Angling counts: Harnessing the power of technological advances for recreational fishing surveys

Fisheries Research, Год журнала: 2022, Номер 254, С. 106410 - 106410

Опубликована: Июнь 23, 2022

As the popularity of recreational fishing gathers global momentum, so does importance knowing number active anglers and their spatial behaviour. Conventional counting methods, however, can be inaccurate time-consuming. Here we present two novel methods to monitor applied in Kaunas water reservoir (ca 65 km2), Lithuania, comparing performance a conventional visual count. First, employed remotely piloted fixed wing drone which conducted 39 missions distributed over one year compared its accuracy land or boat-based counts. With these data developed linear model predict annual depending on weekday ice conditions. Second, used anonymous from popular GPS-enabled sonar device Deeper®, by explore underwater landscapes find fish. The usage probability was calibrated with angler observations drones using Bayesian demonstrating that at any given time ~2 % are during open season ~15 season. values were then estimate total anglers, daily records reservoir. predicted both drone-based sonar-based gave similar results 25 27 thousand within area period day surveyed, corresponded nearly 110 angling trips annually. Our study shows high potential fish finder digital devices for assessing activities through space time.

Язык: Английский

---

High-resolution app data reveal sustained increases in recreational fishing effort in Europe during and after COVID-19 lockdowns

Royal Society Open Science, Год журнала: 2023, Номер 10(7)

Опубликована: Июль 1, 2023

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 impact on European countries. show relative use 1.2-3.8-fold March-May 2020 generally remained elevated even end 2021. first lockdown also became more frequent weekdays. Statistical models explained 50-70% variation, suggesting were relatively consistent predictable through space time. Our study demonstrates behaviour can change rapidly response societal shifts, profound ecological, well-being economic implications. potential angler devices smartphone applications for analysis encourage extensive science industry collaborations take advantage information.

Язык: Английский

---

Status and perspectives for pikeperch (Sander lucioperca) stocks in the Baltic Sea region and central Europe

Estuarine Coastal and Shelf Science, Год журнала: 2024, Номер 303, С. 108801 - 108801

Опубликована: Май 21, 2024

Язык: Английский

---

Trophies, Technology, and Timescape in Fisheries Management, as Exemplified through Oklahoma's World Record Paddlefish Polyodon spathula

Fisheries, Год журнала: 2022, Номер 47(9), С. 381 - 394

Опубликована: Май 31, 2022

Abstract In this paper, we use world record Paddlefish Polyodon spathula catches to exemplify the origins and management of trophy fisheries human motivations involved within a continually compressing timescape advancing fish finding, harvest capability, communication information technologies. Conservation long-lived species such as Paddlefish, sturgeons (Acipenseridae), or other large currently challenged by ecological change habitat losses may be further expansion power through advances in fishing technology pursuit fish. Technological evolution outpace adaptive abilities managers safeguard these with sensible regulations—often multi-year, bureaucratic process. Managers must maintain focus on understanding nuances while proactively developing resilient frameworks capable responding challenges meaningful timely way. Our paper useful for professionals long-lived, fishes fisheries.

Язык: Английский

---

When fishers ask for more protection: Co-produced spatial management recommendations to protect seagrass meadows from leisure boating

Marine Policy, Год журнала: 2024, Номер 167, С. 106227 - 106227

Опубликована: Июнь 8, 2024

Язык: Английский

---

Live-imaging sonar use in Texas crappie fisheries: Examining population-level responses due to potential increases in exploitation

Fisheries, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

ABSTRACT The use of live-imaging sonar (LIS) has surged in popularity among anglers recent years, especially those targeting crappie Pomoxis spp. With LIS, have perceived an increase catchability and concerns been raised about the resilience populations. As attempt to provide information response these concerns, our study addressed potential for LIS angler catch rates exploitation rates, with implications overfishing. Using creel survey data collected on three regionally significant fisheries, we subset estimations by (i.e., users nonusers) crappie. Users caught harvested at significantly higher than nonusers. Results suggest that overall reservoirs. Although may increase, found overfishing was minimal, given fishing mortality estimates as high 79% a 254-mm minimum length limit. Our provides baseline evaluation current within popular fisheries while showcasing how increasing could affect sustainability populations across range growth scenarios.

Язык: Английский

---

90 years of catch data reveal changes in catch composition in the Australian east coast recreational marlin fishery

Reviews in Fish Biology and Fisheries, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Abstract Long-term continuous datasets that record fishery catch are key to predicting and managing changes in fisheries. Unfortunately, long-term rare for recreational fisheries, which hinders our ability understand within these Here we use several unconventional datasets, including tournament tagging program data, assess composition over time the Australian east coast marlin fishery. We found significant species size of time. In 1930s, was solely comprised striped ( Kajikia audax ) black Istiompax indica marlin. Black proportionally dominated 1940s 1980s, but proportions blue Makaira nigricans increased significantly from 1980s until present. Currently, is primarily black, a lesser extent Declines mean weight were also evident 1930s 1980s. Technological advances improving offshore access may have driven composition. Our results demonstrate potential change technology gear reshaping This highlights how particularly those offshore, changed with time, future technological dramatically alter fisheries globally. Graphic abstract

Язык: Английский

---

Emerging live sonar technologies in freshwater recreational fisheries: Issues and opportunities

Fisheries, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Abstract Debate about the potential benefits and risks of live sonar technology (also known as imaging forward-facing sonar) in freshwater recreational fisheries includes growing discussions regarding regulation. Synthesizing sparse literature, experiences coauthors, observations from traditional social media, we revealed a varied range outcomes for when this is used. Of particular concern ability to find fish that were previously cryptic target them ways increase capture efficiency (e.g., through snagging where legal or more accurately presenting lures baits); thus, increasing catchability. Conflicting views within fishing community “fair chase” aspect have prompted regulations. We anticipate continued debate around topic hope paper will inspire empirical research (ecological human dimensions) provide resource managers with insights guidance on how ensure used benefit management stakeholder interests.

Язык: Английский

---

Current Challenges in Fisheries and Aquaculture Sector: A Technological Perspective

Опубликована: Янв. 1, 2025

Язык: Английский

---

The decline of walleye populations: an ecological tipping point?

FACETS, Год журнала: 2025, Номер 10, С. 1 - 17

Опубликована: Янв. 1, 2025

Walleye/ogaa ( Sander vitreus (Mitchill)) (hereafter, walleye; ogaa = Ojibwe translation) populations have historically supported important multi-use, harvest-oriented fisheries. Despite intensive management, walleye declined in the midwestern United States raising concerns about sustainability of species. Numerous factors been implicated population declines, including climate change, habitat loss, invasive species, species-interactions, production overharvest (i.e., harvest consistently exceeding annual production), and changing angler behaviors. These negatively influenced natural recruitment contributed to depensatory dynamics. I provide a review perspective suggesting that current trajectory is at or nearing an ecological tipping point. Although fish are often considered compensatory density-dependent), appear prone depensation positive density dependence). My suggest management for misaligned. A change towards resource focus using ecosystem-based fisheries recognition as social–ecological systems needed conservation. If ensues, persistence will likely be further threatened because many drivers outside managerial control, those commonly used within control seemingly ineffective sustaining rehabilitating naturally reproducing populations.

Язык: Английский

---