The influence of type of natural bait on fish catches and hooking location in a mixed-species marine recreational fishery, with implications for management

Alós, Josep; Arlinghaus, Robert; Palmer, Miquel; March, David; Álvarez, Itziar

doi:10.1016/j.fishres.2009.03.003

Cited by 52 publications

(49 citation statements)

References 41 publications

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“…We also conducted a number of experimental angling sessions in the experimental area to obtain a corresponding hook-and-line sample (n = 165, fish size = 144.8 ± 26.6 mm; and age = 3.59 ± 1.6 yr). The experimental angling sessions were conducted following protocols described by Alós et al (2009). All of the individuals were measured (total length in mm) and weighed (total weight in g), and their sagittal otoliths were dissected.…”

Section: Selective Effects Of Recreational Angling On Life-history Trmentioning

confidence: 99%

“…The fish sampling was conducted with identical gears (conventional hookand-line; Alós et al 2009) at areas with similar habitat characteristics (seagrass meadows of Posidonia oceanica) and depths. Samples were processed as described be fore.…”

Section: Life History Of Fish In Exploited and Unexploited Sitesmentioning

confidence: 99%

“…The scale bar represents the percentage of virtual eggs that moved from one site to another (note that the scale is exponential) and the general limited connectivity among sites in our study. We performed experimental fishing sessions (IPB: n = 54, OP: n = 24, and NPC: n = 64) using the standardised recreational angling gear described by Alós et al (2009), visiting each sub-population on randomly selected days during a 1 yr period.…”

Section: Life History Of Fish In Exploited and Unexploited Sitesmentioning

confidence: 99%

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Selective exploitation of spatially structured coastal fish populations by recreational anglers may lead to evolutionary downsizing of adults

Alós¹,

Palmer²,

Catalán³

et al. 2014

Mar. Ecol. Prog. Ser.

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When gene flow is limited and harvesting is intensive, fishing may alter life histories and favour trait combinations that collectively reduce adult body size. However, empirical evidence of downsizing of adults in small-bodied coastal fish is still scarce, in part due to the lack of knowledge about the selective nature of certain fishing gears, such as recreational angling, and the difficulties in estimating the dispersion of pelagic early-life stages. Using the small-bodied sedentary coastal marine fish Serranus scriba as a model, we first empirically show that recreational angling selects for life-history traits (i.e. increased reproductive investment) that promote downsizing of adults. Second, using Lagrangian particle dispersion modelling, we show how local hydrodynamics generates patterns of limited connectivity and the emergence of meta-population structure. Finally, the life histories presently observed in isolated populations of S. scriba that experienced differential fishing pressure matched expectations of fishing-induced downsizing of adult body size. Body size is an important trait in aquatic food webs, and evolutionary downsizing might have unforeseen consequences. From a precautionary perspective, maintaining the metapopulation structure and the full range of genotypes inherent in them is important, even for smallbodied, geographically restricted fish species that are mainly harvested by recreational anglers.

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Section: Selective Effects Of Recreational Angling On Life-history Trmentioning

confidence: 99%

Section: Life History Of Fish In Exploited and Unexploited Sitesmentioning

confidence: 99%

Section: Life History Of Fish In Exploited and Unexploited Sitesmentioning

confidence: 99%

See 1 more Smart Citation

Selective exploitation of spatially structured coastal fish populations by recreational anglers may lead to evolutionary downsizing of adults

Alós¹,

Palmer²,

Catalán³

et al. 2014

Mar. Ecol. Prog. Ser.

