Geographic distribution of epilithic diatoms (Bacillariophyceae) in Antarctic lakes, South Shetland Islands, Maritime Antarctica Region

Organisms adapt to the environment by establishing themselves in suitable locations. Adaptation to the harsh Antarctic environment is no different. In this work the communities of epilithic diatoms in ice-free areas of water systems of five Antarctic islands are studied. The samples were oxidized, a...

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Bibliographic Details
Published in:Check List
Main Authors: Ferreira da Silva, Juliana, Oliveira, Maria Angélica, Paidano Alves, Rodrigo, Vestena Cassol, Ana Paula, Ribeiro da Anunciação, Raylane, Pereira da Silva, Eduardo, Schünemann, Adriano Luis, Batista Pereira, Antônio
Format: Article in Journal/Newspaper
Language:unknown
Published: Pensoft Publishers 2019
Subjects:
Aquatic systems
biogeography
conservation
environment
microalgae
Antarctic
South Shetland Islands
Deception Island
Antarc*
Antarctica
Online Access:https://zenodo.org/record/3463743
https://doi.org/10.15560/15.5.797
Description
Summary:Organisms adapt to the environment by establishing themselves in suitable locations. Adaptation to the harsh Antarctic environment is no different. In this work the communities of epilithic diatoms in ice-free areas of water systems of five Antarctic islands are studied. The samples were oxidized, and permanent sheets were later prepared for analysis of the material. They were examined using an optical microscope and mounted on stubs for identification of the taxon in an electron microscope. Fifty-nine species distributed in 28 genera were collected. Only four species were observed in all study areas. Deception Island had unique species in comparison with those on other islands. Knowing the diatom community is a first step in understanding the systems that they inhabit. The polar environment is challenging due to the difficulty of sampling and low diversity and abundance.

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