DOCSLIB.ORG

Oceanological and Hydrobiological Studies

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Oceanological and Hydrobiological Studies Oceanological and Hydrobiological Studies International Journal of Oceanography and Hydrobiology Volume 45, Issue 3, September 2016 ISSN 1730-413X pages (377-387) eISSN 1897-3191 Dry weight and calcium carbonate encrustation of two morphologically differentChara species: a comparative study from different lakes by Abstract Andrzej Pukacz1,*, Mariusz Pełechaty2, Two charophyte species (Chara tomentosa Thulli. 1799 Marcin Frankowski3, Eugeniusz Pronin2 and Chara globularis L. 1753) were studied to assess their biomass and CaCO3 production in seven hard-water lakes in Western Poland. In each lake, samples of ten individ- uals from three study sites were collected for dry weight (DW) and calcium carbonate content (% CaCO3) analyses. Additionally, physicochemical parameters of water collected from the above sampling sites were analyzed. DOI: 10.1515/ohs-2016-0034 No significant differences were found between the Category: Original research paper study sites in each lake for any of the analyzed parameters. In all the lakes, DW of C. tomentosa (0.60 ± 0.23 g indiv.-1) Received: October 27, 2015 was significantly higher and more differentiated than Accepted: February 22, 2016 DW of C. globularis (0.11 ± 0.08 g indiv.-1), suggesting species-specificity. The CaCO3 content in DW for C. tomentosa was higher (58.8-70.9%) than in C. globularis (50.1-68.3%), however, it did not reflect the DW differen- 1 Polish-German Research Institute, Collegium tiation, suggesting lake-specificity. The physicochemical Polonicum, Adam Mickiewicz University in properties of water revealed clear lake-to-lake differen- Poznań, ul. Kościuszki 1, 69-100 Słubice, Poland tiation. Different correlations between dry weight and 2Department of Hydrobiology, Faculty of calcium carbonate content and lake characteristics were found for each species. The results showed that DW and Biology, Adam Mickiewicz University in Poznań, % CaCO3 are closely related to habitat conditions and ul. Umultowska 89, 61-614 Poznań, Poland different factors may influence the individual biomass of 3Department of Water and Soil Analysis, Faculty each species. of Chemistry, Adam Mickiewicz University in Poznań, ul. Umultowska 89b, 61-614 Poznań, Poland Key words: charophytes, individual biomass, calcite encrustation, water properties, inter-lake variability * Corresponding author: [email protected] The Oceanological and Hydrobiological Studies is online at oandhs.ocean.ug.edu.pl ©Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved. 378 Oceanological and Hydrobiological Studies, VOL. 45, ISSUE 3 | SEPTEMBER 2016 Andrzej Pukacz, Mariusz Pełechaty, Marcin Frankowski, Eugeniusz Pronin Introduction et al. 2013, Pełechaty et al. 2013). Besides, little is also known about factors affecting Charophytes are one of the main groups of the charophyte biomass production and the formation macrophytes occurring in clean, hard-water lakes. They of encrustations. Most works on the subject written form large meadows and are therefore an important so far are based on experimental studies investigating structural and functional element of the littoral zone. single factors which affect charophyte biomass (e.g. In the literature, there are more and more references Ray et al. 2003). We know that the content of nutrients to charophytes, not only in the context of their sensiti- (Kufel, Rymuza 2014) and the amounts of calcium vity as water quality indicators, but also as a significant and magnesium ions in the water (Asaeda et al. 2014) habitat forming element (as summarized by Schneider are among the main environmental factors affecting et al. 2015). This is reflected e.g. in the alternative the amount of biomass and the contribution of stable state theory for shallow lakes (Scheffer 1998). carbonates. There is much evidence that similar factors According to Van den Berg et al. (1998), charophytes operate in the lacustrine environment, and the amount play a special role in maintaining clean water quality, and precipitation rate of carbonates is site-specific among others through: increasing the sedimentation (Pełechaty et al. 2015). This is suggested e.g. by the from the ambient water, preventing the resuspension results obtained by Pukacz et al. (2014a), showing that of bottom sediments or limiting the development both the dry weight of charophytes and the amount of phytoplankton. of carbonate encrustations they produce change with The key role is played by the quantitative depth. contribution of charophytes (which form dense Learning exactly how