Size-dependent functional response of the round goby Neogobius melanostomus; implications for more accurate impact potential calculation DOI Creative Commons
Pavel Franta, Radek Gebauer, Lukáš Veselý

et al.

Aquatic Invasions, Journal Year: 2023, Volume and Issue: 18(4), P. 507 - 520

Published: Nov. 8, 2023

Abundance and per-capita foraging efficiency are essential factors for predicting quantifying an invasive predator impact on prey, i.e., the potential (IP). However, population structure is not included in calculation, IP accuracy might be improved by incorporating body size. The of round goby Neogobius melanostomus , a highly predator, was surveyed Elbe River. We determined functional response (FR, per capita foraging) three most abundant size classes N. water louse Asellus aquaticus . then calculated each class entire with (the actual – A ) without limit rage LSR (based FR medium class). All showed type II respect to A. estimated parameters, attack rate handling time, as well maximum feeding rate, were dependent. Despite lowest efficiency, small individuals displayed highest among tested because their high abundance. Conversely, large individuals, although showing lower IP. Hence, more precise calculations compared Overestimation consequence omitting negligible at investigated locality. five years post-invasion can accurately based medium-sized fish.

Language: Английский

Fishes of the upper rio Paraná basin: diversity, biogeography and conservation DOI Creative Commons
Fernando César Paiva Dagosta, Maristela Sayure Monção, Bárbara Akemi Nagamatsu

et al.

Neotropical Ichthyology, Journal Year: 2024, Volume and Issue: 22(1)

Published: Jan. 1, 2024

Abstract The upper rio Paraná basin drains the most developed and environmentally degraded region in South America: Brazilian southeast. While it is one of well-known Neotropical fish assemblages, also threatened by anthropic activity. Urbanization, deforestation, dam construction, invasive species, water pollution not only reduce living area species but alter our perception its biotic elements. Such changes are so profound pervasive that raise uncertainties about native or non-native status several species. This paper aims to offer a detailed picture diversity historical biogeography fishes basin, which we hope will solid foundation for future conservation policies. We update list analyze geographical distributions, identify biogeographical patterns, emphasizing areas requiring recognition as distinct biotas efforts. Over past 15 years, more than 100 additional have been described recorded, expanding total 341 belonging six orders 30 families, making richest river Brazil outside Amazonian region. Unlike neotropical basins where Characidae dominates, loricariids make up nearly one-fourth Species clades concentrate central while endemics confined peripheral due complex history shared with neighboring basins. Eighteen regions identified, discussing their composition, histories, implications. has 10% fauna ranked endangered present 128 including three hybrids. places major drainage largest number taxa neotropics at same time numerous Existing protected deemed ineffective preserving diverse assemblages fail safeguard majority narrowly-endemic

Language: Английский

Citations

25
The impacts of alien species on river bioassessment DOI Creative Commons
Maria João Feio, Janine Pereira da Silva, Robert M. Hughes

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 123874 - 123874

Published: Jan. 8, 2025

Language: Английский

Citations

2
Editorial: Freshwater biodiversity crisis: Multidisciplinary approaches as tools for conservation DOI Creative Commons
Felipe Polivanov Ottoni, Josie South, Valter M. Azevedo‐Santos

et al.

Frontiers in Environmental Science, Journal Year: 2023, Volume and Issue: 11

Published: Feb. 21, 2023

EDITORIAL article Front. Environ. Sci., 21 February 2023Sec. Freshwater Science Volume 11 - 2023 | https://doi.org/10.3389/fenvs.2023.1155608

Language: Английский

Citations

17
Climate change may increase the suitable habitats for invasive freshwater Cichlids in a Neotropical basin DOI
Cristian Camilo Martínez-González, Lucia a F Mateus, Thadeu Sobral–Souza

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Abstract Climate change is considered a driver for the spread of invasive alien species (IAS); nevertheless, research assessing this link remains limited. Recognizing suitable habitats where IAS have been introduced crucial biodiversity conservation and ecosystem management. Here, we integrated online, museum, laboratory occurrence databases with local ecological knowledge (LEK) on fishes from semi-structured interviews georeferenced Instagram posts traditional recreational fishers to model habitat-suitability three voracious Cichlids in Brazilian part Upper Paraguay River Basin (the Pantanal wetland its tributaries). Our goal was locate areas (regions, sub-basins, reservoirs) most at risk these basin. findings reveal extensive throughout study basin, currently covering half up 90% upstream sub-basins. Under future climate scenarios, are projected expand further, encompassing 85% floodplain - one fish-rich basins Neotropical region (~ 300 spp). These underscore potential Cichlid range expansion floodplains upcoming decades. emphasizes value integrating Ecological Niche Models (ENMs) Citizen Science data identify high-risk during early invasion stages, inform preventive strategies, support efforts mitigate impacts native biodiversity.

Language: Английский

Citations

0
Non‐Native Species Abundance Decreases the Co‐Occurrence Between Native and Non‐Native Species Through Time at Any Phylogenetic Distance DOI Creative Commons
Amanda Cantarute Rodrigues, Rafaela Vendrametto Granzotti, Natália Carneiro Lacerda dos Santos

et al.

