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https://www.readbyqxmd.com/read/28734569/factor-associated-variations-in-the-home-range-of-a-resident-adriatic-common-bottlenose-dolphin-population
#1
Nikolina Rako-Gospić, Marko Radulović, Tihana Vučur, Grgur Pleslić, Draško Holcer, Peter Mackelworth
This study investigates the influence of the most dominant factors (association patterns, gender, natal philopatry and anthropogenic pressure) on the home range size of the 44 most resident common bottlenose dolphins (Tursiops truncatus) inhabiting the waters of the Cres-Lošinj archipelago (north Adriatic Sea, Croatia), a recently declared NATURA 2000 SCI. Results show that variations in home range patterns (MCP, 95% KDE and 50% KDE home range size) among the individual resident dolphins are primarily related to differences in gender and reflect the way in which different genders respond to external stressors...
July 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28733494/end-captivity-of-whales-and-dolphins-charity-warns
#2
(no author information available yet)
No abstract text is available yet for this article.
July 22, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28732224/three-dimensional-changes-in-the-upper-airway-of-skeletal-class-iii-patients-after-different-orthognathic-surgical-procedures
#3
Yuxue Yang, Kai Yang, Ying Zhao
PURPOSE: We hypothesized that 3-dimensional changes in the upper airway of patients with skeletal Class III malocclusion are different after mandibular setback and maxillary advancement (MSMA) compared with mandibular setback (MS) and that upper airway changes and the amount of jaw movement are correlated. PATIENTS AND METHODS: Skeletal Class III patients who underwent MS surgery or MSMA surgery were included in this retrospective cohort study. Cone beam computed tomography scans were acquired before and 3 months after surgery...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712674/the-ebbinghaus-illusion-in-the-gray-bamboo-shark-chiloscyllium-griseum-in-comparison-to-the-teleost-damselfish-chromis-chromis
#4
Theodora Fuss, Vera Schluessel
This is the first study to comparatively assess the perception of the Ebbinghaus-Titchener circles and variations of the Delboeuf illusion in four juvenile bamboo sharks (Chiloscyllium griseum) and five damselfish (Chromis chromis) using identical training paradigms. We aimed to investigate whether these two species show similarities in the perceptual integration of local elements into the global context. The Ebbinghaus-Titchener circles consist of two equally sized central test circles surrounded by smaller or larger circles of different size, number and/or distance...
May 29, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28709108/vibrio-parahaemolyticus-and-v-alginolyticus-associated-meningo-encephalitis-in-a-bottlenose-dolphin-tursiops-truncatus-from-the-adriatic-coast-of-italy
#5
Ludovica Di Renzo, Gabriella Di Francesco, Chiara Profico, Cristina E Di Francesco, Nicola Ferri, Daniela Averaimo, Giovanni Di Guardo
A case of Vibrio parahaemolyticus- and V. alginolyticus-associated meningo-encephalitis in a bottlenose dolphin (Tursiops truncatus) found stranded along the Adriatic coast of Italy in 2016 is herein reported, along with a minireview on V. parahaemolyticus and V. alginolyticus infections in aquatic mammals. Macroscopically, two abscesses were found in the dolphin's forebrain, along with an extensive, bilateral, parasitic broncho-pneumonia. Histologically, a suppurative-to-pyogranulomatous meningo-encephalitis involved the brain but not the cerebellum...
July 1, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28704486/a-common-bottlenose-dolphin-tursiops-truncatus-prey-handling-technique-for-marine-catfish-ariidae-in-the-northern-gulf-of-mexico
#6
Errol I Ronje, Kevin P Barry, Carrie Sinclair, Mark A Grace, Nélio Barros, Jason Allen, Brian Balmer, Anna Panike, Christina Toms, Keith D Mullin, Randall S Wells
Few accounts describe predator-prey interactions between common bottlenose dolphins (Tursiops truncatus Montagu 1821) and marine catfish (Ariopsis felis Linnaeus 1766, Bagre marinus Mitchill 1815). Over the course of 50,167 sightings of bottlenose dolphin groups in Mississippi Sound and along the Florida coast of the Gulf of Mexico, severed catfish heads were found floating and exhibiting movements at the surface in close proximity to 13 dolphin groups that demonstrated feeding behavior. These observations prompted a multi-disciplinary approach to study the predator-prey relationship between bottlenose dolphins and marine catfish...
