Article
Behavioral Sciences
Raul Rio
Summary: This study provides the first scientific evidence that spinner dolphins produce a distinctive acoustic signal called signature whistle. The discovery improves our understanding of bioacoustics in spinner dolphins.
Article
Agriculture, Dairy & Animal Science
Belen Quintana Martin-Montalvo, Ludovic Hoarau, Ophelie Deffes, Sylvain Delaspre, Fabienne Delfour, Anne-Emmanuelle Landes
Summary: Marine wildlife tourism has rapidly developed in Reunion Island, mainly driven by the high demand for interactions with resident spinner dolphins. Close proximity of dolphin-watching vessels to dolphin groups can lead to short-term behavioral impacts, which may have deleterious long-term effects on the population. Increased vessel numbers and non-compliance with local guidelines significantly raise avoidance responses in dolphins, potentially causing energetic costs and decreasing survival and reproductive success at individual and population levels.
Article
Environmental Sciences
Tatiane Combi, Rosalinda Carmela Montone, Carmen Corada-Fernandez, Pablo A. Lara-Martin, Joao Bosco Gusmao, Marcos Cesar de Oliveira Santos
Summary: The study found that the levels of persistent organic pollutants in spinner dolphins from the Fernando de Noronha Archipelago are lower than those in dolphins from the Indian and Pacific Oceans. Despite the relatively low levels of contaminants, the presence of chemicals poses an additional stressor to these marine mammals.
MARINE POLLUTION BULLETIN
(2022)
Review
Physics, Multidisciplinary
Song Zhong-Chang, Zhang Jin-Hu, Feng Wen, Yang Wu-Yi, Zhang Yu
Summary: Odontocetes have evolved a unique natural sonar system to detect targets, utilizing echolocation to gather information about size, material and ranges of targets. Further studies are needed to understand how odontocetes extract meaningful information from echoes.
ACTA PHYSICA SINICA
(2021)
Article
Marine & Freshwater Biology
Arturo Bell Enriquez-Garcia, Francisco Villegas-Zurita, Arturo Tripp-Valdez, Xchel G. Moreno-Sanchez, Felipe Galvan-Magana, Fernando R. Elorriaga-Verplancken
Summary: This study investigated the coexistence of Stenella attenuata and Stenella longirostris in the Mexican South Pacific using stable isotope analyses. The results showed that the two dolphin species mainly segregated their feeding habits based on carbon sources, with SA having a broader isotopic niche and using more coastal habitats than SL. The most important prey species were the mesopelagic fish Benthosema panamense and the epipelagic fish Hyporhamphus naos, with B. panamense being more related to SL.
MARINE MAMMAL SCIENCE
(2022)
Article
Engineering, Marine
Martina Gregorietti, Elena Papale, Maria Ceraulo, Clarissa de Vita, Daniela Silvia Pace, Giorgio Tranchida, Salvatore Mazzola, Giuseppa Buscaino
Summary: The study found that the temporal patterns of dolphin's acoustic presence in a shallow-water area in the Sicily Strait exhibit higher frequencies during the night, Autumn, and Winter. However, when dolphins are close to the monitoring station, the acoustic activity does not show any distinct temporal pattern. This suggests that the dolphins' acoustic activity may be influenced by seasonal changes.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Biology
Tracey Dornan, Sophie Fielding, Ryan A. Saunders, Martin J. Genner
Summary: This study provides insights into the abundance and distributions of ecologically significant mesopelagic fish stocks across the Southern Ocean ecosystem by estimating species-specific acoustic target strength for the dominant mesopelagic fish in the Scotia Sea, interpreting signals received in acoustic surveys, and calculating mesopelagic biomass. The estimate of Southern Ocean mesopelagic fish biomass is significantly higher than previous net-based estimates, and a peak in fish biomass towards the seasonal ice-edge may be at risk under future climate change scenarios.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Ruihao Wang, Yimeng Liu, Rolf Muller
Summary: The ability of certain bat species to navigate in dense vegetation using short biosonar echoes provides an alternative and parsimonious approach to achieving autonomy in complex natural environments. Despite lower data rates and spatial resolution compared to human-made sensing systems, bats living in dense habitats can reliably detect narrow passageways in foliage.
BIOINSPIRATION & BIOMIMETICS
(2022)
Article
Engineering, Marine
Ching-Tang Hung, Wei-Yen Chu, Wei-Lun Li, Yen-Hsiang Huang, Wei-Chun Hu, Chi-Fang Chen
Summary: The study developed an algorithm to assist marine mammal observers in detecting and localizing whistles for convenient observation of cetaceans' migration path and population dynamics. Comparative experiments showed that the algorithm had higher localization accuracy under specific conditions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Review
Oceanography
Airam N. Sarmiento-Lezcano, M. Pilar Olivar, Marian Pena, Jose M. Landeira, Laia Armengol, Ione Medina-Suarez, Arturo Castellon, Santiago Hernandez-Leon
Summary: This study investigates the vertical distribution of biomass and respiration of non-migratory mesopelagic fishes. The results show that Cyclothone species have a higher biomass compared to Argyropelecus hemigymnus, and their respiration is lower in the bathypelagic zone.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Multidisciplinary Sciences
Jason N. Bruck, Sam F. Walmsley, Vincent M. Janik
Summary: This study found that dolphins can distinguish individuals through gustatory stimuli and integrate information from acoustic and taste inputs, indicating the existence of a modality independent concept for known conspecifics.
Review
Forestry
Pan Yang, Li Huang, Suni He, Xianghua Zeng, Yinyi Chen, Haimiao Wang
Summary: This study investigates the adaptation mechanisms of clonal plants under heterogeneous environmental conditions. It finds that clonal plants respond to water stress through phenotypic plasticity and physiological integration, ensuring reproduction and population stability.
Article
Environmental Sciences
Yair Richter, Nezah Balal, Yosef Pinhasi
Summary: This study presents a reliable classification method for walking pedestrians and animals using a radar in the millimeter waves regime. A deep neural network was employed for the classification, achieving high accuracy and high-quality classification of various targets.
Article
Dermatology
Mirjam J. Schaap, Finola M. Bruins, Xuehui He, Kadri Orro, Malou Peppelman, Piet E. J. van Erp, Elke M. G. J. de Jong, Hans J. P. M. Koenen, Ellen H. van den Bogaard, Marieke M. B. Seyger
Summary: Transdermal analysis patches (TAPs) can noninvasively measure skin-derived proteins in pediatric psoriasis patients, with the potential for patient-friendly monitoring in daily clinical practice.
SKIN PHARMACOLOGY AND PHYSIOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Duo Deng, Hua Zhao, Yanhua Han, Yi Liu, Yan Li
Summary: This work presents a scheme to measure and demultiplex OAM beams with topological charges from -32 to +32 using a specially engineered two-dimensional 64-focus vortex demultiplexing array. The phase mask for generating this array was calculated by a dense phase stitching algorithm to reduce modal crosstalk in the OAM detection range.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)