Article
Environmental Sciences
Xia Zhang, Lijun Cui, Songlin Liu, Jinlong Li, Yunchao Wu, Yuzheng Ren, Xiaoping Huang
Summary: This study investigated the composition and relationships of bacterial and phytoplankton communities in the Pearl River Estuary. It found that bacterial community composition varied with size fractions and salinity gradient across seasons. The study also revealed that the differences between particle-associated and free-living composition were more significant in the wet season. Additionally, positive co-occurrences were observed between phytoplankton species and bacterial populations, indicating mutual cooperation.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
S. Krishna Niveditha, C. K. Haridevi, Revati Hardikar, Anirudh Ram
Summary: This study examines the phytoplankton assemblage and chlorophyll a along the salinity gradient and oxygen zonation in Ulhas Estuary. The results show that the estuary experiences oxic conditions in the euhaline region due to oxygenated coastal waters, while the poly-meso-oligohaline region is hypoxic because of pollution from industrial effluents, domestic/sewage, and agricultural discharges. Anthropogenic nutrients also contribute to phytoplankton biomass and hypoxia. The study finds that diatoms dominate in the euhaline-oxic region, but their contribution decreases significantly in the oligohaline region. Cyanophytes and chlorophytes govern the meso to oligohaline region due to their tolerance for low salinity and high dissolved inorganic nutrients. The Carlson's Trophic State Index further confirms the estuary's eutrophic state, and the study identifies the adaptation of cyanophytes and chlorophytes to oxygen-deficient water.
MARINE POLLUTION BULLETIN
(2022)
Article
Forestry
Mariane Guedes, Lourdes Falen, Ocirio S. Pereira, Albertina P. Lima, Carolina V. de Castilho, Rafael F. Jorge, William E. Magnusson, Juliana Hipolito
Summary: The taxonomic composition of understory palms in the Amazon varies mostly in riparian zones, and the abiotic characteristics influencing this variation are not fully explored. This study investigated the relationship between the abundance of understory palms and canopy palms, as well as the effects of topographic and soil variables on the composition of understory-palm assemblages across the entire landscape. The results showed that understory and canopy palms have opposite relationships to environmental variables, and compositional turnover occurs even among sites with subtle environmental differences. Stream discharge and soil structure, impacted by human activities, are among the key factors affecting understory palms in riparian zones.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Ecology
Marcela Pimentel de Andrade, Andre Magalhaes, Luci Cajueiro Carneiro Pereira, Rauquirio Marinho da Costa
Summary: This study analyzed the structure and spatio-temporal variations of mesozooplankton community in the Caete River estuary in Brazil. The results showed that spatial variations in water physicochemical characteristics have significant effects on the structure and succession of mesozooplankton, potentially impacting the functioning and biodiversity of the coastal ecosystem.
ECOHYDROLOGY & HYDROBIOLOGY
(2022)
Article
Environmental Sciences
Rachel G. Clarke, Sara J. Klapstein, Robert Keenan, Nelson J. O'Driscoll
Summary: This study investigated the effects of salinity on mercury photoreactions in water systems. It found that as salinity increased, the rate of mercury photoreduction decreased while the amount of reducible mercury increased. The study suggests that the interactions between salinity and dissolved organic matter (DOM) play a crucial role in mercury photochemistry.
Article
Environmental Sciences
Marija Parac, Vlado Cuculic, Nusa Cukrov, Suncana Gecek, Marin Lovri, Neven Cukrov
Summary: This study is the first to evaluate the distribution of microplastics through the salinity gradient in a highly stratified estuary. The findings indicate that the salinity stratification did not alter the usual distribution of microplastic particles in the water column, and there was no significant accumulation on the halocline.
