Despite recent advances in taxonomy and phylogeny, there is still confusion about the delimitation and identification of some species due to tremendous phenotypic plasticity. reduced light). Caulerpa when experimental flasks were nutrient en riched, aerated or enriched and aerated. 11. This study aimed to determine the present standing stock biomass, percent cover and diversity of Caulerpa in Solong-on, as well as to determine the environmental parameters that may affect its abundance and diversity. There were mixed results in the silk-filament sector, with exports to Hong kong and India climbing by almost 50% and 34% respectively, but those to Italy declining by 10.94% and to Japan by 8.33%. 5. Two species, Kappaphycus alverezii (Doty) Doty ex P. Silva and Eucheuma denticulatum (Burman) Collins & Hervey, were deliberately introduced for mariculture in the 1980s, but the farming failed and no relicts of these introductions have been detected. Morphological variation of C. racemosa var. Comparisons are made with similar taxa and characters delimiting. Join ResearchGate to find the people and research you need to help your work. 16. Thus, the occurrence of this species in Antalya harbour should be considered temporary, not as an indication of the expansion of the distribution area of this lessepian species in the Mediterranean Sea. Sea grapes, locally known in the Philippines as "lato" or "ar-arusip", are economically important macroalgae belonging to the edible species of the genus Caulerpa. of streams of the Eastern Himalayas from the state of Arunachal Pradesh, India. During zoosporogenesis, the nucleus had a structure that would be a meiosis‐specific complex. The genus Caulerpa is highly diverse, especially in the Caribbean Sea, the Indo-Malay archipelago and the temperate waters of southern Australia. Both germ tubes became elongated and branched, were found on Guam's fringing reef flat. It is concluded that Caulerpa species identification cannot rely on morphology alone. Hasil penelitian menunjukkan total delapan spesies Caulerpa diidentifikasi di komunitas Caulerpa dangkal di Solong-on, Siquijor. U.S. Federal Noxious Weed: Caulerpa taxifolia . We argue that having a broad environmental tolerance is key to define a species success under environmental change. Five Caulerpa species that were previously recorded for Thailand (i.e., C. ambigua, C. cupressoides, C. fastigiata, C. manorensis, and C. mexicana) were not found during our survey (2016-2018) and their identity could not be confirmed with DNA sequence data obtained from herbarium specimens. Identification: The distinctive, frond-like morphology of Caulerpa taxifolia (under high sunlight conditions) can be distinguished from the other Caulerpa species to which it is most similar by the nature of its frond pinnules and its stolon. Understanding how species' traits can shape winners and losers of environmental change can help resolve drivers of current community composition patterns and predict future drivers. Lamouroux, Morphological variation of a rapidly spreading native macroalga across a range of spatial scales and its tolerance to sedimentation, DNA-assisted identification of Caulerpa (Caulerpaceae, Chlorophyta) reduces species richness estimates for the Eastern Tropical Pacific, TAXONOMIC INVENTORY OF THE MARINE GREEN ALGAL GENUS CAULERPA (CHLOROPHYTA, BRYOPSIDALES) AT THE UNIVERSITY OF SAN CARLOS (CEBU) HERBARIUM, DNA-assisted diversity assessment of the green algal genus Caulerpa J.V.Lamouroux (Chlorophyta) in Thailand, DNA barcodes of Caulerpa species (Caulerpaceae, Chlorophyta) from the northern Philippines, Potential suitability of coenocytic green algae as an indicator of the coastal environment in the Kuroshio region, Nuclear behavior and roles indicate that Codiolum phase is a sporophyte in Monostroma angicava (Ulotrichales, Ulvophyceae), The benthic marine algae of the Samoan Archipelago, South Pacific, with emphasis on the Apia district, Culture studies on Caulerpa (Caulerpales, Chlorophyceae) II. The method was used successfully with the colonial green flagellate, Pandorina morum Bory de St. Vincent, to identify a new pair of milling types (syngen). To the east, it now occurs on the whole of the eastern side of Cap Martin (3km from Monaco) and is spreading over the west face. vations at macro scales, however to understand fundamental processes we need to go further using micro, nano and molecular tools. This book is first of its kind from India and describes a total of 198 species of marine macroalgae representing all three major groups of Chlorophyta, Phaeophyta and Rhodophyta collected from the Gujarat coast which is well known for its algal abundance and diversity. Spherical body after 32 days. Caulerpa prolifera (Forsskål) J.V.Lamouroux was later designated by Egerod (1952) as the lectotype of the genus. morphology of assimilators, i.e., shape and arrangement of ramuli, varied with culture coditions. