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  • 1
    Online Resource
    Online Resource
    Evaluation of a citizen science platform for collecting fisheries data from coastal sea trout anglers
    Canadian Science Publishing ; 2021
    In:  Canadian Journal of Fisheries and Aquatic Sciences Vol. 78, No. 11 ( 2021-11), p. 1576-1585
    Details
    In: Canadian Journal of Fisheries and Aquatic Sciences, Canadian Science Publishing, Vol. 78, No. 11 ( 2021-11), p. 1576-1585
    Abstract: There are often limited data available to support the sustainable management of recreational fisheries. Electronic citizen science platforms (e.g., smartphone applications) offer a cost-effective alternative to traditional survey methods — but these data must be validated. We compared sea trout (Salmo trutta) data from a Danish citizen science platform with three independent traditional surveys: a roving creel survey, an aerial survey, and a recall survey. The comparisons include fisheries data (e.g., catch, release, effort, and fish size structure) and demographic descriptors (e.g., age) that were collected within the same spatial and temporal frame. We found general alignment between recreational sea trout catch and effort data that were provided by citizen scientists, or collected by more traditional survey methods. Our results demonstrate that citizen science data have the potential to supplement traditional surveys, or act as an alternative source of catch and effort data. However, results were from a highly specialized fishery within a limited spatial and temporal frame, so more research is needed to assess their relevance over time and to a broader set of fisheries.
    Type of Medium: Online Resource
    ISSN: 0706-652X , 1205-7533
    URL: Article
    DOI: 10.1139/cjfas-2020-0364
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 2021
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  • 2
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    Global responses to the COVID-19 pandemic by recreational anglers: considerations for developing more resilient and sustainable fisheries
    Springer Science and Business Media LLC ; 2023
    In:  Reviews in Fish Biology and Fisheries Vol. 33, No. 4 ( 2023-12), p. 1095-1111
    Details
    In: Reviews in Fish Biology and Fisheries, Springer Science and Business Media LLC, Vol. 33, No. 4 ( 2023-12), p. 1095-1111
    Abstract: The global COVID-19 pandemic resulted in many jurisdictions implementing orders restricting the movements of people to inhibit virus transmission, with recreational angling often either not permitted or access to fisheries and/or related infrastructure being prevented. Following the lifting of restrictions, initial angler surveys and licence sales suggested increased participation and effort, and altered angler demographics, but with evidence remaining limited. Here, we overcome this evidence gap by identifying temporal changes in angling interest, licence sales, and angling effort in world regions by comparing data in the ‘pre-pandemic’ (up to and including 2019); ‘acute pandemic’ (2020) and ‘COVID-acclimated’ (2021) periods. We then identified how changes can inform the development of more resilient and sustainable recreational fisheries. Interest in angling (measured here as angling-related internet search term volumes) increased substantially in all regions during 2020. Patterns in licence sales revealed marked increases in some countries during 2020 but not in others. Where licence sales increased, this was rarely sustained in 2021; where there were declines, these related to fewer tourist anglers due to movement restrictions. Data from most countries indicated a younger demographic of people who participated in angling in 2020, including in urban areas, but this was not sustained in 2021. These short-lived changes in recreational angling indicate efforts to retain younger anglers could increase overall participation levels, where efforts can target education in appropriate angling practices and create more urban angling opportunities. These efforts would then provide recreational fisheries with greater resilience to cope with future global crises, including facilitating the ability of people to access angling opportunities during periods of high societal stress.
