Diatomoflórula Perifítica Do Rio Descoberto – DF E GO, Brasil, Naviculales (Bacillariophyceae): Diploneidineae E Sellaphorineae

Total Page:16

File Type:pdf, Size:1020Kb

Diatomoflórula Perifítica Do Rio Descoberto – DF E GO, Brasil, Naviculales (Bacillariophyceae): Diploneidineae E Sellaphorineae Acta bot. bras. 21(4): 767-776. 2007 Diatomoflórula Perifítica do rio Descoberto – DF e GO, Brasil, Naviculales (Bacillariophyceae): Diploneidineae e Sellaphorineae Simone Mogami Delgado1,2 e Maria das Graças Machado de Souza1 Recebido em 2/03/2005. Aceito em 5/02/2007 RESUMO – (Diatomoflórula Perifítica do rio Descoberto – DF e GO, Brasil, Naviculales (Bacillariophyceae)): Diploneidineae e Sellaphorineae). O presente estudo enfocou as diatomáceas perifíticas pertencentes às subordens Diploneidineae e Sellaphorineae de Naviculales (Bacillariophyceae) do rio Descoberto, Distrito Federal, Goiás. As coletas foram realizadas em junho e julho/2003 (período de seca) e janeiro e fevereiro/2004 (período de chuva), em cinco estações de amostragem. Foram identificados 16 táxons infragenéricos, uma espécie pertencente à ordem Diploneidineae e as demais à ordem Sellaphorineae. Foram registradas 14 citações pioneiras para o estado de Goiás e 15 citações pioneiras para o Distrito Federal. Palavras-chave: diatomáceas, rio Descoberto, taxonomia, Bacillariophyta, Naviculales ABSTRACT – (Periphytic diatom flora of the Descoberto River – Distrito Federal and Goiás State, Brazil, Naviculales (Bacillariophyceae): Diploneidineae and Sellaphorineae). The taxa of the suborders Diploneidineae and Sellaphorineae, Naviculales (Bacillariophyceae) are presented as part of a survey of diatoms in the Distrito Federal (DF), Brazil. Samples were collected at five different points along the Descoberto River, one of the main lotic ecosystems in the Distrito Federal during June-July/2003 (dry season) and January-February (rainy season). Sixteen species from both suborders were identified; 14 species were cited for the first time for Goiás state and 15 for the Distrito Federal. Key words: diatoms, Descoberto River, taxonomy, Bacillaryophyta, Naviculales Introdução (GO) e observaram 135 táxons, entre os quais 76, em nível específico e infra-específico, pertenciam às As diatomáceas constituem um grupo de diatomáceas. Um inventário da ficoflórula de Goiás importância ecológica e econômica (Van den Hoek elaborado por Campos et al. (1990) apresentou a et al. 1995; Stoermer et al. 1999); contudo, por ocorrência de 20 gêneros de diatomáceas. Na Lagoa apresentarem morfologia complexa, nomenclatura Santa em Itajá (GO), Contin & Oliveira (1993) própria, alto índice de polimorfismo e o acesso à realizaram um levantamento que registrou a ocorrência literatura especializada ser difícil, os estudos de 96 táxons de diatomáceas, identificadas em nível taxonômicos realizados no Brasil se concentram, específico e infra-específico, sendo apenas uma não principalmente, nas regiões sul e sudeste (Brassac & determinada em nível de espécie. Ludwig 2003). No estado de Goiás e Distrito Federal Da mesma forma o Distrito Federal (DF) apresenta há poucos trabalhos e isto de deve a escassez de poucos estudos taxonômicos da diatomoflórula. A especialistas e pesquisas na área. maioria dos estudos apresenta as Bacillariophyta Embora o Estado de Goiás não registre nenhuma identificadas apenas em nível genérico e, apesar de pesquisa na qual se discutam as questões taxonômicas haver um movimento crescente de registros de táxons das diatomáceas, podem-se citar vários estudos específicos e infra-específicos, são estudos de natureza florísticos em que foram identificados táxons de limnológica, sem qualquer informação taxonômica. Bacillariophyceae. Assim, para o DF, encontram-se apenas três trabalhos Macedo-Saidah et al. (1987) fizeram um estudo de cunho taxonômico: no trabalho de Souza & Moreira qualitativo e quantitativo do plâncton do rio Meia-Ponte Filho (1999a) foram tratados taxonomicamente as 1 Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Botânica, Campus Universitário Darcy Ribeiro, Asa Norte, C. Postal 04457, 70910-970 Brasília, DF, Brasil 2 Autor para