Article
Biodiversity Conservation
Sangeeta Roy, Santanu Ray, Surjya Kumar Saikia
Summary: The key challenge in conservation and resource management is tracking species extinctions and preserving biodiversity through optimized funding. Freshwater ecosystems are currently threatened, with fishes being particularly vulnerable to climate change. Understanding key environmental indicators is crucial for determining fish distribution.
ECOLOGICAL INDICATORS
(2021)
Article
Marine & Freshwater Biology
Karin C. R. de Almeida, Joao M. N. C. Moreira, Fernanda P. Paez, Ingrid C. Marcal, Gustavo M. Teixeira
Summary: The study characterized the natural diet and feeding dynamics of the endemic freshwater crab Aegla castro in southeastern Brazil. The species was found to be an omnivorous generalist and opportunist, with consistent feeding activity throughout the year. Future research should focus on other Aegla species to inform trophic network analyses and models.
JOURNAL OF CRUSTACEAN BIOLOGY
(2021)
Article
Biodiversity Conservation
Zakea Sultana, Isaac Adeyemi Babarinde, Akira Asakura
Summary: In this study, the phylogenetic relationship and genetic diversity among species of the genus Pagurus were evaluated using publicly available mitochondrial and nuclear markers. The results showed a high species diversity and complex phylogenetic relationships within the genus Pagurus, and resolved the taxonomic position of some species that had not been assigned to any morphology-based groups. The study provides a comprehensive snapshot of the diversity of pagurid hermit crabs.
Article
Marine & Freshwater Biology
Orlando Lam-Gordillo, Marco Antonio May-Ku, Pedro-Luis Ardisson
Summary: Due to anthropogenic pressures, there has been an increased interest in understanding the relationship between species and their environment in order to mitigate the global loss of biodiversity. However, there is still limited knowledge about this relationship, especially for small non-commercial species. This study focuses on documenting the environmental variables that influence the abundance of rare frog crab species in the southwest Gulf of Mexico. The results show that depth, salinity, temperature, and sediment composition are the most influential factors affecting the abundance of these frog crab species.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Marine & Freshwater Biology
Valeria P. Diawol, Gabriela E. Musin, Pablo A. Collins, Federico Giri
Summary: The study evaluated the density and spatial distribution pattern of the freshwater anomuran crab, Aegla uruguayana, in relation to temporal and spatial scales. Findings showed that the density varied among studied populations but was not influenced by seasonality, while the distribution pattern displayed a clumped pattern possibly due to environmental heterogeneity. The species exhibited gregarious behavior and may have ecological strategies for optimal resource use.
JOURNAL OF CRUSTACEAN BIOLOGY
(2021)
Article
Environmental Sciences
Tatjana Mijosek, Vlatka Filipovic Marijic, Zrinka Dragun, Nesrete Krasnici, Dusica Ivankovic, Zuzana Redzovic, Marijana Erk
Summary: The study investigated the distribution of essential elements and Cd among biomolecules of different molecular masses in the intestine of brown trout and Prussian carp. Despite differences in biological characteristics, the obtained profiles showed mostly similar patterns in both species. This suggests potential similarities in metal distribution and binding patterns in the intestines of different fish species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Ecology
Juliette Becquet, Nicolas Lamouroux, Thomas Condom, Isabelle Gouttevin, Maxence Forcellini, Bertrand Launay, Antoine Rabatel, Sophie Cauvy-Fraunie
Summary: Ongoing hydrological alterations due to climate change and anthropogenic uses of water have significant implications for freshwater biodiversity, and quantifying the relative effects of environmental variables on macroinvertebrates is crucial for predicting their responses. This study in the French Alps examined the impact of physico-chemistry, hydraulics, and hydrology on the distribution of alpine macroinvertebrate communities and taxa. The results showed that these environmental variables significantly influenced the composition and structure of macroinvertebrate communities.
