As ecosystems change, understanding the consequences for fish population dynamics and habitat use is essential for their management. Using white perch (Morone americana) survey data on early life stages collected during a long-term ichthyoplankton monitoring program in the Hudson River (New York, USA), an ecosystem under immense pressure from climate change, ecological shifts, and anthropogenic activities, we evaluated the drivers of changes in egg abundance and spawning habitat between 1980-2017. Results indicated that egg abundance is associated nonlinearly with temperature, conductivity, discharge, depth, location, and the week of year. Additionally, large changes in hotspots of spawning activity within the Hudson River were identified and the lower extent of spawning habitat has moved upriver since 1980. We also found that egg abundance has declined within the river over time. This study indicates that the dynamics of white perch early life histories and spawning habitat are changing. It also highlights the utility of a long-term monitoring program for broadening our understanding of fish ecology in the age of big data in changing ecosystems.
{"title":"Understanding the dynamics of fish spawning phenology and habitat in a changing ecosystem using a long-term ichthyoplankton monitoring dataset","authors":"Noah Hunt, Katrina Rokosz, Yong Chen","doi":"10.1139/cjfas-2023-0361","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0361","url":null,"abstract":"As ecosystems change, understanding the consequences for fish population dynamics and habitat use is essential for their management. Using white perch (Morone americana) survey data on early life stages collected during a long-term ichthyoplankton monitoring program in the Hudson River (New York, USA), an ecosystem under immense pressure from climate change, ecological shifts, and anthropogenic activities, we evaluated the drivers of changes in egg abundance and spawning habitat between 1980-2017. Results indicated that egg abundance is associated nonlinearly with temperature, conductivity, discharge, depth, location, and the week of year. Additionally, large changes in hotspots of spawning activity within the Hudson River were identified and the lower extent of spawning habitat has moved upriver since 1980. We also found that egg abundance has declined within the river over time. This study indicates that the dynamics of white perch early life histories and spawning habitat are changing. It also highlights the utility of a long-term monitoring program for broadening our understanding of fish ecology in the age of big data in changing ecosystems.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141922472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Garth Covernton, Adam Metherel, Bailey C. McMeans, K. Bucci, Desiree Langenfeld, Rachel McNamee, Cody Veneruzzo, Matthew J. Hoffman, D. M. Orihel, Michael J. Paterson, Jennifer Provencher, M. D. Rennie, Chelsea M Rochman
Using 10-m diameter mesocosms in a Canadian boreal lake, we investigated the effects of MP exposure on the body weight and diet of yellow perch (Perca flavescens) and the fatty acid composition of yellow perch and zooplankton. We exposed the aquatic ecosystem within seven mesocosms for 10 weeks to a mixture of polyethylene, polystyrene, and polyethylene terephthalate fragments, ranging in nominal addition concentrations from 6 to 29,240 particles L-1 (although realized water column concentrations were lower), as well as two negative controls. Increasing MP exposure did not affect yellow perch body weight (growth) or diet, or the overall fatty acid composition of yellow perch muscle or zooplankton. Results were highly variable across mesocosms. Despite high levels of MP ingestion by yellow perch, we did not find evidence of MPs leading to food dilution or any other effect where we could anticipate impacts on food web structure.
