Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Новые сведения о ранних ювенильных стадиях Balanus improvisus (Cirripedia, Thoracica) IBSS Repository
Шалаева, Е. А..
Исследованы осевшие циприсовидные личинки и ранние ювенильные стадии усоногого рака Balanus improvisus, собранные в Черном море с различных субстратов. Впервые с помощью сканирующего электронного микроскопа выявлены морфологические особенности наружных ювенильных покровов, закладывающихся под карапаксом циприсовидной личинки. Ювенильная кутикула имеет сотовидную поверхность в области формирования табличек крышечки домика (скутума и тергума) в задней части личинки. Мантия выпячивается над задним (будущим апикальным) краем оперкулярных табличек. Остальная поверхность под карапаксом - складчатая. Вся поверхность кутикулы покрыта многочисленными тонкими волосками (длиной около 5 мкм). Отмечено несколько групп крупных волосков (50 – 150 мкм): между верхним...
Tipo: Journal Contribution Palavras-chave: SEM; Сканирующая электронная микроскопия; Cyprid; Циприсовидная личинка; Carapace; Карапакс циприсовидной личинки ‘honeycomb’ - сотовидные opercular plates (scutum and tergum) оперкулярные таблички (скутум и тергум) Carapace.
Ano: 2003 URL: http://repository.ibss.org.ua/dspace/handle/99011/541
Imagem não selecionada

Imprime registro no formato completo
Pivotal temperature and sexual dimorphism of Podocnemis expansa hatchlings (Testudines: Podocnemididae) from Bananal Island, Brazil Rev. Bras. Zool.
Lubiana,Adélio; Ferreira Júnior,Paulo Dias.
A common problem when trying to identify the sex of hatchling turtles is that juveniles are not obviously externally dimorphic and current techniques to identify sex are often invasive. In this paper, 300 eggs of Podocnemis expansa from Bananal Island, state of Tocantins (Brazil), were incubated at constant temperatures. The carapaces of the hatchlings were photographed and subjected to geometric morphometric analysis. The hatchlings were subsequently euthanized and had their gonads removed for sex determination. The pivotal temperature of P. expansa was 33.5ºC, confirming that this species has the highest pivotal temperature among reptiles. Geometric morphometric analysis of the shape of the carapace proved efficient in differentiating the sex of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carapace; Incubation; Morphometry; Sex ratio; Giant Amazon River turtle.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300016
Imagem não selecionada

Imprime registro no formato completo
Mercury and methylmercury in carapace of the marine turtle Caretta caretta, in northeastern Brazil and its potential for environmental monitoring Anais da ABC (AABC)
RODRIGUEZ,CÉSAR AUGUSTO B.; BEZERRA,MOISES F.; REZENDE,CARLOS EDUARDO DE; BASTOS,WANDERLEY R.; LACERDA,LUIZ D. DE.
Abstract: The present work tests the use of carapace fragments of the marine turtle Caretta caretta as a tool for environmental biomonitoring of mercury (Hg) and to evaluate the influence of biological and ecological factors in Hg concentrations. Samples of carapace fragments were obtained during the nesting season of 2012 and 2016 and were analyzed for their total-Hg and methyl-Hg concentrations and the isotopic composition of carbon and nitrogen (δ15N and δ13C). Seventy-six females were sampled, with an average size of 87.1 to 107 cm of curved carapace length (CCL). The results showed a wide variation in total Hg concentrations (3.3 – 1,672 ng g-1) and low concentrations of methyl-Hg, not showing any pattern of accumulation among the individuals. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caretta caretta; Mercury; Carapace; Methylmercury; Stable isotopes.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300402
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

Valid HTML 4.01 Transitional