correspondência: [email protected] 768 Delgado & Souza: Diatomoflórula Perifítica do rio Descoberto – DF e GO, Brasil, Naviculales... famílias Thalassiosiraceae e Eunotiaceae encontradas Federal (CODEPLAN 1984). A coleta de perifíton foi na Lagoa Bonita, sendo proposta uma nova realizada raspando-se substrato rochoso, no mínimo, combinação para o gênero Eunotia e apresentando três rochas e substratos vegetais na ausência de rochas uma chave dicotômica sobre os táxons encontrados. no local. Para a raspagem do material aderido aos No segundo trabalho, foram registrados para a Lagoa substratos foram utilizadas escovas de dente. O Bonita, os gêneros Navicula “sensu lato” e substrato, após ser raspado, foi lavado com água Pinnularia, totalizando 12 táxons (Souza & Moreira destilada e as amostras coletadas foram armazenadas Filho 1999b). Finalmente, o terceiro trabalho tratou da em frascos de vidro com capacidade para 150 mL, e proposição de quatro espécies novas para a ciência: fixadas no campo com formaldeído (4%). As amostras Brachysira staurophora Souza & Compère, Eunotia (Tab. 1) e lâminas permanentes foram depositadas na sennae Souza & Compère, Kobayasiella mirabilis coleção ficológica do Herbário da Universidade de Souza & Compère e Pinnularia sulcata Souza & Brasília (UB). A técnica para oxidação do material foi Compère (Souza & Compère 1999). a de Simonsen (1974), modificada por Moreira Filho Com o objetivo de ampliar os estudos taxonômicos & Valente-Moreira (1981). Para montagem das da diatomoflórula em sistemas lóticos do DF e Goiás, lâminas foi utilizado Naphrax (IR: 1,74) como meio de uma vez que há uma escassez de trabalhos nesses inclusão. Os táxons encontrados foram fotografados ecossistemas (Brassac & Ludwig 2005), realizou-se com uma máquina digital Sony Cyber-Shot, modelo um levantamento das espécies pertencentes às DSC - P10, resolução de 5.0 megapixels, acoplada ao subordens Sellaphorineae e Diploneidineae, ordem microscópio. O sistema de classificação utilizado para Naviculales na bacia do rio Descoberto. o enquadramento dos táxons analisados foi o de Round et al. (1990). Material e métodos Resultados e discussão O rio Descoberto é usado como fonte de abastecimento de 65% da população do DF, além de Diploneidineae D.G. Mann ser utilizado como ponto de lazer da comunidade. Ele Diploneidaceae D.G. Mann nasce à altura da cota de 1.300 m, sob as coordenadas Diploneis C.G. Ehrenberg ex Cleve de 15º37’S e 48°10’W, durante seu curso é represado formando a barragem do Descoberto, nas coordenadas Diploneis subovalis Cleve, Syn. Navic. Dist. Kong., de 15°47’S e 48°11’W (CODEPLAN 1984). Na p.96, pr.1, fig.7, 1894. direção sul, a montante da cidade de Santo Antônio do Fig. 1 Descoberto (GO), o rio Descoberto recebe o seu Valva elíptica; extremidades arredondadas, área principal afluente, o rio Melchior, que atravessa uma axial retilínea moderadamente larga; área central Área de Relevante Interesse Ecológico (ARIE) criada ovalada no sentido longitudinal; rafe incluída em uma com o intuito de preservar as nascentes dos córregos costela; costelas transapicais levemente radiadas; duas do Cortado e Taguatinga. No rio Melchior é lançado fileiras de aréolas entre as costelas, dispostas em esgoto doméstico e hospitalar das cidades de quincôncio. Comprimento: 19,4-35,2 µm. Largura: Taguatinga, Ceilândia e Samambaia, região de maior 6,4-16,0 µm. Estrias: 7-11/10 µm. densidade demográfica do DF. Além disso, nele localiza- Distribuição para o Estado de Goiás e DF: citação se a Estação de Tratamento de Esgoto de Samambaia pioneira para o Estado de Goiás e DF. (ETE-CAESB - Samambaia Norte). Material examinado: BRASIL. Distrito Federal: A análise da diatomoflórula foi realizada com base a jusante da barragem rio Descoberto, 23/VI/2003, em 17 amostras provenientes de cinco estações M.G.M. Souza (UB 1496); Goiás: a montante da distribuídas ao longo do rio Descoberto (Tabela 1). confluência do rio Melchior com o rio Descoberto, Foram realizadas quatro coletas mensais: dois meses 23/VI/2003, M.G.M. Souza (UB 1497); 7/VII/2003 de menores índices de pluviosidade (junho e julho/2003) (UB 1508). e dois meses de maiores índices pluviométricos (janeiro e fevereiro/2004), caracterizando respectivamente a Sellaphorineae D.G. Mann estação seca e chuvosa, típicas de clima tropical Sellaphoraceae Mereschokowsky chuvoso de savana (Köppen Aw e Caw) do Distrito Fallacia Stickle & D.G. Mann Acta bot. bras. 21(4): 767-776. 