Himantothallus

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August undefined, 2024

WebbGrowth of Himantothallus grandifolius was measured in situ for 32 d during late summer in Admiralty Bay, King Georg Island, Antarctica. Plants grew at a mean rate of 6.0 mm d … Webb14 jan. 2008 · Abstract. The diversity of specialized cell types (‘complexity’) is estimated for a wide range of multicellular organisms. Complexity increases with size, indep

δ15N and δ13C Measurements of Antarctic Peninsula Fauna: …

WebbSimilar Items. Photoinhibition of photosynthesis in Antarctic lichen Usnea antarctica. I. Light intensity- and light duration-dependent changes in functioning of photosystem II by: Barták, Miloš, et al. Published: (2012) ; Photosynthetic characteristics of phytoplankton off Adelie Land, Antarctica, during the austral summer by: Toru Hirawake, et al. Published: (2000) WebbEnkelt hantera din personliga samling - Logga in. W liesbeth lecompte

Gastropod assemblages associated with Himantothallus …

WebbBiology Glossary (e.g. epibenthic) Largest known blades, 8 m in length and 1 m in width (Ref. 26875 ). Minimum depth from Ref. 116836. Found in isolated patches in the infra-littoral zone down to a depth of 30 m (Ref. 26875 ). WebbHimantothallus grandifolius Taxonomy ID: 62318 (for references in articles please use NCBI:txid62318) current name. Himantothallus grandifolius. NCBI BLAST name: … Webb14 apr. 2010 · However, polychaete assemblages have also been found associated to holdfasts of the brown alga Himantothallus grandifolius in more exposed areas of … liesbeth lejon

Size and complexity among multicellular organisms

Photosynthesis of marine macroalgae in ice-covered and ice-free ...

Webb25 okt. 1996 · For example, Himantothallus grandifolius and Ascoseira mirabilis, exhibit increased P^, values in distal regions of the lamina. This feature is related to the presence of an intercalary meristem which governs the biomass allocation and photophysiological functions (Drew and Hastings, 1992; Gez et al., 1995a,b). WebbThere are few data reported on radionuclide contamination in Antarctica. The aim of this paper is to report 137Cs, 90Sr and 238,239+240Pu and 40K activity concentrations measured in biological samples collected from King George Island (Southern Shetlands, Antarctica), mostly during 2001–2002. The samples included: bones, eggshells and … liesbeth leferinkWebb23 jan. 2024 · Morphology and taxonomy of Himantothallus (including Phaeoglossum and Phyllogigas), an Antarctic member of the Desmarestiales (Phaeophyceae). Journal of Phycology, 17, 15-29 Moe & Silva 1981 Moe, R.L., Silva, P.C., 1983. Morphological and taxonomic studies of ... liesbeth levy

"Webb1 aug. 2015 · Near Anvers Island, four species of large brown algae (Desmarestia antarctica, D. menziesii, D. anceps, and Himantothallus grandifolius) can constitute up to 75% of the overall percent cover and biomass (Amsler et al., 1995). Another species, Ascoseira mirabilis, has also been known to occur in great abundance on the Peninsula … " - Himantothallus

Himantothallus

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Webb10 juni 1977 · The discovery of embryonic stages of the common large Antarctic brown seaweed Himantothallus has led to the conclusion that this plant, hitherto assigned equivocally to the Laminariales (kelps), is a member of the Desmarestiales. Moreover, field study of a large sample of Himantothallus and two othe … WebbMedia in category "Himantothallus grandifolius" The following 2 files are in this category, out of 2 total. Natural history (1907) (20138052273).jpg 2,496 × 3,227; 1,000 KB

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Webb31 aug. 2024 · Himantothallus and Phaeurus extracts both reversed 0.1 μg/mL LPS-induced permeability at 48 h and 72 h (Figure 6 b). We could not observe spontaneous TEER increase in HaCaT cells , so we used fluorescein isothiocyanate (FITC)-labeled dextran flux to assess the barrier integrity of those cells. As shown ... Webb4 maj 2024 · This study documents the abundance and species composition of gastropod assemblages on the two largest, blade-forming Antarctic macroalgae, Himantothallus …

Webb15 mars 2024 · One of the three most important macroalgae in terms of overstory cover, Himantothallus grandifolius, forms huge blades that can carpet the benthos. Field … WebbHimantothallus grandifolius, a giant Antarctic brown seaweed. Its blades can grow to over 14 m long and well over half a meter wide. As you see in the video,...

WebbHimantothallus grandifolius (Q29533000) From Wikidata. Jump to navigation Jump to search. species of Phaeophyceae. edit. Language Label Description Also known as; English: Himantothallus grandifolius. species of Phaeophyceae. Statements. instance of. taxon. 0 references. taxon name. Himantothallus grandifolius. 0 references. Webb21 maj 2024 · Bacterial communities of Antarctic marine macroalgae remain largely underexplored in terms of diversity and biotechnological applications. In this study, three Antarctic subtidal macroalgae (Himantothallus grandifolius, Pantoneura plocamioides and Plocamium cartilagineum), two of them endemic of Antarctica, were investigated as a …

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WebbBoth the number of species and macroalgal biomass were low compared with sub-Antarctic regions. The vertical zonation found was: an ice-abraded zone characterized by Iridaea cordata, a zone 5 to 14 m depth dominated by Desmarestia anceps and Desmarestia menziesii and a zone 15 to 25 m characterized by Himantothallus grandifolius. liesbeth list youtube liesbeth lippensWebbHimantothallus Name Synonyms Phaeoglossum Skottsberg, 1907 Phyllogigas Skottsberg, 1907 Homonyms Himantothallus Skottsberg, 1907 Bibliographic … liesbeth limboWebbKEY WORDS: Himantothallus grandifolius Laminaria solidungula Nitrogen assimilation • Algae Antarctic • Arctic INTRODUCTION High-latitude marine environments are charac terised by low and almost constant water temperatures (Drew & Hastings 1992, Sellman et al. 1992), and polar endemic algae exhibit adaptations which allow them to liesbeth lofWebbPhyllogigas and Himantothallus Antarctic Phaeophyceae C. SKOTTSBERG and M. N E U S H U L Marine Botanical Institute, University of Gothenburg, Sweden, and Botany Department, University o£ Washington, Seattle, Wash., U.S.A. With 3 figures Received: April, i, 1960 In April, 1905, Anthony and Ethel S. Gepp (i) published a list o£ Antarctic … liesbeth libbersWebbThe brown macroalgae Himantothallus grandifolius (A & E Gepp) Zinova is an eukaryotic organism typically found in marine environment with geographical distribution in the Antarctic islands and subantarctic regions, being the prevalent species in regions such as the Potter Cove [12]. A recent study found the percentage distri- liesbeth limWebbThe polychaete community associated with holdfasts of the brown alga Himantothallus grandifolius in Admiralty Bay has been studied. It is the first study of its kind in this area and only the second in the Antarctic. Samples were collected in the summer season of 1979/1980 from a depth range of 10-75 m. mcmechen post office