Diatom Research最新文献_第9页

Both hydrology and physicochemistry influence diatom morphometry 水文学和物理化学都影响硅藻形态计量学

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-10-01 DOI: 10.1080/0269249x.2020.1828175

Andrea M. Burfeid-Castellanos, M. Kloster, J. Cambra, B. Beszteri

{"title":"Both hydrology and physicochemistry influence diatom morphometry","authors":"Andrea M. Burfeid-Castellanos, M. Kloster, J. Cambra, B. Beszteri","doi":"10.1080/0269249x.2020.1828175","DOIUrl":"https://doi.org/10.1080/0269249x.2020.1828175","url":null,"abstract":"It has been shown that size of planktonic diatoms responds to changes in water chemistry, but little is known about the influence of different types of environmental factors upon benthic diatom size variation. Here we ask whether water chemistry or hydromorphological influences show a stronger effect on benthic diatom morphometry. 10,624 diatom valves / frustules were imaged, identified and measured from 48 samples across eight sites in the Ebro river basin obtained during ten years of biomonitoring work. We analysed how differences in surface-to-volume (S/V) ratio and other morphometric characteristics were related to spatial and temporal variability in environmental parameters. Our results show that both hydrological and physicochemical variables generated significant responses in interspecific and intraspecific morphometric variation. S/V ratio and transapical width showed the strongest responses, followed by (the predominantly used) cell volume. Freshwater benthic diatom morphology seems to respond to diverse environmental factors and could provide complementary ecological information to community composition.","PeriodicalId":11199,"journal":{"name":"Diatom Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0269249x.2020.1828175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46167354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Three new Luticola species from the Andean-Amazonian transition in Colombia: taxonomy, morphology and preliminary considerations of the biogeography of the genus 哥伦比亚安第斯-亚马逊过渡时期的三种卢提科拉新种:分类、形态和对该属生物地理学的初步考虑

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-10-01 DOI: 10.1080/0269249x.2020.1813205

J. Simonato, J. Kociolek, Silvia E. Sala, Yasmin Plata Díaz, M. Núñez-Avellaneda

{"title":"Three new Luticola species from the Andean-Amazonian transition in Colombia: taxonomy, morphology and preliminary considerations of the biogeography of the genus","authors":"J. Simonato, J. Kociolek, Silvia E. Sala, Yasmin Plata Díaz, M. Núñez-Avellaneda","doi":"10.1080/0269249x.2020.1813205","DOIUrl":"https://doi.org/10.1080/0269249x.2020.1813205","url":null,"abstract":"ABSTRACT Three new species of Luticola are described from lotic ecosystems in Andakí Municipal Natural Park, located in the Andean-Amazon region on the eastern flank of the eastern Andes mountain range in Colombia. Size and morphological features of the three new species, L. caquetensis Kociolek, Simonato & Núñez-Avellaneda sp. nov., L. andakiesiorum Simonato, Kociolek & Plata Díaz sp. nov., and L. sinchii Sala, Kociolek & Simonato sp. nov. are provided, based on light and scanning electron microscopical observations, and compared with similar congeners. Species of the genus are organized into groups depending upon whether they possess or lack marginal channels and/or pseudosepta. All the new species possess pseudosepta and L. caquetensis and L. andakiesiorum lack marginal channels. The two latter species share this combination of features with Luticola affinis Levkov et al., a species described from Brazil. These species thus form a unique group within the genus, offering additional evidence for the unique biodiversity found in this region.","PeriodicalId":11199,"journal":{"name":"Diatom Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0269249x.2020.1813205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46336148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

New and interesting diatoms from Tibet. II. Description of two new species of monoraphid diatoms 来自西藏的新的有趣的硅藻。二、两新种广场形硅藻的记述

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-10-01 DOI: 10.1080/0269249x.2020.1810781