Article
Environmental Sciences
Katherine McFarland, Darren Rumbold, Ai Ning Loh, Lesli Haynes, S. Gregory Tolley, Patricia Gorman, Barbara Welch, Patricia Goodman, Tomma K. Barnes, Peter H. Doering, Philippe Soudant, Aswani K. Volety
Summary: This study examines the impact of altered hydrology on natural oyster reef populations, using the Caloosahatchee River Estuary as a case study. The study finds that prolonged high volume freshwater releases and a lack of freshwater input significantly affect oyster reef densities. Low freshwater input increases disease and predation, while moderate and properly timed freshwater inputs benefit oysters by promoting gametogenesis and reducing disease intensity.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Microbiology
Zongbao Liu, Qiaoyan Wei, Dayu Zou, Siyu Zhang, Chuanlun Zhang, Zhexue Quan, Meng Li
Summary: This study investigates the community composition of complete ammonia oxidizers (comammox) along a salinity gradient in the Pearl River Estuary. The results show that the comammox microorganisms in the sediments are diverse and display distinct distribution patterns. Deterministic processes and factors such as salinity and total nitrogen play a significant role in shaping the comammox community assembly.
MICROBIOLOGY SPECTRUM
(2022)
Article
Marine & Freshwater Biology
A. K. D. S. Sa, F. A. N. Feitosa, M. V. J. Cutrim, M. J. Flores-Montes, D. dos S. Costa, L. F. Cavalcanti
Summary: This study investigated the effects of seawater intrusion on the phytoplankton community in the Itapecuru River estuary and found that seawater intrusion caused changes in species composition, density, diversity, and biomass. Suspended particulate matter, salinity, cell size, and silicate were identified as important factors influencing the distribution of phytoplankton.
Article
Environmental Sciences
Shaheen Akhtar, Sk Md Equeenuddin, Priyadarsi D. Roy
Summary: The study analyzed the multi-element composition of rare earth elements (REE) in surface sediment from the Devi river estuary on the eastern coast of India. The sediments are primarily derived from the Eastern Ghat Group of rocks and are influenced by intrinsic physicochemical parameters, mainly salinity and redox conditions.
Article
Environmental Sciences
Bruce W. Pfirrmann, Matthew E. Kimball, Marvin M. Mace, Brendan D. Turley
Summary: This study evaluated the spatial, short-term, and decadal-scale variability of summer ichthyoplankton assemblages in an estuarine system in South Carolina, USA. The results showed significant differences in diversity and overall assemblage composition among sites, with the structure of the assemblage shifting with increasing water temperature during the summer. Additionally, differences in family-level assemblage composition compared to previous studies may indicate regional-scale environmental change.
ESTUARIES AND COASTS
(2021)
Article
Chemistry, Physical
Jian Yu, Tianwei Ma
Summary: The distribution of nano-sized pores in an electrode has a profound impact on the electrode capacitive response under a salinity gradient. By utilizing the pore-size effect, highly efficient extraction of the Gibbs free energy can be achieved.
Article
Environmental Sciences
Alice Alonso, Natalie G. Nelson, Simeon Yurek, David Kaplan, Maitane Olabarrieta, Peter Frederick
Summary: Oyster reef chains can slow down freshwater flow, promoting the accumulation of fresh or low-salinity water near shore, which supports oyster growth and estuarine conditions. However, research on the impact of oyster reef chains on freshwater detention is currently limited.
ESTUARIES AND COASTS
(2022)
Editorial Material
Nanoscience & Nanotechnology
Laxmicharan Samineni, Manish Kumar
Summary: Anion-selective covalent organic framework (COF) membranes, fabricated through laminar assembly and interfacial polymerization, show enhanced potential for osmotic power generation.
NATURE NANOTECHNOLOGY
(2022)
Article
Marine & Freshwater Biology
Jean-Charles Pavard, Julien Richirt, Laurent Seuront, Hugues Blanchet, Marie P. A. Fouet, Suzie Humbert, Benoit Gouillieux, Gwendoline Duong, Vincent M. P. Bouchet
Summary: This study reports the first description of benthic foraminiferal assemblages in the Gironde estuary, with a focus on the non-indigenous species Ammonia confertitesta. The distribution of foraminifera species in the estuary was primarily influenced by distance to the sea and sediment surface-chlorophyll-a. The non-indigenous species A. confertitesta outcompeted the indigenous species throughout the estuary.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Marine & Freshwater Biology
Ana Luiza-Andrade, Rogerio Rosa da Silva, Leandro Juen
Summary: Understanding the contribution of rare biological groups to functional diversity is crucial for comprehending biodiversity patterns and establishing efficient conservation strategies. This study focused on identifying the contribution of rare aquatic insects to functional diversity in forest, logging, and pasture environments. The results revealed differences in the composition of aquatic insects among different land uses, with streams in logging areas showing greater functional dispersion and rare genera being sensitive to water temperature increase and channel width. Additionally, the contribution of rare and common insects was equal in forest, pasture, and logging areas.