    Type of Medium: Online Resource
    ISSN: 0960-3166 , 1573-5184
    URL: Article
    DOI: 10.1007/s11160-023-09784-5
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
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  • 3
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    Toward sustainable harvest strategies for marine fisheries that include recreational fishing
    Wiley ; 2023
    In:  Fish and Fisheries
    Details
    In: Fish and Fisheries, Wiley
    Abstract: Recreational fishing (RF) is a large yet undervalued component of fisheries globally. While progress has been made in monitoring, assessing, and managing the sector in isolation, integration of RF into the management of multi‐sector fisheries has been limited, particularly relative to the commercial sector. This marginalises recreational fishers and reduces the likelihood of achieving the sector's objectives and, more broadly, achieving fisheries sustainability. We examined the nature and extent of RF inclusion in harvest strategies (HSs) for marine fisheries across 15 regions in 11 nations to define the gap in inclusion that has developed between sectors. We focused on high‐income nations with a high level of RF governance and used a questionnaire to elicit expert knowledge on HSs due to the paucity of published documents. In total, 339 HSs were considered. We found that RF inclusion in HSs was more similar to the small‐scale sector (i.e., artisanal, cultural, or subsistence) than the commercial sector, with explicit operational objectives, data collection, performance indicators, reference points, and management controls lacking in many regions. Where specified, RF objectives focused on sustainability, economic value and catch allocation rather than directly relating to the recreational fishing experience. Conflicts with other sectors included competition with the commercial sector for limited resources, highlighting the importance of equitable resource allocation policies alongside HSs. We propose that RF be explicitly incorporated into HSs to ensure fisheries are ecologically, economically, and socially sustainable, and we recommend that fisheries organisations urgently review HSs for marine fisheries with a recreational component to close the harvest strategy gap among sectors.
    Type of Medium: Online Resource
    ISSN: 1467-2960 , 1467-2979
    URL: Article
    DOI: 10.1111/faf.12781
    Language: English
    Publisher: Wiley
    Publication Date: 2023
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  • 4
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    Estimating discard survival of European sea bass ( Dicentrarchus labrax ) in the UK commercial hook‐and‐line fishery
    Wiley ; 2022
    In:  Fisheries Management and Ecology Vol. 29, No. 2 ( 2022-04), p. 105-114
    Details
    In: Fisheries Management and Ecology, Wiley, Vol. 29, No. 2 ( 2022-04), p. 105-114
    Abstract: Despite the implementation of technical management measures to facilitate stock recovery of European sea bass, Dicentrarchus labrax (L.), the survival rate of discarded hook‐and‐line caught sea bass remains unknown. This makes the effectiveness of management measures that result in discarding difficult to assess. Therefore, a questionnaire was distributed to 421 UK‐based commercial hook‐and‐line fishers (65 respondents) to characterise how sea bass are caught, handled and released. Responses suggested fishing was selective with a reported estimated mean discard rate of 12.9% (±3.3% SE). Low rates of foul and deep hooking, and short periods of air exposure were reported. Combined with data from a post‐release mortality experiment using hook‐and‐line caught captive sea bass, a fleet‐wide discard survival rate of 89.3% (±2.6% SE) was calculated for the UK commercial hook‐and‐line sea bass fishery. This survival rate suggests that technical management measures, for example minimum conservation reference sizes and catch limits, could be effective tools for managing the sea bass hook‐and‐line fishery.
    Type of Medium: Online Resource
    ISSN: 0969-997X , 1365-2400
    URL: Issue
    URL: Article
    DOI: 10.1111/fme.v29.2
    DOI: 10.1111/fme.12518
    Language: English
    Publisher: Wiley
    Publication Date: 2022
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    detail.hit.zdb_id: 2020299-4
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  • 5
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    Structure in a sea of sand: fish abundance in relation to man-made structures in the North Sea
    Oxford University Press (OUP) ; 2020
    In:  ICES Journal of Marine Science Vol. 77, No. 3 ( 2020-05-01), p. 1206-1218
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 77, No. 3 ( 2020-05-01), p. 1206-1218
    Abstract: Artificial structures in the marine environment may have direct and/or indirect impact on the behaviour and space use of mobile foragers. This study explores whether environmental and physical features in the North Sea—including artificial structures (wrecks, wind turbines, cables, and oil and gas structures) were associated with local abundance of three fish species: cod (Gadus morhua), plaice (Pleuronectes platessa), and thornback ray (Raja clavata). Generalized additive models (GAMs) were used to compare distributions between data collected by fisheries surveys and electronic tags. Distributions of cod, plaice, and ray were correlated with environmental variables including temperature, depth, and substrate, matching findings from previous studies. All species showed seasonal increases in their abundance in areas with high densities of artificial structures, including oil and gas platforms and wrecks. Independent of whether fish purposefully associate with these features or whether structures happen to coincide with locations frequented by these populations, the strong association suggests that greater consideration needs to be given to regulation of habitat alterations, including decommissioning.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsy142