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(4)

Published: April 1, 2025

ABSTRACT Non‐native species may cause cumulative impacts on native communities if their abundance continues to increase through time. This negative effect can reflect the spatial distribution of species, especially when and non‐native are phylogenetically similar. Here, we assessed co‐occurrence between fish using long‐term data from six locations in a Brazilian floodplain. We tested whether is influenced by time since first record, mediated phylogenetic relatedness species. found that was more influential than record lower high, regardless relatedness. The interannual variability overshadow trends determining temporal effects

Language: Английский

Citations

0
Investigating the behavioral responses of nektonic and benthic tadpoles elicited by the presence of a predatory nektonic fish DOI Creative Commons
Yasmim Caroline Mossioli de Souza, Fabiane Santana Annibale, Fausto Nomura

et al.

Journal of Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Abstract Different defensive strategies are used by tadpoles to avoid or escape from predators, and it is possible that differences in the microhabitat of prey predators influence tadpoles. Therefore, we experimentally tested whether presence a nektonic fish predator ( Oreochromis niloticus ) reduces time displacement, increases latency start foraging, amount food consumed Scinax fuscovarius benthic Physalaemus nattereri Contrary our expectations, did not affect behavior Conversely, however, reduced their displacement predator. It that, due ability occupy entire water column, they may trigger behaviors prey, while silvery coloring would reduce detectability aquatic predators. Thus, were less reactive toward despite sharing same microspatial niche, whereas seem be more fact do share niche.

Language: Английский

Citations

0
Checklist of the fish fauna of the Munim River Basin, Maranhão, north-eastern Brazil DOI Creative Commons
Lucas de Oliveira Vieira, Diego Sousa Campos, Rafael Ferreira de Oliveira

et al.

Biodiversity Data Journal, Journal Year: 2023, Volume and Issue: 11

Published: Feb. 10, 2023

The Maranhão State harbours great fish diversity, but some areas are still undersampled or little known, such as the Munim River Basin in northeast of State. This lack knowledge is critical when considering anthropogenic impacts on riverine systems especially face major habitat destruction. These pressing threats mean that a comprehensive understanding diversity and checklists extremely relevant. Therefore, present study provides checklist species found Basin, State, north-eastern Brazil, based collected specimens. A total 123 were recorded for with only two non-native species, Oreochromis niloticus Colossoma macropomum , showing assemblage has relatively high ecological integrity. In addition, 29 could not be identified at level, indicating presence probably new to science Basin. predominance belonging orders Characiformes Siluriformes, Characidae being recovered most species-rich family (21 species) agrees general pattern river basins Neotropical Region. was estimated by extensive fieldwork, including several sampling gears, carried out different seasons (dry rainy) exploring environments both daily nocturnal sampling, from Basin's source its mouth. 84 sites sampled between 2010 2022, resulting 12 years fieldwork. Fish assemblages distinct Estuary Upper basin sections more similar Lower Middle environmental filtering processes. Species weakly nested across sections, unique each section (per Simpsons Index). High variability richness likely due microhabitat heterogeneity supporting specialist communities.

Language: Английский

Citations

8
Persistence of the non-native Kellicottia bostoniensis (Rousselet, 1908) in a large tropical reservoir DOI
Christina Wyss Castelo Branco, Lucas César Santos-Cabral, Betina Kozlowsky‐Suzuki

et al.

Hydrobiologia, Journal Year: 2023, Volume and Issue: 851(12-13), P. 3039 - 3060

Published: July 24, 2023

Language: Английский

Citations

2
Fish Diversity and Conservation in a Neotropical Grassland Region DOI
Fernando Gertum Becker, Juliano Ferrer, Marcelo Loureiro

et al.

Springer eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 319 - 348

Published: Dec. 15, 2023

Language: Английский

Citations

2
Assessing the occurrence of alien species on Brazilian freshwater ecosystems: insights from a comprehensive survey DOI Creative Commons
Anderson Oliveira Latini, Daniela Chaves Resende, Daniel Paiva Silva

et al.

Acta Limnologica Brasiliensia, Journal Year: 2024, Volume and Issue: 36

Published: Jan. 1, 2024

Abstract: Aim Assessing the damage caused to natural environments and native biodiversity by alien species is challenging. We tested whether number of detections affected total or invader richness, considering importance predicting which are more probable future invaders. Methods summarized a research information survey conducted on amphibians, annelids, aquatic macrophytes, cnidarians, crustaceans, fish, microorganisms, mollusks, nemathelminths, platyhelminths, reptiles, for Brazilian watersheds. used linear regressions between richness richness. Results obtained 1,896 183 in Brazil. Fish mollusk were commonest invaders due their being frequent than expected chance, all occurring freshwater ecosystems. also found positive robust relationships Conclusions Our results illustrate how systems fragile invasions highlight need effective action address this question. Scientific uncertainty Brazil regarding status some potential harm high, highlighting cautionary overview Despite scenario, new policies create opportunities parks with exotic organisms spread further Brazil, which, actual conditions, likely increase pressure ecosystems species. This reinforces already expressed scientific community greater attention issue.

Language: Английский

Citations

0