Simultaneous Bayesian estimation of size-specific catchability and size spectrum parameters from trawl data DOI Creative Commons
Kyle J. Krumsick, Eric J. Pedersen

ICES Journal of Marine Science, Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 6, 2023

Abstract Fisheries-independent surveys are a critical tool for monitoring marine populations and communities. However, considerations must be made to account variable-size-based catchability. The size-specific catchability function is therefore key estimating size distributions, but often requires extensive data sets or specialized field experiments determine. We develop Bayesian model capable of simultaneously both size-based curve species-specific spectrum parameters from trawl by assuming that individual species spectra follow theoretically derived parametric model. resulting provides means within an adaptive framework accommodating confounding factors such as vessel power fish density, potentially allowing improved biomass productivity estimates. demonstrate the application this using 15 years Greenland Halibut (Reinhardtius hippoglossoides) survey Nunavut determine catchabilities assess whether has changed across time series. While stock were not found vary, we did find evidence time-varying study period.

Language: Английский

Biomonitoring for Watershed Protection from a Multiscale Land-Use Perspective DOI Creative Commons
Kaline de Mello, Ricardo Hideo Taniwaki, Diego Rodrigues Macedo

et al.

Diversity, Journal Year: 2023, Volume and Issue: 15(5), P. 636 - 636

Published: May 8, 2023

The types and intensification of land use in the watershed affect living organisms aquatic ecosystems differently; this impact will also vary according to temporal spatial scales. Understanding these interactions is crucial design biomonitoring programs detect effect different pollutants freshwater improve management conservation strategies. Therefore, paper qualitatively reviews studies evaluate on multiple scales watersheds. organized into four sections. first section presents systems (streams, rivers, lakes, reservoirs). In second section, we describe characteristics main types. third explain how biomonitoring. Finally, fourth focus planning future prediction discuss models eDNA Our review assist decision-making regarding watersheds guide bioindicators for various diverse worldwide.

Language: Английский

Citations

14
Size spectra assess social-ecological impacts on Amazonian fish assemblages DOI Creative Commons
Victoria Isaac, Leandro Castello, Nelson A. Gouveia

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 173, P. 113360 - 113360

Published: March 28, 2025

Language: Английский

Citations

0
Climate Impacts on Lake Food‐Webs Are Mediated by Biological Invasions DOI Creative Commons
Camille Leclerc, Victor Frossard, Najwa Sharaf

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(3)

Published: March 1, 2025

ABSTRACT Climate change and biological invasions are among the most important drivers of biodiversity ecosystem change. Despite major advances in understanding their ecological impacts, these often considered individually, overlooking possible complex interrelationship. By applying structural equation modeling to an extensive nationwide dataset 430 fish communities across 257 French lakes, we investigated how taxonomic, size, trophic diversities impacted by climate warming exotic species occurrence. Our goal was compare relative signature or lasting impacts after factors had taken effect determine whether mediate current state community diversities. Drawing on a set interconnected hypotheses, suggest that could be indirect warming. This aspect must fully grasp overall effects change, beyond just its direct thermal impacts. results support our hypothesis negatively size However, mostly mediated warming‐induced increase richness, which, turn, promotes total richness. These have substantial role determining impact obscuring diversity patterns predicted temperature alone. We conclude cannot understood without considering via invasions, underscoring need intertwined roles predicting managing consequences.

Language: Английский

Citations

0
Agricultural land-use change seasonally rewires stream food webs: a case study from headwater streams in the Lake Erie watershed DOI Creative Commons
Marie Gutgesell, Matthew M. Guzzo, Kevin S. McCann

et al.

FACETS, Journal Year: 2025, Volume and Issue: 10, P. 1 - 13

Published: Jan. 1, 2025

Human impacts, like agricultural land-use change, alter natural patterns of resource availability and consumer response through space time threatening the stability ecosystems. In streams, removal riparian zones nutrient loading agriculture may seasonal asynchronous fluxes lead to food web rewiring loss. Here, we seasonally sampled three streams across an gradient determine how change rewires stream structures. We show that rewired trophic interactions reduced terrestrial energy use position. Additionally, drove steeper biomass size spectrum slopes shifted fish communities high abundances small individuals. Collectively, our results suggest be homogenizing webs towards productive, single-energy channel dominated with faster turnover rates. Theory predicts such changes are indicative instability, suggesting destabilizing webs. Importantly, indicate strategies aim retain reduce run-off important for reducing potential effects. As is expected increase support growing human populations, elucidating maintain resilient in landscapes essential.

Language: Английский

Citations

0
Human land use and non-native fish species erode ecosystem services by changing community size structure DOI
Dieison A. Moi, Victor S. Saito, Bárbara Angélio Quirino

et al.

Nature Ecology & Evolution, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Language: Английский

Citations

0
Fish parasites as proxy bioindicators of degraded water quality of River Saraswati, India DOI
Jayanta Kumar Biswas,

Sasanka Pramanik,

Manish Kumar

et al.

