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Rapid technological advancement often receives a mix of criticism and welcome implementation. Fishing technologies, such as sonar, are believed to enable anglers to be more efficient and effective in their angling. There are concerns from anglers and managers of increased catch by technology users. We assessed the relationships between technology use—defined as the use of imaging technology such as sonar and underwater cameras—and catch, angler expectations of catch, and trip satisfaction using a dual intercept creel survey. Angling technologies were used by 80% and 79% of intercepted boat and ice anglers, respectively, but only 3.9% of shore anglers. Fishing technologies increased expected catch for game fish anglers,...
Categories: Publication;
Types: Citation
Freshwater is a critical driver for island ecosystems and essential part of the water cycle in tropical islands, which is threaten by climate change. Changes in streamflow patterns may impact streams, estuarine, and coastal habitats. In Hawai‘i, these habitats support five native stream fish species. To examine how changes in streamflow have impacted habitat quality for these native aquatic species, an ongoing project has been examining statewide long-term stream records. This study will examine historical extreme weather patterns, including flood and drought, to describe the characteristics and flow patterns of stream habitats in HawaiĘ»i. This information will then be associated with observed fish populations...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2022,
CASC,
National CASC,
Pacific Islands,
Pacific Islands CASC,
Species are expected to shift their distributions to higher latitudes, greater elevations, and deeper depths in response to climate change, reflecting an underlying hypothesis that species will move to cooler locations. However, species response to climate change is poorly understood and species range shifts may be related to climate change exposure. This project was designed to find when a new climate normal emerges beyond different thresholds of natural climate variability with the goal to help natural resource managers, other practitioners, and scientists concerned with emerging climate signals. Estimates are provided for the time (year) when a biologically-relevant temperature signal emerges (time of emergence...
As climate change accelerates, understanding which species are most vulnerable and why they are vulnerable will be vital to inform conservation action. Climate change vulnerability assessments (CCVAs) are tools to assess species' responses to climate change, detect drivers of vulnerability, and inform conservation planning. CCVAs are commonly composed of three elements: exposure, sensitivity, and adaptive capacity. Incorporating all three elements can be challenging, and including only two of the three elements may be a more feasible approach in many systems. Although two-element CCVA approaches have become more common, their utility and procedures remain poorly documented. We conducted a literature review to explore...
Categories: Publication;
Types: Citation
Collection of factsheets that provide summaries of observed species range shifts in the United States by Climate Adaptation Science Center region using the CoRE (Contractions and Range Expansions) Database.
Categories: Publication;
Types: Citation
Among the most widely predicted climate change-related impacts to biodiversity are geographic range shifts, whereby species shift their spatial distribution to track their climate niches. A series of commonly articulated hypotheses have emerged in the scientific literature suggesting species are expected to shift their distributions to higher latitudes, greater elevations, and deeper depths in response to rising temperatures associated with climate change. Yet, many species are not demonstrating range shifts consistent with these expectations. Here, we evaluate the impact of anthropogenic climate change (specifically, changes in temperature and precipitation) on species’ ranges, and assess whether expected range...
Categories: Publication;
Types: Citation;
Tags: Depth,
Distribution Shift,
Elevation,
Global Change,
Latitude,
This code was used to estimate that inland recreational fisheries harvest estimates in the United States. Code purpose and order This code is intended to allow readers/reviewers the ability to repeat analyses in the paper. The first script to run is Preparing_CreelCat_Data.R. This script will load the csv files downloaded from the CreelCat database and then prepare them following methods described in detail from Robertson et al. (2024) to be used in the CreelCatch model. If you don’t want to run the script and just want to access the final output of the script, you can simply open Data\Model_dat.RData. The second script to run is Downloading_NHD_Data.R. This script will load NHD data from every state and format...
Inland fisheries face multiple, intensifying threats (i.e., proximate human pressures causing degraded ecological attributes) from land development, climate change, resource extraction, and competing demands for water resources. Planning for resiliency amidst these pressures requires understanding the factors that influence an inland fishery’s capacity to adapt to system changes under multiple threats. Incorporating expert knowledge can illuminate priority fisheries and provide important insights where data are otherwise limited. Using data from a global survey of 536 fishery professionals, this study examines perceptions of threats and adaptive capacity (i.e., ability to mitigate or respond to change) in major...
Categories: Publication;
Types: Citation
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