Can species guilds act as hubs for energy transfer in macrophyte meadows of Amazonian floodplain lakes?
An Acad Bras Cienc. 2024 Apr 5;96(1):e20230327. doi: 10.1590/0001-3765202420230327. eCollection 2024.ABSTRACTAquatic macrophytes are the main autochthonous component of primary production in the Amazon Basin. Floating meadows of these plants support habitats with highly diverse animal communities. Fishes inhabiting these habitats have been assumed to use a broad range of food items and compose a particular food web. We employed carbon (δ13C) and nitrogen (δ15N) stable isotope analysis to draw the trophic structure of these habitats and to trace the energy flow by its trophic levels. Fishes and other animals from 18 indep...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Ana Cristina B Oliveira Carlos E C Freitas Marc Pouilly Kedma Cristine Yamamoto Lawrence Edward Hurd Pieter Dehart Jamerson A Santos Carlos Eduardo Rezende Marcelo G DE Almeida Flavia Kelly Siqueira-Souza Source Type: research
Toxic effects of aniline in liver, gills and kidney of freshwater fish Channa punctatus after acute exposure
Comp Biochem Physiol C Toxicol Pharmacol. 2024 Apr 8:109916. doi: 10.1016/j.cbpc.2024.109916. Online ahead of print.ABSTRACTAniline (C6H5NH2) is one of the hazardous aromatic amine where an amino group (-NH2) is connected to phenyl ring (C6H5). Based on the evaluation of the 96-hour LC50 of aniline, two sublethal concentrations (4.19 mg/l and 8.39 mg/l) were selected for acute exposure tests in freshwater fish Channa punctatus. The liver, gills and kidney of fish being the principal sites of xenobiotic material accumulation, respiration, biotransformation, and excretion are the focus of the present study. Throughout the ex...
Source: Comparative biochemistry and physiology. Toxicology and pharmacology : CBP - April 10, 2024 Category: Biochemistry Authors: Geetika Sharma Pooja Chadha Source Type: research
Evaluation of sub-chronic toxicity of melamine via systematic or oral delivery in adult zebrafish based on behavioral endpoints
Neurotoxicology. 2024 Apr 9;102:68-80. doi: 10.1016/j.neuro.2024.04.003. Online ahead of print.ABSTRACTMelamine-tainted products have been found in the market and raised issues about food safety. Recent studies done in rodents and humans demonstrated the toxicities of melamine, especially in causing kidney damage and bladder stone formation. However, very few studies assessed its behavior toxicity in organisms, including fish. Therefore, in this study, the researchers aim to determine whether sub-chronic exposure to melamine via oral and systematic administration could induce behavioral abnormality in zebrafish. After 14 d...
Source: Neurotoxicology - April 10, 2024 Category: Neurology Authors: Hsiu-Chao Chen Wen-Wei Feng Gilbert Audira Kevin Adi Kurnia San-Ho Hung Agnes L Castillo Marri Jmelou M Roldan Chung-Der Hsiao Chih-Hsin Hung Source Type: research
Can species guilds act as hubs for energy transfer in macrophyte meadows of Amazonian floodplain lakes?
An Acad Bras Cienc. 2024 Apr 5;96(1):e20230327. doi: 10.1590/0001-3765202420230327. eCollection 2024.ABSTRACTAquatic macrophytes are the main autochthonous component of primary production in the Amazon Basin. Floating meadows of these plants support habitats with highly diverse animal communities. Fishes inhabiting these habitats have been assumed to use a broad range of food items and compose a particular food web. We employed carbon (δ13C) and nitrogen (δ15N) stable isotope analysis to draw the trophic structure of these habitats and to trace the energy flow by its trophic levels. Fishes and other animals from 18 indep...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Ana Cristina B Oliveira Carlos E C Freitas Marc Pouilly Kedma Cristine Yamamoto Lawrence Edward Hurd Pieter Dehart Jamerson A Santos Carlos Eduardo Rezende Marcelo G DE Almeida Flavia Kelly Siqueira-Souza Source Type: research
Redox profile of silver catfish challenged with Aeromonas hydrophila and treated with hexane extract of Hesperozygis ringens (Benth.) Epling through immersion bath
This study aimed to evaluate the effect of the HEHR, administered through single immersion bath, on lipid peroxidation and antioxidant defenses in muscle and liver tissue of silver catfish challenged with A. hydrophila. The results showed that the oxidative status of silver catfish was altered, although oxidative stress was not triggered during the experiment. HEHR at 30 mg/L (HEHR30) was not characterized as a pro-oxidant agent in the presence of infection, unlike florfenicol and HEHR at 15 mg/L treatments in some cases. In short, HEHR30 provided an important increase in hepatic catalase activity, characterizing one of th...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Isadora A Rosa Adriane E Bianchini Caroline A Bressan Fab íola T Ferrari Karine Ariotti Natacha C Mori Guerino Bandeira Junior Carlos G Pinheiro Maria Am ália Pavanato Juliana F Cargnelutti Bernardo Baldisserotto Berta Maria Heinzmann Source Type: research
Karyotypic changes and diversification time in Epinephelidae groupers (Perciformes). Implications on reproductive isolation
An Acad Bras Cienc. 2024 Apr 5;96(1):e20221011. doi: 10.1590/0001-3765202420221011. eCollection 2024.ABSTRACTGroupers (Epinephelidae and Serranidae) have attracted special attention to fish farming, and their species offer good opportunities for successful hybridizations. Cytogenetic data allow a better understanding of the role of karyotypic diversification in the acquisition of post-zygotic reproductive isolation (RI). Thus, chromosomal analyses were performed on E. striatus (Caribbean Sea), E. coioides and E. tauvina (Indo-Pacific Region), using standard procedures and mapping of six repetitive DNA classes by the in sit...