{"title":"Increasing microplastic exposure had minimal effects on fatty acid composition in zooplankton and yellow perch in a large, in-lake mesocosm experiment","authors":"Garth Covernton, Adam Metherel, Bailey C. McMeans, K. Bucci, Desiree Langenfeld, Rachel McNamee, Cody Veneruzzo, Matthew J. Hoffman, D. M. Orihel, Michael J. Paterson, Jennifer Provencher, M. D. Rennie, Chelsea M Rochman","doi":"10.1139/cjfas-2024-0149","DOIUrl":"https://doi.org/10.1139/cjfas-2024-0149","url":null,"abstract":"Using 10-m diameter mesocosms in a Canadian boreal lake, we investigated the effects of MP exposure on the body weight and diet of yellow perch (Perca flavescens) and the fatty acid composition of yellow perch and zooplankton. We exposed the aquatic ecosystem within seven mesocosms for 10 weeks to a mixture of polyethylene, polystyrene, and polyethylene terephthalate fragments, ranging in nominal addition concentrations from 6 to 29,240 particles L-1 (although realized water column concentrations were lower), as well as two negative controls. Increasing MP exposure did not affect yellow perch body weight (growth) or diet, or the overall fatty acid composition of yellow perch muscle or zooplankton. Results were highly variable across mesocosms. Despite high levels of MP ingestion by yellow perch, we did not find evidence of MPs leading to food dilution or any other effect where we could anticipate impacts on food web structure.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christopher N. Rooper, Jennifer L. Boldt, Andres Uriarte, Cecilie Hansen, Tim Ward, Sarah Gaichas
Canadian Journal of Fisheries and Aquatic Sciences, Volume 81, Issue 8, Page 984-989, August 2024. Small pelagic fishes occupy an important trophic role in every global aquatic ecosystem, and many species are heavily exploited by fisheries, including some of the largest and most valuable capture fisheries in the world. In November 2022, a symposium on small pelagic fish titled “Small Pelagic Fish: New Frontiers in Science and Sustainable Management” was cohosted by PICES, ICES, and FAO in Lisbon, Portugal. This special issue contains a collection of research manuscripts that explore approaches currently being used and developed to assess and manage small pelagic fishes. In particular, this issue covers topics on novel approaches to surveying small pelagic fishes, incorporating environmental covariates into management, management strategy evaluation, and aspects of the economics of small pelagic fisheries. The conclusions highlight the importance of new approaches that seek to enhance small pelagic fish surveys and ecosystem monitoring, incorporate that ecosystem information into management strategy evaluation, and predict the potential impacts of ecosystem changes on outcomes for economies and communities that rely on sustainable populations of small pelagic fishes.
{"title":"Small pelagic fish: new frontiers in science and sustainable management","authors":"Christopher N. Rooper, Jennifer L. Boldt, Andres Uriarte, Cecilie Hansen, Tim Ward, Sarah Gaichas","doi":"10.1139/cjfas-2024-0104","DOIUrl":"https://doi.org/10.1139/cjfas-2024-0104","url":null,"abstract":"Canadian Journal of Fisheries and Aquatic Sciences, Volume 81, Issue 8, Page 984-989, August 2024. <br/> Small pelagic fishes occupy an important trophic role in every global aquatic ecosystem, and many species are heavily exploited by fisheries, including some of the largest and most valuable capture fisheries in the world. In November 2022, a symposium on small pelagic fish titled “Small Pelagic Fish: New Frontiers in Science and Sustainable Management” was cohosted by PICES, ICES, and FAO in Lisbon, Portugal. This special issue contains a collection of research manuscripts that explore approaches currently being used and developed to assess and manage small pelagic fishes. In particular, this issue covers topics on novel approaches to surveying small pelagic fishes, incorporating environmental covariates into management, management strategy evaluation, and aspects of the economics of small pelagic fisheries. The conclusions highlight the importance of new approaches that seek to enhance small pelagic fish surveys and ecosystem monitoring, incorporate that ecosystem information into management strategy evaluation, and predict the potential impacts of ecosystem changes on outcomes for economies and communities that rely on sustainable populations of small pelagic fishes.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141884007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Scott Alexander Jackson, Kelsey N Lucas, Kevin E. Wehrly, Karen Alofs
Growing impacts of climate change necessitate predicting species' vulnerability to altered ecosystems. Assessing vulnerability requires understanding how species' physiology, life history, and ecology vary among populations and can be altered by behavioral, plastic, and evolutionary adaptations. To examine intraspecific variation in sensitivity to climate change, we measured metabolic responses to acute and chronic temperature exposures in three rearing pond populations of walleye (Sander vitreus), a cool-water-adapted fish species threatened by climate change. We show significant differences among rearing pond populations in response to increasing temperatures which may originate from broodstock, developmental plasticity, and acclimation. Our results indicate northern walleye may be more tolerant of acute and chronic exposure to higher temperatures by being able to maintain a higher aerobic scope than more southern populations. Furthermore, even over small geographic distances, populations can have significantly different physiological responses to environmental stressors. Quantifying variation in population-specific metabolic responses can inform predictions of growth, reproduction, and fitness across a species range and clarify the importance of within-species diversity in determining vulnerability to environmental stressors.