the quantitative and qualita- meadows in Chara lakes) in the littoral zone, and tive structure of biomass changes in relation to thus by the biomass they produce. In some lakes, environmental characteristics may be very important charophyte meadows may cover more than 50% both for the current studies concerning the functio- of the lake bottom surface (Pukacz, Pełechaty ning of lake ecosystems, and – as Dittrich & Obst (2004) 2013) and are therefore an important environment- suggested – also in paleoecological and paleoclimatic -forming element influencing both the biocenosis research. and the water quality properties, as well as sediment The aim of the presented study was to: a) quantify formation processes (Pełechaty et al. 2013; Blindow the dry weight and CaCO3 precipitation of two et al. 2014). As evidenced by contemporary studies, charophyte species in different lake ecosystems, b) the biomass of charophytes can be considerably high determine possible relationships between the environ- (over 2 kg dry weight m-2), including more than 80% mental characteristics of the investigated lakes and of carbonate encrustations (Pukacz et al. 2014a and the dry weight and CaCO3 content in DW of the two literature quoted therein). Moreover, considerable species. We hypothesized that the amount of dry amounts of nutrients are incorporated in charophyte weight and CaCO3 encrustation is species-specific but biomass (Kufel, Kufel 2002; Rodrigo et al. 2007) and the CaCO3 content in DW is lake-specific. remain immobilized there for a long time. What is also important is that some charophytes (especially in clean Methods lakes) can overwinter as green biomass (Blindow 1992a, Pukacz et al. 2014b). In addition, a considerable part of carbon and phosphorus is permanently immobilized Study sites and sampling in the form of carbonate encrustations, which get into the sediment and turn into lacustrine chalk (Otsuki, The study was carried out between 20 and 26 Wetzel 1972; Murphy et al. 1983; Pełechaty et al. 2013). July 2012, in seven lakes located in Western Poland. Despite the seemingly obvious impact The same high-pressure weather (cloudless or slightly of charophyte biomass on lake ecosystems (especially cloudy, high temperatures and light wind) prevailed those with a considerable contribution in charophyte during the whole study period. The lakes differed in meadows), there is still little data concerning in situ terms of morphology, flow type and the nature of the variability of charophyte biomass production and drainage basin (Table 1). On the one hand, the group factors affecting it. of lakes included a shallow, small polymictic lake Studies carried out so far suggest that charophyte (Lake Jasne) and on the other, a deep, large lake (Lake biomass depends both on the species (Królikowska Niesłysz). The lakes had different hardness levels (from 1997), and on the lake (Kufel, Kufel 2002). There is also 3.62°dH in Lake Pierwsze to 12.79°dH in Lake Karskie) much evidence that the percentage contribution and the parameters related to hardness varied in a of precipitated carbonates is species-specific (Kufel similar manner. Despite this, as well as a considerable www.oandhs.ocean.ug.edu.pl ©Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved. Oceanological and Hydrobiological Studies, VOL. 45, ISSUE 3 | SEPTEMBER 2016 379 Lake-to-lake differences in dry weight and encrustation in two Chara species Table 1 Characteristics of the studied lakes (based on: Jańczak 1996; Pełechaty, Pukacz 2006; Pełechaty et al. 2007) Unit Jasne Karskie Malcz Męckie Niesłysz Pierwsze Złoty Potok 52°17'7''N 52°55'4''N 52°21'1''N 52°22'0''N 52°13'9''N 52°23'11"N 52°13'0''N Geographical coordinates - 15°03'06''E 15°04'8''E 15°13'3''E 15°11'2''E 15°23'8''E 15°09'18''E 15°22'5''E Surface area ha 15.1 150 36.2 40.9 486.2 19.3 32.8 Mean depth m 4.3 6.2 3.4 9.2 7.8 4.7 5.9 Max depth m 9.5 17.6 7.3 22.7 34.7 10.7 13.7 Lake type - outflow flow no flows flow no flows no flows no flows Stratification - incomplete complete incomplete complete complete incomplete complete SD visibility m 3 3.1 3.8 6.5 4.2 5.4 4.3 C. tomentosa m 3 3 3 2 2 sampling depth C. globularis m 4 3 3 4 4 sampling depth morphometric variety, all the lakes are classified as negligible importance of vascular plants and mosses. mesotrophic. This is evidenced by relatively low TP The cover of C. globularis was in many cases greater. concentrations (from 0.010 to 0.033 mg l-1 in Lake Jasne In nine out of 15 studied stands, this species covered and Lake Niesłysz, respectively) and TN concentra- 100% of the studied stand and in five stands the cover tions (from 1.23 to 1.87 mg l-1 in Lake Złoty Potok and reached or even exceeded 70%. At one site, the cover Lake Karskie, respectively). All the lakes had high was only 40%. Similarly to C. tomentosa, C. globularis water transparency (Secchi Depth visibility > 3 m), was always the dominant species compared to much with Lake Męckie having the highest water clarity less abundant accompanying single vascular plants (SD = 6.5 m). What these lakes had in common was and mosses. also well-developed aquatic vegetation, dominated Each species was sampled in five lakes from three by charophyte meadows.