Source: An Acad Bras Cienc - April 10, 2024 Category: Science Authors: Karlla Danielle J Amorim Gide ão W W F Costa Cl óvis C Motta-Neto Rodrigo X Soares Amanda T Borges Daniel D Benetti Marcelo B Cioffi Luiz A C Bertollo Alongklod Tanomtong Wagner F Molina Source Type: research
Evaluation of sub-chronic toxicity of melamine via systematic or oral delivery in adult zebrafish based on behavioral endpoints
Neurotoxicology. 2024 Apr 9;102:68-80. doi: 10.1016/j.neuro.2024.04.003. Online ahead of print.ABSTRACTMelamine-tainted products have been found in the market and raised issues about food safety. Recent studies done in rodents and humans demonstrated the toxicities of melamine, especially in causing kidney damage and bladder stone formation. However, very few studies assessed its behavior toxicity in organisms, including fish. Therefore, in this study, the researchers aim to determine whether sub-chronic exposure to melamine via oral and systematic administration could induce behavioral abnormality in zebrafish. After 14 d...
Source: Neurotoxicology - April 10, 2024 Category: Neurology Authors: Hsiu-Chao Chen Wen-Wei Feng Gilbert Audira Kevin Adi Kurnia San-Ho Hung Agnes L Castillo Marri Jmelou M Roldan Chung-Der Hsiao Chih-Hsin Hung Source Type: research
Sensors, Vol. 24, Pages 2430: Deep Learning-Based Fish Detection Using Above-Water Infrared Camera for Deep-Sea Aquaculture: A Comparison Study
Xiaohua Huang
Long-term, automated fish detection provides invaluable data for deep-sea aquaculture, which is crucial for safe and efficient seawater aquafarming. In this paper, we used an infrared camera installed on a deep-sea truss-structure net cage to collect fish images, which were subsequently labeled to establish a fish dataset. Comparison experiments with our dataset based on Faster R-CNN as the basic objection detection framework were conducted to explore how different backbone networks and network improvement modules influenced fish detection performances. Furthermore, we also experimented with the effects o...
Source: Sensors - April 10, 2024 Category: Biotechnology Authors: Gen Li Zidan Yao Yu Hu Anji Lian Taiping Yuan Guoliang Pang Xiaohua Huang Tags: Article Source Type: research
Molecules, Vol. 29, Pages 1720: Rapid Apta-Chromogenic Detection Method for Nitrofuran Metabolite Determination
Unajak
Nitrofuran (NF) contamination in food products is a global problem resulting in the banned utilization and importation of nitrofuran contaminated products. A novel chromogenic detection method using a specific DNA aptamer with high affinity and specificity to nitrofurans was developed. Single-stranded DNA aptamers specific to nitrofuran metabolites, including 3-amino-2-oxazolidinone (AOZ), 3-amino-5-methylmorpholino-2-oxazolidinone (AMOZ), and 1-aminohydantoin (AHD), were isolated using magnetic bead-SELEX. The colorimetric detection of nitrofurans using gold nanoparticles (AuNPs) exhibited an AOZ detection ran...