{"title":"Intraspecific Variation in Metabolic Responses of a Cool Water Fish to Increasing Temperatures","authors":"Scott Alexander Jackson, Kelsey N Lucas, Kevin E. Wehrly, Karen Alofs","doi":"10.1139/cjfas-2023-0377","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0377","url":null,"abstract":"Growing impacts of climate change necessitate predicting species' vulnerability to altered ecosystems. Assessing vulnerability requires understanding how species' physiology, life history, and ecology vary among populations and can be altered by behavioral, plastic, and evolutionary adaptations. To examine intraspecific variation in sensitivity to climate change, we measured metabolic responses to acute and chronic temperature exposures in three rearing pond populations of walleye (Sander vitreus), a cool-water-adapted fish species threatened by climate change. We show significant differences among rearing pond populations in response to increasing temperatures which may originate from broodstock, developmental plasticity, and acclimation. Our results indicate northern walleye may be more tolerant of acute and chronic exposure to higher temperatures by being able to maintain a higher aerobic scope than more southern populations. Furthermore, even over small geographic distances, populations can have significantly different physiological responses to environmental stressors. Quantifying variation in population-specific metabolic responses can inform predictions of growth, reproduction, and fitness across a species range and clarify the importance of within-species diversity in determining vulnerability to environmental stressors.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141803163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoe Adria Kane, Matthew P. Duda, Brigitte Simmatis, J. Smol
Seabirds are biovectors that transport large concentrations of nutrients from their marine feeding areas to terrestrial breeding grounds. Here, we used subfossil cladoceran assemblages to assess if, and how, changes in the world’s largest colony of Leach’s Storm Petrels affected the structure of Cladocera assemblages over the past ~1700 years. Using sediment cores from four ponds impacted by Leach’s Storm-Petrel colonies on Baccalieu Island (NL, Canada), we observed a consistent transition in cladoceran assemblages from benthic/littoral to pelagic taxa in association with high seabird presence. This shift aligns with previously published limnological changes that tracked the growth of the colony. Compared to trends in sedimentary chlorophyll-a, pelagic cladoceran taxa lagged behind algal shifts driven by seabird activity. The main drivers of cladoceran assemblage shifts were likely alterations to the physical habitat structure and food availability driven by seabird inputs. Furthermore, deposition of calcium from seabirds may have also contributed to changing the composition of cladoceran communities. Our study provides information on food web shifts associated with seabird-driven eutrophication, which can be compared to future paleoecological studies.
{"title":"Seabird inputs drive changes in Cladocera assemblages in freshwater ponds","authors":"Zoe Adria Kane, Matthew P. Duda, Brigitte Simmatis, J. Smol","doi":"10.1139/cjfas-2024-0063","DOIUrl":"https://doi.org/10.1139/cjfas-2024-0063","url":null,"abstract":"Seabirds are biovectors that transport large concentrations of nutrients from their marine feeding areas to terrestrial breeding grounds. Here, we used subfossil cladoceran assemblages to assess if, and how, changes in the world’s largest colony of Leach’s Storm Petrels affected the structure of Cladocera assemblages over the past ~1700 years. Using sediment cores from four ponds impacted by Leach’s Storm-Petrel colonies on Baccalieu Island (NL, Canada), we observed a consistent transition in cladoceran assemblages from benthic/littoral to pelagic taxa in association with high seabird presence. This shift aligns with previously published limnological changes that tracked the growth of the colony. Compared to trends in sedimentary chlorophyll-a, pelagic cladoceran taxa lagged behind algal shifts driven by seabird activity. The main drivers of cladoceran assemblage shifts were likely alterations to the physical habitat structure and food availability driven by seabird inputs. Furthermore, deposition of calcium from seabirds may have also contributed to changing the composition of cladoceran communities. Our study provides information on food web shifts associated with seabird-driven eutrophication, which can be compared to future paleoecological studies.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141809191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Allison Kathleen Drake, Aiviq Hunters and Trappers Association , Laurissa R. Christie, Vivian Nguyen, Steven M Alexander, K. Dunmall
Climate change and development are shaping Arctic ecosystems in unprecedented ways intimately known to Inuit. To describe changes in aquatic habitats and species near Kinngait, Nunavut, researchers co-created a questionnaire with the Aiviq Hunters and Trappers Association and community technicians. Inuit knowledge, centered on experiences and perceptions of marine, coastal, and lacustrine shifts, was gathered from 39 knowledge holders. Responses indicated that across ecosystems, turbidity and waves are not likely changing, wind and erosion may be changing, and water is warming. Ice is thinner, breaking up earlier, forming later, and diminishing in extent. These shifts are altering harvest timing in the spring and winter, and are rendering travel on the land increasingly difficult. While most knowledge holders reported no change in the diversity and abundance of marine mammals, fishes, and invertebrates, others expressed that ringed seal and beluga whale may be declining, salmon are appearing, and mussels are proliferating. Inuit insights and voices consolidated through this endeavour will serve the community and contribute to a baseline of documented knowledge to help understand ongoing change.
