersbach MS, et al (2024) Baltic Salmon and Trout Assessment Working Group (WGBAST). Copenhagen: ICES, vi, 425 p, ICES Sci Rep 6(42), DOI:10.17895/ices.pub.25868665
- 2
Höjesjö J, Walker A, Aarestrup K, Alexandre C, Artero C, Austad B, Bajinskis J, Bernas R, Berry M, Davidsen JG, Davidson I, Davison P, de Eyto E, Debowski P, Diserud O, Elliott S, Ensing D, Finstad B, Fitzgerald C, Weltersbach MS, et al (2024) Working Group to Develop and Test Assessment Methods for Sea Trout Populations (anadromous Salmo trutta) (Outputs from 2020-2023 Meetings) (WGTRUTTA). Copenhagen: ICES, iii, 29 p, ICES Sci Rep 6(88), DOI:10.17895/ices.pub.27169515
- 3
Kesler M, Bajinskis J, Bernas R, Dahlgren E, Dannewitz J, Debowski P, Olesen HJ, Kagervall A, Kesminas V, Kontautas A, Leinonen T, Lejk AM, Louhi P, Magnusson K, Nadolna-Altyn K, Pakarinen T, Palm S, Pedersen S, Weltersbach MS, Strehlow HV, et al (2023) Baltic Salmon and Trout Assessment Working Group (WGBAST). Copenhagen: ICES, iv, 451 p, ICES Sci Rep 5(53), DOI:10.17895/ices.pub.22800983
- 4
Jepsen N, Skov C, Kristensen ML, Larsen MH, Lewin W-C, Gundelund C, Weltersbach MS, Ferter K, Koed A (2023) Kritiske elementer i bestandsvurderingsmodeller for aal og havørred. Silkeborg: DTU Aqua, 57 p, DTU Aqua Rep 416-2022
- 5
Skov C, Ferter K, Jepsen N, Pedersen L-F, Lewin W-C, Gundelund C, Weltersbach MS (2023) Post-release effects of catch and release angling for sea trout: Mortality, growth and wound healing. Fish Res 261:106637, DOI:10.1016/j.fishres.2023.106637
- 6
Skov C, Gundelund C, Weltersbach MS, Ferter K, Bertelsen SK, Jepsen N (2022) Catch and release angling for sea trout explored by citizen science: Angler behavior, hooking location and bleeding patterns. Fish Res 255:106451, DOI:10.1016/j.fishres.2022.106451
- 7
Kesler M, Amosova V, Bajinskis J, Bernas R, Dahlgren E, Dannewitz J, Debowski P, Kagervall A, Koljonen M-L, Kontautas A, Leinonen T, Lejk AM, Magnusson K, Mäntyniemi S, Nadolna-Altyn K, Pakarinen T, Palm S, Pedersen S, Strehlow HV, Weltersbach MS, et al (2021) Baltic Salmon and Trout Assessment Working Group (WGBAST). Copenhagen: ICES, 331 p, ICES Sci Rep 3(26), DOI:10.17895/ices.pub.7925
- 8
Weltersbach MS, Riepe C, Lewin W-C, Strehlow HV (2021) Ökologische, soziale und ökonomische Dimensionen des Meeresangelns in Deutschland. Braunschweig: Johann Heinrich von Thünen-Institut, 210 p, Thünen Rep 83, DOI:10.3220/REP1611578297000
- 9
Hartill BW, Taylor SM, Keller K, Weltersbach MS (2020) Digital camera monitoring of recreational fishing effort: Applications and challenges. Fish Fisheries 21(1):204-215, DOI:10.1111/faf.12413
- 10
Höjesjö J, Walker A, Aarestrup K, Alexandre C, Bernas R, Debowski P, Degerman E, Davidsen J, Davidson I, Diserud O, Ensing D, Finstad B, Finlay R, Jonsson B, Josset Q, Kagervall A, Kennedy R, Kesler M, Strehlow HV, Weltersbach MS, et al (2020) Working Group with the Aim to Develop Assessment Models and Establish Biological Reference Points for Sea Trout (Anadromous Salmo trutta) Populations (WGTRUTTA; outputs from 2019 meeting). Copenhagen: ICES, 59 p, ICES Sci Rep 2(59), DOI:10.17895/ices.pub.7431
