Article
Ecology
Ian A. Richter, Henrique Correa A. Giacomini, Derrick Tupper De Kerckhove, Donald Jackson, Nicholas Edward Jones
Summary: Correcting for sampling biases is crucial in ecological research. In this study, hierarchical Bayesian models were used to estimate capture probability in fish populations, taking into account body size and environmental factors. The model improved the accuracy of abundance estimates in different fish datasets.
ECOLOGICAL MODELLING
(2022)
Review
Multidisciplinary Sciences
Oscar Rodriguez de Rivera, Rachel McCrea
Summary: Removal models have been used for over 80 years to estimate unknown population sizes and more recently for management actions on non desirable species or translocation evaluation. Despite evolution, the data collection protocol remains similar, with individuals being captured and removed at each sampling occasion. This methodological review highlights developments in the analysis of removal data for ecologists looking to implement these approaches, showcasing the attractions and potential future role of this technique.
Article
Mathematics, Applied
Aili Zhang, Ping Chen, Shuanming Li, Wenyuan Wang
Summary: This paper adopts a three-barrier model to describe the financial stress leading to bankruptcy of an insurer, with insurer's financial status classified into solvent, insolvent, and liquidated states. The surplus processes at solvent and insolvent states are modeled by two spectrally negative Levy processes, and the joint distribution of the time of liquidation, surplus at liquidation, and historical high of the surplus until liquidation is obtained using techniques of excursions in fluctuation theory. The results have semi-explicit expressions in terms of the scale functions and the Levy triplets associated with the two underlying Levy processes.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Fisheries
Graham F. Montague, Daniel E. Shoup
Summary: In this study, accuracy, precision, and optimal sampling duration for low-frequency electrofishing (LFE) sampling of Flathead Catfish were evaluated. The capture probability of Flathead Catfish was found to be correlated with fish length and water temperature. Different lakes showed variations in catch rates and size bias, but size bias within each lake was relatively consistent at different temperatures. The highest and most consistent catch rates were observed from June to September when water temperatures were above 24 degrees C. The minimum number of 5-minute LFE efforts needed to achieve a relative standard error below 25% was found when water temperature was above 20 degrees C from May to September.
NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
(2022)
Article
Astronomy & Astrophysics
Zheng-Liang Liang, Chongjie Mo, Ping Zhang
Summary: This paper explores the electronic many-body effect in dark matter (DM) detection, specifically focusing on the dielectric response of the target material in DM-electron scattering. Practical density functional theory (DFT) is used to estimate excitation event rates for diamond and silicon semiconductor targets, with comparisons made between energy loss functions calculated with and without local field effects. The numerical methods prove to be consistent and robust, and the study also investigates the impact of in-medium effects on the detection of solar-reflected DM flux in silicon-based detectors.
Article
Mathematics
Jiaowei Shi, Shiyan Sun, Jun Xie, Chaobing Zheng
Summary: The paper proposes a method to analyze the dynamic damage probability of laser systems and calculates the damage probability by constructing energy density distribution models and probability distributions. The simulation validates the effectiveness of the method, which provides important guidance for the shooting timing of high-energy laser systems.
Article
Engineering, Mechanical
Marko Nagode, Jernej Klemenc
Summary: This study compared different probability density mixtures and estimation algorithms for modeling rainflow matrices. Procedures were identified to enable more thorough consideration of clusters with less probable load cycles.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Thermodynamics
Yushi Liang, Chunbing Wu, Mulan Zhang, Xiaodong Ji, Yixian Shen, Jianjun He, Zeyu Zhang
Summary: This paper proposes a joint probability density function of air density and wind speed, aiming to integrate the air density distribution into statistical wind resource models. Results indicate that the Weibull-Gamma distribution is able to accurately describe the air density empirical distribution, and the Weibull-Burr distribution is the most appropriate distribution for describing wind speed regimes. The application of joint distribution has the capability to simplify the evaluation procedures for wind resource assessment while significantly increasing the accuracy of the evaluation results.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Review
Environmental Sciences
Jonathan P. Townsend, Chris S. Renschler, Jared Aldstadt
Summary: Understanding bat habitat use and species-specific foraging behavior is crucial for effective bat conservation. This study in Chautauqua County, NY, utilized GIS and bioacoustic sampling to investigate bat habitat interactions, identifying the significance of forested areas for bats. The methodology proved useful in gathering large datasets efficiently and can serve as a baseline for future conservation efforts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Jernej Klemenc, Gorazd Fajdiga
Summary: This paper presents a novel approach to modeling the fatigue-life properties of wood by considering its mass density, loading direction, and processing lot. The proposed model improves upon the traditional model by incorporating these additional factors. Experimental data from spruce beams validates the model's ability to accurately replicate the fatigue curves of wood.
Article
Environmental Sciences
Pedro M. Felix, Ana Pombo, Francisco Azevedo e Silva, Tomas Simoes, Tiago A. Marques, Ricardo Melo, Cristina Rocha, Joao Sousa, Eliana Venancio, Jose L. Costa, Ana C. Brito
Summary: This study aims to determine the temporal and spatial patterns of distribution of H. mammata in the NE-Atlantic area, SW Portugal, and to determine the species' habitat preferences according to environmental conditions. The research found that abiotic and biotic parameters of the water column are not the main drivers shaping the distribution of H. mammata, which prefers environmental stability, the presence of shelter, and habitat complexity.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Computer Science, Software Engineering
Philipp Henzler, Valentin Deschaintre, Niloy J. Mitra, Tobias Ritschel
Summary: The study introduces a method for learning a latent space to capture and reproduce visual material appearance efficiently. By converting images into latent material codes and generating BRDF model parameters based on these codes, the method can render realistic appearances in various scenes and lighting conditions.
