Results 131 to 140 of about 996 (161)

Pathogenicity of Citrobacter freundii Causing Mass Mortalities of Macrobrachium rosenbergii and Its Induced Host Immune Response. [PDF]

Microorganisms
Chen A, Qian Q, Cai X, Yin J, Liu Y, Dong Q, Gao X, Jiang Q, Zhang X.   +8 more
europepmc   +1 more source

An Annotated Checklist of Monogeneans (Platyhelminthes, Monogenea) from Aquatic Vertebrates in Peru: A Review of Diversity, Hosts and Geographical Distribution. [PDF]

Animals (Basel)
Santillán LA, Cruces CL, Sáez GM, Martínez-Rojas R, Mondragón-Martínez A, Murrieta Morey GA, Quiñones M, Luque JL, Chero JD.   +8 more
europepmc   +1 more source

Natural resources used in the traditional medicine of the Marinaú community, Caxiuanã forest, Brazil. [PDF]

Front Pharmacol
de Oliveira PMC, Sousa JPB, Albernaz LC, Salmen Espindola L, Coelho-Ferreira M.   +4 more
europepmc   +1 more source

A systematic review of reports on aquatic envenomation: are there global hot spots and vulnerable populations? [PDF]

J Venom Anim Toxins Incl Trop Dis
Kadler R, Pirkle C, Yanagihara A.
europepmc   +1 more source

Exceptional concentration of fish diversity in Yasuní National Park, Ecuador (Napo River Basin). [PDF]

Biodivers Data J
Escobar-Camacho D, Valdiviezo-Rivera J, Carrillo-Moreno C, Argüello P, Swing K.   +4 more
europepmc   +1 more source

Testicular Morphology and Spermatogenesis in Potamotrygon motoro: Insights Into Reproduction of Freshwater Stingrays [PDF]

Journal of Morphology
Electron microscopy of Potamotrygon motoro spermatozoa. a – Illustration of a schematic sperm cell depicting the helical head, intermediate piece (midpiece), and flagellum. b ‐ Helical heads (Hh) of spermatozoa inserted into the cytoplasm of Sertoli cells (S) through openings in the plasma membrane. Scales: 10 μm.
Patricia Postingel Quirino, Rosicleire Veríssimo-Silveira, Alexandre Ninhaus-Silveira   +2 more
exaly   +5 more sources

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin [PDF]

Journal of Fish Biology
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Nelson Ferreira Fontoura, Danilo Araujo Soares Pereira   +1 more
exaly   +3 more sources

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Production of live offspring following unilateral (left) ovariectomized Potamotrygon rays (Potamotrygon castexi, Potamotrygon leopoldi, and Potamotrygon motoro)

Journal of the American Veterinary Medical Association, 2023
Abstract OBJECTIVE To evaluate the surgical technique and subsequent clinical observations (reproductive and ultrasound findings) of left unilateral ovariectomy in 3 species of Potamotrygon rays—Potamotrygon castexi, Potamotrygon leopoldi, and Potamotrygon motoro—for reproductive management. ANIMALS Between 2018 and 2019, multiple Potamotrygon rays (
Chelsea E, Anderson, James D, Gillis, Sarah N, Miller, Michelle R, Davis   +3 more
openaire   +2 more sources

Serial reversal learning in freshwater stingrays (Potamotrygon motoro)

Animal Cognition, 2019
Serial reversal learning is considered a reliable approach for the testing of behavioral flexibility, and animals that inhabit fluctuating habitats and different environments are expected to possess behavioral and cognitive flexibility. The ocellate river stingray (Potamotrygon motoro) is one such species.
Martha M. M. Daniel, Vera Schluessel
openaire   +2 more sources

A hyaluronidase from Potamotrygon motoro (freshwater stingrays) venom: Isolation and characterization

Toxicon, 2008
Freshwater stingrays (Potamotrygon motoro) are known to cause human accidents through a sting located in its tail. In the State of Goiás, this accident happens especially during the fishing season of the Araguaia River. The P. motoro venom extracted from the sting presented hyaluronidase activity.
Marta R, Magalhães, Nelson Jorge, da Silva, Cirano J, Ulhoa   +2 more
openaire   +2 more sources