Load more

Recommended publications
  • Northamptonshire Biodiversity Records Centre NBRC Newsletter 20
    Northamptonshire Biodiversity Records Centre The home of quality ecological data in Northamptonshire NBRC Newsletter 20 Autumn/Winter 2020 You have been keeping us wonderfully busy with your submitted records of the species of Northamptonshire; the WILDside Recording Community has been a great home for sightings and support. You have not been stopped in noticing and supporting our local nature - recording in gardens, out on local exercise walks and further afield when restrictions allow. Our website has received over one thousand records, covering over five hundred taxa since the first lockdown began! Many of you will have noticed our website has had a re-vamp of late, shifting Beyond direct website submission, we know you also to the latest platform with SSL security, whilst submit directly to our county recorders (David James retaining all the recording features, ‘look out for’ recently reported over 25,000 butterfly records for surveys and resources to support local recording and 2020!) and via other online channels such as iRecord. ecological reporting. If you aren’t sure of which surveys we receive you can always check our annual report which lists our partners or ask the team [email protected]. Direct record submissions to our website or via our county recorders (as listed on our new resources for recorders page on the website) are generally processed more swiftly as we get all the needed parts and can contact you if required to complete a record. WILDside seems to have inspired us all to expand our recording repertoire. The ever-increasing taxonomic coverage in your submissions is fantastic to see! It seems many have used the wealth of virtual training at our fingertips this year through Wildlife Trust BCN Training Courses, the Field Studies Council and a host of others as can be seen through this wonderfully Thanks to the support of the Environment Agency, we compiled list of resources as put together by the have now launched our latest survey ‘Look out for South East Wales Biodiversity Records Centre.
    [Show full text]
  • Seventy Years of Changes in the Abundance of Danish Charophytes
    Freshwater Biology (2013) 58, 1682–1693 doi:10.1111/fwb.12159 Seventy years of changes in the abundance of Danish charophytes LARS BAASTRUP-SPOHR, LARS LØNSMANN IVERSEN, JEPPE DAHL-NIELSEN AND KAJ SAND-JENSEN Freshwater Biological Laboratory, Biological Institute, University of Copenhagen, Hillerød, Denmark SUMMARY 1. Charophytes grow attached to soft bottoms in ponds, streams, lakes and estuaries and are highly threatened throughout Europe according to the national Red Lists. We used Danish studies on fresh- water charophyte distributions conducted around 1940 and repeated measurements during recent years to evaluate the historical development of species richness and dominance patterns. We also tested to what extent historical changes of species abundance in 29 waterbodies were related to landscape features, water quality and species traits. 2. We found that three species of freshwater charophytes (Chara filiformis, Tolypella intricata and Nitella gracilis) have apparently disappeared from Denmark while one species (Chara connivens) has immigrated. National species richness has thus declined from 21 to 19 species. 3. Species abundance based on occurrence in many waterbodies followed a linear rank–log abun- dance relationship both in the historical and the recent studies. The dominance structure was stronger today than historically as common species have become relatively more abundant and uncommon species relatively rarer. 4. Among species traits, perenniality and preference for alkaline waters typical of deep-growing species in large alkaline lakes, a rare contemporary habitat, were significantly related to the historic species decline. Species increasing in abundance had wide tolerances to alkalinity and water nitrogen content. 5. Twenty-nine lakes and ponds studied repeatedly showed a significant decline of mean species richness from 3.4 to 2.4 during the 70 years.
