Article
Marine & Freshwater Biology
P. Gatts, M. A. L. Franco, M. G. Almeida, C. E. de Rezende, P. A. S. Costa
Summary: The study assessed the stable isotopes of carbon and nitrogen in three demersal guilds on the southeastern Brazilian coast to understand their trophic relationships. It was found that the organic matter pool supporting the demersal food web is a mixture of marine and terrigenous sources, with the Paraiba do Sul River having a significant influence regardless of seasonality. The research also highlighted the importance of terrestrial organic matter sources from the river to shallow coastal demersal food webs in the region.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Giorgio Aglieri, Charles Baillie, Stefano Mariani, Carlo Cattano, Antonio Calo, Gabriele Turco, Davide Spatafora, Antonio Di Franco, Manfredi Di Lorenzo, Paolo Guidetti, Marco Milazzo
Summary: The study combines multiple survey methods to investigate fish diversity, finding that small-scale fishery catches provide higher taxonomic diversity estimates and environmental DNA analysis is the only method able to gather the entire spectrum of considered functional traits.
Article
Green & Sustainable Science & Technology
Jitraporn Phaksopa, Roochira Sukhsangchan, Rangsiwut Keawsang, Kittipod Tanapivattanakul, Thon Thamrongnawasawat, Suchai Worachananant, Patinya Sreesamran
Summary: This study described and compared the types of microplastics ingested by 274 fish from Thailand's eastern coast in 2020, finding a relatively high detection frequency compared to other regions in Thailand but relatively low compared to global standards. The dominant aspects found included PET, fiber, and black particles. The ingestion of microplastics by fish was influenced by the size, weight, and feeding behavior of the fish.
Article
Zoology
Fernanda O. Martins
Summary: This is a study on a newly discovered species of Microlepidogaster in Brazil, which is described and differentiated from other species based on its unique features. The taxonomic changes involving Microlepidogaster and Rhinolekos genera are also discussed.
Article
Ecology
Savvas Genitsaris, Polyxeni Kourkoutmani, Natassa Stefanidou, Evangelia Michaloudi, Meritxell Gros, Elisa Garcia-Gomez, Mira Petrovic, Leonidas Ntziachristos, Maria Moustaka-Gouni
Summary: The few studies available on the impact of vessel scrubber effluents on the marine environment have shown adverse effects. In this study, mesocosm experiments were conducted to examine the effects of scrubber effluents on phytoplankton and bacterioplankton communities in the Thermaikos Gulf, Eastern Mediterranean. High and low concentrations of scrubber effluents caused diverse shifts in the composition of these communities, with significant declines in diatoms and changes in bacterioplankton towards PAHs degrading genera. The results highlight the importance of understanding the effects of shipping activities on marine ecosystems.
ECOLOGICAL INFORMATICS
(2023)
Article
Ecology
Ana Cecilia Giacometti Mai, Bianca Possamai
Summary: Classifying organisms into guilds is a useful strategy for addressing taxonomic differences and comparing ecosystems worldwide. In this study, the fish assemblage of Patos Lagoon Estuary in South Brazil was evaluated and classified into standardized guilds based on estuarine use, feeding mode, and reproductive strategy. The majority of fish species in the estuary were found to be marine, with zoobenthivores being the dominant feeding mode. The study also provided an updated and unified list of fish species in the estuary, assisting future research on estuarine assemblages in the Warm Temperate Southwestern Atlantic Province and globally.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Jerome Benedict P. Cabansag, Roselle B. Olimberio, Zaivy Mae T. Villanobos
Summary: This study compared the amount of microplastics in the guts of fish with different feeding habits, body sizes, and weights, and also compared the ingestion of microplastics between marine and freshwater fish. The results showed that herbivorous fish and marine fish ingested more microplastics, and there was a weak correlation between fish weight and the amount of microplastics ingested.
