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Article ; Online: Density effects on native and non‐native trout survival in streams

Huntsman, Brock M. / Flynn, Lauren / Caldwell, Colleen A. / Lynch, Abigail J. / Abadi, Fitsum

Ecology of Freshwater Fish. 2023 Apr., v. 32, no. 2 p.464-476

2023

Abstract: Environmental stressors associated with a changing climate and non‐native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of ... ...

Abstract	Environmental stressors associated with a changing climate and non‐native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of a population's distribution. We collected capture–mark–recapture data for Rio Grande cutthroat trout (RGCT, Oncorhynchus clarkii virginalis) at the trailing edge of all cutthroat trout distributions from eight northern New Mexico populations. We used a factorial sampling design from streams characterised as “cool” or “warm” and whether RGCT were sympatric with non‐native brown trout (Salmo trutta). We tested competing hypotheses that warm temperatures, reduced flows, high densities and sympatry with brown trout would negatively impact RGCT apparent survival rates. We found the strongest evidence for a non‐native trout interaction with total trout density affecting RGCT apparent survival rates. Our results are consistent with patterns observed in northern cutthroat trout populations where non‐native salmonids negatively impacted apparent survival rates. We also found that a negative density effect was observed on allopatric RGCT and sympatric brown trout apparent survival, but a positive density effect was observed for sympatric RGCT. These results suggest higher density populations of RGCT may be more resilient to displacement by non‐native trout than low‐density populations.
Keywords	Oncorhynchus clarkii ; Salmo trutta ; allopatry ; climate ; ecology ; freshwater fish ; indigenous species ; mark-recapture studies ; sympatry ; trout ; New Mexico
Language	English
Dates of publication	2023-04
Size	p. 464-476.
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	913011-1
ISSN	0906-6691
ISSN	0906-6691
DOI	10.1111/eff.12699
Database	NAL-Catalogue (AGRICOLA)

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Article: Asking nicely: Best practices for requesting data

Midway, StephenR. / Sievert, Nicholas A. / Lynch, Abigail J. / Whittier, Joanna B. / Pope, Kevin L.

Ecological informatics. 2022 June 18,

2022

Abstract: Compiling disparate datasets into publicly available composite databases helps natural resource communities explore ecological trends and effectively manage across spatiotemporal scales. Though some studies have reported on the database construction ... ...

Abstract	Compiling disparate datasets into publicly available composite databases helps natural resource communities explore ecological trends and effectively manage across spatiotemporal scales. Though some studies have reported on the database construction phase, fewer have evaluated the data acquisition and distribution process. To facilitate future data sharing collaborations, Louisiana State University surveyed data providers and requestors to understand the characteristics of effective data requests and sharing. Data providers were largely U.S. natural resource agency personnel, and they reported that unclear data requests, privacy issues, and rigid timelines and formats were the greatest barriers toward providing data, but that they were motivated by improving science and collaboration. Data requestors identified challenges such as evolving needs, standardization issues, and insufficient resources (time and funding) as barriers to compiling data for these types of efforts. In a time of big data, open access, and collaboration, significant scientific advances can be made with effective requests and inclusion of data sets into larger and more powerful databases.
Keywords	data collection ; databases ; human resources ; Louisiana
Language	English
Dates of publication	2022-0618
Publishing place	Elsevier B.V.
Document type	Article
Note	Pre-press version
ZDB-ID	2212016-6
ISSN	1878-0512 ; 1574-9541
ISSN (online)	1878-0512
ISSN	1574-9541
DOI	10.1016/j.ecoinf.2022.101729
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Article: Characterizing mauka-to-makai connections for aquatic ecosystem conservation on Maui, Hawaiʻi

Wilmot, Ella / Wong, Jesse / Tsang, Yinphan / Lynch, Abigail J. / Infante, Dana / Oleson, Kirsten / Strauch, Ayron / Clilverd, Hannah

Elsevier B.V. Ecological informatics. 2022 Sept., v. 70

2022

Abstract: Mauka-to-makai (mountain to sea in the Hawaiian language) hydrologic connectivity – commonly referred to as ridge-to-reef – directly affects biogeochemical processes and socioecological functions across terrestrial, freshwater, and marine systems. The ... ...