ACM TRANSACTIONS ON GRAPHICS
(2021)
Article
Ecology
Lars K. Lindso, Pierre Dupont, Lars Rod-Eriksen, Ida Pernille Oystese Andersskog, Kristine Roaldsnes Ulvund, Oystein Flagstad, Richard Bischof, Nina E. Eide
Summary: The study utilized SCR modeling and NGS data to estimate red fox density, finding lower densities in the central study area and a positive effect of forest cover on density. In contrast, the southern study area had slightly higher red fox densities. Home range sizes varied between study areas, with detection probability being session-dependent and influenced by sampling effort.
Article
Geosciences, Multidisciplinary
Ratiranjan Jena, Biswajeet Pradhan, Shilpa Gite, Abdullah Alamri, Hyuck-Jin Park
Summary: This study applied SHAP to estimate earthquake probability using two different ML approaches (ANN and RF) and compared their performance. The results showed that SHAP could help interpret the models' outputs and identify the contributing factors for earthquake probability estimation. Testing on the Indian subcontinent demonstrated high overall accuracy of the ANN and RF models.
Article
Thermodynamics
Maisam Wahbah, Baraa Mohandes, Tarek H. M. EL-Fouly, Mohamed Shawky El Moursi
Summary: Uncertainties in wind energy and photovoltaic power systems pose challenges for power system planners and operators. This article proposes a novel probability density estimation method for wind speed and solar irradiance, outperforming traditional parametric and nonparametric approaches. The results demonstrate the accuracy and robustness of the proposed model's probability density estimates.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Fisheries
Miguel Petrere Jr, Davi Butturi-Gomes
Summary: This short communication aims to raise awareness about the misuse of confidence intervals in Ecology and Fisheries statistical models that ignore the lack of independence.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Peter-John F. Hulson, Benjamin C. Williams
Summary: This study evaluates the impact of considering ageing error and growth variability on the determination of input sample size (ISS) in statistical catch-at-age assessment models. The results show that including these sources of uncertainty decreases the ISS determined through bootstrap methods. This indicates that there is more variability in age composition and conditional age-at-length data than previously accounted for. Including these sources of uncertainty improves the estimation of ISS and subsequently improves the quality of stock assessment models.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jason M. Cope
Summary: Fishery resource assessment is a complex and challenging task, but with the use of different analysis methods and tools, effective management guidance can be provided even with limited data and resources.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Regina L. Cunha, Joana I. Robalo, Sara M. Francisco, Ines Farias, Rita Castilho, Ivone Figueiredo
Summary: Recent advances in genomics have greatly contributed to the assessment of fish stocks by providing precise identification of genetic boundaries. This study used a genotyping-by-sequencing approach to reveal the existence of an additional genetic cluster of blackspot seabream in the northeast Atlantic, which was not previously identified. Factors such as ocean circulation patterns and local upwelling may play a role in the genetic differentiation observed in this study.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Huihua Lee, Mark N. Maunder, Kevin R. Piner
Summary: Estimating growth is important for fish population assessment. Integrated assessment models and the influence of misfitting size composition data have renewed interest in how growth is modeled. The available data types control how the length-at-age relationship is estimated. Estimating length-at-age is complex due to multiple sources of biological variability and difficulties in obtaining representative samples.
FISHERIES RESEARCH
(2024)
Article
Fisheries
A. Ladino, I. Perez-Arjona, V. Espinosa, M. Chillaron, V. Vidal, L. M. Godinho, G. Moreno, G. Boyra
Summary: This study examines the acoustic properties of skipjack tuna and Atlantic mackerel, both bladderless pelagic fish species, and explains the significant differences observed. The research shows that the differences in material properties of their tissues predict a more than 10 dB greater reduced target strength in skipjack compared to mackerel at certain frequencies.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Nelly Pena-Cutimbo, Cristel Cordero-Maldonado, Clara Ortiz-Alvarez, Joanna Alfaro-Shigueto, Jeffrey C. Mangel
Summary: Bycatch is a global problem for marine megafauna. This study assessed the bycatch interactions of the Peruvian artisanal purse-seine fishery in 2019 and found that all taxa groups were affected by bycatch. Dusky dolphins, guanay cormorants, and eagle rays were the most frequently reported bycatch species.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jen-Ming Liu, Po-Yuk So
Summary: The set-net fishery is an environmentally friendly fishery posing little risk to the marine ecosystem. This study identified ocean temperature, sea surface factors, and climatic factors as the main factors affecting the installation of set-nets.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Josie L. Palmer, Carina Armstrong, Hasan D. Akbora, Damla Beton, Cigdem Caglar, Brendan J. Godley, Kristian Metcalfe, Meryem Ozkan, Robin T. E. Snape, Annette C. Broderick
Summary: Small-scale fisheries are vital for global food security and cultural heritage, but the lack of information hampers effective management and mitigation of ecological impacts. This study provides the first comprehensive overview of the small-scale fishery fleet in Northern Cyprus. The fleet operates mainly over the continental shelf, using static and demersal gear types, and catches a diverse range of species, some of which are threatened. The findings can be used to improve fisheries management and conservation measures.
FISHERIES RESEARCH
(2024)