Article
Marine & Freshwater Biology
Ana Carolina Enriquez Espinosa, Erlane Jose Cunha, Yulie Shimano, Samir Rolim, Leandro Mioli, Leandro Juen, Barbara Dunck
Summary: This study aimed to investigate the impact of mining activities on the functional beta diversity of Ephemeroptera nymphs. The results showed that altered environments due to mining activities had higher functional beta diversity of mayflies, indicating greater dissimilarity in species and loss of functional traits.
Article
Marine & Freshwater Biology
Juan Mateo Rivera-Perez, Yulie Shimano, Ana Luiza-Andrade, Nelson Silva Pinto, Lucimar G. Dias, Karine Santos Ferreira, Samir Rolim, Leandro Juen
Summary: This study evaluated the abundance and richness of generalist and specialist genera of EPT in response to mining activities in the Carajas National Forest, Brazil. It found that mining had a negative effect on the richness of specialists but a positive effect on their abundance. On the other hand, generalists negatively responded to mining in terms of richness and abundance.
Article
Biodiversity Conservation
Lenize Batista Calvao, Joas da Silva Brito, Driane Ferreira, Erlane Jose Cunha, Jose Max Barbosa Oliveira-Junior, Leandro Juen
Summary: The conversion of native forests into anthropogenic landscapes in Brazilian Amazonia has been impacting the physical habitat of aquatic systems. The loss of natural vegetation cover has different effects on the diversity and morphology of Amazonian odonates. Preserving continuous natural vegetation cover and riparian vegetation is crucial for maintaining the physical characteristics of streams and the structure of the odonate community.
JOURNAL OF INSECT CONSERVATION
(2023)
Article
Environmental Sciences
Mylena Neves Cardoso, Yulie Shimano, Paulo Vilela Cruz, Rafael Boldrini, Rodolfo Mariano, Jorge Luiz Nessimian, Carlos Molineri, Frederico Falcao Salles, Andre Felipe Alves de Andrade, Paulo De Marco Jr, Leandro Juen
Summary: Environmental changes have negative impacts on biodiversity, especially in high biodiversity areas like the Amazon region. This article focuses on the geographical distributions of Ephemeroptera in the Brazilian Amazon and identifies species and biodiversity hotspots that are poorly protected. It emphasizes the need for further research and conservation efforts.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2023)
Article
Ecology
Lucas Pereira-Moura, Daniel Silas Veras, Fernando Geraldo de Carvalho, Leandro Juen, Sheyla Regina Marques Couceiro
Summary: This study evaluates the impact of habitat specificity and morphological differences on the spatial distribution of Odonata in the Cerrado Maranhense. It found that some species have wider spatial niches, while others have narrower niches.
Article
Environmental Sciences
Viviane Caetano Firmino, Renato Tavares Martins, Leandro Schlemmer Brasil, Erlane Jose Cunha, Raul Bismarck Pinedo-Garcia, Neusa Hamada, Leandro Juen
Summary: Pollution and climate change are significant threats to freshwater biodiversity in the 21st century. Experimental results show that climate change has a negative effect on consumption by Amazonian-stream shredder invertebrates, while the interaction of microplastics and climate change intensifies the negative effect on consumption.
