Long‐term changes in multi‐trophic diversity alter the functioning of river food webs DOI
Dieison A. Moi, Alejandro D’Anatro, Iván González‐Bergonzoni

et al.

Functional Ecology, Journal Year: 2024, Volume and Issue: 38(8), P. 1739 - 1750

Published: May 21, 2024

Abstract Increasing human pressures threaten fish diversity, with potentially severe but unknown consequences for the functioning of riverine food webs. Using a 17‐year dataset from multi‐trophic communities, we investigated long‐term effects pressure on diversity and web functioning. Combining metabolic scaling ecological network principles, calculate annual energy fluxes through trophic compartments (top‐carnivore, mesocarnivore, detritivore omnivore). Energy link compartments, thus represents functions such as carnivory, omnivory, herbivory detritivory. Species richness across all was positively associated flux. However, species decreased over time, did flux at whole‐network level, which reduced by 75%. Human negatively affected both Moreover, negative impacts have intensified time. Our results illustrate how can reduce erode webs, implications ecosystem Read free Plain Language Summary this article Journal blog.

Language: Английский

Aquatic ecosystem services: an overview of the Special Issue DOI Open Access
Verónica Ferreira, Luís Maurício Bini, María de los Ángeles González Sagrario

et al.

Hydrobiologia, Journal Year: 2023, Volume and Issue: 850(12-13), P. 2473 - 2483

Published: May 17, 2023

Language: Английский

Citations

19

Managing exploitation of freshwater species and aggregates to protect and restore freshwater biodiversity DOI Open Access
Steven J. Cooke, Morgan L. Piczak, Elizabeth A. Nyboer

et al.

Environmental Reviews, Journal Year: 2023, Volume and Issue: 32(3), P. 414 - 437

Published: Aug. 2, 2023

For millennia humans have extracted biological and physical resources from the planet to sustain societies enable development of technology infrastructure. Growth in human population changing consumption patterns increased footprint on ecosystems their biodiversity, including fresh waters. Freshwater biodiversity face many threats it is now widely accepted that we are a crisis. One means protecting restoring freshwater better manage exploitation biota aggregate (e.g., sand, gravel, boulders). Here outline arising such identify response options ensure methods levels extraction sustainable allow recovery over-exploited ecosystems. The guidance provide will practitioners, policy-makers, resource stewards embrace effective, sustainable, evidence-based approaches extraction. Response for managing species include strengthening assessment reporting, using science-based reduce overexploitation support recovery, embracing community engagement, building or tightening legislation. reducing demand harvest, governance, monitoring environmental impacts, promoting restoration degraded compensating losses. Diverse case studies highlight examples where various management actions been implemented an effort consider how they can be scaled up adapted other contexts. Managing key aspect broader initiatives needed protect restore around globe.

Language: Английский

Citations

17

Unintended consequences of valuing the contributions of non-native species: misguided conservation initiatives in a megadiverse region DOI
Fernando Mayer Pelicice, Ângelo Antônio Agostinho, Carlos Bernardo Mascarenhas Alves

et al.

Biodiversity and Conservation, Journal Year: 2023, Volume and Issue: 32(12), P. 3915 - 3938

Published: July 15, 2023

Language: Английский

Citations

15

An overview of vinasse pollution in aquatic ecosystems in Brazil DOI Creative Commons
Valter M. Azevedo‐Santos,

Juliana Aparecida Fernandes,

Geovana de Souza Andrade

et al.

Environmental Management, Journal Year: 2024, Volume and Issue: 74(6), P. 1037 - 1044

Published: June 21, 2024

We review the negative impacts of vinasse, a byproduct alcohol distillation, on Brazil's freshwater ecosystems. found total 37 pollution events between years 1935 and 2023, with this number almost certainly an underestimate due to underreporting and/or unassessed events. Pollution by vinasse occurred both through accidents (e.g., tank failure) deliberately (i.e., opening floodgates), although in many cases causes remain undetermined. All caused fish kills, some records reporting effects other organisms as well crustaceans reptiles). associated effects, was reported for 11 states, notable São Paulo. Most biodiversity were recorded rivers, followed streams reservoirs. Some affected river systems harbour threatened fishes. Hydrological connectivity means that could have propagated along watercourses. Given these consequences biodiversity, ecosystem functioning services, we recommend remedial actions.

Language: Английский

Citations

4

Conventional environmental assessments are inadequate for predicting and mitigating impacts of dams on migratory fish in Brazil: an integrative assessment approach for the Neotropics DOI
João de Magalhães Lopes, Alexandre Peressin, Francisco Ricardo de Andrade Neto

et al.

