Results 81 to 90 of about 53,398 (254)

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source

Two new species of Acanthocotyle Monticelli, 1888 (Monogenea: Acanthocotylidae), parasites of two deep-sea skates (Elasmobranchii: Rajiformes) in the South-East Pacific

Parasites & Vectors, 2019
Background Parasites of deep-sea fishes from the South-East Pacific (SPO) are poorly known. Of c.1030 species of fish found in this area, 100–150 inhabit the deep-sea (deeper than 200 m).
Luis A. Ñacari, Fabiola A. Sepúlveda, Ruben Escribano, Marcelo E. Oliva   +3 more
doaj   +1 more source

Hidden partnerships in the dark: Cold‐water coral–fish associations in Fiordland, New Zealand

Journal of Fish Biology, EarlyView.
Abstract The ichthyofauna of the Fiordland ecosystems of southern Aotearoa New Zealand was documented during four remotely operating vehicle (ROV) dives between 100 and 350 m depth. A total of 26 fish species were documented within two fiord basins.
Alexander H. Knorrn, Peter Marriott, Kareen Schnabel, André Freiwald   +3 more
wiley   +1 more source

New specimens and records of chondrichthyan fishes (Vertebrata: Chondrichthyes) off the Mexican Pacific coast Nuevos ejemplares y nuevos registros de peces cartilaginosos (Vertebrata: Chondrichthyes) de la costa del Pacífico mexicano

Revista Mexicana de Biodiversidad, 2010
New specimens and new records of occurrence for 10 species of chondrichthyan (elasmobranch and chimaeroid) fishes previously unknown or little documented for the continental shelf of the Mexican Pacific are reported.
Gorgonio Ruiz-Campos, José Luis Castro-Aguirre, Eduardo F. Balart, Lucía Campos-Dávila, Rafael Vélez-Marín   +4 more
doaj  

International Specialization of Major Trading Countries in Global Trade of Sports Goods [PDF]

The analysis of international trade in sports goods is still in its infancy. Only four articles dealing with the topic have appeared in economic literature so far.
Madeleine Andreff, Wladimir Andreff
core  

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

Journal of Anatomy, EarlyView.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek, Ann Huysseune, Robert Cerny   +2 more
wiley   +1 more source

Design and operation of the air-cooled beam dump for the extraction line of CERN's Proton Synchrotron Booster (PSB)

, 2019
A new beam dump has been designed, built, installed and operated to withstand the future proton beam extracted from the Proton Synchrotron Booster (PSB) in the framework of the LHC Injector Upgrade (LIU) Project at CERN, consisting of up to 1E14 protons ...
Calviani, Marco, Ciccotelli, Alessia, Kaiser, Paul, Perillo-Marcone, Antonio, Sarrio, Alba, Solieri, Nicola, Venturi, Valentina, Vlachoudis, Vasilis   +7 more
core   +1 more source

Molecular insights into electroreceptor ribbon synapses from differential gene expression in sturgeon lateral line organs

Journal of Anatomy, EarlyView.
The expression of various genes involved in synapse development, stability and/or function was studied in developing mechanosensory neuromasts and electrosensory ampullary organs in sterlet sturgeon. Most were shared, including Slc17a8, Slc1a3 and Nrxn3, but Cbln18 was neuromast‐restricted and Tulp1 was ampullary organ‐restricted.
Alexander S. Campbell, Martin Minařík, David Buckley, Tanmay Anand, David Gela, Martin Pšenička, Clare V. H. Baker   +6 more
wiley   +1 more source

On rare skate Bathyraja bergi Dolganov, 1985 from the waters of Russia with notes on its taxonomy

Известия ТИНРО, 2015
Morphological description for 12 specimens of skate Bathyraja bergi caught in the North-West Pacific in 1978-2013. Plastic signs and counts for teeth, vertebras, pectoral fin, and intestinal valve are presented.
Vladimir N. Dolganov, Talija T. Ginanova
doaj   +1 more source

Identifying and Mapping Industrial Districts Through a Spatially Constrained Cluster‐Wise Regression Approach

Journal of Regional Science, Volume 65, Issue 2, Page 403-428, March 2025.
ABSTRACT The aim of this article is to exploit an innovative spatial econometric approach to map and study the evolving patterns of industrial districts (IDs). The procedure can be classified as a k‐means cluster‐wise regression procedure and is designed to detect homogeneous areas of subcontracting activity.
Jacopo Canello, Francesco Vidoli, Elisa Fusco, Nicoletta Giudice   +3 more
wiley   +1 more source