distribuição de macrófitas aquáticas numa lagoa na fazenda nhumirim, nhecolândia, pantanal, ms
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ID: 243871
1989
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Abstract
A Nhecolândia, uma sub-região arenosa do Pantanal, possui muitas lagoas ("baías") rasas e subcirculares. Levantou-se, em outubro de 1988, através de duas transecções, a vegetação aquática de uma lagoa permanente, denominada "Baía da Sanguessuga", com 250m de diâm. e até 1,2m prof. (época seca), na fazenda Nhumirim (18º59'S e 56º39'W, e alt 90m). As plantas foram coletadas e depositadas nos Herbários CP AP e COR. São apresentadas lista de 37 plantas ocorrentes, suas formas biológicas, e gráficos de frequência das principais espécies. As espécies mais freqüentes são: Utricularia spp., Salvinia auriculata, Cabomba pyauhyensis, Hydrocieis nymphoides, Cyperus cf. polystachyos, Eleocharis spp., Pontederia cordata, Nymphaea amazonwn e Echinodorus spp. Observou-se zonação na distribuição das principais espécies, explicada pela relação entre profundidade e forma biológica das plantas.
Nhecolandia, a sandy sub-region of the Pantanal, has many shalow and subcircular lakes. In October 1988 two transects were established to survey the aquatic vegetation of a permanent pond, named "Baia da Sanguessuga", 250 m diameter and 1,2 m deep (dry season), at Nhumirim farm (18º59'S, 56º39'W, and 90 m alt.). Plants were colected and kept at CPAP and COR Herbaria. A list of 37 plants, their life forms and frequency graphs are presented. The most frequent species are: Utricularia spp., Salvinia auriculata, Cabomba pyauhyensis, Hydrocleis nymphoides, Cyperus cf. polystachyos, Eleocharis spp., Pontederia cordata, Nymphaea amazonum and Echinodorus spp. There is a relation between depth and life form, and a zonation on the distribution of the most important species.
Nhecolandia, a sandy sub-region of the Pantanal, has many shalow and subcircular lakes. In October 1988 two transects were established to survey the aquatic vegetation of a permanent pond, named "Baia da Sanguessuga", 250 m diameter and 1,2 m deep (dry season), at Nhumirim farm (18º59'S, 56º39'W, and 90 m alt.). Plants were colected and kept at CPAP and COR Herbaria. A list of 37 plants, their life forms and frequency graphs are presented. The most frequent species are: Utricularia spp., Salvinia auriculata, Cabomba pyauhyensis, Hydrocleis nymphoides, Cyperus cf. polystachyos, Eleocharis spp., Pontederia cordata, Nymphaea amazonum and Echinodorus spp. There is a relation between depth and life form, and a zonation on the distribution of the most important species.
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pott1989actadistribuio
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| Authors | ;Vali J Pott;Norma C Bueno;Rosana A. C Pereira;Suzana M. De Salis;Neuza L Vieira |
| Journal | monatshefte für chemie chemical monthly |
| Year | 1989 |
| DOI |
10.1590/S0102-33061989000300015
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