2007. 769 Tabela 1. Estações de coleta e amostras no rio Descoberto, DF e GO, Brasil. N° do Tombo Estação de coleta (N°) Coordenadas Substrato Período (UB) (seca ou chuva) 1489 01 – Córrego Barrocão, mais próximo a nascente. 15°37’51”S Epilítico Seca 49°10’37”W 1491 02 – a montante da barragem do rio Descoberto 15°42’30”S Epilítico Seca 48°14’01”W 1496 03 – a jusante da barragem do rio Descoberto 15°52’07”S Epilítico Seca 48°16’42”W 1497 04 – a montante da confluência do rio Melchior com 15°55’52”S Epilítico Seca o rio Descoberto (GO) 48°16’29”W 1498 05 – a jusante da confluência do rio Melchior com o 16°03’49”S Epifítico Seca rio Descoberto 48°16’39”W 1500 01 – Córrego Barrocão, mais próximo a nascente. 15°37’51”S Epilítico Seca 49°10’37”W 1502 02 – a montante da barragem do rio Descoberto 15°42’30”S Epilítico Seca 48°14’01”W 1507 03 – a jusante da barragem do rio Descoberto 15°52’07”S Epilítico Seca 48°16’42”W 1508 04 – a montante da confluência do rio Melchior com o 15°55’52”S Epilítico Seca rio Descoberto (GO) 48°16’29”W 1509 05 – a jusante da confluência do rio Melchior com o 16°03’49”S Epilítico Seca rio Descoberto 48°16’39”W 1617 01 – Córrego Barrocão, mais próxima a nascente. 15°37’51”S Epilítico Chuva 49°10’37”W 1619 02 – a montante da barragem do rio Descoberto 15°42’30”S Epilítico Chuva 48°14’01”W 1624 03 – a jusante da barragem do rio Descoberto 15°52’07”S Epilítico Chuva 48°16’42”W 1625 05 – a jusante da confluência do rio Melchior com o 16°03’49”S Epilítico Chuva rio Descoberto 48°16’39”W 1626 01 – Córrego Barrocão, mais próxima a nascente. 15°37’51”S Epilítico Chuva 49°10’37”W 1628 02 – a montante da barragem do rio Descoberto 15°42’30”S Epilítico Chuva 48°14’01”W 1633 03 – a jusante da barragem do rio Descoberto 15°52’07”S Epilítico Chuva 48°16’42”W Fallacia insociabilis (Krasske) D.G.
Recommended publications
  • In Streams from Three Conservation Units of Central Brazil: Pinnularia Ehrenberg1
    Hoehnea 44(4): 524-538, 3 tab., 44 fig., 2017 http://dx.doi.org/10.1590/2236-8906-107/2016 Periphytic diatoms (Bacillariophyta) in streams from three Conservation Units of central Brazil: Pinnularia Ehrenberg1 Alline Alves França2, Bárbara Dunck3,6, Liliana Rodrigues4, Bárbara Medeiros Fonseca5 and Sirlene Aparecida Felisberto2 Received: 12.12.2016; accepted: 9.07.2017 ABSTRACT - (Periphytic diatoms (Bacillariophyta) in streams from three Conservation Units of central Brazil: Pinnularia Ehrenberg). This study aimed to survey the genus Pinnularia Ehrenberg (Bacillariophyta) in five preserved streams located in three conservation units (Brasília National Park, Chapada dos Veadeiros National Park and Terra Ronca State Park). Periphyton was collected in different substrata during the dry and rainy seasons (years 2012 to 2013), totalizing 25 sample units. Altogether, 23 taxa were identified, beingP. subanglica, P. angustivalva and P. butantanum the most frequent. Pebble and sand were the richest substrates, with nine taxa each. Among the 23 taxa reported, 13 are cited for the first time for the central Brazil: P. angusta var. angusta, P. angustivalva, P. butantanum, P. divergens var. biconstricta, P. divergens var. mesoleptiformis, P. gibba var. subundulata, P. paulensis, P. persudetica var. persudetica, P. subgibba var. angustarea, P. subgibba var. capitada, P. superpaulensis, P. viridiformis var. minor and P. undula var. undula. Keywords: biodiversity, Cerrado, diatom, periphyton, pristine lotic systems RESUMO - (Diatomáceas perifíticas (Bacillariophyta) em riachos de três Unidades de Conservação do Brasil Central: Pinnularia Ehrenberg). Este estudo objetivou inventariar o gênero Pinnularia Ehrenberg (Bacillariophyta) em cinco riachos preservados localizados em três unidades de conservação (Parque Nacional de Brasília, Parque Nacional da Chapada dos Veadeiros e Parque Estadual de Terra Ronca).