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show abstract

“…Note, however, that even the most restrictive harvest regulations (i.e., catch-andrelease angling only) will not allow fish populations to support an ever-increasing amount of fishing pressure because of hooking mortality (Muoneke and Childress, 1994). Gear regulations, such as restrictions on bait type (Alos et al, 2009) or lure size (Wilde et al, 2003), may reduce overall angling success while increasing the overall size of fish that are caught and likely harvested. Regardless, numbers of harvestable-sized fish caught by anglers generally decreases with more restrictive regulations, which may decrease angler satisfaction (e.g., Oh and Ditton, 2006) and ultimately reduce fishing pressure at the waterbody (Beard et al, 2003).…”

Section: Management Of Anglers Within a Regional Fisherymentioning

confidence: 99%

Luring anglers to enhance fisheries

Martin

Pope

2011

Journal of Environmental Management

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a b s t r a c tCurrent fisheries management is, unfortunately, reactive rather than proactive to changes in fishery characteristics. Furthermore, anglers do not act independently on waterbodies, and thus, fisheries are complex socio-ecological systems. Proactive management of these complex systems necessitates an approachdadaptive fisheries managementdthat allows learning to occur simultaneously with management. A promising area for implementation of adaptive fisheries management is the study of luring anglers to or from specific waterbodies to meet management goals. Purposeful manipulation of anglers, and its associated field of study, is nonexistent in past management. Evaluation of different management practices (i.e., hypotheses) through an iterative adaptive management process should include both a biological and sociological survey to address changes in fish populations and changes in angler satisfaction related to changes in management. We believe adaptive management is ideal for development and assessment of management strategies targeted at angler participation. Moreover these concepts and understandings should be applicable to other natural resource users such as hunters and hikers.

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“…Bait digging for angling or professional fishing is a common practice in many European lagoons [1][2][3]. Similar to many European cases, the Ria de Aveiro in Portugal is a coastal lagoon digging for shellfish and baitworm takes place in subtidal and intertidal mudflat habitats.…”

Section: Introductionmentioning

confidence: 99%

Introducing a Regulatory Policy Framework of Bait Fishing in European Coastal Lagoons: The Case of Ria de Aveiro in Portugal

Xenarios

Queiroga

Lillebø

et al. 2018

Fishes

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Abstract:The harvesting of bait through digging in coastal mudflats is practiced for recreational and commercial purposes in European coastal systems including the Ria de Aveiro coastal lagoon on the northwest Atlantic coast of Portugal. The scale of harvesting in the Ria de Aveiro has recently increased due to the current economic climate in Portugal, with targeting of the polychaete, Diopatra neapolitana species or "casulo" as it is widely known in the Aveiro region. The national authorities have attempted to control casulo digging by issuing a regulation (Ordinance) in 2014 on the maximum daily catch limit to be caught by each individual. The daily catch limit is intended to represent the Maximum Sustainable Yield (MSY) for casulo beyond which overfishing will occur. The monitoring of the regulatory measures is expected to be conducted through on-site inspections in the digging areas. However, weak law enforcement was noticed, while there is also controversy over the daily catch limit (quota) stipulated by the Ordinance. To this end, the current study attempted to assess digging activities through remote monitoring and random inspections for a better policy enforcement of the national regulation. In addition, different harvesting scenarios were employed through a simplified bioeconomic model to attribute the current and future harvesting trends of bait digging in Aveiro coastal lagoon. The study findings indicate that remote monitoring coupled with some onsite interviews could be a more effective approach for the implementation of the current bait digging policy. Further, the results point to a distinctive discrepancy between the daily catch amount (MSY) introduced by the national legislation and the study findings which should be further scrutinized. The diggers seem to have reached the sustainable harvest identified by the present research. The current economic hardship in Portugal and the low profitability in similar employment sectors will possibly attract more diggers and increase harvesting in the near future. An increased harvest would likely trigger overfishing of D. neapolitana with unknown consequences for the population of the species as well as the aquatic ecosystem. The socio-economic and environmental effects are yet to be further clarified with more detailed data and advanced modeling techniques to ensure the sustainability of the activity.

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The influence of type of natural bait on fish catches and hooking location in a mixed-species marine recreational fishery, with implications for management

Cited by 52 publications

References 41 publications

Selective exploitation of spatially structured coastal fish populations by recreational anglers may lead to evolutionary downsizing of adults

Selective exploitation of spatially structured coastal fish populations by recreational anglers may lead to evolutionary downsizing of adults

Luring anglers to enhance fisheries

Introducing a Regulatory Policy Framework of Bait Fishing in European Coastal Lagoons: The Case of Ria de Aveiro in Portugal

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