Using the Resist‐Accept‐Direct management framework to respond to climate‐driven transformations in marine ecosystems

Fisheries Management and Ecology, Год журнала: 2022, Номер 29(4), С. 409 - 422

Опубликована: Март 19, 2022

Abstract Climate change is impacting natural ecosystems and the services they provide at an unprecedented rate, yet management not keeping pace with radical ecosystem transformations. Management in marine systems primarily designed to regulate fishing pressures, which may be of limited use addressing large‐scale climate impacts. The Resist‐Accept‐Direct (RAD) a flexible, novel framework that gives managers way structure plan how respond shifts/transformations ecosystems. We present case studies broad scale impacts outline responses fit into RAD concept. address collapse kelp forest northern California examine potential policy guiding restoration strategies can organised. conclude response most transformations has been resist strategy includes adaptive management, we suggest for forests provides best option moving forward. will useful have reached their tipping points now require tools thinking as face stressors unpredictable future.

Язык: Английский

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Black Crappie Influences on Walleye Natural Recruitment in Northern Wisconsin Lakes

North American Journal of Fisheries Management, Год журнала: 2022, Номер 42(5), С. 1202 - 1214

Опубликована: Июль 15, 2022

Abstract Walleye Sander vitreus natural recruitment has declined in northern Wisconsin lakes over time. Several factors have been implicated to explain declines Wisconsin, including climate change, Largemouth Bass Micropterus salmoides interactions, less desirable fish communities, production overharvest, and depensatory effects on recruit survival. Previous research other systems suggested that White Crappie Pomoxis annularis negatively influence recruitment, but interactions between Black nigromaculatus not examined. We evaluated trends age‐0 relative abundance (catch per effort [CPE]) collected during 1991–2017. Specifically, we tested for (1) CPE time, (2) a relationship CPE, (3) the of several abiotic biotic covariates (including CPE) recruitment. Age‐0 increased significantly Within lakes, showed threshold effect such was always low when high. Of variability relationship, only significant. Our results suggest may recruitment; however, caution our findings reveal pattern mechanistic explanation negative species. Additional is needed test inform comanagement these

Язык: Английский

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Understanding the Role of Recreational Angling Technology in Angler Expectations of Catch, Trip Catch, and Angler Satisfaction

Fisheries, Год журнала: 2024, Номер 49(10), С. 463 - 474

Опубликована: Сен. 5, 2024

Abstract Rapid technological advancement often receives a mix of criticism and welcome implementation. Fishing technologies, such as sonar, are believed to enable anglers be more efficient effective in their angling. There concerns from managers increased catch by technology users. We assessed the relationships between use—defined use imaging sonar underwater cameras—and catch, angler expectations trip satisfaction using dual intercept creel survey. Angling technologies were used 80% 79% intercepted boat ice anglers, respectively, but only 3.9% shore anglers. expected for game fish not panfish had no effect on actual either group. Most caught fewer than expected, did improve ability meet expectations. Technology was associated with decreased overall among These results suggest that about fishing increasing may warranted. Rather, affect negatively impact satisfaction, potentially influencing behavior.

Язык: Английский

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Assessing factors related to Walleye stocking success in the Midwestern United States

North American Journal of Fisheries Management, Год журнала: 2024, Номер unknown

Опубликована: Сен. 15, 2024

Abstract Objective The objective of this study was to evaluate stocking success Walleye Sander vitreus in lakes and reservoirs across the Midwestern United States inform practices for state agencies. Demand may increase if climate change limits potential natural recruitment lakes. Consequently, strategic distribution maximize fishing opportunities. Methods We synthesized data from 2226 fry fingerling events on 653 used random forest algorithms mixed‐effects linear models identify abiotic biotic factors related success. Result Latitude year explained relatively little variation compared within‐lake variation. Relative abundance Largemouth Bass Micropterus nigricans an important indicator fingerlings, with generally decreasing increased bass abundance. There interaction between lake surface area growing degree‐days, as large (>2500 ha) seemed be more conducive regardless degree‐days. that we developed did not accurately predict exact levels but were 92–94% accurate predicting whether both fingerlings would at or above 50th percentile. Conclusion These findings help management allocation suggest future increases degree‐days could limit effectiveness some

Язык: Английский

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Biotic and abiotic factors that influence Walleye recruitment in stocked lakes in Michigan

North American Journal of Fisheries Management, Год журнала: 2023, Номер 43(6), С. 1673 - 1686

Опубликована: Ноя. 7, 2023

Abstract Objective In recent decades, widespread evidence of declining Walleye Sander vitreus recruitment in the Midwestern United States has raised concerns about diminishing ecological benefits and fishing opportunities, which turn resulted natural resource agencies using stocking to supplement populations. Success events vary; thus, evaluating external factors that influence success resulting from or production is critical for improved management. Methods We evaluated influencing relative 98 lakes stocked annually with by integrating 20 years data fisheries assessment abiotic data. indexed as abundance cohorts sources combined used boosted regression tree modeling identify variables are associated varying recruitment. Result Growing degree‐days at age 1, shoreline development index, mean depth, 2 were most important variables. The model explained 17% observed variability A positive relationship between growing was observed, whereas lake depth had a negative Secondarily predictors surface area, spring warming rate, Northern Pike Esox lucius abundance, 0. general, positively these predictors, exceptions rates >0.3°C/day being exposed >3500 Conclusion Our results indicate thermal addition characteristics drivers waters highlights potential managers use this information prioritize efforts temperate lakes.

Язык: Английский

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