    [Show full text]
  • The Worldwide Range of the Charophyte Species Native to Germany
    Rostock. Meeresbiolog. Beitr. Heft 28 45-96 Rostock 2018 Heiko KORSCH* * Schillbachstraße 19, 07743 Jena [email protected] The worldwide range of the Charophyte species native to Germany Abstract Based on extensive evaluations, the worldwide distributions of the 36 Charophyte species native to Germany are presented. Some of these species are distributed almost worldwide (e.g. Chara braunii, C. vulgaris, Nitella hyalina), while others have much smaller ranges. Chara filiformis for example is restricted to a small part of continental Europe. For many species comments are made to explain the species concept used or to give hints about doubtful data. Keywords: Plant geography, Characeae, Charophytes, range-maps, Chara, Lamprothamnium, Lychnothamnus, Nitella, Nitellopsis, Tolypella Zusammenfassung: Areale der in Deutschland heimischen Characeen-Arten. Auf der Grundlage umfangreicher Recherchen werden die weltweiten Areale der in Deutschland vorkommenden 36 Characeen-Arten dargestellt. Von diesen Arten sind einige (z. B. Chara braunii, C. vulgaris, Nitella hyalina) fast weltweit verbreitet, andere haben deutlich kleinere Areale. So ist z. B. Chara filiformis auf kleine Teile Europas beschränkt. Zu einer ganzen Reihe von Arten werden Kommentare geben. Diese erläutern die verwendeten Artumgrenzungen oder geben Hinweise zu fraglichen Angaben. 1 Introduction In recent decades and after a phase of stagnation in Germany, interest in the Characeae has markedly increased. The Habitats Directive 92/43/EC (EC1992) and the Water Framework Directive 2000/60/EC (EC 2000) of the European Union have intensified this process. Because of their size and their complex structure, the Charophytes are morphologically clearly distinguished from most other groups of Algae. The results of genetic investigations show that they are more closely related to the Mosses and higher plants rather than to the other algae (QUI 2008).
    [Show full text]
  • Botanika – Steciana , , - ISSN -
    Roczniki Akademii Rolniczej w Poznaniu CCCXCII Botanika – Steciana , , - www.up.poznan.pl/steciana ISSN - CHAROPHYTES CHARACEAE, CHAROPHYTA OF PEATLAND HABITATS IN THE VICINITY OF DRAWSKO AND MIAŁY NOTEĆ FOREST, NW POLAND P M, M G P. Mróz, Didactic and Scientifi c Branch in Piła, Adam Mickiewicz University, Kołobrzeska , - Piła, Poland, e-mail: pmr [email protected] M. Gąbka, Department of Hydrobiology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Umultowska , - Poznań, Poland, e-mail: [email protected] (Received: April , . Accepted: May , ) ABSTR ACT. This paper presents recent localities of charophytes in the peatland complex of the northern part of Noteć Forest (Wielkopolska, Poland). In alkaline or calcareous fens and shallow waters, seven spe- cies of charophytes were found: Chara globularis, C. intermedia, C. virgata, C. vulgaris, Nitella capillaris, N. mucronata and N. syncarpa. Some of the charophytes, which were observed in this area, are regarded as endangered and vulnerable in Poland, especially, C. intermedia, N. capillaris and N. syncarpa. The pre- liminary research results on the studied charophyte distribution and ecology are presented. KEY WORDS: Characeae, Chara, Nitella, peatland habitat, distribution, threatened and rare charophytes, Noteć Forest, Poland INTRODUCTION (e.g. G , L et . ) and Lublin regions (K and M , B , Charophytes (Characeae, Charophyta) are macro- U et . ), as well as the southern part of scopic algae that grow mainly in standing and fresh the country (K , C-M- waters, less frequently in fl owing and saline waters (e.g. and V ). D , , H and D , In Wielkopolska, where out of Polish represent- W , U ). In Poland, the ma- atives of Characeae are found, three species occur exclu- jority of studies of these macrophytes were conducted in sively in peatlands: Chara tenuispina, C.