MARINE POLLUTION BULLETIN
(2021)
Article
Forestry
Alexandra Cravino, Alejandro Brazeiro
Summary: Grassland afforestation in Uruguay has a negative impact on the assemblage of native mammals, reducing species richness and capture rate. However, tree plantations are not green deserts, with 35% of species recorded within the stands, rising to 70% when including species in firebreaks.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Ecology
Lesli C. Hernandez-Mendoza, Luis Escalera-Vazquez, Daniel Arceo-Carranza
Summary: This study compares the trophic dynamics of a fish community in a mangrove ecosystem in the Mexican-Caribbean using different types of fish species as bioindicators. The results show that the feeding characteristics of fish are related to the conservation or restoration status of the mangroves and the trophic dynamics in the community.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2022)
Article
Biodiversity Conservation
Zhonghua Ning, Cong Chen, Tian Xie, Zhenchang Zhu, Qing Wang, Baoshan Cui, Junhong Bai
Summary: The invasion of Spartina species generally reduces biodiversity but increases coastal faunal abundance and fitness. The impact of invasive Spartina is dependent on habitat types, faunal taxa, trophic levels, and feeding types. Removal of invasive species can benefit native faunal communities, but the recovery process depends on specific measures and time.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Barbara Zorica, Daria Ezgeta-Balic, Olja Vidjak, Vedran Vuletin, Marija Sestanovic, Igor Isajlovic, Vanja Cikes Kec, Nedo Vrgoc, Chris Harrod
Summary: The study examined how the trophic ecology of nine economically important marine taxa varied across three distinct areas of the Adriatic Sea. The results showed that although there were spatial differences in what each species consumed, each species fed at a similar trophic position across locations, indicating a similar ecological function. The study also provided a first estimate of the predator-prey body mass ratio for this area.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Joana Tomazelli, Gabriela Zimmermann Prado Rodrigues, Danielle Franco, Mateus Santos de Souza, Jorge Henrique Burghausen, Jenifer Panizzon, Juliana Machado Kayser, Marcia Regina Loiko, Anelise Schneider, Rafael Linden, Gunther Gehlen
Summary: This study investigated the response of wild birds to human activities in three different environmental areas in southern Brazil by analyzing metal concentrations in bird feathers and conducting genotoxicity tests. The results showed no significant differences in metal concentrations and micronuclei numbers between sampling areas, but higher zinc and copper concentrations were found in insectivorous birds. The study also revealed that omnivorous birds had more nuclear abnormalities, while juveniles and birds with better body condition index had increased abnormality numbers.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Anjum Tasnuva, Quazi Hamidul Bari, Abu Reza Md Towfiqul Islam, G. M. Monirul Alam
Summary: This study proposes a holistic approach to measure livelihood vulnerability in southwestern Bangladesh by collecting primary and secondary data. The results show that different coastal unions have varying levels of vulnerability, with households in the Gabura union being the most vulnerable. Targeted interventions and sustainable policies are needed to reduce the vulnerability of coastal dwellers.
INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY
(2023)
Article
Biology
Maria Magdalena Ordonez-Resendiz, Pablo Corcuera, Claudia Ballesteros-Barrera, Santiago Zaragoza-Caballero
Summary: We studied the composition and diversity of Scarabaeidae communities in the Sierras de Taxco-Huautla Priority Conservation Region. The study was conducted from May 2007 to November 2014, and the dominant vegetation types were temperate forest, tropical dry forest, mountain cloud forest, and agricultural and pasture management zones. We collected 2596 individuals belonging to 164 scarab morphospecies from six subfamilies, 23 tribes, and 47 genera. The most diverse subfamilies were Melolonthinae and Scarabaeinae, and the most diverse and abundant genus was Phyllophaga. The tropical dry forest and agricultural/pasture management zones had the highest species diversity and dominance values.
Article
Agronomy
Natalia Rosas-Ramos, Josep D. Asis, Estefania Tobajas, Victor de Paz, Laura Banos-Picon
Summary: The conversion of traditional land-use systems into more intensive agriculture forms plays a major role in biodiversity loss. Organic management has been widely studied for its potential to enhance biodiversity, but its contribution remains controversial. This study in traditional cherry orchards in Spain found that organic orchards supported a higher number of beetle families and greater plant species richness. Beetle and plant communities were highly correlated, with conventional orchards being more homogeneous in composition and organic orchards being more influenced by topographic features.
Article
Fisheries
Francisco Gerson Araujo, Marcia Cristina Costa de Azevedo, Gustavo Henrique Soares Guedes, Wagner Uehara
Summary: This study investigated changes in fish communities in an isolated reservoir in southeastern Brazil over the past three decades, linking these changes to increasing temperatures and potential effects on fish distribution due to climate change. Model predictions suggest a decrease in distribution area for certain fish species in the most pessimistic scenarios for 2050 and 2070.
ECOLOGY OF FRESHWATER FISH
(2022)
Article
Marine & Freshwater Biology
Ana Clara Sampaio Franco, Francisco Gerson Araujo, Alejandra Filippo Gonzalez Neves dos Santos, Magda Fernandes de Andrade-Tubino, Luciano Neves dos Santos
Summary: This study examined the responses of fish communities in shallow coastal habitats to fluctuating environmental conditions using functional groups to address habitat use and trophic strategy. It was found that different environmental conditions have specific effects on fish groups, with salinity being the key factor structuring coastal lagoons. The characteristics and environmental conditions of different lagoons can lead to variations in fish diversity.
