Os Sentinelas do Wamié

Os Sentinelas do Wamié

Gideon Ajeagah Aghaindum / Samuel Foto Menbohan / Thérèse Inès Bisse Ndiva

72,08 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Biologia, ciencias de la vida
ISBN:
9786630202403
72,08 €
IVA incluido
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Foi realizado, entre maio e outubro de 2020, um estudo com o objetivo de determinar a composição da população de macroinvertebrados bentónicos do rio Wamie, em Kribi, na região do Sul dos Camarões, com vista a avaliar o seu estado de saúde ecológica. As amostragens foram realizadas com periodicidade mensal. As variáveis físico-químicas foram analisadas de acordo com as recomendações da APHA e de Rodier. A amostragem dos macroinvertebrados bentónicos foi efetuada de acordo com a abordagem multihabitat. Os resultados das análises hidrológicas indicam que a inclinação e a velocidade das águas variam de uma estação para outra e que a largura do leito aumenta de montante para jusante. As análises físico-químicas revelam uma muito boa oxigenação das águas, uma ligeira acidez (6,12 ± 0,19 UC) e uma temperatura com variação muito reduzida de mês para mês (26,69 ± 0,35 °C). Estas águas são igualmente pobres em matérias orgânicas oxidáveis e em compostos azotados. Os valores muito baixos do índice de poluição orgânica (IPO) registados atestam a fraca antropização do meio, demonstrando assim que as águas do curso de água Wamie estão pouco perturbadas e, por conseguinte, apresentam uma qualidade ecológica bastante boa.

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