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首页> 外文期刊>Iheringia. Série Zoologia >Varia??o da composi??o e abundancia das espécies da Classe Appendicularia e seu uso como potenciais bioindicadoras de regi?es e massas de água superficiais na área da Bacia de Campos, Rio de Janeiro, Brasil
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Varia??o da composi??o e abundancia das espécies da Classe Appendicularia e seu uso como potenciais bioindicadoras de regi?es e massas de água superficiais na área da Bacia de Campos, Rio de Janeiro, Brasil

机译:在巴西里约热内卢(Rio de Janeiro),巴西坎波斯盆地地区的生物indicater潜力和浅表水群体的组成和丰富的变异及其用途。

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Studies about the relationship of the species of appendicularians with spatial gradients and water masses are rare, especially in the South Atlantic. The present study aims to fill the knowledge gap about the abundance of the community of appendicularians and on their bioindicator function in different regions (continental shelf and slope), with influence of different water masses in the South Atlantic. Sampling was conducted in the rainy season (February-April 2009) and the dry season (August-September 2009) in the subsurface layer. The water masses found on the continental shelf of the study area were the Tropical Water (AT), which was prevalent during the rainy season, and the Coastal Water (AC), which was prevalent in the dry season. In both sampling periods has not registered the presence of SACW on the surface over continental shelf. The appendicularians were more abundant in the region of the continental shelf influenced by the CW. A total of 18 species of appendicularian was registered. Oikopleura longicauda Vogt, 1854 and O. fusiformis Fol, 1872 were the most abundant appendicularian. Oikopleura dioica Fol, 1872 was found exclusively in the continental shelf on the CW. In despite of the SACW water had not registered on the surface, the presence of, high values of density of appendicularians in front of Cabo Frio region suggest the influence of an upwelling event in a anterior period in the region. In relation to the appendicularians abundance, high values were also observed in front of the Paraíba do Sul river with the CW influence. This fact suggests a high nutritional contribution of this river in the coastal marine area adjacent. The spatial variation and different water masses influenced the abundance and the composition of appendicularians. Among the species identified, only O. longicauda was considered as a bioindicator of the CW.
机译:关于具有空间梯度和水群体的阑尾人类的关系的研究很少见,特别是在南大西洋。目前的研究旨在填补关于附录社区的丰富的知识差距以及在不同地区(欧式架子和坡度)中的生物indicator功能,在南大西洋的不同水群体影响。抽样在雨季(2009年2月至2009年4月)和旱季(2009年8月至9月)在地下层进行。在研究区域的大陆架上发现的水群是热带水(AT),在雨季期间普遍存在,沿海水(AC),在旱季普遍存在。在两个采样期间,尚未在大陆架上注册了表面上的SacW。该阑尾师在受CW影响的大陆架的地区更加丰富。共登记了18种阑尾。 Oikopleura Longicauda Vogt,1854和O.Fusiformis fol,1872年是最丰富的阑尾。 Oikopleura dioica fol,1872年专门发现在CW的大陆架上。尽管在地面上没有登记了SacW水,但Cabo Frio Region前面的阑尾仪密度高度值表明了升高事件在该区域的前期的影响。在与阑尾的人有丰富的情况下,在ParaíbaDo Sul River的情况下也观察到高值,CW影响。这一事实表明这条河流在邻近的沿海海域的高营养贡献。空间变异和不同的水肿块影响了丰富和阑尾的组成。在鉴定的物种中,只有O. longicauda被认为是CW的生物indicator。

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