    [Show full text]
  • Russia) with Notes on a New Record of Chara Virgata
    Memoranda Soc. Soc. Fauna Fauna Flora Flora Fennica Fennica 89, 89: 2013 57–64. • Blinova 2013 & Koistinen 57 A review of Characeae (Charophyta) in Murmansk Region (Russia) with notes on a new record of Chara virgata Ilona V. Blinova & Marja Koistinen Blinova, I. V., Polar-Alpine Botanical Garden-Institute, Kola Research Centre of Russian Academy of Sciences, Kirovsk, Murmansk Region, Russia. E-mail: [email protected] Koistinen, M., Finnish Museum of Natural History (Botany), P.O. Box 7, FI-00014 University of Helsinki, Finland. E-mail: [email protected] Five species of Characeae are known in Murmansk Region from five biogeographic provinces (Lps, Lt, Lim, Ks, Lv). One of them, Chara strigosa A.Braun, is included in the Red Data Book of the Russian Federation. A new site for C. virgata Kütz. is described from a rich fen in the province of Lim. This is the second record of the species in the Region. The new site is situated about 100 km NW of the previous one in a lake near the White Sea coast. The status of this species in the Regional Red Data Book should be ’Vulnerable’. Introduction and A. Langangen (Oslo) in 1996–1997, and four species were recognized (Chara globularis, C. The Characeae are an important component in strigosa, Nitella flexilis, N. opaca). The Chara- aquatic ecosystems of lakes and smaller water ceae have been poorly studied in Murmansk Re- bodies (Coops 2002). In recent decades the role gion and no review has so far been prepared. This of this group has been re-assessed for conserva- paper presents the first synopsis of the family in tion purposes in Europe because stoneworts are the area.
    [Show full text]
  • SOME CHAROPHYTES (CHLOROPHYTA, CHARALES) from ALASKA, USA Observations Nitella Flexilis (L.) C. AGARDH
    Acta Musei Nationalis Pragae, Series B, Historia Naturalis, 57 [2001] (3-4): 51-56 issued February 2002 Sbornfk Narodntho muzea, Serie B, Pffrodnf vedy, 57 [2001] (3-4): 51-56 SOME CHAROPHYTES (CHLOROPHYTA, CHARALES) FROM ALASKA, USA ANDERSLANGANGEN Hallagerbakken 82b, 1256 Oslo, Norway; e-mail: [email protected] Langangen, A. (2002): Some Charophytes (Chlorophyta, Charales) from Alaska, USA. - Acta Mus. Nat. Pragae, Ser. B, Hist. Nat., 56 [200 I] (3-4): 51-56, Praha. ISSN 0036-5343. Abstract. Based on herbarium studies, seven charophytes are reported from Alaska: Nitella flexilis, N. opaca , Tolypella canadensis, Chara contraria, C. globularis, C. virgata and C. aspera. In addition Nitella acuminata and three N0l1h American species have been reported: Nitella opacoides, N. atkahensis and Chara macounii. The author questions the validity ofthese taxa, and is ofthe opinion that they are forms ofNitella jlexlis and Chara aspera respectivily. Ecological information and distributions are given for each species; maps illustrate their distribution in Alaska. • Charophytes, Characeae, Chara, Nitella, Tolypella, Alaska. Received September 4, 2000 Introduction Alaska is the northernmost state of the USA. It covers an Another species reported from Alaska is Nitella acumina­ area ofc. 1.5 million krrr',and extends from 51"Nto 71ON. The ta subglomerata, which has no visible differences from N. climate varies greatly, from arctic in the north, to continental in jlexilis f. subcapitata A. BRAUN (see also icon 178 and 187 in the interior to coastal in the south. Much of the state has Wood and Imahori 1964). permafrost (Text-fig. 1). Ecology: In Alaska N flexilis has only been found in fresh Charophytes have been little studied in Alaska, and there water lakes and ponds from sea level to 700 m a.s.l.
