Biological Impacts of Recreational Fishing Resulting from Exploitation, Stocking and Introduction

Lewin, Wolf-Christian; McPhee, Daryl Peter; Arlinghaus, Robert

doi:10.1002/9780470697597.ch4

Cited by 8 publications

(8 citation statements)

References 93 publications

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“…As a result, recreational fisheries managers in some countries tend consistently to manage stocks through stocking rather than to enhance the environment. This can lead to disruption of ecosystem functioning and, potentially, affect several ecological services generated by fish stocks (Holmlund & Hammer, 2004; Lewin et al , 2008). This trend needs reversing towards maintenance of angling experiences within limits set by natural productivity of native fish stocks and a change in the deeply entrenched belief among some anglers and managers that good fishing happens only because fishes are stocked (Schramm & Edwards, 1994).…”

Section: Swot Analysismentioning

confidence: 99%

Harmonizing recreational fisheries and conservation objectives for aquatic biodiversity in inland waters

Cowx

Arlinghaus

Cooke

2010

Journal of Fish Biology

201

151

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The importance of recreational fisheries to local and national economies, and as a generator of immense social welfare throughout the developed world, is well established. Development in the sector and its interaction with non-fishery-related nature conservation objectives for aquatic biodiversity, however, have the potential to generate conflict. This article reviews the intersection between recreational fisheries and nature conservation goals for aquatic biodiversity with specific reference to inland waters in industrialized countries, and the principal management activities and constraints that can lead to conflicts. A SWOT (strengths, weaknesses, opportunities and threats) analysis was used to review the issues facing sectoral development and identify options for future advancement of recreational fisheries to ameliorate potential conflicts with nature conservation goals. It is concluded that reconciliation of recreational fisheries and modern conservation perspectives is both possible and desirable, because many conservation problems also benefit fisheries quality. Angler buy-in to conservation is probable if (1) management scales are small, (2) threats to conservation originate from outside the fisheries sectors and (3) ecological awareness for the conservation problem is high. If these aspects are not present, reconciliation of recreational fisheries and nature conservation goals is less likely, risking both the aquatic biodiversity and the future of angling. To address these issues, enforcement of legislation and continued communication with angler communities is necessary, as well as development of integrated management policies that build on the instrumental values of aquatic biodiversity for recreational fisheries, while curtailing the more insidious threats to such biodiversity that originate directly from the recreational fisheries sector.

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Section: Swot Analysismentioning

confidence: 99%

Harmonizing recreational fisheries and conservation objectives for aquatic biodiversity in inland waters

Cowx

Arlinghaus

Cooke

2010

Journal of Fish Biology

201

151

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“…Further, recreational fishing and commercial fishing have similar ecological effects on fish populations. The main biological impacts include changes in the size and age structures in populations or communities, biomass reduction, loss of genetic diversity, changes in trophic cascades and habitat degradation (Lewin et al 2008). Based on reliable statistics from several countries, 10.6% of people practice recreational fishing (Arlinghaus & Cooke 2009).…”

Section: Introductionmentioning

confidence: 99%

Collaborative assessment of recreational fishing in a subtropical estuarine system: a case study with fishing guides from south‐eastern Brazil

Motta

Mendonça

Moro³

2016

Fisheries Management Eco

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Knowledge of recreational fisheries in Brazil is scarce and remains a critical issue to determine management actions. By adopting a collaborative approach that involved fishing guides, recreational fishing from the Iguape and Canan eia Lagoon Estuarine System (south-eastern Brazil) was assessed. During the study period (from April 2009 to March 2010), 341 fishing operations (boat day À1 ) were monitored. A total of 10 051 fish specimens of 26 families and at least 51 species were examined. The fat snook, Centropomus parallelus Poey, was the most commonly caught species representing 51% of the fish caught. Annual fishing effort was estimated at 272 859 anglerhours, and the mean catch-per-unit-effort was 3.42 fish boat À1 h À1 . Size structure of targeted species suggests that the populations are overexploited. The approach used in the study reinforces the importance of engaging different stakeholders in science and management and improving the communication among them. K E Y W O R D S : anglers, engagement, management, marine conservation, recreational fishing, stakeholders.

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“…Stocked fish also directly compete with wild fish for food and shelter, and may in other ways affect food webs and the structure of the ecosystem (Eby et al . ; Lewin, McPhee & Arlinghaus ; Lorenzen, Beveridge & Mangel ). Furthermore, each fish stocking event carries risks to the ecosystem of introducing invasive species, parasites or pathogens (Hewlett, Snow & Britton ; Johnson, Arlinghaus & Martinez ).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of lecture‐based environmental education for biodiversity conservation: a robust controlled field experiment with recreational anglers engaged in self‐organized fish stocking

Fujitani

McFall

Randler³

et al. 2015

Journal of Applied Ecology

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Summary Fish stocking constitutes a widespread management tool for freshwater fisheries, but depending on configuration can be economically wasteful, ecologically harmful and lead to irreversible biodiversity loss. We conducted a large‐scale controlled experiment of a lecture intervention to understand whether communication of neutrally worded scientific information about sustainable fish stocking might alter anglers’ ecological knowledge and cognitions (e.g. functional beliefs and attitudes) about the benefits and potential costs of fish stocking. Seventeen angler clubs from Germany who engage in self‐organized fish stocking were randomly assigned to receive either a stocking lecture or a control lecture (on general fish management). From each club, self‐selected anglers including water‐body managers (N = 201) completed a questionnaire on ecological knowledge and cognitions about stocking before the lecture, immediately after the lecture and 10 months later to assess long‐term retention. Data were analysed using Before‐After‐Control‐Impact analysis with club‐level random effects. Compared to the control group (n = 86), anglers in the treatment (n = 115) showed a significant post‐lecture increase in knowledge in all six topics taught about the biological nuances of stocking and potential risks. However, there were no changes in stocking‐related attitudes or personal norms towards future stocking. Only one knowledge domain was retained long‐term (10 months): the understanding that stocking does not always have additive fishery effects (P < 0·05). There were also trends indicating long‐term knowledge gains related to the genetic risks of stocking and the advantages of local adaptation, and a decreased functional belief in stocking efficacy (P < 0·08). These results suggest that participants may engage more cautiously in fish stocking in the future. Synthesis and applications. Lectures will continue to be a dominant mode of environmental education due to convenience and familiarity, particularly for stakeholders participating during leisure time and in contexts where training lectures are legally required. Our results show that lectures can effectively communicate complex ecological topics and lead to knowledge gain. Lectures on natural resource management will be most effective when addressing issues of high relevance to stakeholder's interests and modifying current practices, but changes in basic cognitions may require a more active learning environment.

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Biological Impacts of Recreational Fishing Resulting from Exploitation, Stocking and Introduction

Cited by 8 publications

References 93 publications

Harmonizing recreational fisheries and conservation objectives for aquatic biodiversity in inland waters

Harmonizing recreational fisheries and conservation objectives for aquatic biodiversity in inland waters

Collaborative assessment of recreational fishing in a subtropical estuarine system: a case study with fishing guides from south‐eastern Brazil

Efficacy of lecture‐based environmental education for biodiversity conservation: a robust controlled field experiment with recreational anglers engaged in self‐organized fish stocking

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