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New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi
(Wiley Blackwell Publishing, Inc, 2019-03)
This study aims to analyze the functional anatomy of the male reproductive system in Neocaridina davidi, a very popular ornamental species of caridean shrimp. Mature males were cold-anaesthetized and their reproductive ...
Evaluation of Alternative Life History Hypotheses for the Sand Shrimp Crangon Franciscorum (Decapoda: Caridea)
(Crustacean Society, 2006-01)
Caridean shrimps are unique among decapod crustaceans in showing a great diversity of sexual systems, including gonochorism, protandry, protandry with primary females and simultaneous hermaphroditism. Crangon franciscorum ...
Morphological and functional study of the male reproductive tract in the shrimp pleoticus muelleri bate (decapoda, penaeoidea)
(Taylor & Francis, 2010-12)
Anatomical relationships and the histological structure of the male reproductive tract in Pleoticus muelleri were described by using light microscopy. The male reproductive tract consists of paired organs: testes and vasa ...
Descriptions of two new freshwater Neotropical species of Rhinebothrium (Cestoda: Rhinebothriidea) from Potamotrygon motoro (Chondrichthyes: Potamotrygonidae)
(Folia Parasitologica, 2011-06)
Two new species of Rhinebothrium (Cestoda, Rhinebothriidea) from potamotrygonid stingrays in the Neotropical region are herein described, which raises the total number of Rhinebothrium species known from Neotropical ...
Effects of androgenic gland ablation on growth and reproductive parameters of Cherax quadricarinatus males (Parastacidae, Decapoda)
(Academic Press Inc Elsevier Science, 2011-08)
This work investigates the effects of androgenic gland (AG) ablation on the structure of the reproductive system, development of secondary sexual characters and somatic growth in Cherax quadricarinatus males. The AG ablation, ...
Combined methods to detect pollution effects on shell shape and structure in Neogastropods
(Elsevier Science, 2011-03)
Tributyltin (TBT) has been widely used as antifouling in marine environments, producing imposex in gastropod females (i.e. neoformation of a vas deferens and/orapenis) and shell malformation sinbivalves. However, effects ...
Solaropsis brasiliana, anatomy, range extension and its phylogenetic position within pleurodontidae (Mollusca, gastropoda, stylommatophora)
(Academia Brasileira de Ciencias, 2018-07)
A detailed anatomical revision on Solaropsis brasiliana (Deshayes 1832) has been carried out. New characters on shell, anatomy of soft parts, and a review of the genus distribution in South America, as well as clarification ...
Unique cyclophosphamide doses in male mice decrease the spermatic quality and germinal epitheliumDosis única de ciclofosfamida disminuye la calidad espermática y el epitelio germinal masculino en ratones
(Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, 2012)