Parasites of the Spotted Sucker, Minytrema melanops (Cypriniformes: Catostomidae) from Arkansas and Oklahoma

During October 2015, March and April 2016 and again between March and April 2017, 15 Spotted Sucker (Minytrema melanops) were collected from sites in the Ouachita (n = 5), Red (n = 1), and St. Francis (n = 5) river drainages, Arkansas, and the Arkansas River drainage, Oklahoma (n = 4), and examined for protozoan and metazoan parasites. Found were Calyptospora sp., Myxobolus sp., Pseudomurraytrema alabarrum, Biacetabulum banghami, Penarchigetes oklensis, and Acanthocephalus sp. New host and distributional records are documented for these parasites

A decade of monitoring Atlantic cod Gadus morhua spawning aggregations in Massachusetts Bay using passive acoustics

© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Caiger, P. E., Dean, M. J., DeAngelis, A. I., Hatch, L. T., Rice, A. N., Stanley, J. A., Tholke, C., Zemeckis, D. R., & Van Parijs, S. M. A decade of monitoring Atlantic cod Gadus morhua spawning aggregations in Massachusetts Bay using passive acoustics. Marine Ecology Progress Series, 635, (2020): 89-103, doi:10.3354/meps13219.Atlantic cod Gadus morhua populations in the northeast USA have failed to recover since major declines in the 1970s and 1990s. To rebuild these stocks, managers need reliable information on spawning dynamics in order to design and implement control measures; discovering cost-effective and non-invasive monitoring techniques is also favorable. Atlantic cod form dense, site-fidelic spawning aggregations during which they vocalize, permitting acoustic detection of their presence at such times. The objective of this study was to detect spawning activity of Atlantic cod using multiple fixed-station passive acoustic recorders to sample across Massachusetts Bay during the winter spawning period. A generalized linear modeling approach was used to investigate spatio-temporal trends of cod vocalizing over 10 consecutive winter spawning seasons (2007-2016), the longest such timeline of any passive acoustic monitoring of a fish species. The vocal activity of Atlantic cod was associated with diel, lunar, and seasonal cycles, with a higher probability of occurrence at night, during the full moon, and near the end of November. Following 2009 and 2010, there was a general decline in acoustic activity. Furthermore, the northwest corner of Stellwagen Bank was identified as an important spawning location. This project demonstrated the utility of passive acoustic monitoring in determining the presence of an acoustically active fish species, and provides valuable data for informing the management of this commercially, culturally, and ecologically important species.Thanks to Eli Bonnell, Genevieve Davis, Julianne Bonell, Samara Haver, and Eric Matzen for assistance in MARU deployments, Dana Gerlach and Heather Heenehan for help in passive acoustic data analysis, and the NEFSC passive acoustics group for useful discussions. Funding for 2007−2012 passive acoustic surveys was provided by Excelerate Energy and Neptune LNG to Cornell University. Fieldwork for 2013−2015 was funded through the 2013−2014 NOAA Saltonstall-Kennedy grant program (Award No. NA14NMF4270027), and jointly funded by The Nature Conservancy, Massachusetts Division of Marine Fisheries, and the Cabot Family Charitable Foundation. Funding for 2016 SoundTrap data was provided by NOAA’s Ocean Acoustics Program (4 Sanctuaries Project)

Arsenotučekite, Ni 18 Sb 3 AsS 16 , a new mineral from the Tsangli chromitites, Othrys ophiolite, Greece