    [Show full text]
  • Pinnularia Schoelynckiana, a New Limnoterrestrial
    Pinnularia schoelynckiana, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic Iles Kerguelen (southern Indian Ocean) Bart van de Vijver, Pieter Scholberg, Marc Lebouvier To cite this version: Bart van de Vijver, Pieter Scholberg, Marc Lebouvier. Pinnularia schoelynckiana, a new limnoterres- trial diatom species (Bacillariophyta) from the sub-Antarctic Iles Kerguelen (southern Indian Ocean). Botany Letters, Taylor & Francis, 2020, 167 (1), pp.42-49. 10.1080/23818107.2019.1675185. hal- 02391114 HAL Id: hal-02391114 https://hal-univ-rennes1.archives-ouvertes.fr/hal-02391114 Submitted on 17 Feb 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Pinnularia schoelynckiana, a new limnoterrestrial diatom species (Bacillariophyta) from the sub-Antarctic Iles Kerguelen (southern Indian Ocean) Bart Van de Vijver1,2, Pieter Scholberg1,2 and Marc Lebouvier3 1Meise Botanic Garden, Research Department, Nieuwelaan 38, B-1860 Meise, Belgium 2University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B-2610 Wilrijk, Belgium 3UMR 6553 Ecobio CNRS, Université de Rennes 1, Station Biologique, F-35380 Paimpont, France Abstract An unknown Pinnularia taxon was recorded during a survey of the limno-terrestrial diatom flora of some hot springs in the Val Travers area (Grand Terre, Iles Kerguelen, sub-Antarctic region).
    [Show full text]
  • Taxonomic Survey of Benthic Diatoms on Natural Substrata from Coastal Lagoon (Aegean Sea, Turkey)
    www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 12: 841-849 (2012) DOI: 10.4194/1303-2712-v12_4_12 Taxonomic Survey of Benthic Diatoms on Natural Substrata From Coastal Lagoon (Aegean Sea, Turkey) Fatma Çolak Sabancı1,* 1 Ege University, Fisheries Faculty, Department of Hydrobiology, 35100 Bornova, İzmir, Turkey. * Corresponding Author: Tel.: +90.232 3111010/5206; Fax: +90.232 3883685; Received 28 May 2012 E-mail: [email protected] Accepted 17 October 2012 Abstract The taxonomical composition of epilithic diatoms was investigated at intertidal zone of Homa lagoon, Aegean sea, Turkey. The stations are located in different littoral zones of the study area and they are different from each other in terms of hydrological respect. The samples contained a mixture of forms growing on the stones themselves, on silt accumulated on the stones and forms epiphytic on other algae, I will refer to this collective community as epilithon. Epilithic diatom species, which constitute the majority of the community were examined from obtained material. A total of 67 diatom taxa belonging to 34 genera were identified to the genus or species level. The species more frequently found in the samples were Cocconeis placentula, Cocconeis scutellum, Mastogloia pumila, Navicula cincta and Navicula crypyocephala var. veneta. Nine of the species identified during the research period seem to be previously unreported for Turkish coastal waters. Morphological characteristics of these species were given in detail information and original photographs. Keywords: Epilithic diatom, species identification, Homa lagoon, Aegean Sea, Eastern Mediterranean Sea. Kıyısal Lagündeki (Ege Denizi, Türkiye) Doğal Substratumda Bulunan Bentik Diyatomelerin Taksonomik Olarak İncelenmesi Özet Epilitik diyatomelerin tür kompozisyonu, Homa lagününün (Ege Denizi, Türkiye) kıyısal zonunda incelenmiştir.