FRESHWATER BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Andre Trevisan, Murilo Z. Marochi, Setuko Masunari
Summary: The study evaluated the population structure and growth of two Aegla schmitti populations, revealing variations between males and females and the impact of sampling methods on demographic categories. Recruitment mainly occurred between October and December, with females having a lifespan of 2 years and males varying between 2.5 and 3 years in different rivers.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2021)
Article
Ecology
Richard Sevcik, Jan Riegert, Karel Stastny, Jan Zarybnicky, Marketa Zarybnicka
Summary: This study utilized atlas data from the Czech Republic to investigate the distribution patterns of owl species in relation to elevation and temperature. Results revealed that elevation and temperature significantly influenced owl distribution, with different species showing preferences for different elevation and temperature conditions.
ECOLOGICAL INFORMATICS
(2021)
Article
Multidisciplinary Sciences
Lihui Wang, Yufu Ning, Xiumei Chen, Shukun Chen, Hong Huang
Summary: This paper proposes a theorem about the conditional uncertainty distribution of two uncertain variables, which holds regardless of their independence. Furthermore, it investigates the conditional inverse uncertainty distribution within the framework of Uncertainty Theory, including specific cases. Illustrative examples are provided to clarify the findings.
Article
Plant Sciences
Cesar Chavez-Villavicencio, Elier Tabilo-Valdivieso, Sergio Acuna-Videla
Summary: This study describes the habitat of the endemic freshwater crab Aegla papudo in Chile and identifies the variable that explains its abundance. The research findings reveal that the species exists in environments with transparent water and tree cover, and the presence of juvenile individuals suggests a reproductive season between summer and fall.
Article
Environmental Sciences
P. Sathish Kumar, G. Dharani, J. Santhanakumar, Dilip Kumar Jha, Vikas Pandey, S. Venkatnarayanan, J. Prince Prakash Jebakumar, C. Muthukumar, R. Arthur James
Summary: This study investigated the spatial variation of phytoplankton community along the Tamil Nadu coast and found that human activities and nutrient inputs have altered the coastal ecosystem. The dominance of pennate diatoms, attributed to higher NO3- concentrations, in the phytoplankton community highlights the impact of agricultural discharge. Cluster analysis revealed distinct differences in physicochemical parameters between the northern and southern districts of the TN coast.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Yu-Tong Ji, Xiao-Juan Zhou, Qian Yang, Yuan-Biao Lu, Jun Wang, Jie-Xin Zou
Summary: A new species classification scheme of the freshwater crab genus Aparapotamon has been discovered, and mitochondrial genome characteristics and protein-coding genes associated with altitudinal adaptation have been identified. Geological movements of the Qinghai-Tibet Plateau and Hengduan Mountains significantly influenced speciation and differentiation of the genus.
Article
Limnology
Riley P. Buley, Hannah E. Correia, Ash Abebe, Tahir B. Issa, Alan E. Wilson
Summary: This study utilized observational data from lakes and reservoirs around the world to identify the environmental variables most strongly associated with microcystin (MC) concentrations, revealing factors such as location, total nitrogen, turbidity, and pH as the most significant predictors, while total phosphorus was found not to be a strong predictor of MC.
Article
Biochemistry & Molecular Biology
Hamid Reza Ghanavi, Paniz Rahimi, Mina Tavana, Kamran Rezaei Tavabe, Arash Jouladeh-Roudbar, Ignacio Doadrio
Summary: The aim of this study is to elucidate the phylogenetic relationships of the genus Potamon and discuss the historical freshwater connectivity in the Mediterranean region. By using multiple genetic markers, a robust phylogenetic tree was reconstructed and time-calibrated using Bayesian methods. Historical biogeography methods were then applied to assess the ancestral distribution ranges of the group. The results suggest that the Mediterranean Sea could have served as a key pathway for exchange of freshwater fauna, and the origin of the Potamon genus is likely in Western Asia, possibly Eastern Iran.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2023)