AbstractArsenotučekite, Ni18Sb3AsS16, is a new mineral discovered in the abandoned chromium mine of Tsangli, located in the eastern portion of the Othrys ophiolite complex, central Greece. Tsangli is one of the largest chromite deposit at which chromite was mined since 1870. The Tsangli chromitite occurs as lenticular and irregular bodies. The studied chromitites are hosted in a strongly serpentinized mantle peridotite. Arsenotučekite forms anhedral to subhedral grains that vary in size between 5 μm up to 100 μm, and occurs as single phase grains or is associated with pentlandite, breithauptite, gersdorffite and chlorite. It is brittle and has a metallic luster. In plane-polarized light, it is creamy-yellow, the bireflectance is barely perceptible and the pleochroism is weak. In crossed polarized reflected light, the anisotropic rotation tints vary from pale blue to brown. Internal reflections were not observed. Reflectance values of arsenotučekite in air (Ro, Re′ in %) are: 41.8–46.4 at 470 nm, 47.2–50.6 at 546 nm, 49.4–52.3 at 589 nm, and 51.3–53.2 at 650 nm. The empirical formula of arsenotučekite, based on 38 atoms per formula unit, and according to the structural results, is (Ni16.19Co1.01Fe0.83)Σ18.03Sb3(As0.67Sb0.32)Σ0.99S15.98. The mass density is 6.477 g·cm−3. The simplified chemical formula is (Ni,Co,Fe)18Sb3(As,Sb)S16. The mineral is tetragonal and belongs to space group I4/mmm, with a = 9.7856(3) Å, c = 10.7582(6) Å, V = 1030.2(6) Å3 and Z = 2. The structure is layered (stacking along the c-axis) and is dominated by three different Ni-coordination polyhedral, one octahedral and two cubic. The arsenotučekite structure can be considered as a superstructure of tučekite resulting from the ordering of Sb and As. The name of the new mineral species indicates the As-dominant of tučekite. Arsenotučekite occurs as rims partly replacing pentlandite and irregularly developed grains. Furthermore, it is locally associated with chlorite. These observations suggest that it was likely precipitated at relatively low temperatures during: 1) the late hydrothermal stages of the ore-forming process by reaction of Sb- and As-bearing solutions with magmatic sulfides such as pentlandite, or 2) during the serpentinization of the host peridotite. The mineral and its name have been approved by the Commission of New Minerals, Nomenclature, and Classification of the International Mineralogical Association (number 2019–135)

Athlete monitoring perspectives of sports coaches and support staff: A scoping review

Objectives: To map and summarise the sports coaches’ and support staff\u27s perspectives on athlete monitoring to explore the breadth of literature, identify knowledge gaps and inform future research. Design: Scoping review based on the Joanna Briggs Institute (JBI) methodology. Methods: SPORTDiscus, MEDLINE, APA PsycInfo, and Embase databases were searched in English until 6 September 2022. The inclusion criteria were (1) coach(es) and/or support staff were explicitly questioned about their knowledge, perceptions, understanding, opinions, and/or applied practice of athlete monitoring; (2) results could be directly attributed to coach(es) and/or support staff; (3) primary research projects that are available as full-text. Exclusion criteria were applied for grey literature. The data were extracted into a custom-made data charting spreadsheet. Results: From the 4381 identified records, 42 met the eligibility criteria. Almost all the studies were conducted within the Anglosphere and at the national or international level. The main reasons for coaches and support staff to implement athlete monitoring were to reduce injury and illness, inform the training program, and improve or maintain performance. While training load monitoring is generally seen as valuable the coaches and support staff acknowledged that there was no perfect scientific approach to monitoring athletes and believed it should be part of the bigger picture, emphasising communication. Conclusions: There has been a recent surge in research demonstrating that athlete monitoring extends beyond quantitative information and encompasses non-quantified subjective information. This further substantiates that coaches and support staff will remain central to athlete monitoring, even amidst the anticipated technological progress

Helminth Parasites of the Golden Topminnow, Fundulus chrysotus (Cyprinidontiformes: Fundulidae) from Desha County, Arkansas