    [Show full text]
  • Distribution of Chara Braunii Gmellin 1826 (Charophyta) in Poland
    Vol. 76, No. 4: 313-320, 2007 ACTA SOCIETATIS BOTANICORUM POLONIAE 313 DISTRIBUTION OF CHARA BRAUNII GMELLIN 1826 (CHAROPHYTA) IN POLAND JACEK URBANIAK Department of Botany and Plant Ecology Wroc³aw University of Environmental and Life Sciences Pl. Grunwaldzki 24a, 50-363 Wroc³aw, Poland e-mail: [email protected] (Received: May 22, 2006. Accepted: May 15, 2007) ABSTRACT The distribution and ecology of Chara braunii Gmellin 1826 in Poland is described, based on herbaria collec- tions, literature data and own investigations. Maps showing the distribution of Ch. braunii are presented, as well as a list of localities with brief descriptions of the habitats. Additionally, some remarks on the distribution limit in the northern hemisphere are given. KEY WORDS: Chara braunii, charophyta, charceae, algae, distribution, fish ponds, ecology, Poland. INTRODUCTION MATERIAL AND METHODS Chara braunii (Chara coronata) is the only one of seve- The maps of the distribution of Chara braunii in Poland ral ecorticated species of the genus Chara occurring in Eu- and Europe were prepared on the basis field investigations rope (Krause 1997) and the only species without cortica- done in 2003-2005, literature data and herbarium collec- tion known from Poland. tions. I have examined the collections of charophytes from Fish ponds are in Poland the only known sites where the following herbaria (acronyms according to Holmgren Chara braunii can be found, and where Ch. braunii someti- and Holmgren 1998) and private collections: Izabela mes build a community: Charetum coronatae Corillion D¹mbska Collection placed in Department of Hydrobiolo- 1957 with Ch. braunii as a characteristic species.
    [Show full text]
  • Spatial Structure of Vegetation in a Small Charophyte Dominated Lake
    Biodiv. Res. Conserv. 29: 97-104, 2013 BRC www.brc.amu.edu.pl DOI 10.2478/biorc-2013-0001 Submitted 21.11.2012, Accepted 11.03.2013 Spatial structure of vegetation in a small charophyte dominated lake Andrzej Pukacz1* & Mariusz Pełechaty2 1Collegium Polonicum, UAM-Viadrina, Kościuszki 1, 69-100 Słubice, Poland, e-mail: [email protected] 2Department of Hydrobiology, Faculty of Biology, Adam Mickiewicz University, Poland, Umultowska 89, 61-614 Poznań * corresponding author Abstract: The aim of the paper was to recognize the current spatial structure and organization of vegetation and the diversity of charophytes on an ecosystem scale of a small, outflow Lake Jasne (Western Poland). The lake is characterized by limited anthropogenic pressure and forested catchment basin. The study was performed in the vegetative season 2010. The vegetation was studied along transect, using the mid-European Braun-Blanquet method of phytosociological relevés. Additionally, basic physical-chemical parameters were measured, to characterize habitat conditions of the lake. The results of physical-chemical analyses evidenced high water quality, and obtained parameter values were typical for mesotrophy. The vegetation survey revealed that almost 70% of the lake’s bottom was overgrown by vegetation. The transects documented the structure of phy- tolittoral typical for chara-lake and the spatial dominance of charophytes in the studied lake (charophyte meadows reached up to 64% of the phytolittoral area). Charophytes were also defining the maximum depth extent of vegetation in Lake Jasne, reaching 5.6 m. As many as 10 charophyte species were stated: Chara virgata, Ch. aspera, Ch. filiformis, Ch. globularis, Ch. intermedia, Ch.
