A5053449919- Fish Ecology and Management Studies
- Marine and fisheries research
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Diverse Aspects of Tourism Research
- European and International Law Studies
- Recreation, Leisure, Wilderness Management
- Coral and Marine Ecosystems Studies
- Fish Biology and Ecology Studies
- Social and Educational Sciences
- Cruise Tourism Development and Management
- Arctic and Russian Policy Studies
- Indigenous Studies and Ecology
- Social Acceptance of Renewable Energy
- Water Quality and Resources Studies
- Adventure Sports and Sensation Seeking
- Marine animal studies overview
- Nutritional Studies and Diet
- Environmental Education and Sustainability
- Climate change and permafrost
- Aquaculture Nutrition and Growth
- Data Analysis with R
- COVID-19 impact on air quality
- Health Promotion and Cardiovascular Prevention
- Advanced Technologies in Various Fields
Technical University of Denmark
2020-2024
Shandong Freshwater Fisheries Research Institute
2018-2021
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 traditional survey methods — but these must be validated. We compared sea trout (Salmo trutta) from Danish platform with three independent surveys: roving creel survey, an aerial and recall survey. The comparisons include fisheries catch, release, effort, fish size structure) demographic...
Abstract Recreational fishing is increasingly included in fish stock assessments globally. Nonetheless, the extent and precision of recreational fisheries data are often limited. Common methods to collect those on-site off-site surveys, both which prone specific biases, whose magnitude widely unknown. The present study compares from an access point intercept a simultaneously conducted diary survey, separately targeting charter boat, shore anglers German Baltic Sea cod fishery identify biases...
It is well recognized that COVID-19 lockdowns impacted human interactions with natural ecosystems. One example recreational fishing, which, in developed countries, involves approximately 10% of people. Fishing licence sales and observations at angling locations suggest fishing effort increased substantially during lockdowns. However, the extent duration this increase remain largely unknown. We used four years (2018-2021) high-resolution data from a personal fish-finder device to explore...
Abstract Smartphone applications (apps) that target recreational fishers are growing in abundance. These apps have the potential to provide data useful for management of fisheries. We surveyed expert opinion 20, mostly European, countries assess current and future status app use marine The survey revealed a few already support existing collection, this number is likely increase within 5–10 years. strongest barriers were scarcity concern over quality, especially biases due opt-in nature use....
From 11 March to end of May 2020 a lockdown was imposed in Denmark due the Covid-19 outbreak. Concurrently 20% increase sales mandatory national angling licenses reported Denmark, suggesting an participation. Here, we use data collected from citizen science platform for recreational anglers a) explore whether participation affected multiple characteristics that registered spring 2020, and b) changes effort catch patterns during as platform. The results indicate able detect participants...
Sea trout (anadromous brown trout, Salmo trutta L.) is a popular recreational angling target species in the Baltic region and beyond. Across countries, substantial part of angled sea released after capture either due to management regulations or voluntary decisions by anglers. However, information about post-release impacts catch release (C&R) on survival growth saline waters largely missing. We used flow-through seawater raceway (4–10 °C) investigate (< 40 cm) up 29 days post release....
Sea trout (anadromous brown trout, Salmo trutta L.) is a popular target species for angling in Denmark and many other countries. In most regions, sea regulated by measures such as minimum landing sizes, bag limits or seasonal closures. This can lead to high catch release (C&R) rates. However, information about angler behavior, C&R practices, hooking locations level of injury bleeding, well post-release impacts on survival growth, largely missing this species. study, we used citizen science...
Abstract The Delphi method was used to gather assessments from 93 experts about drivers of future angling participation by locals and tourist anglers in Denmark, Finland, Iceland, Norway, Sweden. main related habitat fish populations, access information fishing. For Norway the predicted decline local angler numbers consistent with a life‐cycle model recreational fisheries, while anticipated increase for three other countries contradicted model. anglers, growth expected both domestic foreign...
Smartphone applications for anglers that function as citizen science platforms are an alternative to the traditional survey methods used collect data from recreational fisheries. Comparisons between these two needed understand impacts of biases associated with generated smartphone applications. However, such comparisons uncommon, especially multiple fisheries over time and across space. In this study, we compared catch effort electronic platform offsite web-based recall consecutive (i)...
Global efforts are still under way to ensure sustainable development goal 6 of providing enough clean water sustain public health in many regions, and especially the Arctic where remoteness communities harsh climate make provision challenging. This study aimed examine sufficiency, accessibility, affordability supplies rural Greenland. The state supply was investigated using quantitative data on infrastructure demographics. Qualitative water-related practices perceptions were collected...
Catch-and-release (C&R) is a common practice in recreational angling for northern pike (Esox lucius), whereby the angler releases fish back into water after capture with expectation that it will survive negligible stress and physical injuries. This may not always be case, as hooking critical anatomical locations, such gills, esophagus, stomach, increases frequency of bleeding at hook wound has been recognized key determinant post-release mortality pike. Several factors (e.g. bait type size,...
ABSTRACT Recreational fisheries are dynamic social‐ecological systems. Identification of anticipated future trends supports the design policies and management to deliver outcomes for resources, users, communities. To this end, we applied a forecasting method (i.e., Delphi survey) recreational in five Nordic countries. The survey consisted three rounds included 20 diverse experts from each country. study focused on expert perceptions angler behaviors linked specific angling activities (e.g.,...
ABSTRACT Citizen science platforms are an alternative to traditional survey methods for collecting data from recreational fisheries. However, supplement collection, challenges associated with these must be addressed, such as lack of recruitment and sustained engagement. Some distinguish between contribution in that participants might register on a platform, but only subset starts contributing data, even fewer continue do so. To further understanding drivers behind contribution, we first...
Abstract Documenting species distributions and hybridization patterns is paramount for elucidating biogeography understanding speciation processes. Here we combined genetic specimen analysis environmental DNA (eDNA) to investigate the presence of American eel ( Anguilla rotrata ) × European anguilla hybrids in Greenland freshwater. We further tested use eDNA document by using mtDNA as a proxy hybrid occurrence. Overall, detected mainly but also mtDNA. This finding was validated sequencing,...
Abstract It is manifest that COVID-19 lockdowns extensively impacted human interactions with natural ecosystems. One example recreational fishing, an activity which involves nearly 1 in 10 people developed countries. Fishing licence sales and direct observations at popular angling locations suggest fishing effort increased substantially during lockdowns. However, the extent duration of this increase remain largely unknown due to a lack objective data. We used four years (2018 2021)...