ENVIRONMENTAL POLLUTION
(2023)
Article
Marine & Freshwater Biology
Ana Paula Justino Faria, Raphael Ligeiro, Lenize B. Calvao, Xingli Giam, Mathew A. Leibold, Leandro Juen
Summary: The impact of different land uses on the diversity of aquatic insects in the Amazon forests was studied. It was found that while contiguous and fragmented forest streams had similar environmental conditions, they differed in terms of insect diversity. The highest alpha-diversity was observed in contiguous forest streams, while streams surrounded by livestock farming and primary oil palm plantations had higher beta-diversity. This has important implications for the protection and restoration of forest fragments to prevent the degradation of Amazonian streams.
Article
Ecology
Dieison A. Moi, Margenny Barrios, Giancarlo Tesitore, Maite Burwood, Gustavo Q. Romero, Roger P. Mormul, Pavel Kratina, Leandro Juen, Thaisa S. Michelan, Luciano F. A. Montag, Gabriel M. Cruz, Jorge Garcia-Giron, Jani Heino, Robert M. Hughes, Bruno R. S. Figueiredo, Franco Teixeira de Mello
Summary: Human land-use change poses a significant threat to natural ecosystems globally. This study explores the effects of human land-use on plant and animal communities and their functions, such as biomass production. The findings reveal that intensive human land-uses lead to species loss, trait homogenization, and reduced animal biomass production in streams.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Environmental Sciences
Caroline da Silva Montes, Leonardo Fernandes da Paixa, Bruno Nunes, Zelia Maria Pimentel Nunes, Maria Auxiliadora Pantoja Ferreira, Rossineide Martins da Rocha
Summary: This study assessed environmental quality in Amazonian estuaries by utilizing histological and immunohistochemical biomarkers, along with trace metal analyses in Sciades herzbergii tissues and physical chemical analyses of water. The results showed variations in condition factors and tissue damage levels among samples captured from different locations and seasons, indicating differences in the risks posed to fish health by pollutants.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Ecology
Victor Rennan Santos Ferreira, Bethania Oliveira de Resende, Rafael Costa Bastos, Joas Silva da Brito, Fernando Geraldo de Carvalho, Lenize Batista Calvao, Jose Max Barbosa Oliveira-Junior, Ulisses Gaspar Neiss, Rhainer Ferreira, Leandro Juen
Summary: This article discusses the gaps in knowledge regarding Odonata, particularly in biodiverse environments like the Amazon Rainforest. The authors created a database of functional traits and identified different patterns within the Odonata suborders. They also provided research recommendations based on the findings.
ECOLOGY AND EVOLUTION
(2023)
Article
Agriculture, Dairy & Animal Science
Deise de Lima Cardoso, Diva Anelie de Araujo Guimaraes, Pedro Mayor, Maria Auxiliadora Pantoja Ferreira, Leandro Nassar Coutinho, Frederico Ozanan Barros Monteiro
Summary: This study evaluated the developmental and functional processes of the ovaries in two Neotropical primate species, providing insights into the follicular selection, recruitment, and degeneration in these species.
Article
Fisheries
Luciano Fogaca de Assis Montag, Ricardo Koroiva, Andrea Ribeiro-dos-Santos, Leandro Magalhaes, Giovanna C. C. Cavalcante, Caio S. S. Silva, Savio Guerreiro, Daniel H. F. Gomes, Jorge E. S. de Souza, Sandro J. de Souza, Lidia Brasil Seabra, Maria Dayanne Lima de Lucena, Erival Goncalves Prata, Izabella Cristina da Silva Penha, Thaisa Sala Michelan, Raphael Ligeiro, Leandro Juen
Summary: In this study, we report the complete mitogenome sequence of Flag Tetra and find that it has 17,021 bp, containing 13 protein-coding genes, 22 tRNA genes, and 2 rRNA genes. This information is important for taxonomic purposes and molecular characterization of environmental pollutants.