Abstract	Mauka-to-makai (mountain to sea in the Hawaiian language) hydrologic connectivity – commonly referred to as ridge-to-reef – directly affects biogeochemical processes and socioecological functions across terrestrial, freshwater, and marine systems. The supply of freshwater to estuarine and nearshore environments in a ridge-to-reef system supports the food, water, and habitats utilized by marine fauna. In addition, the ecosystem services derived from this land-to-sea connectivity support social and cultural practices (hereafter referred to as socio-cultural) including fishing, aquaculture, wetland agriculture, religious ceremonies, and recreational activities. To effectively guide island resource management, a better understanding of the linkages from ridge-to-reef across natural and social usages is critical, particularly in the context of climate change, with anticipated increasing temperature and shifting precipitation patterns. The objective of this study was to identify spatial linkages that promote multiple and diverse uses, following the ridge-to-reef concept, at an island-wide scale to identify regions of high conservation importance for aquatic resources. We selected the Island of Maui as a study representative of many Pacific islands. Diverse datasets, including agricultural lands within watersheds, wetland locations, presence of stream species, indicators of freshwater input from streams, coral cover, nearshore fish biomass, socio-cultural data such as fishpond locations, wetland taro cultivation, beach recreation use, and lastly the dynamically downscaled Coupled Model Intercomparison Project Phase (CMIP5) future climate projections scenarios (Representative Concentration Pathway (RCP) 4.5 & 8.5) were used to examine the spatial linkages through hydrological connectivity from land to the sea. Zonation spatial planning software was used to prioritize areas of high management and conservation value and to help inform aquatic resources management. The resulting prioritized areas included many minimally disturbed watersheds in east Maui and western nearshore and coastal zones that are adjacent to diverse coral reefs. These results are driven by the importance of fish biomass and coral reef distribution as well as traditional wetland taro cultivation and coastal access points for recreation. These results underline the importance of examining ridge-to-reef systems for aquatic resource management and including important social and cultural values in resource management upon planning adaptation strategies for climate change. Improving our understanding of diverse natural and socio-cultural influences on habitat conditions and their values in these areas provides an opportunity to strategically plan future management and conservation actions.
Keywords	Maui ; aquaculture ; aquatic ecosystems ; biomass ; climate ; climate change ; computer software ; coral reefs ; corals ; data collection ; estuaries ; fauna ; fish ; fish ponds ; freshwater ; models ; recreation ; resource management ; streams ; taro ; temperature ; wetlands
Language	English
Dates of publication	2022-09
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	2212016-6
ISSN	1878-0512 ; 1574-9541
ISSN (online)	1878-0512
ISSN	1574-9541
DOI	10.1016/j.ecoinf.2022.101704
Database	NAL-Catalogue (AGRICOLA)

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Article: Intrinsic and extrinsic drivers of life‐history variability for a south‐western cutthroat trout

Huntsman, Brock M / Lynch, Abigail J / Caldwell, Colleen A / Abadi, Fitsum

Ecology of freshwater fish. 2021 Jan., v. 30, no. 1

2021

Abstract: The impacts of climate change on cold‐water fishes will likely negatively manifest in populations at the trailing edge of their distributions. Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis, RGCT) occupy arid south‐western U.S. streams at ... ...

Abstract	The impacts of climate change on cold‐water fishes will likely negatively manifest in populations at the trailing edge of their distributions. Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis, RGCT) occupy arid south‐western U.S. streams at the southern‐most edge of all cutthroat trout distributions, making RGCT particularly vulnerable to the anticipated warming and drying in this region. We hypothesised that RGCT possess a portfolio of life‐history traits that aid in their persistence within streams of varying temperature and stream drying conditions. We used otolith and multistate capture–mark–recapture data to determine how these environmental constraints influence life‐history trait expression (length‐ and age‐at‐maturity) and demography in RGCT populations from northern New Mexico, United States. We found evidence that RGCT reached maturity fastest at sites with warm stream temperatures and low densities. We did not find a strong relationship between discharge and any demographic rate, although apparent survival of mature RGCT decreased as stream temperature increased. Our study suggests plasticity in trait expression may be a life‐history characteristic which can assist trailing edge populations like RGCT persist in a changing climate.
Keywords	Oncorhynchus clarkii ; climate change ; cold-water fish ; demography ; drying ; life history ; otoliths ; streams ; water temperature ; New Mexico
Language	English
Dates of publication	2021-01
Size	p. 100-114.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	913011-1
ISSN	0906-6691
ISSN	0906-6691
DOI	10.1111/eff.12567
Database	NAL-Catalogue (AGRICOLA)

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Article: Interacting Effects of Density‐Dependent and Density‐Independent Factors on Growth Rates in Southwestern Cutthroat Trout Populations

Huntsman, Brock M. / Lynch, Abigail J. / Caldwell, Colleen A.

