Water Framework Directive Development of Classification Tools for Ecological Assessment: Macroalgae Species Richness
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RED ALGAE · RHODOPHYTA Rhodophyta Are Cosmopolitan, Found from the Artic to the Tropics
RED ALGAE · RHODOPHYTA Rhodophyta are cosmopolitan, found from the artic to the tropics. Although they grow in both marine and fresh water, 98% of the 6,500 species of red algae are marine. Most of these species occur in the tropics and sub-tropics, though the greatest number of species is temperate. Along the California coast, the species of red algae far outnumber the species of green and brown algae. In temperate regions such as California, red algae are common in the intertidal zone. In the tropics, however, they are mostly subtidal, growing as epiphytes on seagrasses, within the crevices of rock and coral reefs, or occasionally on dead coral or sand. In some tropical waters, red algae can be found as deep as 200 meters. Because of their unique accessory pigments (phycobiliproteins), the red algae are able to harvest the blue light that reaches deeper waters. Red algae are important economically in many parts of the world. For example, in Japan, the cultivation of Pyropia is a multibillion-dollar industry, used for nori and other algal products. Rhodophyta also provide valuable “gums” or colloidal agents for industrial and food applications. Two extremely important phycocolloids are agar (and the derivative agarose) and carrageenan. The Rhodophyta are the only algae which have “pit plugs” between cells in multicellular thalli. Though their true function is debated, pit plugs are thought to provide stability to the thallus. Also, the red algae are unique in that they have no flagellated stages, which enhance reproduction in other algae. Instead, red algae has a complex life cycle, with three distinct stages. -
SNH Commissioned Report 765: Seagrass (Zostera) Beds in Orkney
Scottish Natural Heritage Commissioned Report No. 765 Seagrass (Zostera) beds in Orkney COMMISSIONED REPORT Commissioned Report No. 765 Seagrass (Zostera) beds in Orkney For further information on this report please contact: Kate Thompson Scottish Natural Heritage 54-56 Junction Road KIRKWALL Orkney KW15 1AW Telephone: 01856 875302 E-mail: [email protected] This report should be quoted as: Thomson, M. and Jackson, E, with Kakkonen, J. 2014. Seagrass (Zostera) beds in Orkney. Scottish Natural Heritage Commissioned Report No. 765. This report, or any part of it, should not be reproduced without the permission of Scottish Natural Heritage. This permission will not be withheld unreasonably. The views expressed by the author(s) of this report should not be taken as the views and policies of Scottish Natural Heritage. © Scottish Natural Heritage 2014. COMMISSIONED REPORT Summary Seagrass (Zostera) beds in Orkney Commissioned Report No. 765 Project No: 848 Contractors: Emma Jackson (The Marine Biological Association of the United Kingdom) and Malcolm Thomson (Sula Diving) Year of publication: 2014 Keywords Seagrass; Zostera marina; Orkney; predictive model; survey. Background Seagrasses (Zostera spp) are marine flowering plants that develop on sands and muds in sheltered intertidal and shallow subtidal areas. Seagrass beds are important marine habitats but are vulnerable to a range of human induced pressures. Their vulnerability and importance to habitat creation and ecological functioning is recognised in their inclusion on the recommended Priority Marine Features list for Scotland’s seas. Prior to this study, there were few confirmed records of Zostera in Orkney waters. This study combined a predictive modelling approach with boat-based surveys to enhance under- standing of seagrass distribution in Orkney and inform conservation management. -
The Marine Life Information Network® for Britain and Ireland (Marlin)