    [Show full text]
  • Third NAWQA Diatom Taxonomy Harmonization Workshop
    Third NAWQA Diatom Taxonomy Harmonization Workshop Report No. 00-8 The Patrick Center for Environmental Research and Michigan State University held 1-3 May 2000 at The Academy of Natural Sciences 1900 Benjamin Franklin Parkway Philadelphia, PA 19103-1195 Prepared by Eduardo A. Morales and Marina Potapova June 1, 2000 INTRODUCTION The Third NAWQA Workshop on Harmonization of Algal Taxonomy was held at The Academy of Natural Sciences on 1-3 May 2000. Dr. R.J. Stevenson and Kalina Manoylova of Michigan State University; Dr. Donald F. Charles, Frank Acker, Todd A. Clason, Patrick Cotter, Candia Knowles, Kalina Manoylova, Lont Marr, Eduardo A. Morales, Marina Potapova, and Dr. Charles W. Reimer of The Academy of Natural Sciences’ Patrick Center for Environmental Research; and William R. Cody, a private consultant based in the State of Ohio, participated in the workshop. The primary purpose of the workshop was to develop and agree on nomenclature to use when analyzing NAWQA 1997-start algae samples, collected in 1999-2001. Other objectives are summarized in the attached list of Agenda items (Appendix 1). Results of discussion of these other items are reported in separate memos and are not included here. The U.S. Geological Survey’s National Water Quality Assessment (NAWQA) program concentrates on the study of nearly 60 major watersheds in the United States. Each of these watersheds is called a Study Unit (SU). Approximately 15 to 20 SUs are investigated at a time. To date, three sets of SUs, or "starts," have been collected: the 1991, 1994, and 1997-starts. Algal samples from each SU are collected over a three-year period, usually beginning after two years of planning and site selection.
    [Show full text]
  • Zoosporic Parasites Infecting Marine Diatoms E a Black Box That Needs to Be Opened
    fungal ecology xxx (2015) 1e18 available at www.sciencedirect.com ScienceDirect journal homepage: www.elsevier.com/locate/funeco Zoosporic parasites infecting marine diatoms e A black box that needs to be opened Bettina SCHOLZa,b, Laure GUILLOUc, Agostina V. MARANOd, Sigrid NEUHAUSERe, Brooke K. SULLIVANf, Ulf KARSTENg, € h i, Frithjof C. KUPPER , Frank H. GLEASON * aBioPol ehf., Einbuastig 2, 545 Skagastrond,€ Iceland bFaculty of Natural Resource Sciences, University of Akureyri, Borgir v. Nordurslod, IS 600 Akureyri, Iceland cSorbonne Universites, Universite Pierre et Marie Curie e Paris 6, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, CS90074, 29688 Roscoff cedex, France dInstituto de Botanica,^ Nucleo de Pesquisa em Micologia, Av. Miguel Stefano 3687, 04301-912, Sao~ Paulo, SP, Brazil eInstitute of Microbiology, University of Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria fDepartment of Biosciences, University of Melbourne, Parkville, VIC 3010, Australia gInstitute of Biological Sciences, Applied Ecology & Phycology, University of Rostock, Albert-Einstein-Strasse 3, 18059 Rostock, Germany hOceanlab, University of Aberdeen, Main Street, Newburgh AB41 6AA, Scotland, United Kingdom iSchool of Biological Sciences FO7, University of Sydney, Sydney, NSW 2006, Australia article info abstract Article history: Living organisms in aquatic ecosystems are almost constantly confronted by pathogens. Received 12 May 2015 Nevertheless, very little is known about diseases of marine diatoms, the main primary Revision received 2 September 2015 producers of the oceans. Only a few examples of marine diatoms infected by zoosporic Accepted 2 September 2015 parasites are published, yet these studies suggest that diseases may have significant Available online - impacts on the ecology of individual diatom hosts and the composition of communities at Corresponding editor: both the producer and consumer trophic levels of food webs.