Transactions of the American Fisheries Society. 2021 Sept., v. 150, no. 5

2021

Abstract: Density‐dependent (DD) and density‐independent (DI) effects play an important role in shaping fish growth rates, an attribute that correlates with many life history traits in fishes. Consequently, understanding the extent to which DD and DI effects ... ...

Abstract	Density‐dependent (DD) and density‐independent (DI) effects play an important role in shaping fish growth rates, an attribute that correlates with many life history traits in fishes. Consequently, understanding the extent to which DD and DI effects influence growth rates is valuable for fisheries assessments because it can inform managers about how populations may respond as environmental conditions continue to change (e.g., threats from climate change). We used a Rio Grande Cutthroat Trout Oncorhynchus clarkii virginalis (RGCT) capture–mark–recapture data set collected over 2 years along a temperature and density gradient in northern New Mexico streams to test the extent to which DD and DI effects interact to influence specific growth rates. We found that temperature (DI) and density (DD) interacted with RGCT life stage (i.e., immature or mature) to affect growth rates. We only detected evidence of a negative DD effect on RGCT growth for the immature fraction of a population when exposed to the warmest stream temperatures. Our results suggest that competition most strongly affected the immature portion of RGCT populations, and this effect was only detectable when temperatures were warmest and energetic stress was likely at its highest. The quadratic relationship between temperature and growth rates also demonstrated that stream temperatures were below as well as above optimal growth temperatures for RGCT. Growth rates in our RGCT populations were influenced by complex interactions of DD and DI effects, and our results suggest that the negative consequences of warming trends associated with climate change on RGCT populations may be exacerbated by DD effects.
Keywords	Oncorhynchus clarkii ; animal growth ; climate change ; data collection ; life history ; mark-recapture studies ; streams ; New Mexico
Language	English
Dates of publication	2021-09
Size	p. 651-664.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	416724-7
ISSN	0002-8487
ISSN	0002-8487
DOI	10.1002/tafs.10319
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Can the planetary health concept save freshwater biodiversity and ecosystems?

Cooke, Steven J / Lynch, Abigail J / Tickner, David / Abell, Robin / Dalu, Tatenda / Fiorella, Kathryn J / Raghavan, Rajeev / Harrison, Ian J / Jähnig, Sonja C / Vollmer, Derek / Carpenter, Steve

The Lancet. Planetary health

2024 Volume 8, Issue 1, Page(s) e2–e3

MeSH term(s)	Ecosystem ; Biodiversity
Language	English
Publishing date	2024-01-10
Publishing country	Netherlands
Document type	Journal Article
ISSN	2542-5196
ISSN (online)	2542-5196
DOI	10.1016/S2542-5196(23)00275-9
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: COVID-19 influences on US recreational angler behavior.

Midway, Stephen R / Lynch, Abigail J / Peoples, Brandon K / Dance, Michael / Caffey, Rex

PloS one

2021 Volume 16, Issue 8, Page(s) e0254652

Abstract: Recreational angling in the United States (US) is largely a personal hobby that scales up to a multibillion-dollar economic activity. Given dramatic changes to personal decisions and behaviors resulting from the COVID-19 pandemic, we surveyed ... ...

Abstract	Recreational angling in the United States (US) is largely a personal hobby that scales up to a multibillion-dollar economic activity. Given dramatic changes to personal decisions and behaviors resulting from the COVID-19 pandemic, we surveyed recreational anglers across the US to understand how the pandemic may have affected their fishing motivations and subsequent activities. Nearly a quarter million anglers from 10 US states were invited to participate in the survey, and almost 18,000 responded. Anglers reported numerous effects of the pandemic, including fishing access restrictions. Despite these barriers, we found that the amount of fishing in the spring of 2020 was significantly greater-by about 0.2 trips per angler-than in non-pandemic springs. Increased fishing is likely associated with our result that most respondents considered recreational angling to be a COVID-19 safe activity. Nearly a third of anglers reported changing their motivation for fishing during the pandemic, with stress relief being more popular during the pandemic than before. Driven partly by the perceived safety of social fishtancing, recreational angling remained a popular activity for many US anglers during spring 2020.
MeSH term(s)	Adaptation, Psychological ; COVID-19/psychology ; Humans ; Physical Distancing ; Recreation/psychology ; Surveys and Questionnaires ; United States/epidemiology
Language	English
Publishing date	2021-08-18
Publishing country	United States
Document type	Journal Article ; Multicenter Study
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0254652
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: New global high-resolution centerlines dataset of selected river systems

Basher, Zeenatul / Lynch, Abigail J. / Taylor, William W.