The Marine Life Information Network® for Britain and Ireland (MarLIN) Description, temporal variation, sensitivity and monitoring of important marine biotopes in Wales. Volume 1. Background to biotope research. Report to Cyngor Cefn Gwlad Cymru / Countryside Council for Wales Contract no. FC 73-023-255G Dr Harvey Tyler-Walters, Charlotte Marshall, & Dr Keith Hiscock With contributions from: Georgina Budd, Jacqueline Hill, Will Rayment and Angus Jackson DRAFT / FINAL REPORT January 2005 Reference: Tyler-Walters, H., Marshall, C., Hiscock, K., Hill, J.M., Budd, G.C., Rayment, W.J. & Jackson, A., 2005. Description, temporal variation, sensitivity and monitoring of important marine biotopes in Wales. Report to Cyngor Cefn Gwlad Cymru / Countryside Council for Wales from the Marine Life Information Network (MarLIN). Marine Biological Association of the UK, Plymouth. [CCW Contract no. FC 73-023-255G] Description, sensitivity and monitoring of important Welsh biotopes Background 2 Description, sensitivity and monitoring of important Welsh biotopes Background The Marine Life Information Network® for Britain and Ireland (MarLIN) Description, temporal variation, sensitivity and monitoring of important marine biotopes in Wales. Contents Executive summary ............................................................................................................................................5 Crynodeb gweithredol ........................................................................................................................................6 -
Chemical Composition and Potential Practical Application of 15 Red Algal Species from the White Sea Coast (The Arctic Ocean)
molecules Article Chemical Composition and Potential Practical Application of 15 Red Algal Species from the White Sea Coast (the Arctic Ocean) Nikolay Yanshin 1, Aleksandra Kushnareva 2, Valeriia Lemesheva 1, Claudia Birkemeyer 3 and Elena Tarakhovskaya 1,4,* 1 Department of Plant Physiology and Biochemistry, Faculty of Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; [email protected] (N.Y.); [email protected] (V.L.) 2 N. I. Vavilov Research Institute of Plant Industry, 190000 St. Petersburg, Russia; [email protected] 3 Faculty of Chemistry and Mineralogy, University of Leipzig, 04103 Leipzig, Germany; [email protected] 4 Vavilov Institute of General Genetics RAS, St. Petersburg Branch, 199034 St. Petersburg, Russia * Correspondence: [email protected] Abstract: Though numerous valuable compounds from red algae already experience high demand in medicine, nutrition, and different branches of industry, these organisms are still recognized as an underexploited resource. This study provides a comprehensive characterization of the chemical composition of 15 Arctic red algal species from the perspective of their practical relevance in medicine and the food industry. We show that several virtually unstudied species may be regarded as promis- ing sources of different valuable metabolites and minerals. Thus, several filamentous ceramialean algae (Ceramium virgatum, Polysiphonia stricta, Savoiea arctica) had total protein content of 20–32% of dry weight, which is comparable to or higher than that of already commercially exploited species Citation: Yanshin, N.; Kushnareva, (Palmaria palmata, Porphyra sp.). Moreover, ceramialean algae contained high amounts of pigments, A.; Lemesheva, V.; Birkemeyer, C.; macronutrients, and ascorbic acid. Euthora cristata (Gigartinales) accumulated free essential amino Tarakhovskaya, E. -
Notes on Ceramium Roth and Gayliella to Cho, LJ Mcivor Et SM Boo (Rhodophyta, Ceramiaceae) from the Philippines
ARTICLE Notes on Ceramium Roth and Gayliella TO Cho, LJ McIvor et SM Boo (Rhodophyta, Ceramiaceae) from the Philippines Elvie Jane C. Lagan*, Gavino C. Trono, Jr. Marine Science Institute, College of Science, University of the Philippines, Diliman, Quezon City ew studies have reported on the genus Ceramium Roth INTRODUCTION in the Philippines. Further complicating the matter, th genus Gayliella was recently proposed to The genus Ceramium was established by Roth in late 18 accommodate the Ceramium flaccidum complex. century with six species. Presently, this genus has recorded nearly a thousand species, as summarized in Algaebase F Samples were collected in Calatagan, Batangas; Green (http://algaebase.org); however, only less than 300 are accepted Island, Roxas, Palawan; Verde Island, Batangas; Bolinao, taxonomically. Much of the listed binomials are only synonyms Pangasinan; and Alabat Island, Quezon. Eleven Ceramium and of the older valid names. This may be attributed to their four Gayliella species were identified among the collections. Six morphological plasticity (Womersley 1978). Despite various of which, namely, C. aduncum, C. borneense, C. brevizonatum, taxonomic revisions by so many systematists, delineation among C. cingulatum, C. deslongchampsii, and C. fujianum are new the species is still problematic. records for the Philippines. The genus Gayliella was proposed by Cho, McIvor and Boo in 2008 to give light on the taxonomy of Ceramium flaccidum KEYWORDS (Harvey ex Kützing) Ardisone and its heterotypic names, particularly, C. byssoideum Harvey, C. gracillimum var. Ceramium, Gayliella, Ceramiaceae, Philippines, taxonomy byssoideum Mazoyer, and C. taylorii Dawson. Gayliella exhibits an alternate branching pattern, unicellular rhizoids, and three cortical initials per periaxial cell, two of which are produced acropetally and the remaining is produced basipetally and divides transversely. -