    [Show full text]
  • New Epilithic Naviculales (Bacillariophyta) from Ivory Coast
    Journal of Survey in Fisheries Sciences 8(1) 1-23 2021 New epilithic Naviculales (Bacillariophyta) from Ivory Coast N’guessan Koffi R.1* ; Kouassi Blé Alexis T.2* ; Lozo N’guessan R.1 ; Niamien- Ebrottié Julie E.3 ; Coste M.4 ; Ouattara A.3; Kouamelan Essetchi P. 1 Received: March 2020 Accepted: January 2021 Abstract Epilithic diatom of the Ivory Coast is very poorly understood, aims of this study are: to document the epilithic diatom diversity from Naviculales. In this study, the epilithic diatoms in the samples collected from ten stations on the Me River between February and July 2012. A total of 56 Naviculales new taxa in 8 families were recorded. The taxonomic composition observed was dominated by Naviculaceae and Pinnulariaceae. Keywords: Diatoms, Epilithic, Flora, Naviculales, Ivory Coast 1-Laboratoire des Milieux Naturels et Conservation de la Biodiversité, UFR Biosciences, Université Félix-Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire. 2-UFR Sciences Biologiques, Université Peleforo Gon Coulibaly de Korhogo 3-Laboratoire d’Environnement et de Biologie Aquatique, UFR Sciences et Gestion de l’Environnement, Université Nangui Abrogoua, Abidjan, Côte d’Ivoire. Inrea 4-INRAE UR ETBX, 50 avenue du Verdun, F-33612 Cestas Cedex, France. *Corresponding author’s Email: [email protected] 2 N’guessan Koffi et al., New epilithic Naviculales (Bacillariophyta) from Ivory Coast Introduction (2015), Komoé et al. (2009) in the Aquatic ecosystems of fluvial types are lagoon complex of Grand-Lahou and characterized by the existence of an Seu-Anoï (2012), in the lagoon upstream-downstream gradient from the complexes (Aby, Ébrié and Grand- hydrological point of view or a spatial Lahou).
    [Show full text]
  • Phytoplankton in a Tropical Estuary, Northeast Brazil: Composition and Life Forms
    11 3 1633 the journal of biodiversity data April 2015 Check List NOTES ON GEOGRAPHIC DISTRIBUTION Check List 11(3): 1633, April 2015 doi: http://dx.doi.org/10.15560/11.3.1633 ISSN 1809-127X © 2015 Check List and Authors Phytoplankton in a tropical estuary, Northeast Brazil: composition and life forms Eveline P. Aquino*, Gislayne C. P. Borges, Marcos Honorato-da-Silva, José Z. O. Passavante and Maria G. G. S. Cunha Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, 123, Cidade Universitaria, Recife, Pernambuco, 50670-901, Brazil * Corresponding author. Email: [email protected] Abstract: We aimed verify the composition of the oscillations in the environmental, which can resuspend phytoplankton community and this life forms that or deposit cells on the bottom. The knowledge of occur in the Capibaribe River estuary, Pernambuco, composition and life forms of the biotic communities is Brazil. This is a highly impacted ecosystem by anthropic a necessary tool to understand the mechanism and the activities. We collected samples of the phytoplankton ecological importance of aquatic ecosystems (Eskinazi- community at three stations, during three months of Leça et al. 2004; Cloern and Jassby 2010). each season: dry, from October to December 2010; rainy, In this context, our study aimed to analyze the from May to July 2011. We collected samples during the composition of the phytoplankton community and the low and high tide, at the spring tide. We classified the main life forms of species occurring in the Capibaribe species based on life forms. We identified 127 taxa, and River estuary (Pernambuco), which is an important the majority of species were freshwater planktonic form aquatic body in Northeast Brazil.