Aquatic Sciences, Journal Year: 2025, Volume and Issue: 87(1)

Published: Jan. 1, 2025

Language: Английский

Citations

0

Are the Seasonal Dynamics of Zooplankton Different Between Contrasting Climatic Zones in Brazil? A Comparison Between Tropical and Subtropical Rivers DOI Open Access
Pablo Henrique dos Santos Picapedra, Cleomar Fernandes, Paulo Vanderlei Sanches

et al.

River Research and Applications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

ABSTRACT The unique environmental characteristics of the tropics and subtropics, including precipitation patterns, photoperiods temperatures, can influence riverine zooplankton communities in contrasting ways. Therefore, we aimed to investigate seasonal dynamics tropical subtropical rivers compare structure response distinct climatic conditions. To this end, collected samples from located two different zones Brazil (tropical subtropical) during winter, spring, summer autumn. Our results showed that testate amoebae rotifers play a crucial role both zones, emerging as predominant groups regarding density, species richness diversity. In rivers, variations are strongly influenced by temperature flooding events, which affect total suspended solids, turbidity pH. closely linked fluctuations dissolved oxygen. We identified 142 taxa, with zone comprising 125 taxa 97 taxa. also revealed had greater diversity than rivers. This disparity was primarily attributed higher nutrient concentrations lower thermal amplitudes waters compared those waters. Thus, it is evident conditions have varying influences on dynamics, highlighting need consider regional management conservation aquatic ecosystems.

Language: Английский

Citations

0

Diversity of potamodromous fishes in the Tocantins-Araguaia basin DOI Creative Commons

Thiago Nascimento da Silva Campos,

Hasley Rodrigo Pereira, Phâmela Bernardes Perônico

et al.

Neotropical Ichthyology, Journal Year: 2025, Volume and Issue: 23(1)

Published: Jan. 1, 2025

Abstract Migratory fishes are deeply connected with human societies. In the Tocantins-Araguaia basin, a region marked by high biodiversity, endemism and environmental degradation, there is little information about these fishes. this scenario, present study investigated taxonomic functional diversity of potamodromous fishes, objective to compile first species list, examine patterns in richness, composition, diversity. The migratory status each was assigned based on most recent literature fish Amazon basins. consolidated list 77 (three orders, 12 families 41 genera), including eight endemic, three threatened two non-native species. Pimelodidae summed species, followed Serrasalmidae Curimatidae. Most were classified as medium (42) long-distance (32) migrants, few carrying out continental migrations (3). widely distributed resulting spatial variation composition However, trait varied among scale. This broad assessment focused potential generate basic support fisheries management, planning, conservation initiatives.

Language: Английский

Citations

0

Aquatic pollution from truck spills: Urgent action needed in Brazil and beyond DOI Creative Commons
Valter M. Azevedo‐Santos, Taryn Pereira, Anne E. Magurran

et al.

Water Biology and Security, Journal Year: 2025, Volume and Issue: unknown, P. 100372 - 100372

Published: Feb. 1, 2025

Language: Английский

Citations

0

Non-native species drive the global loss of freshwater fish beta-diversity DOI Creative Commons
Lorraine Lopes Cavalcante, Thiago Vinicius Occhi, Julian D. Olden

et al.

NeoBiota, Journal Year: 2025, Volume and Issue: 97, P. 257 - 277

Published: Feb. 24, 2025

Freshwater ecosystems are facing mounting challenges. The widespread introduction of non-native species, for example, has resulted in the loss native species and substantial reconfiguration diversity patterns across regions. Documenting such impacts remains critical informing national-level biosecurity policies. Here, we explore changes biogeographic freshwater fish response to spread teasing apart geographic (watersheds) taxonomic (species) drivers at global scale. We leveraged databases occurrence estimate unique contributions local watersheds (native origin) beta-diversity domains. Beta-diversity metrics a domain scale can be interpreted as their importance uniqueness composition. report significant with largest Ethiopian, Nearctic Palearctic domains, even though non-natives decreased contribution all particularly known impacts. Watersheds identified most important promoting were not evenly distributed influenced by geographical isolation compositions composed many endemic threatened species. Highest values enhancing mainly observed although mean higher non-threatened Species from had wide ecological tolerances, were, general, natives, endemics and/or IUCN threat status. Our findings underscore consequences shaping fishes Anthropocene.

Language: Английский

Citations

0

A review of the ecological role of aquatic macrophytes on freshwater fish DOI
Sidinei Magela Thomaz, Ana Lúcia Paz Cardozo, Bárbara Angélio Quirino

et al.

Hydrobiologia, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Language: Английский

Citations

0