QI Liu, Yandan Xiang, P. Yu, S. Xie, J. Kociolek

{"title":"New and interesting diatoms from Tibet. II. Description of two new species of monoraphid diatoms","authors":"QI Liu, Yandan Xiang, P. Yu, S. Xie, J. Kociolek","doi":"10.1080/0269249x.2020.1810781","DOIUrl":"https://doi.org/10.1080/0269249x.2020.1810781","url":null,"abstract":"Light (LM) and scanning electron microscopy (SEM) observations were used to describe two new species of the freshwater monoraphid genus Crenotia Wojtal. Both species, Crenotia distincta, sp. nov. and Crenotia oblonga, sp. nov. have a unique stria structure, bi- to multiseriate terminating near the axial area. Internally, these terminal areolae have C-shaped openings that are occluded by a tapering flap, a feature unique to Crenotia species in China. The two species are easily distinguished from each other and from other members of the genus in both LM (size and valve outline) and SEM stria structure. The bi- to multiseriate nature of the striae suggests an affinity of this genus with Planothidium, but further phylogenetic analyses are required before the phylogenetic position of this genus is settled. Verified records of Crenotia are currently known from Europe and Asia, although species included in the genus by Wojtal have also been reported from North Africa and North America. The genus was originally described from springs but seems to have a wider ecological distribution.","PeriodicalId":11199,"journal":{"name":"Diatom Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0269249x.2020.1810781","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46415317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diversity and distribution of nanoplanktonic Minidiscus (Bacillariophyta) in shelf waters of the Southwest Atlantic Ocean 西南大西洋陆架水域纳米浮游小盘藻(硅藻纲)的多样性和分布

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-10-01 DOI: 10.1080/0269249x.2020.1845807

L. F. Fernandes, Felipe Correr-Da-Silva

引用次数: 1

Four new species from the diatom genus Kobayasiella Lange-Bertalot from waterbodies of Southeast Asia 标题东南亚水体中小叶硅藻属四新种

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-10-01 DOI: 10.1080/0269249x.2020.1842252

A. Glushchenko, J. Kociolek, I. Kuznetsova, M. Kulikovskiy

引用次数: 1

Entomoneis annagodhei sp. nov., a new marine diatom (Entomoneidaceae, Bacillariophyta) from the west coast of Sweden 产自瑞典西海岸的一种新的海洋硅藻(硅藻科，硅藻门)

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-07-02 DOI: 10.1080/0269249x.2020.1787229

Adil Y. AL-HANDAL, Maja Mucko, A. Wulff

{"title":"Entomoneis annagodhei sp. nov., a new marine diatom (Entomoneidaceae, Bacillariophyta) from the west coast of Sweden","authors":"Adil Y. AL-HANDAL, Maja Mucko, A. Wulff","doi":"10.1080/0269249x.2020.1787229","DOIUrl":"https://doi.org/10.1080/0269249x.2020.1787229","url":null,"abstract":"The genus Entomoneis includes diatoms with an elevated bilobate keel, a sigmoid raphe canal and numerous girdle bands. It is known to inhabit various environments, from freshwater to marine, both plankton and benthos. During a phytoplankton investigation in the Kungälv estuary on the west coast of Sweden, we observed numerous cells belonging to Entomoneis. Further morphological investigations performed with light and electron microscopy allowed us to describe Entomoneis annagodhei, sp. nov., with a unique set of morphological characters. Most importantly, a still undocumented character proved to be an oblique transapical fascia across the centre of the valve. Other distinctive features of this species are a pronounced raphe canal with dense raphe fibulae, very fine striation, resolvable only with electron microscopy, external lanceolate slit-like opening of the central nodule, and fine, linear to undulate external ridges running more or less parallel and adjacent to the raphe and valve margin. The morphological characters and morphometry are discussed in comparison with similar taxa. Our results contribute to the under-appreciated diversity of Entomoneis, especially inhabiting the marine plankton.","PeriodicalId":11199,"journal":{"name":"Diatom Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2020-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/0269249x.2020.1787229","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42198702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Fistulifera alcalina sp. nov. (Naviculales, Stauroneidaceae) a new alkaliphilic diatom species from Lake Okeechobee, Florida (USA) Fistulifera alcalina sp.nov.（Naviculales，Stauroneidaceae）一种产于美国佛罗里达州奥基乔比湖的新型嗜碱硅藻

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-07-02 DOI: 10.1080/0269249x.2020.1801517

D. Berthold, T. Frankovich, E. Gaiser, H. D. Laughinghouse

引用次数: 0

Discovery of an undescribed species of Aulacoseira from highland Costa Rica 在哥斯达黎加高地发现一种未描述的Aulacoseira

IF 1.8 3区生物学

Diatom Research Pub Date : 2020-07-02 DOI: 10.1080/0269249x.2020.1797884

K. A. Haberyan, S. Horn

引用次数: 1

Correction 修正