{"title":"Community experiences and perceptions of aquatic change in ᑭᙵᐃᑦ, ᓄᓇᕗᑦ (Kinngait, Nunavut)","authors":"Allison Kathleen Drake, Aiviq Hunters and Trappers Association , Laurissa R. Christie, Vivian Nguyen, Steven M Alexander, K. Dunmall","doi":"10.1139/cjfas-2023-0252","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0252","url":null,"abstract":"Climate change and development are shaping Arctic ecosystems in unprecedented ways intimately known to Inuit. To describe changes in aquatic habitats and species near Kinngait, Nunavut, researchers co-created a questionnaire with the Aiviq Hunters and Trappers Association and community technicians. Inuit knowledge, centered on experiences and perceptions of marine, coastal, and lacustrine shifts, was gathered from 39 knowledge holders. Responses indicated that across ecosystems, turbidity and waves are not likely changing, wind and erosion may be changing, and water is warming. Ice is thinner, breaking up earlier, forming later, and diminishing in extent. These shifts are altering harvest timing in the spring and winter, and are rendering travel on the land increasingly difficult. While most knowledge holders reported no change in the diversity and abundance of marine mammals, fishes, and invertebrates, others expressed that ringed seal and beluga whale may be declining, salmon are appearing, and mussels are proliferating. Inuit insights and voices consolidated through this endeavour will serve the community and contribute to a baseline of documented knowledge to help understand ongoing change.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Weather extremes, such as drought, are predicted to be a strong determinant of species persistence under climate change. Yet predictions often fail to consider that variation in streamflow responses, variation in population dynamics, or adaptations to drought could buffer species against extremes. In this study we examined the responses of eight California (USA) steelhead populations to a severe drought from 2012 to 2016. We observed that streamflows were highly synchronous across the region in all seasons and did not appear to buffer drought impacts. Population dynamics were variable across the region and did appear to buffer the region from drought impacts. Some populations had very low productivity for four years associated with the drought, while others had slightly below-average productivity for only two years. Population synchrony was associated with spring-smolt flow, temperature and drought over time, but was not associated with winter-spawner or summer-juvenile conditions, suggesting populations may be adapted to drought. Our results highlight how regional buffering and adaptation can be important mechanisms against climate extremes both now and into the future.