Article
Marine & Freshwater Biology
Gustavo Henrique Soares Guedes, Francisco Gerson Araujo
Summary: A new approach using underwater drones for fish survey in reservoirs is introduced. The study reveals the distribution differences of fish in different zones based on physical and chemical conditions, which provides important insights for environmental monitoring.
Article
Marine & Freshwater Biology
Ellen Martins Camara, Magda Fernandes de Andrade-Tubino, Taynara Pontes Franco, Leonardo Mitrano Neves, Luciano Neves dos Santos, Francisco Gerson Araujo
Summary: Multiscale processes and dynamic boundaries play a crucial role in driving local and species contributions to fish beta diversity in coastal seascapes. The size of the seascape influences the environmental and spatial drivers of local contributions, while species characteristics affect species contributions. Various factors have different effects on beta diversity at different scales.
Article
Environmental Sciences
Tailan Moretti Mattos, Dandhara Rossi Carvalho, Augusto de Salles Guerra-Junior, Francisco Gerson Araujo
Summary: This study evaluated the influences of different types of reservoirs on the taxonomic and functional distinctness of fish assemblages in the Paraiba do Sul basin in Brazil. The results showed that reservoirs on the main channel had lower taxonomic and functional distinctness compared to cascade reservoirs, while isolated reservoirs had higher distinctness. The findings suggest that assessing fish functional and taxonomic distinctness can enhance our understanding of fish communities in Neotropical reservoirs.
RIVER RESEARCH AND APPLICATIONS
(2023)
Article
Ecology
Rafaela de Sousa Gomes-Goncalves, Francisco Gerson Araujo
Summary: This study investigated the variability in fish community composition and its relationship with environmental heterogeneity in estuarine shallow waters. The results showed that more urbanized areas had greater environmental heterogeneity and higher beta diversity, suggesting the need to reduce urbanization effects on these habitats for effective conservation measures.
MARINE BIOLOGY RESEARCH
(2022)
Article
Marine & Freshwater Biology
Rafaela de Sousa Gomes-Goncalves, Vinicius da Rocha Miranda, Leonardo Almeida Freitas, Francisco Gerson Araujo
Summary: The distribution of species is influenced by the relationship with other species and abiotic factors, modulated by long-term evolutionary and biogeographic processes. Fish and polychaetes are crucial components of estuarine ecosystems, but their relationship and response to environmental variables are poorly understood. This study examines the concordance between fish and polychaete communities in a tropical bay and determines the environmental influences on these communities. The findings suggest that benthic fish is associated with polychaetes, but their response to environmental conditions varies.
MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE
(2022)
Article
Marine & Freshwater Biology
Ellen Martins Camara, Magda Fernandes de Andrade-Tubino, Taynara Pontes Franco, Leonardo Mitrano Neves, Luciano Neves dos Santos, Alejandra Filippo Gonzalez Neves dos Santos, Francisco Gerson Araujo
Summary: As human-induced environmental changes reduce niche opportunities, permanent shifts in species traits alter ecosystem processes. Untangling the mechanisms driving temporal changes in coastal fish biodiversity is critical to conservation efforts.
Article
Ecology
Gustavo Henrique Soares Guedes, Iracema David Gomes, Aparecida Alves do Nascimento, Marcia Cristina Costa de Azevedo, Igor Cavalcanti de Araujo Souto-Santos, Paulo Andreas Buckup, Francisco Gerson Araujo
Summary: In this study, the reproductive traits of the Leptopanchax opalescens fish were examined to gain insights into their strategies for occupying temporary wetlands. Comparisons were made between different species of killifish with different life histories, and it was found that annual killifish have smaller body sizes and eggs compared to non-annual killifish, which may be related to their different lifespans and embryonic diapause.
Article
Fisheries
Rafaela de Sousa Gomes-Goncalves, Francisco Gerson Araujo
Summary: This study evaluated the temporal changes in taxonomic and functional indices of fish fauna in a heavily impacted tropical bay. The results showed a decrease in species richness and abundance, as well as functional richness. Beta diversity increased over time, indicating a fluctuating species composition. The dominance of turnover suggests the importance of preserving diverse habitats to accommodate a broad spectrum of species.
JOURNAL OF FISH BIOLOGY
(2023)