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
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    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
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  • 6
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    Monetary valuation of recreational fishing in a restored estuary and implications for future management measures
    Oxford University Press (OUP) ; 2020
    In:  ICES Journal of Marine Science Vol. 77, No. 6 ( 2020-11-01), p. 2295-2303
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 77, No. 6 ( 2020-11-01), p. 2295-2303
    Abstract: Recreational fishing is considered a cultural ecosystem service, important in terms of the socio-economic benefits that it provides. In the Nerbioi estuary (northern Spain), investments in water treatment and the closure of polluting industries have led to several benefits such as improvements in water quality, fish abundance and richness, and recreational fishing activity. Currently, this activity is performed along the whole estuary including areas that previously were severely polluted. Valuing the benefits of recreational fishing is crucial to support the management of the estuary. The economic valuation is performed using a multi-site travel cost analysis. In addition, the effect on welfare measures of future scenarios where environmental conditions and accessibility change is analysed. Results indicate that each recreational trip in Nerbioi has a use value of 14.98€, with an aggregate value of 1.12 M€year−1 for the whole recreational fishers’ community. The simulated scenarios suggest that further environmental improvements would have a positive effect in the activity, increasing the current welfare by 7.5–11.5%. In contrast, worsening of environmental conditions and accessibility could translate into a welfare reduction up to 71%. The monetary use value of recreational fishing partially covers (4.7%) the costs of maintaining the environmental quality of the estuary.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsz091
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
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    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
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  • 7
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    Determining spatial patterns in recreational catch data: a comparison of generalized additive mixed models and boosted regression trees
    Oxford University Press (OUP) ; 2020
    In:  ICES Journal of Marine Science Vol. 77, No. 6 ( 2020-11-01), p. 2216-2225
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 77, No. 6 ( 2020-11-01), p. 2216-2225
    Abstract: Marine recreational fisheries (MRFs) are often highly spatially heterogenous, with effort concentrated into small areas, and fisheries spanning large environmental gradients. However, spatially resolved catch data is rarely collected in MRFs, preventing the study of spatial heterogeneity in catch. This study uses recreational catch reported in 10 × 10 nm blocks across eight degrees of latitude in Western Australia to map spatial predictions of the probability of a recreational catch on an average trip for two key species: West Australian dhufish (Glaucosoma hebraicum) and snapper (Chrysophrys auratus). Two spatial modelling techniques are compared for the analysis, generalized additive mixed models (GAMMs) and boosted regression trees (BRTs). We find that BRTs outperform GAMMs, but performance gains are small. We also find marked spatial variations in recreational catch probabilities: high catches of dhufish are found in the north of the study area, and low catches in the Perth Metropolitan area and in the south; snapper catches are highest in the north and low in the south. These patterns are used to identify important spatial processes in the fishery. The analysis also suggests that modelling approach (GAMMs or BRTs) has only a minor effect on outcomes of spatial catch analysis in MRFs.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsz123
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
    SSG: 12
    SSG: 21,3
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  • 8
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    Standardizing harvest rates of finfish caught by shore-based recreational fishers
    Oxford University Press (OUP) ; 2020
    In:  ICES Journal of Marine Science Vol. 77, No. 6 ( 2020-11-01), p. 2207-2215
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 77, No. 6 ( 2020-11-01), p. 2207-2215