    [Show full text]
  • Non-Blue Haslea Species (Bacillariophyceae: Naviculaceae) in the Benthic Marine Flora of Guam (Mariana Islands, Western Pacific Ocean)
    Diatom Research ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/tdia20 Non-blue Haslea species (Bacillariophyceae: Naviculaceae) in the benthic marine flora of Guam (Mariana Islands, Western Pacific Ocean). Christopher S. Lobban , Claire O. Perez & Matt P. Ashworth To cite this article: Christopher S. Lobban , Claire O. Perez & Matt P. Ashworth (2020) Non-blue Haslea species (Bacillariophyceae: Naviculaceae) in the benthic marine flora of Guam (Mariana Islands, Western Pacific Ocean)., Diatom Research, 35:2, 163-183, DOI: 10.1080/0269249X.2020.1761887 To link to this article: https://doi.org/10.1080/0269249X.2020.1761887 View supplementary material Published online: 16 Jun 2020. Submit your article to this journal Article views: 10 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=tdia20 Diatom Research, 2020 Vol. 35, No. 2, 163–183, https://doi.org/10.1080/0269249X.2020.1761887 Non-blue Haslea species (Bacillariophyceae: Naviculaceae) in the benthic marine flora of Guam (Mariana Islands, Western Pacific Ocean). CHRISTOPHER S. LOBBAN 1∗, CLAIRE O. PEREZ2 & MATT P. ASHWORTH3 1College of Natural & Applied Sciences, University of Guam, Mangilao, GU, USA 2LSAMP Program, College of Natural & Applied Sciences, University of Guam, Mangilao, GU, USA 3UTEX Culture Collection of Algae, Department of Molecular Biosciences, University of Texas, Austin, TX, USA In recent years the taxonomy of Haslea has been in flux. We describe several Haslea taxa from Guam, including four new species, in light of these recent findings. Four delicate, fusiform Haslea species are described from a variety of benthic habitats on coral reefs.
    [Show full text]
  • Diatoms from Small Ponds and Terrestrial Habitats in Deserta Grande Island (Madeira Archipelago)
    Biodiversity Data Journal 9: e59898 doi: 10.3897/BDJ.9.e59898 Data Paper Diatoms from small ponds and terrestrial habitats in Deserta Grande Island (Madeira Archipelago) Vítor Gonçalves‡,§, Catarina Ritter §, Helena Marques§,‡, Dinarte Nuno Teixeira|,¶,#, Pedro M. Raposeiro§,‡ ‡ Faculty of Sciences and Technology, University of the Azores, Ponta Delgada, Portugal § CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO Associate Laboratory - Azores, Ponta Delgada, Portugal | Instituto das Florestas e Conservação da Natureza IP-RAM, Jardim Botânico da Madeira – Eng. Rui Vieira, Caminho do Meio, Bom Sucesso, Funchal, Portugal ¶ Centre for Ecology, Evolution and Environmental Changes, Faculty of Sciences (CE3C), University of Lisbon, Edf. C2, Campo Grande, Lisboa, Portugal # Laboratory for Integrative Biodiversity Research (LIBRe), Finnish Museum of Natural History, University of Helsinki, Pohjoinen Rautatiekatu, Helsinki, Finland Corresponding author: Vítor Gonçalves ([email protected]), Pedro M. Raposeiro ([email protected]) Academic editor: Anne Thessen Received: 21 Oct 2020 | Accepted: 06 Jan 2021 | Published: 12 Feb 2021 Citation: Gonçalves V, Ritter C, Marques H, Teixeira DN, Raposeiro PM (2021) Diatoms from small ponds and terrestrial habitats in Deserta Grande Island (Madeira Archipelago). Biodiversity Data Journal 9: e59898. https://doi.org/10.3897/BDJ.9.e59898 Abstract Background Freshwater diversity, and diatoms in particular, from Desertas Islands (Madeira Archipelago, Portugal) is poorly known, although the Islands are protected and became a Natural Reserve in 1995. During two field expeditions in 2013 and 2014 to Deserta Grande Island, several freshwater and terrestrial habitats were sampled. The analysis of these samples aims to contribute to the biodiversity assessment of the freshwater biota present in Deserta Grande Island.
    [Show full text]
  • Benthic Marine Diatom Flora of Guam: New Records, Redescription of Psammodictyon Pustulatum N
    Micronesica 2015-02: 1–49 Benthic marine diatom flora of Guam: new records, redescription of Psammodictyon pustulatum n. comb., n. stat., and three new species (Colliculoamphora 1 gabgabensis, Lauderia excentrica, and Rhoiconeis pagoensis) CHRISTOPHER S. LOBBAN Division of Natural Sciences, University of Guam, Mangilao, GU 83823, USA e-mail: [email protected] Abstract—Twenty-eight new records and three new species are documented for the Guam flora, extending the records and checklist published in Micronesica 43: 237–479. Of note among the new records are Pinnunavis yarrensis (Grunow) H. Okuno and Nitzschia janischii Grunow both observed alive, plus Protokeelia cholnokyi (Giffen) Round & Basson and Pogoneis bahrainii Round & Basson seen only in acid-cleaned preparations. Psammodictyon pustulatum (Voigt ex Meister) n. comb., n. stat. (Bacillariales: Bacillariaceae) differs from related species in having a pair of rounded elevations on the distal side of the sternum. Three new species are described; only one was observed alive. Colliculoamphora gabgabensis (Eunotiales: Eunotiaceae) is smaller and more finely striated than its congeners. Lauderia excentrica (Thalassiosirales: Lauderiaceae) differs from the only other species of the genus in having a large, excentric, reniform annulus. Rhoiconeis pagoensis (Naviculales: Naviculaceae) differs from the other two known species in its stria density. Key words: biodiversity, coral reefs, farmer-fish territories, benthic marine diatoms Abbreviations: DIC: differential interference contrast, LM: light microscopy, RV: raphe valve, SEM: scanning electron microscopy, SV: sternum valve. Introduction Although tropical marine benthic diatom floras remain poorly known for the most part (Lobban & Jordan 2010, Riaux-Gobin et al. 2011), our work on the Western Pacific Diatoms Project (Jordan et al.