Environmental Monitoring and Assessment, Journal Year: 2023, Volume and Issue: 195(7)

Published: June 7, 2023

Language: Английский

Citations

7
Projecting fish community responses to dam removal – Data-limited modeling DOI Creative Commons
Henry H. Hansen, Ken H. Andersen, Eva Bergman

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110805 - 110805

Published: Aug. 15, 2023

Modeling fish community responses to dam removal is an emerging field of study as removals become more common, but uncertainties concerning recovery time and stability remain. In Europe, EU-wide biodiversity strategy plans restore around 25,000 km rivers free-flowing status, which emphasizes the importance being able predict after removal. We developed a multi-species size spectrum model for in Mörrum River Sweden identify possible outcomes was removed 2020. Electrofishing monitoring before used calibrate model. projected multiple scenarios into future explore patterns stability, individual species responses, while varying parameters related mortality, base resource rate change, maximum recruitment change. created 30 hypothetical using abrupt change perspective (parameters are step-based) gradual smooth). both perspectives, mortality decreasing reduced biomass delayed compared pre-dam conditions. Our results demonstrate that from scenario not necessarily benefit all species. where practices or failures cause high events sustained impacts on trophic level resources, pre-removal may take decades, be unstable twice time-period. shows models can applied potential outcomes, particularly risk avoidance perspective. A such approach relatively low data requirements needed perform projections (e.g., present species, growth rates, relative abundance). Implementing this other river systems, at reach scale, help restoration management assess tradeoffs associated with different habitat approaches prior committing plan.

Language: Английский

Citations

3
Community size‐spectra applied to recreational freshwater fisheries in Puerto Rican reservoirs DOI Creative Commons
Brent A. Murry,

María de Lourdes Olmeda,

Craig G. Lilyestrom

et al.

Fisheries Management and Ecology, Journal Year: 2023, Volume and Issue: 31(2)

Published: Dec. 1, 2023

Abstract We developed a management framework based on community size‐spectra (CSS) to establish targets maximize desirable gamefish. evaluated the influence of relative abundance fish functional groups and watershed characteristics slope CSS or ecological efficiency. Both efficiency capacity were strongly influenced by degree water level variation. Steeper slopes indicated overfished gamefish populations, whereas flatter systems dominated undesirable invasive large‐bodied low trophic position fish. hypothesize that fishery would have target range provides deterministic community‐based predictable responses environmental food web changes can be used evaluate outcomes actions means assess annual progress toward conditions.

Language: Английский

Citations

2
Semántica en la interpretación fáctica sobre el concepto de verdad aproximada del Bioecotoximonitor DOI Open Access
George Argota Pérez, José Iannacone‍, María Amparo Rodríguez-Santiago

et al.

Neotropical Helminthology, Journal Year: 2024, Volume and Issue: 18(1)

Published: May 16, 2024

El objetivo del estudio fue analizar la semántica en interpretación fáctica sobre el concepto de verdad aproximada bioecotoximonitor. Se consideró para su análisis, transformación biomonitor a calidad bioecotoximonitor, y distinción monista, pluralista e instrumentalista conexión durante bioevaluación con indicaron cinco criterios: condiciones ambientales, datos, consistencia interpretación, impacto variabilidad ambiental aplicabilidad bioevaluación. La mediante criterios, evalúa comprensión sistemas ambientales. Destaca importancia considerar las ambientales flexible los datos. Los criterios estructurados abordan desde recolección hasta aplicación práctica gestión ambiental, asegurando relevancia información recopilada contextos específicos entorno. concluye que, semánticos estructuran donde considerar, garantizan resultados, múltiples perspectivas es crucial una precisa.

Citations

0
Valor estético desde una perspectiva filosófica en el biomonitoreo ambiental de la contaminación por metales pesados en ecosistemas acuáticos DOI Open Access
George Argota Pérez, José Iannacone‍, María Amparo Rodríguez-Santiago

et al.

Biotempo, Journal Year: 2024, Volume and Issue: 21(1), P. 87 - 93

Published: March 22, 2024

El objetivo del estudio fue describir el valor estético desde una perspectiva filosófica en biomonitoreo ambiental de la contaminación por metales pesados ecosistemas acuáticos. se realizó entre marzo y agosto 2023, centró valoración estética Se consideró como dimensiones principales apreciación estética, perturbación e integración con sus respectivos indicadores. mencionó que, los acuáticos destaca importancia considerar belleza visual su relación salud entorno. Desde filosófica, esta refleja armonía vitalidad ecosistema. La señala alteraciones armonía, indicando pérdidas significativas. Integrar programas monitoreo no solo protege entorno, sino que también responsabilidad ética hacia naturaleza. Refleja aspectos más profundos integridad vitalidad, percepción subjetiva indicadores objetivos ambiental. Reconocer preservar este guía acción promueve esfuerzos conservación. concluye resalta conexión ambiental, fomentando conservación ética.

Citations

0