Source: Molecules - April 10, 2024 Category: Chemistry Authors: Navarat Chaisri Chutikarn Jaengphop Ikuo Hirono Sasimanas Unajak Tags: Article Source Type: research
Development and Implementation of a Pediatric Nursing Emergency Behavioral Health Assessment Tool
The national pediatric mental and behavioral health crisis dramatically increased emergency department mental and behavioral health visits and changed emergency nursing practice. Acuity assessment determines patient severity level and supports appropriate resources and interventions. There are no established nursing tools that assess pediatric mental or behavioral health acuity in the emergency department setting. Our goal was to develop and implement the novel pediatric emergency nurse Emergency Behavioral Health Acuity Assessment Tool. (Source: Journal of Emergency Nursing: JEN)
Source: Journal of Emergency Nursing: JEN - April 10, 2024 Category: Nursing Authors: Ryan O ’Donnell, Katherine A. Hinderer, Daniel Belanger, Danielle Chenard, Erin Boyle, Kevin Borrup, Meghan Fish, Michael Brimacombe, Steven Rogers Tags: Practice Improvement Source Type: research
Efficient Lead Removal by Assembly of Bio ‐Derived Ellagate Framework, Which Enables Electrocatalytic Reduction of CO2 to Formate
Natural ellagic acid (eagle) grasps the Pb2+ ions (fish) and the water body is then purified (from opaque dirty green to clear blue, analogous to efficient removal of Pb2+ ions). The ellagate-lead framework (EA-Pb, eagle holding the fish) reduces CO2 to formic acid under electrocatalytic conditions (CO2 molecules get into the eagle holding the fish and turn to be formic acid driven by the thunder). AbstractLead (Pb) poisoning and CO2-induced global warming represent two exemplary environmental and energy issues threatening humanity. Various biomass-derived materials are reported to take up Pb and convert CO2 electrochemica...
Source: Small - April 9, 2024 Category: Nanotechnology Authors: Song Chen,
Lai ‐Hon Chung,
Shaoru Chen,
Zhixin Jiang,
Ning Li,
Jieying Hu,
Wei‐Ming Liao,
Jun He Tags: Research Article Source Type: research
Bio-QSARs 2.0: Unlocking a new level of predictive power for machine learning-based ecotoxicity predictions by exploiting chemical and biological information
Environ Int. 2024 Apr 4;186:108607. doi: 10.1016/j.envint.2024.108607. Online ahead of print.ABSTRACTPractical, legal, and ethical reasons necessitate the development of methods to replace animal experiments. Computational techniques to acquire information that traditionally relied on animal testing are considered a crucial pillar among these so-called new approach methodologies. In this light, we recently introduced the Bio-QSAR concept for multispecies aquatic toxicity regression tasks. These machine learning models, trained on both chemical and biological information, are capable of both cross-chemical and cross-species...
Source: Environment International - April 9, 2024 Category: Environmental Health Authors: Jochen P Zubrod Nika Galic Maxime Vaugeois David A Dreier Source Type: research
Atorvastatin causes developmental and behavioral toxicity in yellowstripe goby (Mugilogobius chulae) embryos/larvae via disrupting lipid metabolism and autophagy processes
Aquat Toxicol. 2024 Apr 6;271:106909. doi: 10.1016/j.aquatox.2024.106909. Online ahead of print.ABSTRACTAtorvastatin (ATV) is one of the most commonly prescribed lipid-lowering drugs detected frequently in the environment due to its high use and low degradation rate. However, the toxic effects of residual ATV in the aquatic environment on non-target organisms and its toxic mechanisms are still largely unknown. In the present study, embryos of a native estuarine benthic fish, Mugilogobius chulae, were employed to investigate the developmental and behavioral toxic effects of ATV including environmentally relevant concentrati...
Source: Aquatic Toxicology - April 9, 2024 Category: Toxicology Authors: Yufei Zhao Yimeng Wang Jinzhi Ren Weibo Gong Xiangping Nie Ying Peng Jianjun Li Chunni Duan Source Type: research
Correction to: Cytotoxicity of Prymnesium parvum extracts and prymnesin analogs on epithelial fish gill cells RTgill-W1 and the human colon cell line HCEC-1CT
Arch Toxicol. 2024 Apr 9. doi: 10.1007/s00204-024-03716-3. Online ahead of print.NO ABSTRACTPMID:38592475 | DOI:10.1007/s00204-024-03716-3 (Source: Archives of Toxicology)
Source: Archives of Toxicology - April 9, 2024 Category: Toxicology Authors: Elisabeth Varga H élène-Christine Prause Matthias Riepl Nadine Hochmayr Deniz Berk Eva Attakpah Endre Kiss Nikola Medi ć Giorgia Del Favero Thomas Ostenfeld Larsen Per Juel Hansen Doris Marko Source Type: research
Schreckstoff: It takes two to panic
Curr Biol. 2024 Apr 8;34(7):R278-R281. doi: 10.1016/j.cub.2024.02.069.ABSTRACTSchreckstoff (fear substance) is an alarm signal released by injured fish that induces a fear response. Its chemical nature has long been debated. A new study finds that zebrafish Schreckstoff is composed of at least three components, two of which elicit the fear response only in combination.PMID:38593771 | DOI:10.1016/j.cub.2024.02.069 (Source: Current Biology)
Source: Current Biology - April 9, 2024 Category: Biology Authors: Marcus C Stensmyr Source Type: research