Article
Biodiversity Conservation
Catalina M. Suarez-Tovar, Maya Rocha-Ortega, Leandro Juen, Alex Cordoba-Aguilar
Summary: Urbanization has led to significant changes in water bodies, posing challenges for aquatic insects. Through our research, we found that larger species with weak sexual dimorphism are more sensitive to urban environments. Additionally, dragonfly species with yellow to red colorations and territorial damselfly species tend to be less sensitive to urban areas.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Entomology
Cristian Camilo Mendoza-Penagos, Leandro Juen, Ulisses Gaspar Neiss, Neusa Hamada, Javier Muzon
Summary: The final-instar larva of Psaironeura tenuissima from the Brazilian Amazon is described in this study. The larvae of Psaironeura are grouped with Neoneura and Protoneura based on the presence of nodated caudal lamellae, but they can be distinguished by the number of labial palp setae. Morphological comparisons were made between P. tenuissima and P. angeloi larvae, as well as those of Neoneura kiautai and Protoneura aurantiaca. The P. tenuissima larva can be differentiated from P. angeloi based on the shape of the prementum's superior margin, projections on the prothorax, caudal lamellae apex shape, and the number of setae in the paraproct ventral margin.
INTERNATIONAL JOURNAL OF ODONATOLOGY
(2023)
Article
Fisheries
Hunter S. Bailey, Ashley N. Fincannon, Lee A. Fuiman
Summary: This study investigated the transfer of fatty acids from broodstock diets to eggs and the time needed for the eggs to equilibrate to the diet in Southern flounder. The findings indicate that different diet treatments significantly affect the fatty acid composition of eggs, and it takes 8-16 weeks for the eggs to adapt to changes in the adult diet. These results are important for improving broodstock diets and feeding protocols in stock-enhancement programs.
Article
Fisheries
Yu Liu, Mingtao Lei, Hector Victor, Yan Wang
Summary: This study confirms the feasibility of replacing raw fish diet with a formulated diet in commercial farming of large yellow croaker, which can increase fish survival and yield, and reduce feed cost and body lipid deposition.
Article
Fisheries
Xiaoyan Zhang, Lize San, Yucong Yang, Yuehong Tao, Jiangong Ren, Yufeng Liu, Zhongwei He, Jiashuo Di, Ziteng Pei, Guixing Wang, Jilun Hou
Summary: Gynogenesis is an effective technique for establishing homogeneous lines and confirming potential chromosomal mechanisms of sex determination in fish. This study successfully induced gynogenetic families in Thamnaconus modestus and established a complete method for gynogenesis induction.
Article
Fisheries
Julieta C. Martinelli, Megan Considine, Helen R. Casendino, Carolyn M. Tarpey, Isadora Jimenez-Hidalgo, Jacqueline L. Padilla-Gamino, Teri L. King, Lorenz Hauser, Steven Rumrill, Chelsea L. Wood
Summary: Shell-boring polychaetes have caused significant damage to mariculture operations worldwide, particularly in the US Pacific region. This study provides a comprehensive dataset on the prevalence, species distribution, and environmental associations of these parasites, highlighting the impact of season, culturing methods, and environmental factors on infestation.
Article
Fisheries
Juan Gao, Xueshan Li, Kangle Lu, Kai Song, Jian Zhang, Ling Wang, Chunxiao Zhang
Summary: This study investigated the effects of dietary protein levels on growth performance, antioxidant capacity, digestive enzyme activity, and metamorphosis rate of bullfrog tadpoles. The optimal dietary protein level for bullfrog tadpoles was estimated to be 42.49%-46.50% of the diet.
Article
Fisheries
Qiang Li, Lijun Duan, Dongsheng Jin, Yuxin Chen, Yirong Lou, Qianjin Zhou, Zhongjie Xu, Fangjie Chen, Hongxian Chen, Guizong Xu, Maocang Yan, Guanjun Yang, Jianfei Lu, Yanjun Zhang, Jiong Chen
Summary: This study developed a centrifugal microfluidic chip with on-chip RPA to detect five pathogenic microorganisms. The chip enabled the parallel analysis of six genetic markers from a single sample and allowed for the highly automated detection of multiple samples. Compared with PCR and DNA sequencing, the on-chip RPA assay showed high sensitivity and specificity for detecting multiple pathogens in shrimp aquaculture.