Constancea 83.15: SEAWEED COLLECTIONS, NATURAL HISTORY MUSEUM 12/17/2002 06:57:49 PM Constancea 83, 2002 University and Jepson Herbaria P.C
Constancea 83.15: SEAWEED COLLECTIONS, NATURAL HISTORY MUSEUM 12/17/2002 06:57:49 PM Constancea 83, 2002 University and Jepson Herbaria P.C. Silva Festschrift Marine Algal (Seaweed) Collections at the Natural History Museum, London (BM): Past, Present and Future Ian Tittley Department of Botany, The Natural History Museum, London SW7 5BD ABSTRACT The specimen collections and libraries of the Natural History Museum (BM) constitute an important reference centre for macro marine algae (brown, green and red generally known as seaweeds). The first collections of algae were made in the sixteenth and seventeenth centuries and are among the earliest collections in the museum from Britain and abroad. Many collectors have contributed directly or indirectly to the development and growth of the seaweed collection and these are listed in an appendix to this paper. The taxonomic and geographical range of the collection is broad and a significant amount of information is associated with it. As access to this information is not always straightforward, a start has been made to improve this through specimen databases and image collections. A collection review has improved the availability of geographical information; lists of countries for a given species and lists of species for a given country will soon be available, while for Great Britain and Ireland geographical data from specimens have been collated to create species distribution maps. This paper considers issues affecting future development of the seaweed collection at the Natural History Museum, the importance and potential of the UK collection as a resource of national biodiversity information, and participation in a global network of collections. -
A Biotope Sensitivity Database to Underpin Delivery of the Habitats Directive and Biodiversity Action Plan in the Seas Around England and Scotland
English Nature Research Reports Number 499 A biotope sensitivity database to underpin delivery of the Habitats Directive and Biodiversity Action Plan in the seas around England and Scotland Harvey Tyler-Walters Keith Hiscock This report has been prepared by the Marine Biological Association of the UK (MBA) as part of the work being undertaken in the Marine Life Information Network (MarLIN). The report is part of a contract placed by English Nature, additionally supported by Scottish Natural Heritage, to assist in the provision of sensitivity information to underpin the implementation of the Habitats Directive and the UK Biodiversity Action Plan. The views expressed in the report are not necessarily those of the funding bodies. Any errors or omissions contained in this report are the responsibility of the MBA. February 2003 You may reproduce as many copies of this report as you like, provided such copies stipulate that copyright remains, jointly, with English Nature, Scottish Natural Heritage and the Marine Biological Association of the UK. ISSN 0967-876X © Joint copyright 2003 English Nature, Scottish Natural Heritage and the Marine Biological Association of the UK. Biotope sensitivity database Final report This report should be cited as: TYLER-WALTERS, H. & HISCOCK, K., 2003. A biotope sensitivity database to underpin delivery of the Habitats Directive and Biodiversity Action Plan in the seas around England and Scotland. Report to English Nature and Scottish Natural Heritage from the Marine Life Information Network (MarLIN). Plymouth: Marine Biological Association of the UK. [Final Report] 2 Biotope sensitivity database Final report Contents Foreword and acknowledgements.............................................................................................. 5 Executive summary .................................................................................................................... 7 1 Introduction to the project .............................................................................................. -
Composition, Seasonal Occurrence, Distribution and Reproductive Periodicity of the Marine Rhodophyceae in New Hampshire
