Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados 83 (2) 52 (1) Autor Marques,Simone (3) Bowen,Mark D. (1) Ferreira,Beatrice Padovani (1) Godinho,Hugo P. (1) Godinho,Hugo Pereira (1) Silva,Luiz G. M. (1) Vono,Volney (1) Mais... Palavra-chave Cool storage of sperm (1) Fish ladder (1) Juvenile sex change (1) Neotropical fishes (1) On-site human counts (1) Protogynous hermaphrodite (1) Reproduction (1) Semen (1) Sperm motility (1) Video image counts (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2011 (1) 2006 (1) 2004 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Short-term cold storage of sperm from six neotropical characiformes fishes 52 Marques,Simone; Godinho,Hugo Pereira. Sperm of the following Neotropical Characiformes fish species were tested for cold storage: Brycon lundii, Piaractus mesopotamicus, Leporinus elongatus, Leporinus friderici, Prochilodus lineatus and Prochilodus marggravii. Each sperm sample was split into two aliquots. The first was placed into a plastic bag with air or oxygen and the second, in a plastic tube with air. The samples were maintained at temperatures between 1.7-4.9 ºC. The rate of sperm motility was estimated using a 50 mM NaCl solution as the activating solution. The shortest sperm storage duration (7 h) was recorded for L. friderici, when the sperm motility rate reached ~ 30%, whereas the longest duration (20 h) was obtained with the sperm of P. lineatus. A fertilisation test using... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cool storage of sperm; Sperm motility; Semen; Neotropical fishes. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500016 Sexual development and reproductive pattern of the Mutton hamlet, Alphestes afer (Teleostei: Epinephelidae): a dyandric, hermaphroditic reef fish 83 Marques,Simone; Ferreira,Beatrice Padovani. There is little knowledge on the reproduction of the genus Alphestes. The reproduction of the Mutton hamlet, Alphestes afer, sampled in Pernambuco reefs (Brazil) was studied based on macroscopic analysis during reproductive period and histological analysis of gonad material from March 2008 to October 2009. This study showed that A. afer is a diandric, protogynous hermaphrodite. Sex change followed protogynous mode in two pathways: primary males formed from immature female individuals or secondary males formed from resting, ripe or spent female individuals. The numerical distribution of gonad classes by size indicated that females from 11-18 cm L T were immature while females from 16-25 cm L T and males from 12-22 cm L T were in various stages of gonadal... Tipo: Info:eu-repo/semantics/article Palavras-chave: Juvenile sex change; Protogynous hermaphrodite; Reproduction. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300008 Comparing on site human and video counts at Igarapava fish ladder, south eastern Brazil 83 Bowen,Mark D.; Marques,Simone; Silva,Luiz G. M.; Vono,Volney; Godinho,Hugo P.. On site human observations and video images were collected and compared at the window of the Igarapava Dam fish ladder (IDFL), rio Grande , Southeastern Brazil, between March 1st and June 30th, 2004. We conducted four experiments with two humans (Observer 1 and Observer 2) observing fish passage in the IDFL window while a Sony 3CCD video camera (Observer 3) recorded fish passage at the same time. Experiments, each one hour in length, were distributed throughout the diel cycle using full spectrum lights. We identified fish species, the number of individuals for each species, and the real time that they passed. Counts from each human observer were compared to the video counts. The fish species most commonly observed in the window were - curimba (Prochilodus... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish ladder; On-site human counts; Video image counts. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200017 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco