J 2016

Freshwater mineral nitrogen and essential elements in autotrophs in James Ross Island, West Antarctica

COUFALÍK, Pavel, Petra PROCHAZKOVÁ, Ondřej ZVĚŘINA, Kateřina TRNKOVÁ, Kateřina SKÁCELOVÁ et. al.

Basic information

Original name

Freshwater mineral nitrogen and essential elements in autotrophs in James Ross Island, West Antarctica

Authors

COUFALÍK, Pavel (203 Czech Republic, guarantor, belonging to the institution), Petra PROCHAZKOVÁ (203 Czech Republic, belonging to the institution), Ondřej ZVĚŘINA (203 Czech Republic, belonging to the institution), Kateřina TRNKOVÁ (203 Czech Republic, belonging to the institution), Kateřina SKÁCELOVÁ (203 Czech Republic, belonging to the institution), Daniel NÝVLT (203 Czech Republic, belonging to the institution) and Josef KOMÁREK (203 Czech Republic, belonging to the institution)

Edition

Polish Polar Research, Warszawa, Państwowe Wydawnictwo Naukowe, 2016, 0138-0338

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.636

RIV identification code

RIV/00216224:14310/16:00092206

Organization unit

Faculty of Science

UT WoS

000390412400003

Keywords in English

Antarctica; cyanobacteria; algae; nutrients

Tags

Tags

International impact, Reviewed
Změněno: 13/3/2018 13:33, doc. Mgr. Daniel Nývlt, Ph.D.

Abstract

V originále

The lakes and watercourses are habitats for various communities of cyanobacteria and algae, which are among the few primary producers in Antarctica. The amount of nutrients in the mineral-poor Antarctic environment is a limiting factor for the growth of freshwater autotrophs in most cases. In this study, the main aim was to assess the availability of mineral nitrogen for microorganisms in cyanobacterial mats in James Ross Island. The nitrate and ammonium ions in water environment were determined as well as the contents of major elements (C, N, P, S, Na, K, Ca, Mg, Al, Fe, Mn) in cyanobacterial mats. The molar ratios of C:N, C:P and N:P in mats were in focus. The growth of freshwater autotrophs seems not to be limited by the level of nitrogen, according to the content of available mineral nitrogen in water and the biogeochemical stoichiometry of C:N:P. The source of nutrients in the Ulu Peninsula is not obvious. The nitrogen fixation could enhance the nitrogen content in mats, which was observed in some samples containing the Nostoc sp.

Links

LM2010009, research and development project
Name: Projekt CzechPolar - České polární stanice: Stavba a operační náklady
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1008/2013, interní kód MU
Name: Studium interakce laserového záření a plazmatu s materiály a jejich chemická analýza hmotnostní a optickou atomovou spektrometrií (Acronym: LAS)
Investor: Masaryk University, Category A