    [Show full text]
  • Notulae to the Italian Flora of Algae, Bryophytes, Fungi and Lichens: 8
    Italian Botanist 8: 47–62Notulae (2019) to the Italian flora of algae, bryophytes, fungi and lichens: 8 47 doi: 10.3897/italianbotanist.8.48263 RESEARCH ARTICLE http://italianbotanist.pensoft.net Notulae to the Italian flora of algae, bryophytes, fungi and lichens: 8 Sonia Ravera1, Marta Puglisi2, Alfredo Vizzini3, Cecilia Totti4, Gabriella Arosio5, Renato Benesperi6, Elisabetta Bianchi6, Fabrizio Boccardo7, Ian Briozzo8, Davide Dagnino8, Antonio B. De Giuseppe9, Francesco Dovana10, Luca Di Nuzzo6, Simonetta Fascetti11, Gabriele Gheza12, Paolo Giordani13, Jiří Malíček14, Mauro Giorgio Mariotti8, Helmut Mayrhofer15, Luigi Minuto8, Juri Nascimbene16, Pier Luigi Nimis17, Stefano Martellos17, Nicodemo G. Passalacqua9, Elena Pittao17, Giovanna Potenza11, Domenico Puntillo9, Leonardo Rosati11, Giovanni Sicoli18, Daniel Spitale19, Valeria Tomaselli20, Raffaella Trabucco21, Claudia Turcato8, Chiara Vallese16, Maria Zardini21 1 Via del Labaro 54, 00188 Roma, Italy 2 Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Sezione di Biologia vegetale, Università di Catania, via A. Longo 19, 95125, Catania, Italy 3 Institute for Sustainable Plant Protection (IPSP) – CNR, viale P.A. Mattioli 25, 10125, Torino, Italy 4 Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy 5 Ecosfera s.n.c., Corso Italia 78, 20832 Desio (Monza e Brianza), Italy 6 Dipartimento di Biologia, Università di Firenze, via La Pira 4, 50121 Firenze, Italy 7 Via Filippo Bettini 14/11, I-16162 Genova, Italy 8 Dipartimento di Scienze della Terra, Ambiente e Vita, Università di Genova, Corso Europa 26, 16132 Genova, Italy 9 Museo di Storia Naturale della Calabria ed Orto Botanico, Università della Calabria, 87036 Arcavàcata di Rende (Cosenza), Italy 10 Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, viale P.A.
    [Show full text]
  • Watsonia 24, 203-208
    Watsonia 24: 203–208 (2002) CHARACEAE CHECKLIST 203 A checklist of Characeae of the British Isles J. A. BRYANT (formerly J. A. MOORE) Department of Botany, Natural History Museum, London SW7 5BD N. F. STEWART Cholwell Cottage, Posbury, Crediton Devon EX17 3QE and C. A. STACE Department of Biology, University of Leicester, Leicester LE1 7RH KEYWORDS: Charophytes, Chara, Lamprothamnum, Nitellopsis, Nitella, Tolypella. ABSTRACT We provide for the first time a checklist of charophytes of the British Isles (comprising Great Britain, Ireland, the Isle of Man and the Channel Islands) that includes in the synonymy all the basionyms and all the other names known to us to have been used in the British and Irish literature, and the literature references to all the places of publication of these names. The taxa are all included in one family, Characeae, which is divided into two tribes, five genera and 34 species, plus six extra varieties. One new combination is made: Chara virgata Kütz. var. annulata (Lilj.) N. F. Stewart & J. A. Bryant, comb. nov. INTRODUCTION Although now usually considered to be a distinct phylum of algae (Charophyta), or at least a distinct class (Charophyceae) of the green algae or Chlorophyta, the charophytes, charads or stoneworts were traditionally studied along with vascular plants by 19th Century field naturalists because in their macroscopic dimensions and gross morphology they superficially resembled such plants as Equisetum and Potamogeton. Moreover they can be preserved as herbarium specimens like vascular plants, and are the only algae to be included under the term ‘macrophytes’ by freshwater ecologists. Hence, by little more than historical accident, they are listed alongside vascular plants in BSBI Strategy 2000, which sets out the aims and objectives of the Botanical Society of the British Isles.