{"title":"California steelhead populations were regionally buffered and individually resistant to a severe multi-year drought","authors":"Haley Ohms, E. P. Palkovacs, D. Boughton","doi":"10.1139/cjfas-2023-0198","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0198","url":null,"abstract":"Weather extremes, such as drought, are predicted to be a strong determinant of species persistence under climate change. Yet predictions often fail to consider that variation in streamflow responses, variation in population dynamics, or adaptations to drought could buffer species against extremes. In this study we examined the responses of eight California (USA) steelhead populations to a severe drought from 2012 to 2016. We observed that streamflows were highly synchronous across the region in all seasons and did not appear to buffer drought impacts. Population dynamics were variable across the region and did appear to buffer the region from drought impacts. Some populations had very low productivity for four years associated with the drought, while others had slightly below-average productivity for only two years. Population synchrony was associated with spring-smolt flow, temperature and drought over time, but was not associated with winter-spawner or summer-juvenile conditions, suggesting populations may be adapted to drought. Our results highlight how regional buffering and adaptation can be important mechanisms against climate extremes both now and into the future.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141821344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Charles Hinchliffe, H. Schilling, Pierre Pepin, Fonti Kar, Daniel S Falster, I. Suthers
The ratio of mortality to growth of larval fish provides a metric of a cohort’s ‘recruitment potential’. Estimating recruitment potential is arduous, requiring growth and mortality to be estimated independently. Here, we propose using the exponent of size spectrum models to indicate recruitment potential from body measurement data alone. This approach has several advantages including 1) reducing data collection times, 2) removing uncertainty in estimates generated from age estimation, and 3) allowing re-analysis of larval fish databases or archived collections. To test the validity of this approach, we conduct simulations comparing estimates of recruitment potential from an abundance spectrum model with other common methods. By varying larval flux rates, growth, mortality, and measurement error, we show the abundance spectrum model is more accurate and precise at smaller sample sizes, and more robust to variance in individual rates and measurement error of ages, but more susceptible to measurement error of size. We highlight that a size-based approach to estimating recruitment potential provides another useful tool for understanding larval survival, reducing resource demands on research compared to traditional methods.
{"title":"Rapid inference of larval fish recruitment potential from size spectrum models.","authors":"Charles Hinchliffe, H. Schilling, Pierre Pepin, Fonti Kar, Daniel S Falster, I. Suthers","doi":"10.1139/cjfas-2024-0067","DOIUrl":"https://doi.org/10.1139/cjfas-2024-0067","url":null,"abstract":"The ratio of mortality to growth of larval fish provides a metric of a cohort’s ‘recruitment potential’. Estimating recruitment potential is arduous, requiring growth and mortality to be estimated independently. Here, we propose using the exponent of size spectrum models to indicate recruitment potential from body measurement data alone. This approach has several advantages including 1) reducing data collection times, 2) removing uncertainty in estimates generated from age estimation, and 3) allowing re-analysis of larval fish databases or archived collections. To test the validity of this approach, we conduct simulations comparing estimates of recruitment potential from an abundance spectrum model with other common methods. By varying larval flux rates, growth, mortality, and measurement error, we show the abundance spectrum model is more accurate and precise at smaller sample sizes, and more robust to variance in individual rates and measurement error of ages, but more susceptible to measurement error of size. We highlight that a size-based approach to estimating recruitment potential provides another useful tool for understanding larval survival, reducing resource demands on research compared to traditional methods.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141821258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christina A.D. Semeniuk, Kathleen D.W. Church, Felix Eissenhauer, Jaime Grimm, Robert M Hechler, Bradley E Howell, S. V. Ivanova, Sandra Klemet-N'Guessan, C. Madliger, Jessica L Reid, Kendra Thompson-Kumar, Ivan Arismendi, Brooke E. Penaluna, Andrea E. Kirkwood, Catherine M. Febria
As early-career professionals (ECPs) navigate their education and professional development in the aquatic sciences, many seek to build a network to help guide their entrance into the field. Scientific societies play a vital role through hosted conferences, where ECPs can meet and share ideas with others and find mentors. However, not all ECPs are the same, and those from marginalized backgrounds face unique challenges. Here, we provide a perspective on ways scientific societies can ensure all members are provided with equitable opportunity to discover, access, and build career-defining networks at conference events, including the critical role of mentors in navigating obstacles to success. Our recommendations originate from an early-career networking workshop in 2022 at a Canadian fisheries and aquatic sciences conference. The day-long hybrid event comprised interactive activities and discussions on how societies and their conferences can foster and promote inclusive networking for all, including online attendees. This perspective serves as a call to action for scientific societies and senior-career professionals to meaningfully engage with early-career professionals and marginalized members to promote transformative science.
