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Estudos sobre o papel dos sedimentos de fundo no enriquecimento do plâncton

Estudos sobre o papel dos sedimentos de fundo no enriquecimento do plâncton

M. Lekeshmanaswamy

57,52 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Empresa y gestión
ISBN:
9786208152963
57,52 €
IVA incluido
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A variação sazonal da população de plâncton com análise de sedimentos numa lagoa de água doce em Coimbatore foi realizada durante 2010 a 2012. Foram identificadas nove espécies de algas na lagoa sulur. Entre elas, seis espécies pertenciam a bacillariophyceae, duas espécies pertenciam achlerophyceae e uma espécie pertencia a myxcophyceae. Todas estas espécies foram encontradas em estações onde a identificação era rara. Foram identificadas quatro espécies de crustáceos: Herpatacoid Sp., Diaptomus Sp., Naupliulervacyclops Sp e Daphnia. Foram registadas três espécies de insectos aquáticos, nomeadamente aytiscus Sp. No total, foram identificadas quatro espécies de moluscos, nomeadamente Indoplanorlirsexustus, Lamellidensmarginalis, Ballamyadissimilis, Mefania Scabra. Foram identificados Indoplanrlisexustus e Melaniascabra. Foram identificadas quatro espécies de peixes, nomeadamente puntiussarana (Hamilton), Catla catla (Hamilton), Cyprinuscarpio e labeo rohita (Hamilton). Na presente investigação, as caraterísticas sedimentares, como os nutrientes e os metais pesados, foram poluídas até aos limites desejáveis. O pH manteve-se alcalino durante todo o período de estudo. Devido à contaminação sedimentar, os níveis de nutrientes são também mais elevados.

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