University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Spring 1969 COMPOSITION, SEASONAL OCCURRENCE, DISTRIBUTION AND REPRODUCTIVE PERIODICITY OF THE MARINE RHODOPHYCEAE IN NEW HAMPSHIRE EDWARD JAMES HEHRE JR. Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation HEHRE, EDWARD JAMES JR., "COMPOSITION, SEASONAL OCCURRENCE, DISTRIBUTION AND REPRODUCTIVE PERIODICITY OF THE MARINE RHODOPHYCEAE IN NEW HAMPSHIRE" (1969). Doctoral Dissertations. 897. https://scholars.unh.edu/dissertation/897 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. This dissertation has been microfilmed exactly as received 70-2076 HEHRE, J r., Edward Jam es, 1940- COMPOSITION, SEASONAL OCCURRENCE, DISTRIBUTION AND REPRODUCTIVE PERIODICITY OF THE MARINE RHODO- PHYCEAE IN NEW HAMPSHIRE. University of New Hampshire, Ph.D., 1969 Botany University Microfilms, Inc., Ann Arbor, M ichigan COMPOSITION, SEASONAL OCCURRENCE, DISTRIBUTION AND REPRODUCTIVE PERIODICITY OF THE MARINE RHODOPHYCEAE IN NEW HAMPSHIRE TV EDWARD J^HEHRE, JR. B. S., New England College, 1963 A THESIS Submitted to the University of New Hampshire In Partial Fulfillment of The Requirements f o r the Degree of Doctor of Philosophy Graduate School Department of Botany June, 1969 This thesis has been examined and approved. Thesis director, Arthur C. Mathieson, Assoc. Prof. of Botany Thomas E. Furman, Assoc. P rof. of Botany Albion R. Hodgdon, P rof. of Botany Charlotte G. -
758 the Ultrastructure of an Alloparasitic Red Alga Choreocolax
PHYCOLOGIA 12(3/4) 1973 The ultrastructure of an alloparasitic red alga Choreocolax polysiphoniae I PAUL KUGRENS Department of Botany and Plant Pathology, Colorado State University, Fort Collins, Colorado 80521, U.S.A. AND JOHN A. WEST Department of Botany, University of California, Berkeley, California 94720, U.S.A. Accepted June 18, 1973 An alloparasite, Choreocolax polysipiloniae, apparently represents one of the most evolved parasitic red algae. Chlo�oplasts are highly redu�ed and consist of dOl!ble membrane limited organelles lacking any inter nal thylako!� developmen!. The unInucleate cells have thick walls, an absence of starch in cortical cells and larg� quantIties of starch In meduII ary cells. Host-para�ite connections are made by typical red algal pit con . nectIOns. G.eneral effects of t�e InfectIOn on the host .Include cell hypertrophy, decrease in floridean starch granules, dispersed cytoplasmiC matrIces, and contorsJOn of chloroplasts. Phycologia, 12(3/4): 175-186, 1973 Introduction of the host, Cryptopleura. Her decision was The paraSItIc red algae constitute a unique based on the similarity in reproductive struc 1?irou of organisms about which surprisingly tures between the host and parasite, and she � suggested bacteria as causal agents for such lIttle IS known, although their distinctive nature . has been recognized since the late nineteenth proliferatIons. Chemin (1937) also indicated century. There are approximately 40 genera, that bacteria might be causal agents since bac unknown numbers of species, and all are ex teria were isolated from surface-sterilized thalli clusively florideophycean, belonging to all of Callocolax neglectus. Observations on Lobo orders except the Nemaliales. -
Organellar Genome Evolution in Red Algal Parasites: Differences in Adelpho- and Alloparasites
University of Rhode Island DigitalCommons@URI Open Access Dissertations 2017 Organellar Genome Evolution in Red Algal Parasites: Differences in Adelpho- and Alloparasites Eric Salomaki University of Rhode Island, [email protected] Follow this and additional works at: https://digitalcommons.uri.edu/oa_diss Recommended Citation Salomaki, Eric, "Organellar Genome Evolution in Red Algal Parasites: Differences in Adelpho- and Alloparasites" (2017). Open Access Dissertations. Paper 614. https://digitalcommons.uri.edu/oa_diss/614 This Dissertation is brought to you for free and open access by DigitalCommons@URI. It has been accepted for inclusion in Open Access Dissertations by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. ORGANELLAR GENOME EVOLUTION IN RED ALGAL PARASITES: DIFFERENCES IN ADELPHO- AND ALLOPARASITES BY ERIC SALOMAKI A DISSERTATION SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN BIOLOGICAL SCIENCES UNIVERSITY OF RHODE ISLAND 2017 DOCTOR OF PHILOSOPHY DISSERTATION OF ERIC SALOMAKI APPROVED: Dissertation Committee: Major Professor Christopher E. Lane Jason Kolbe Tatiana Rynearson Nasser H. Zawia DEAN OF THE GRADUATE SCHOOL UNIVERSITY OF RHODE ISLAND 2017 ABSTRACT Parasitism is a common life strategy throughout the eukaryotic tree of life. Many devastating human pathogens, including the causative agents of malaria and toxoplasmosis, have evolved from a photosynthetic ancestor. However, how an organism transitions from a photosynthetic to a parasitic life history strategy remains mostly unknown. Parasites have independently evolved dozens of times throughout the Florideophyceae (Rhodophyta), and often infect close relatives. This framework enables direct comparisons between autotrophs and parasites to investigate the early stages of parasite evolution. -