    Abstract: Evaluation of fisheries management and sustainability indicators can be supported by a reliable index of harvest rate. However, the most appropriate model that accounts for recreational fisheries is largely unknown. In order to adjust for these factors, generalized linear models were applied to data from shore-based recreational fishing surveys conducted in Western Australia between 2010 and 2016. Five candidate error distributions (lognormal, Gamma, Zero-Altered Gamma, Tweedie, and delta-lognormal) and seven independent variables (year, month, target species, fishing platform, fishers’ avidity, time of day, and day type) were examined for commonly caught nearshore teleost species. Zero-Altered Gamma and Tweedie models performed best overall, although model performance and explanatory variables varied between species. Standardized harvest rates for Australian herring (Arripis georgianus) declined from 1.88 ± 0.17 (mean ± s.e.) fish per fishing party per day) in 2010 to 0.86 ± 0.07 in 2016, while harvest rates for School whiting (Sillago spp.) increased from 0.44 ± 0.21 in 2010 to 0.94 ± 0.34 in 2016. The standardized harvest rates for both species generally showed less fluctuation among years and consistently had smaller errors than the raw harvest rates. Overall, the results suggest that the choice of error distribution, as well as explanatory variables, is species dependent when assessing shore-based fisheries. The approach used could easily be adapted to other recreational fisheries to establish reliable species-specific harvest rates that can detect variability against thresholds set in harvest strategies.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsz228
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
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  • 9
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    Forecasting for recreational fisheries management: a derby fishery case study with Gulf of Mexico Red Snapper
    Oxford University Press (OUP) ; 2020
    In:  ICES Journal of Marine Science Vol. 77, No. 6 ( 2020-11-01), p. 2265-2284
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 77, No. 6 ( 2020-11-01), p. 2265-2284
    Abstract: In a derby fishery, anglers race to catch as many fish as possible during a limited season. To meet legal mandates to prevent overfishing, forecasting accuracy is paramount. Red Snapper is among the most prized species in the US Gulf of Mexico and represents a politically charged derby fishery case study. We describe the management considerations, data, methods, and specialized statistical forecasting approaches used to estimate recreational component season lengths to maximize fishing opportunities while meeting mandates to constrain catch below legal limits. Retrospective analysis of model predictions for 2013–2017 indicated mean prediction error of 2626 ± 13 231, 3014 ± 15 744, and 42 975 ± 132 032 pounds whole weight per open day for charter, headboat, and private mode catch rates, respectively. Forecasting results using generalized linear models indicated that the annual harvest for 2017 would be caught in 2 d for the private angling component with an 18% probability of exceeding the component quota. The federal for-hire (charter and headboat) component season was estimated to be 48 d, with a 5% probability of exceeding the component quota. There is a broad scientific and management interest in identifying strategies to continue rebuilding the stock while increasing stakeholder access.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsz238
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2020
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
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  • 10
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    Integrating complementary survey methods to estimate catches in Norway’s complex marine recreational hook-and-line fishery
    Oxford University Press (OUP) ; 2023
    In:  ICES Journal of Marine Science Vol. 80, No. 1 ( 2023-01-25), p. 107-121
    Details
    In: ICES Journal of Marine Science, Oxford University Press (OUP), Vol. 80, No. 1 ( 2023-01-25), p. 107-121
    Abstract: Marine recreational fishing is popular in Norway, but current estimates of the catches by resident and tourist anglers are lacking due to several challenges, in particular Norway’s long and intricate coastline with no defined access points and the large tourist fishery. To test methods for long-term monitoring of boat-based marine recreational anglers, estimate their catches, and characterize the fishery, we conducted a roving creel survey based on a novel spatial sampling frame and a survey of tourist fishing businesses in Troms and Hordaland County. These surveys showed that cod (Gadus morhua) and saithe (Pollachius virens) dominated the catches in Troms, while mackerel (Scomber scombrus) and saithe dominated the catches in Hordaland. The estimated total annual harvest of cod by all marine recreational anglers was 2 160 tonnes (relative standard error, or RSE 44%) in Troms and 73 tonnes (RSE 29%) in Hordaland, of which ∼40% (in weight) were landed in registered tourist fishing businesses, based on data from the tourist fishing survey. The results indicate that recreational anglers in Hordaland harvest more cod in coastal waters than commercial fishers. This study provides information for developing marine recreational fisheries monitoring in challenging survey situations to support science-based fisheries management.
    Type of Medium: Online Resource
    ISSN: 1054-3139 , 1095-9289
    URL: Article
    DOI: 10.1093/icesjms/fsac216
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2023
    detail.hit.zdb_id: 2463178-4
    detail.hit.zdb_id: 1468003-8
    detail.hit.zdb_id: 29056-7
    SSG: 12
    SSG: 21,3
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