2017: PloS One
https://www.readbyqxmd.com/read/28700111/isotopic-homogeneity-throughout-the-skin-in-small-cetaceans
#7
Marina Arregui, Marta Josa, Alex Aguilar, Asunción Borrell
RATIONALE: Isotope ratios from skin samples have been widely used to study cetacean trophic ecology. Usually, isotopic skin uniformity has been assumed, despite the heterogeneity of this tissue. This study aims to investigate 1) regional isotopic variation within the skin in cetaceans, and 2) isotopic variation among internal tissues. METHODS: Stable carbon (δ(13) C values) and nitrogen (δ(15) N values) isotope ratios were measured in 11 skin positions in 10 common dolphins (Delphinus delphis) and 9 striped dolphins (Stenella coeruleoalba)...
July 12, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28695256/anomalously-high-recruitment-of-the-2010-gulf-menhaden-brevoortia-patronus-year-class-evidence-of-indirect-effects-from-the-deepwater-horizon-blowout-in-the-gulf-of-mexico
#8
Jeffrey W Short, Harold J Geiger, J Christopher Haney, Christine M Voss, Maria L Vozzo, Vincent Guillory, Charles H Peterson
Gulf menhaden (Brevoortia patronus) exhibited unprecedented juvenile recruitment in 2010 during the year of the Deepwater Horizon well blowout, exceeding the prior 39-year mean by more than four standard deviations near the Mississippi River. Abundance of that cohort remained exceptionally high for two subsequent years as recruits moved into older age classes. Such changes in this dominant forage fish population can be most parsimoniously explained as consequences of release from predation. Contact with crude oil induced high mortality of piscivorous seabirds, bottlenose dolphin (Tursiops truncatus), waders, and other fish-eating marsh birds, all of which are substantial consumers of Gulf menhaden...
July 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28694444/preliminary-estimates-of-the-abundance-and-fidelity-of-dolphins-associating-with-a-demersal-trawl-fishery
#9
Simon J Allen, Kenneth H Pollock, Phil J Bouchet, Halina T Kobryn, Deirdre B McElligott, Krista E Nicholson, Joshua N Smith, Neil R Loneragan
The incidental capture of wildlife in fishing gear presents a global conservation challenge. As a baseline to inform assessments of the impact of bycatch on bottlenose dolphins (Tursiops truncatus) interacting with an Australian trawl fishery, we conducted an aerial survey to estimate dolphin abundance across the fishery. Concurrently, we carried out boat-based dolphin photo-identification to assess short-term fidelity to foraging around trawlers, and used photographic and genetic data to infer longer-term fidelity to the fishery...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28681399/distribution-of-calretinin-immunoreactivity-in-the-lateral-nucleus-of-the-bottlenose-dolphin-tursiops-truncatus-amygdala
#10
A M Rambaldi, B Cozzi, A Grandis, M Canova, M Mazzoni, C Bombardi
The amgdaloid complex consists of different nuclei, each with unique cytoarchitectonic, chemoarchitectonic and connectional characteristics. Most of the inputs coming from cortical and subcortical areas enter the amygdala via the lateral nucleus, which makes it the main receiving structure of the complex. The activity of its neurons is coordinated and modulated by different inhibitory, GABAergic-interneurons, which can be classified for their expression of various calcium-binding proteins, as well as by morphological characteristics...
July 6, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28671496/effects-of-oral-megestrol-acetate-administration-on-the-hypothalamic-pituitary-adrenal-axis-of-male-bottlenose-dolphins-tursiops-truncatus
#11
Dorian S Houser, Cory D Champagne, Eric D Jensen, Cynthia R Smith, Lara S Cotte, Jenny M Meegan, Rebecca K Booth, Samuel K Wasser
OBJECTIVE To evaluate the impact of oral megestrol acetate (MA) administration on adrenal function in male bottlenose dolphins (Tursiops truncatus). DESIGN Serial cross-sectional study. ANIMALS 8 adult male dolphins, all of which were receiving MA at various daily doses (range, 0 to 60 mg, PO) for the control of reproductive behavior. PROCEDURES Blood samples were collected every 2 weeks for 1 year from dolphins trained to voluntarily provide them. Cortisol, ACTH, and other hormone concentrations were measured in serum or plasma via radioimmunoassay or ELISA...