{"title":"On Increasing Equity and Inclusion of Early-Career Professionals for Conferences and Conference Networking in Canadian Fisheries and Aquatic Science Societies","authors":"Christina A.D. Semeniuk, Kathleen D.W. Church, Felix Eissenhauer, Jaime Grimm, Robert M Hechler, Bradley E Howell, S. V. Ivanova, Sandra Klemet-N'Guessan, C. Madliger, Jessica L Reid, Kendra Thompson-Kumar, Ivan Arismendi, Brooke E. Penaluna, Andrea E. Kirkwood, Catherine M. Febria","doi":"10.1139/cjfas-2024-0033","DOIUrl":"https://doi.org/10.1139/cjfas-2024-0033","url":null,"abstract":"As early-career professionals (ECPs) navigate their education and professional development in the aquatic sciences, many seek to build a network to help guide their entrance into the field. Scientific societies play a vital role through hosted conferences, where ECPs can meet and share ideas with others and find mentors. However, not all ECPs are the same, and those from marginalized backgrounds face unique challenges. Here, we provide a perspective on ways scientific societies can ensure all members are provided with equitable opportunity to discover, access, and build career-defining networks at conference events, including the critical role of mentors in navigating obstacles to success. Our recommendations originate from an early-career networking workshop in 2022 at a Canadian fisheries and aquatic sciences conference. The day-long hybrid event comprised interactive activities and discussions on how societies and their conferences can foster and promote inclusive networking for all, including online attendees. This perspective serves as a call to action for scientific societies and senior-career professionals to meaningfully engage with early-career professionals and marginalized members to promote transformative science.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141824003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamin King, Corey J. Morris, John M. Green, Robert S Gregory, Paul V. R. Snelgrove, David Cote, C. Pennell
The Gilbert Bay MPA was established in Labrador, Canada to protect a resident population of Atlantic cod (Gadus morhua) and associated habitat. However, fisheries removals outside MPA boundaries have contributed to population decline and increases in potentially competing species may hinder recovery. Using acoustic telemetry and network analyses, we compared movements of Gilbert Bay cod (n = 23), conspecifics from offshore environments (offshore Atlantic cod, n = 19), and Greenland cod (Gadus ogac, n = 14) within and outside MPA boundaries from August 2014 – June 2017. Similar summer space use resulted in species overlap at seaward MPA boundaries and outside the MPA. In winter, Gilbert Bay and Greenland cod distributions overlapped within some MPA areas, and offshore Atlantic cod were absent. Some Gilbert Bay cod remained within the MPA year-round. Summer vulnerability to fisheries harvest outside MPA boundaries and winter overlap with competing Greenland cod within the MPA, may collectively challenge Gilbert Bay cod population recovery. Our study demonstrates the utility of acoustic telemetry and network analyses in evaluating animal movements for MPA management.
{"title":"Acoustic telemetry and network analysis reveal seasonal spatial overlap between gadid species in a subarctic coastal marine protected area","authors":"Benjamin King, Corey J. Morris, John M. Green, Robert S Gregory, Paul V. R. Snelgrove, David Cote, C. Pennell","doi":"10.1139/cjfas-2023-0272","DOIUrl":"https://doi.org/10.1139/cjfas-2023-0272","url":null,"abstract":"The Gilbert Bay MPA was established in Labrador, Canada to protect a resident population of Atlantic cod (Gadus morhua) and associated habitat. However, fisheries removals outside MPA boundaries have contributed to population decline and increases in potentially competing species may hinder recovery. Using acoustic telemetry and network analyses, we compared movements of Gilbert Bay cod (n = 23), conspecifics from offshore environments (offshore Atlantic cod, n = 19), and Greenland cod (Gadus ogac, n = 14) within and outside MPA boundaries from August 2014 – June 2017. Similar summer space use resulted in species overlap at seaward MPA boundaries and outside the MPA. In winter, Gilbert Bay and Greenland cod distributions overlapped within some MPA areas, and offshore Atlantic cod were absent. Some Gilbert Bay cod remained within the MPA year-round. Summer vulnerability to fisheries harvest outside MPA boundaries and winter overlap with competing Greenland cod within the MPA, may collectively challenge Gilbert Bay cod population recovery. Our study demonstrates the utility of acoustic telemetry and network analyses in evaluating animal movements for MPA management.","PeriodicalId":9515,"journal":{"name":"Canadian Journal of Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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