During July 2019, 21 Golden Topminnows (Fundulus chrysotus) were collected from an oxbow lake in McGehee, Desha County, Arkansas, and examined for parasites. Found were 4 taxa of endoparasites, including 3 digeneans (Clinostomum marginatum, Homalometron sp., and Posthodiplostomum minimum) and a nematode (Spiroxys contortus). We document a new host record for S. contortus and the first report of parasites in F. chrysotus from the lower Mississippi River Drainage

Zonisamide (CI-912) and Cognition: Results from Preliminary Study

Nine patients with refractory partial seizures were evaluated in a pilot study of a new anticonvulsant compound, zonisamide (l,2-benzisoxazole-3-methane-sulfonamide; CI-912). Cognitive functioning was evaluated prior to treatment with zonisamide and repeated after 12 and 24 weeks of treatment with zonisamide. At minimum steady-state plasma concentrations >30 jjug/ml, zonisamide appeared to affect specific cognitive functions such as acquisition and consolidation of new information. Previously learned material, such as vocabulary, and psychomotor performance were not affected. Verbal learning was affected, while visual-perceptual learning was unimpaired. These cognitive effects were observed in the absence of the usual clinical signs and symptoms of toxicity. A linear relationship was found between impairment of cognitive abilities and the minimum plasma concentration (r = -0.73; p < 0.05). Findings also suggest the development of tolerance to the adverse cognitive effects. RESUMEN En un estudio piloto realizado para valorar la eficacia de la zonisamida (1,2-Bencisoxazol-melanosulfonamida [CI-912]), un nuevo compuesto anticonvulsive se han evaluado unos 9 pa-cientes con ataques parciales refractarios al tratamiento. Se de-terminÓ la capacidad cognitiva anterior al tratamiento y se re-pitio 12 y 24 semanas despuÉs del tratamiento con zonisamida. Con concentraciones plasmÁticas mÍnimas estables per encima de 30 mcg/ml, la zonisamida afectÓ las funciones cognitives especÍficas tales como la adquisiciÓn y consolidaciÓn de nueva informaciÓn. El material aprendido previamente, tal como el vo-cabulario, y las funciones psicomotoras no se afectaron. El aprendizaje verbal se modificÓ mientras que el aprendizaje visuo-perfectivo no se modificÓ. Estos efectos cognitivos se ob-servaron en ausencia de los habituales signos y sÍntomas clÍnicos de toxicidad. Se encontrÓ una relaciÓn lineal entre la alteraciÓn de las posibilidades cognitivas y la concentraciÓn plasmÁtica mÍnima (r = -0.73, p < 0.05). Estos hallazgos tambiÉn sugieren el desarrollo de una tolerancia a los efectos cognitivos adversos. ZUSAMMENFASSUNG 9 Patienten mit rezidivierenden Partial-AnfÄllen wurden in einer Pilotstudie mit einer neuen antiepileptischen Substanz: Zonisamide untersucht. Die kognitiven Funktionen wurden vor der Behandlung mit Zonisamide geprtÜft und nach 12 und 24 Therapiewochen mit Zonisamide wiederholt. Bei einem Min-destplasmaspiegel von 30 mcg/ml schien Zonisamide spezifische kognitive FÄhigkeiten wie Aufnahme und Speicherung neuer In-formationen zu beeintrÄchtigen. Vorher gelernte Inhalte wie sprachliche und psychomotorische Fertigkeiten wurden nicht beeinflußt. Verbales Lernen war ebenfalls betroffen, wÄhrend visuell, perzeptives Lernen nicht verschlechtert war. Diese BeeintrÄchtigung kognitiver Funktionen wurde bei fehlenden klinischen Intoxikationszeichen beobachtet. Eine lineare Bezie-hung zwischen Verschlechterung kognitiver FÄhigkeiten und Mindest-Plasmaspiegel konnte hergestellt werden (r = -0,73; p < 0,05). Allerdings lassen die Ergebnisse auch auf eine GewÖhnung an diese unerwÜnschten Nebenwirkungen schließen.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65995/1/j.1528-1157.1987.tb03624.x.pd