July 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28667850/correlation-of-trace-element-concentrations-between-epidermis-and-internal-organ-tissues-in-indo-pacific-humpback-dolphins-sousa-chinensis
#12
Xian Sun, Ri-Qing Yu, Mei Zhang, Xiyang Zhang, Xi Chen, Yousheng Xiao, Yulong Ding, Yuping Wu
Trace element accumulation in the epidermis of cetaceans has been less studied. This study explored the feasibility of using epidermis as a surrogate tissue to evaluate internal contaminant burdens in Indo-Pacific humpback dolphin (Sousa chinensis). Eleven trace elements were analyzed in the epidermis, muscle and liver tissues from 46 individuals of dolphins stranded along the Pearl River Estuary (PRE) coast between 2007 and 2013. Trace elemental concentrations varied among the three tissues, generally with the highest concentrations found in liver tissues and lowest in the epidermis (except Zn, As, and Pb)...
June 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28662978/concentrations-of-metallic-elements-in-kidney-liver-and-lung-tissue-of-indo-pacific-bottlenose-dolphin-tursiops-aduncus-from-coastal-waters-of-zanzibar-tanzania
#13
Edgar C Mapunda, Othman C Othman, Leonard D Akwilapo, Hindrik Bouwman, Haji Mwevura
Concentrations of metallic elements in kidney, liver and lung tissues of Indo-Pacific bottlenose dolphins Tursiops aduncus from coastal waters of Zanzibar were determined using inductively coupled plasma - optical emission spectroscopy. Cadmium, chromium, copper, and zinc were quantifiable in all tissues at concentration ranges of 0.10-150, 0.08-3.2, 1.1-88 and 14-210μg/g dry mass, respectively. Copper and zinc was significantly higher in liver, and females had significantly higher Cd in liver, and chromium in lung...
June 26, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28659604/long-term-monitoring-of-dolphin-biosonar-activity-in-deep-pelagic-waters-of-the-mediterranean-sea
#14
Francesco Caruso, Giuseppe Alonge, Giorgio Bellia, Emilio De Domenico, Rosario Grammauta, Giuseppina Larosa, Salvatore Mazzola, Giorgio Riccobene, Gianni Pavan, Elena Papale, Carmelo Pellegrino, Sara Pulvirenti, Virginia Sciacca, Francesco Simeone, Fabrizio Speziale, Salvatore Viola, Giuseppa Buscaino
Dolphins emit short ultrasonic pulses (clicks) to acquire information about the surrounding environment, prey and habitat features. We investigated Delphinidae activity over multiple temporal scales through the detection of their echolocation clicks, using long-term Passive Acoustic Monitoring (PAM). The Istituto Nazionale di Fisica Nucleare operates multidisciplinary seafloor observatories in a deep area of the Central Mediterranean Sea. The Ocean noise Detection Experiment collected data offshore the Gulf of Catania from January 2005 to November 2006, allowing the study of temporal patterns of dolphin activity in this deep pelagic zone for the first time...
June 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28656362/limited-capacity-of-working-memory-in-unihemispheric-random-walks-implies-conceivable-slow-dispersal
#15
Kun Wei, Suchuan Zhong
Phenomenologically inspired by dolphins' unihemispheric sleep, we introduce a minimal model for random walks with physiological memory. The physiological memory consists of long-term memory which includes unconscious implicit memory and conscious explicit memory, and working memory which serves as a multi-component system for integrating, manipulating and managing short-term storage. The model assumes that the sleeping state allows retrievals of episodic objects merely from the episodic buffer where these memory objects are invoked corresponding to the ambient objects and are thus object-oriented, together with intermittent but increasing use of implicit memory in which decisions are unconsciously picked up from historical time series...
