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| ROMANO,LUIS ALBERTO; LÓPEZ,ANDREA I.H.; BUITRAGO,JUAN RAFAEL; PEDROSA,VIRGÍNIA F.. |
| Abstract: The skin of three juvenile Lepidosiren paradoxa specimens was examined. The epidermis was composed of a polystratified epithelium resting on a basement membrane, including mucus-secreting cells, and a cuticle of mucopolysaccharides on the surface. Two types of skin receptors, electroreceptors and mechanoreceptors, were found; the first type was located in the dermoepidermal junction, and the second type was completely intraepiderma. The skin structure of these fish, suggests the possibility of the skin participating in the breath. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electroreceptors; Lungfish; Mechanoreceptors; Paraná River basin; Pirambóia. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700864 |
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| SANTOS,JUAN J.S.; BERNARDES,JULIANA P.; RAMÍREZ,JUAN R.B.; RAMOS,CÁSSIO O.; GOMES,CARLOS HENRIQUE A. DE MIRANDA; ROMANO,LUIS ALBERTO. |
| Abstract The yellow clam Mesodesma mactroides (Reeve, 1854) is a sand mollusc with historical and socioeconomic importance in Brazil, Uruguay and Argentina. A guaranteed form to access a successful reestablishment of the species in their natural environment is directly linked to their reproduction biology. Then, our report introduces the embryonic and larval development of the yellow clam reared in laboratory for such purposes. M. mactroides broodstock were selected as specimens who possess a mean total shell length and weight of 66 ± 3.82 mm and 27.15 ± 4.07 g for an afterwards spawn induction through stripping technique. Regarding the embryonic development, newly fertilized oocytes exhibited a mean diameter of 51.20 ± 6.64 μm. The first polar corpuscle,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broodstock; D-veliger; M. mactroides; Pediveliger; Sand mollusk; Stripping. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000201009 |
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