Periphytic algal flora of the low Doce river, Espírito Santo State, Brazil, after ore tailings flow, 1: smooth cell walled Cosmarium Corda (Zygnematophyceae, Desmidiaceae.

Fadul-Souza, Bruna; Souza, Karoline Barros de; Trancoso, Mateus Sardi; Zorzal-Almeida, Stéfano; Bicudo, Carlos Eduardo de Mattos; Ramos, Geraldo José Peixoto; Fernandes, Valéria de Oliveira

doi:10.1590/2236-8906-22-2022

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Special Article of Flora perifítica • Hoehnea 49 • 2022 • https://doi.org/10.1590/2236-8906-22-2022 copy

Periphytic algal flora of the low Doce river, Espírito Santo State, Brazil, after ore tailings flow, 1: smooth cell walled Cosmarium Corda (Zygnematophyceae, Desmidiaceae.

(Ficoflórula perifítica do Baixo Rio Doce, Estado do Espírito Santo, Brasil, após passagem de rejeitos de minério, 1: Cosmarium Corda de parede lisa (Zygnematophyceae, Desmidiaceae.

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Study aimed at identifying and recording smooth or finely punctate cell walled Cosmarium Corda species of the low Doce river region, Espírito Santo State, Brazil. Periphytic material was collected monthly during the period October 2018 to February 2020, except for October 2019. We identified 22 taxa and analyzed the environmental conditions (trophic state, pH and total iron) in which each taxon occurred. Our study recorded 21 new records of smooth cell walled Cosmarium for Espírito Santo State and one (Cosmarium trilobulatum var. tumidum Willi Krieger & Gerloff) for Brazil.

Keywords:
desmids; periphyton; taxonomy

Taxon	River			Lagoon		Lake			Frequency		Environmental condition
Taxon	Doce	Guandu	Areal	Areão	Monsarás	Limão	Nova	Juparanã	RF (%)	C	Trophic State	pH	Fe (mg L^-1)
Cosmarium abbreviatum Raciborski var. minus (West & G.S.West) Willi Krieger & Gerloff	x	x	x	x	x	x	x	x	21.4	LF	oli-hyp	ac-alk	0.2-3.7
Cosmarium angulosum Brébisson	---	---	---	---	x	---	---	---	0.4	R	oli	alk	2.7
Cosmarium baileyi Wolle	---	---	---	---	x	---	x	---	1.1	R	mes-hyp	neu-alk	0.2-0.7
Cosmarium clepsydra Nordstedt var. dissimile (Raciborski) Willi Krieger & Gerloff	---	---	---	---	---	x	---	---	0.4	R	oli-eu	alk	0.7
Cosmarium contractum Kirchner var. minutum (Delponte) Coesel	---	---	---	---	---	x	x	x	8.4	R	ult-eu	ac-alk	0.1-1.3
Cosmarium contractum Kirchner var. sparsipunctatum Kurt Förster ex Kurt Förster	---	---	---	---	---	x	x	---	0.8	R	ult-eu	neu	0.4-0.6
Cosmarium difficile Lütkemüller	---	---	x	---	x	x	---	---	4.6	R	oli-eu	neu-alk	0.2-3.0
Cosmarium galeritum Nordstedt var. subtumidum Borge	---	---	---	---	x	x	x	x	3.8	R	ult-eu	neu	0.1-2.7
Cosmarium granatum Brébisson ex Ralfs var. granatum	x	x	---	---	x	x	---	---	29.0	LF	ult-sup	ac-alk	0.2-7.1
Cosmarium impressulum Elfving	x	---	---	---	---	---	---	---	0.4	R	mes	alk	1.4
Cosmarium laeve Rabenhorst var. laeve	x	x	x	---	---	x	---	x	20.6	LF	ult-sup	neu-alk	0.2-4.3
Cosmarium lundellii Delponte var. madagascariense West & G.S. West	---	---	---	---	---	x	---	---	0.4	R	mes	alk	0.4
Cosmarium moniliforme (Turpin) Ralfs	---	---	---	---	x	---	---	---	0.8	R	oli-mes	alk	2.4-3.4
Cosmarium norimbergense Reinsch var. depressum (West & G.S.West) Willi Krieger & Gerloff	---	---	---	---	x	---	---	---	1.1	R	ult-oli	neu-alk	0.7-5.7
Cosmarium ocellatum Eichler & Gutwinski	---	---	---	---	---	x	---	---	1.5	R	mes	neu	0.9
Cosmarium pachydermum P.Lundell var. aethiopicum (West & G.S.West) West & G.S.West	x	---	---	---	---	x	x	---	0.4	R	ult-mes	alk	0.2-1.4
Cosmarium polygonum (Nägeli) W.Archer var. depressum Messikommer	---	---	---	x	---	---	---	---	1.5	R	mes	neu-alk	1.9-2.0
Cosmarium pseudoconnatum Nordstedt	x	---	---	---	x	x	x	x	10.3	LF	oli-sup	ac-alk	0.1-3.8
Cosmarium pseudopyramidatum P.Lundell	---	---	---	---	---	x	---	---	0.4	R	oli	alk	0.7
Cosmarium rectangulare Grunow var. hexagonum (Delponte) West & G.S.West	---	---	---	---	x	---	---	---	0.8	R	oli	alk	2.7-3.4
Cosmarium trilobulatum Reinsch var. abscissum (Schmidle) Willi Krieger & Gerloff	---	---	---	---	x	x	x	---	3.1	R	ult-sup	alk	0.2-2.7
Cosmarium trilobulatum Reinsch var. tumidum Willi Krieger & Gerloff	x	x	---	---	x	---	---	---	16.8	LF	oli-sup	neu-alk	0.8-3.7

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[1] ⁶Corresponding author: b.fadul.souza@gmail.com