Data in Brief. 2018 Oct., v. 20

2018

Abstract: We present the first high resolution (1:20,000) river centerlines shapefiles from 50 large rivers across the world. Rivers were selected based on the criteria of having more than 1000 km length and which have been reported to have a significant ... ...

Abstract	We present the first high resolution (1:20,000) river centerlines shapefiles from 50 large rivers across the world. Rivers were selected based on the criteria of having more than 1000 km length and which have been reported to have a significant contribution to global fishery production. Since large rivers often span multiple countries, the degree of changes (i.e., anthropogenic or climate derived) varies from region to region. These high-resolution layers were developed to enable researchers to delineate accurate river length, from headwaters regions to their delta and assess or visualize the ongoing changes more accurately in these river systems. Further, these polylines could be used in coordination with satellite derived environmental or landscape variables for ecological research (e.g. predicting biodiversity, estimating biomass).
Keywords	biodiversity ; biomass ; climate ; data collection ; fisheries ; landscapes ; rivers ; satellites ; shapefile
Language	English
Dates of publication	2018-10
Size	p. 1552-1555.
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	2786545-9
ISSN	2352-3409
ISSN	2352-3409
DOI	10.1016/j.dib.2018.09.016
Database	NAL-Catalogue (AGRICOLA)

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Article: Fishing for Food: Quantifying Recreational Fisheries Harvest in Wisconsin Lakes

Embke, Holly S. / Douglas Beard, T., Jr / Lynch, Abigail J. / Vander Zanden, M. Jake

Fisheries. 2020 Dec., v. 45, no. 12

2020

Abstract: Recreational fisheries have high economic worth, valued at US$190 billion globally. An important, but underappreciated, secondary value of recreational catch is its role as a source of food. This contribution is poorly understood due to difficulty in ... ...

Abstract	Recreational fisheries have high economic worth, valued at US$190 billion globally. An important, but underappreciated, secondary value of recreational catch is its role as a source of food. This contribution is poorly understood due to difficulty in estimating recreational harvest at spatial scales beyond a single system, as traditionally estimated from individual creel surveys. Here, we address this gap using 28‐year creel surveys of ~300 Wisconsin inland lakes. We develop a statistical model of recreational harvest for individual lakes and then scale‐up to unsurveyed lakes (3,769 lakes; 73% of statewide lake surface area). We generate a statewide estimate of recreational lake harvest of ~4,200 metric tons and an estimated annual angler consumption rate of ~1.1 kg, nearly equal to the total estimated United States per capita freshwater fish consumption. An important ecosystem service, recreational harvest makes significant contributions to human diets and plays an often‐unheralded role in food security.
Keywords	economic valuation ; ecosystem services ; fish consumption ; food security ; freshwater fish ; lakes ; statistical models ; surface area ; Wisconsin
Language	English
Dates of publication	2020-12
Size	p. 647-655.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	430448-2
ISSN	0363-2415
ISSN	0363-2415
DOI	10.1002/fsh.10486
Database	NAL-Catalogue (AGRICOLA)

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Article: New global high-resolution centerlines dataset of selected river systems.

Basher, Zeenatul / Lynch, Abigail J / Taylor, William W

Data in brief

2018 Volume 20, Page(s) 1552–1555

Abstract	We present the first high resolution (1:20,000) river centerlines shapefiles from 50 large rivers across the world. Rivers were selected based on the criteria of having more than 1000 km length and which have been reported to have a significant contribution to global fishery production. Since large rivers often span multiple countries, the degree of changes (i.e., anthropogenic or climate derived) varies from region to region. These high-resolution layers were developed to enable researchers to delineate accurate river length, from headwaters regions to their delta and assess or visualize the ongoing changes more accurately in these river systems. Further, these polylines could be used in coordination with satellite derived environmental or landscape variables for ecological research (e.g. predicting biodiversity, estimating biomass).
Language	English
Publishing date	2018-09-11
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2786545-9
ISSN	2352-3409
ISSN	2352-3409
DOI	10.1016/j.dib.2018.09.016
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