Article
Fisheries
Xingchen Huo, Pengxu Wang, Fengxia Zhao, Qian Liu, Qingqing Tian, Lingjie Tang, Maolin Lv, Zhaohui Wei, Chunrong Yang, Jianguo Su
Summary: Bacterial diseases in aquaculture ponds have negative effects on sustainable development. The use of composite I20 biotherapy has been shown to effectively treat bacterial diseases in bullfrog ponds, providing a new strategy for controlling bacterial diseases in aquaculture.
Article
Fisheries
Peng Yin, Takaya Saito, Per Gunnar Fjelldal, Bjorn Tharandur Bjornsson, Sofie Charlotte Remo, Sandeep Sharma, Rolf Erik Olsen, Kristin Hamre
Summary: This study aims to investigate the effect of seasonal changes in temperature and photoperiod on the redox metabolism of Atlantic salmon at the molecular level. The research findings suggest that the changing photoperiod and temperature influenced the redox metabolism of Atlantic salmon, highlighting the importance of oxidative status in the ecological implications.
Article
Fisheries
Nicholas Oppong Mensah, Jeffery Kofi Asare, Emmanuel Tetteh-Doku Mensah, Ernest Christlieb Amrago, Frank Osei Tutu, Anthony Donkor
Summary: This study investigates aquaculture farmers' preference for climate-smart aquaculture insurance products, the challenges they face, and their preferred insurance coverage. The results show that farmers prefer Climate-Induced Aquaculture Stock Mortality Insurance and the most significant constraint is the delay in claim settlement.
Article
Fisheries
Qiu-Ping Chai, Pei Wu, Wei-Dan Jiang, Yang Liu, Hong-Mei Ren, Xiao-Wan Jin, Lin Feng, Xiao-Qiu Zhou
Summary: The study found that appropriate levels of potassium diformate (KDF) can enhance the immune defense and mediate the inflammatory process in fish, possibly through the regulation of T cell differentiation via JAK-STAT and NF-kappa B signaling pathways.
Article
Fisheries
Tian Zhu, Haomin Jia, Haopeng Zhang, Yujing Xiao, Cui Han, Jiaxin Yang
Summary: Chicken manure has significant effects on the cultivation of Chlorella and rotifers. The optimal amount of chicken manure extract for continuous cultivation is 10 mLL-1. Chicken manure can promote the growth of Chlorella and improve the fatty acid composition, indirectly enhancing the growth condition and fatty acid content of rotifers.
Article
Fisheries
Zheng Luo, Yang Yu, Zhenning Bao, Fuhua Li
Summary: This study analyzed the heritability and genetic correlation of two growth traits in Pacific white shrimp and evaluated the genomic prediction using different genomic selection models. The results showed that the NeuralNet model had the highest prediction accuracy and better prospects for predicting shrimp growth traits.
Article
Fisheries
Alberto Ruiz, Ignasi Sanahuja, Karl B. Andree, Dolors Furones, Paul G. Holhorea, Josep A. Calduch-Giner, Jose J. Pastor, Marc Vinas, Jaume Perez-Sanchez, Sofia Morais, Enric Gisbert
Summary: Supplementing diets with a combination of spice oleoresins can reduce lipid accumulation and inflammation in farmed fish. The combination of spice oleoresins also has an immunomodulatory effect on the fish's intestinal immune system, potentially offering anti-inflammatory benefits.
Article
Fisheries
Beibei Zhao, Renhui Mei, Le Li, Di Hu, Lei Li
Summary: This study reveals that JfCXCL8_L1a and JfCXCL8_L1b have different immune pathways, and JfCXCL8_L1b plays a significant role in enhancing the adaptive immunity of T cell-dependent antigen.
Article
Fisheries
Yuhang Liu, Danying Cao, Nan Wu, Xuyang Zhao, Qingsong Zhu, Lian Su, Fatima Altaf, Qianqian Zhang, Haokun Liu, Yongming Li, Bruno Hamish Unger, Yingyin Cheng, Wanting Zhang, Aihua Li, Yaping Wang, Xiao-Qin Xia
Summary: Based on previous research, sinomenine has been found to protect mucosal immunity in farmed fish species by preventing intestinal pathological changes and regulating gene expression related to inflammation. It also enhances immune homeostasis and controls the growth of pathogenic bacteria.