June 27, 2017: Biological Cybernetics
https://www.readbyqxmd.com/read/28651774/correlation-and-reliability-of-cone-beam-computed-tomography-nasopharyngeal-volumetric-and-area-measurements-as-determined-by-commercial-software-against-nasopharyngoscopy-supported-diagnosis-of-adenoid-hypertrophy
#16
Camila Pachêco-Pereira, Noura Alsufyani, Michael Major, Sandra Palomino-Gómez, José Roberto Pereira, Carlos Flores-Mir
INTRODUCTION: The aim of this study was to evaluate the diagnostic correlation and reliability of Dolphin Imaging fully automated segmentation (Dolphin Imaging and Management Solutions, Chatsworth, Calif) for assessing adenoid hypertrophy. This was investigated through 3 modes: (1) intraobserver and interobserver agreement of repeated airway auto-segmentation procedures, (2) correlation between auto-segmentation measures of volume and minimal cross-sectional airway against nasopharyngoscopy, and (3) optimum diagnostic cutoff thresholds for volume and minimal cross-sectional airway identified and tested with sensitivity and specificity analyses...
July 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28648671/late-complications-of-percutaneous-tracheostomy-using-the-balloon-dilation-technique
#17
J B Araujo, J M Añón, A García de Lorenzo, A M García-Fernandez, M Esparcia, J Adán, S Relanzon, D Quiles, V de Paz, A Molina
OBJECTIVE: The purpose of this study was to determine the late complications in critically ill patients requiring percutaneous tracheostomy (PT) using the balloon dilation technique. DESIGN: A prospective, observational cohort study was carried out. SCOPE: Two medical-surgical intensive care units (ICU). PATIENTS: All mechanically ventilated adult patients consecutively admitted to the ICU with an indication of tracheostomy...
June 22, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28646873/labelling-effects-and-adolescent-responses-to-peers-with-depression-an-experimental-investigation
#18
Louise Dolphin, Eilis Hennessy
BACKGROUND: The impact of illness labels on the stigma experiences of individuals with mental health problems is a matter of ongoing debate. Some argue that labels have a negative influence on judgments and should be avoided in favour of information emphasising the existence of a continuum of mental health/illness. Others believe that behavioral symptoms are more powerful influencers of stigma than labels. The phenomenon has received little attention in adolescent research, despite the critical importance of the peer group at this developmental stage...
June 24, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28642866/evaluation-of-serum-for-pathophysiological-effects-of-prolonged-low-salinity-water-exposure-in-displaced-bottlenose-dolphins-tursiops-truncatus
#19
Ruth Y Ewing, Blair Mase-Guthrie, Wayne McFee, Forrest Townsend, Charles A Manire, Michael Walsh, Rose Borkowski, Gregory D Bossart, Adam M Schaefer
We conducted a retrospective study of serum biochemistry and hematologic findings from displaced, out-of-habitat bottlenose dolphins (Tursiops truncatus) exposed to various low salinity environments in waters along the southern United States including southeastern Atlantic and northern Gulf of Mexico. Serum sodium, chloride, and calculated osmolality were significantly lower and below reference ranges in displaced animals compared to free-ranging case control animals. This suggests clinical hyponatremia, hypochloremia, and hypo-osmolality due to an uptake of low saline water from the environment...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28640918/identifying-key-demographic-parameters-of-a-small-island-associated-population-of-indo-pacific-bottlenose-dolphins-reunion-indian-ocean
#20
Violaine Dulau, Vanessa Estrade, Jacques Fayan
Photo-identification surveys of Indo-Pacific bottlenose dolphins were conducted from 2009 to 2014 off Reunion Island (55°E33'/21°S07'), in the Indian Ocean. Robust Design models were applied to produce the most reliable estimate of population abundance and survival rate, while accounting for temporary emigration from the survey area (west coast). The sampling scheme consisted of a five-month (June-October) sampling period in each year of the study. The overall population size at Reunion was estimated to be 72 individuals (SE = 6...
2017: PloS One
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