    [Show full text]
  • Re-Establishment Techniques and Transplantations of Charophytes to Support Threatened Species
    plants Review Re-Establishment Techniques and Transplantations of Charophytes to Support Threatened Species Irmgard Blindow 1,*, Maria Carlsson 2 and Klaus van de Weyer 3 1 Biological Station of Hiddensee, University of Greifswald, D-18565 Kloster, Germany 2 County Administration Jönköpings Län, Hamngatan 4, S-551 86 Jönköping, Sweden; [email protected] 3 Lanaplan, Lobbericher Str. 5, D-41334 Nettetal, Germany; [email protected] * Correspondence: [email protected] Abstract: Re-establishment of submerged macrophytes and especially charophyte vegetation is a common aim in lake management. If revegetation does not happen spontaneously, transplantations may be a suitable option. Only rarely have transplantations been used as a tool to support threatened submerged macrophytes and, to a much lesser extent, charophytes. Such actions have to consider species-specific life strategies. K-strategists mainly inhabit permanent habitats, are perennial, have low fertility and poor dispersal ability, but are strong competitors and often form dense vegetation. R-strategists are annual species, inhabit shallow water and/or temporary habitats, and are richly fertile. They disperse easily but are weak competitors. While K-strategists easily can be planted as green biomass taken from another site, rare R-strategists often must be reproduced in cultures before they can be planted on-site. In Sweden, several charophyte species are extremely rare and fail to (re)establish, though apparently suitable habitats are available. Limited dispersal and/or lack of diaspore reservoirs are probable explanations. Transplantations are planned to secure the occurrences Citation: Blindow, I.; Carlsson, M.; of these species in the country. This contribution reviews the knowledge on life forms, dispersal, van de Weyer, K.
    [Show full text]
  • Universidad De Sevilla Facultad De Farmacia “Algas Verdes Macroscópicas De La Península Ibérica”
    UNIVERSIDAD DE SEVILLA FACULTAD DE FARMACIA “ALGAS VERDES MACROSCÓPICAS DE LA PENÍNSULA IBÉRICA” Lorena Romero Sánchez Universidad de Sevilla Facultad de Farmacia Trabajo de Fin de Grado Grado en Farmacia Algas verdes macroscópicas de la Península Ibérica Lorena Romero Sánchez Dpto. de Biología Vegetal y Ecología/ Área de Botánica Tutor: Rafael González Albaladejo Revisión bibliográfica RESUMEN Las algas macroscópicas se pueden agrupar en tres ramas filogenéticas: las algas verdes, las algas rojas y las algas pardas. Esta revisión bibliográfica se centra en las algas verdes, concretamente en las algas verdes macroscópicas de la península Ibérica y las islas Baleares. Para ello se han utilizado dos bases de datos, “AlgaeBase” y “Web of Science”. Con la primera se ha conseguido un inventario con el número de especies presentes en el área geográfica y con la segunda se ha recopilado una serie de artículos científicos que describen las principales aplicaciones de estas algas en diversos ámbitos como en medicina, farmacia y medio ambiente, además de los prometedores usos que se les podrían dar. Se han identificado 147 especies de algas verdes, pertenecientes a 26 familias y 43 géneros. A pesar de esta diversidad de especies, el conocimiento que hay sobre ellas es muy limitado, pues se existe poca información sobre las algas verdes en general. Estas 147 especies están dividas a su vez en cuatro clases: Charophyceae, Trebouxiophyceae, Chlorophyceae, y Ulvophyceae. A esta última clase pertenece el 76% de las especies presentes en España, por lo que es un grupo de gran importancia, sin embargo, no todas las especies han sido estudiadas.
    [Show full text]