    [Show full text]
  • University of Nevada, Reno Paleolimnology and Paleontology
    1 University of Nevada, Reno Paleolimnology and Paleontology of the Miocene Quincy Diatomite Deposit A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Geology By Anthony Joseph Menicucci Dr. Paula J. Noble / Thesis Advisor August 2010 THE GRADUATE SCHOOL We recommend that the thesis prepared under our supervision by ANTHONY JOSEPH MENICUCCI entitled Paleolimnology and Paleontology of the Miocene Quincy Diatomite Deposit be accepted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Dr. Paula J Noble, Advisor Dr. Alan Wallace, Committee Member Dr. Mary Peacock, Graduate School Representative Marsha H. Read, Ph. D., Associate Dean, Graduate School i Abstract The Quincy Diatomite deposit, central Washington, USA, is a middle Miocene (~15 Ma) freshwater lacustrine deposit located between flows of the Columbia River Basalt Group. Three localities along the western margin of the deposit are examined and the diatom flora are described at the species level, with 84 species recognized. Of these species, one is new, Fragilariforma intortus, and one is elevated in rank to the species level, Tetracyclus williamsensii. One species, Pseudostaurosira brevistriata var. subcapitata, is also is transferred to a new genus for taxonomic clarification. Although rare, three species of the genus Sellaphora occur in the Quincy diatomite deposit, making this occurrence the oldest for the genus in the fossil record. The northwestern United States endemic fossil species Ellerbeckia baileyi is also observed in the deposit, and is abundant in particular stratigraphic intervals. Stratigraphic and geographic variation within the deposit is also examined. The three lithologic units recognized in the deposit, the Four Crude, Bottom Crude, and Top Crude, are distinguished by subtle lithologic differences and contain distinct diatom floras.
    [Show full text]
  • Diatoms of Acadia National Park, Maine, USA, with a Detailed Account on Taxonomy and Morphology of Several Remarkable Species
    School of Doctoral Studies in Biological Sciences University of South Bohemia in České Budějovice Faculty of Science Diatoms of Acadia National Park, Maine, USA, with a detailed account on taxonomy and morphology of several remarkable species Ph.D. Thesis RNDr. Jana Veselá, M.S. Supervisor: doc. RNDr. Jan Kaštovský, Ph.D. 1 Specialist adviser: prof. Jeffrey R. Johansen 1, 2 1Department of Botany, Faculty of Science, University of South Bohemia in České Budějovice 2Department of Biology, John Carroll University, Ohio, USA České Budějovice 2014 This thesis should be cited as: Veselá, J., 2014. Diatoms of Acadia National Park, Maine, USA, with a detailed account on taxonomy and morphology of several remarkable species. Ph.D. Thesis Series, No. 7. University of South Bohemia, Faculty of Science, School of Doctoral Studies in Biological Sciences, České Budějovice, Czech Republic, 171 pp. Annotation This thesis was focused on studying diatoms (Bacillariophyceae) from Acadia National Park, Maine, USA. First, the park is introduced and the preliminary study of freshwater algae, including diatoms, is presented. Extraordinary species richness of algae was discovered, especially in the group of diatoms, which is documented by a complete list of 674 diatom taxa in 92 genera encountered in the freshwater and brackish habitats within the park. Of those a considerable number of species unfortunately remained unidentified, as they did not conform to any described taxon in the available scientific literature. Therefore, several of those unnamed taxa were studied in close detail using light and scanning electron microscopes, exhaustive literature and herbaria search, and yielded description of three new species from genus Eunotia , and rediscovery of two rare and almost forgotten Surirella species.
    [Show full text]