Variation in a Host-Epiphyte Relationship Along a Wave Exposure Gradient*
MARINE ECOLOGY PROGRESS SERIES Vol. 77: 271-278. 1991 Published November 26 Mar. Ecol. Prog. Ser. l Variation in a host-epiphyte relationship along a wave exposure gradient* Phillip S. ~evin',A. C. at hie son^ ' Department of Zoology, and Department of Plant Biology and the Jackson Estuarine Laboratory, University of New Hampshire, Durham, New Hampshire 03824, USA ABSTRACT The red alga Polysiphonia lanosa (L ) Tandy is an obligate epiphyte that primarily occurs on the fucoid brown algal basiphyte Ascophyllum nodosum (L) Le Jolis In the present study we examine how epiphytic interactions between P lanosa and A nodosum vary along a wave exposure gradient within the southern Gulf of Maine, USA P lanosa was most dense on protected shores, however because the stature of P lanosa was greater on exposed than on sheltered shores, greater biomass occurred In exposed habitats Epiphytlc P lanosa pnmanly attached to inlured vegetative bssue at exposed sites, while ~tsoccurrence was primarily receptacular at sheltered sites A significantly stronger correlation was found between host receptacle abundance and epiphyte abundance at a protected low than an exposed site As a result, the distribution of epiphytes along the host S stlpe vanes at different sites We suggest that changes in the distribution and abundance of P lanosa across this wave exposure gradient are highly influenced by vanations in the distribution and persistence of suitable attachment sites on the host plant Because both the quantity and quality of attachment sites vanes wth exposure, we hypothesize that d~fferentprocesses limit or determ~neP lanosa populations in different locations In protected sites P lanosa may be limited by the presence of adequate substrata (inlured bssue and lateral pits) where successful recruitment may occur By contrast at exposed sites the supply of P lanosa sporelings, rather than quantity of appropnate substrata, may limlt population size INTRODUCTION ment and recruitment (Gonzales & Goff 1989, Pearson & Evans 1989, 1990). -
The Shetland Isles: Long-Term Observations on the Subtidal Marine Flora
THE SHETLAND ISLES: LONG-TERM OBSERVATIONS ON THE SUBTIDAL MARINE FLORA IIAN TITTLEY & WILLIAM F. FARNHAM T~Y,I. & W.F. FARNHAM.2001. The Shetland Isles: Long-term observations on the subtidal marine flora. Arquipklago. Life and Marine Sciences. Supplement 2 (Part B): 1-17. Ponta Delgada. ISSN 0873-4740. The marine algal flora of Sullom Voe, Shetland, has been surveyed on three occasions in twenty years (1973, 1983, 1993). To date 281 species have been recorded in Shetland, of which 175 species occur in Sullom Voe. The subtidal vegetation of the outer part of the voe is characterised by forest formations of the perennial kelp Lantinaria hyperborea on bedrock and a species-rich epinora on stipes and holdfasts. This community was stable with time despite the wave-exposed conditions there. The subtidal vegetation of the inner, sheltered, voe with a sea-bed of sediment, stone and shell, was characterised by the canopy- forming annual Lantinaria saccharina / longicruris. Comparison of survey results revealed this canopy and associated subflora communities to vary in abundance and extent with time. Ian Tittley (e-mail: [email protected]) Department of Botany, The Natural History Museum, London SW7 5BD. UK - Williant F. Farnham, Institute of Marine Sciences, University of Portsmouth, Porrsntouth P049 9LY, UK INTRODUCTION Although accounts of the algal flora of the Shetlands go back almost two centuries (e.g. Shetland is an archipelago of about 100 islands in EDMONSTON1809), studies have been sporadic the Atlantic Ocean lying between 60" and 61°N, and key works are those of B~RGESEN(1903a, b), 170 km north of mainland Scotland and 300 km B~RGESEN& J~NSSON(1905), DIXON (1963).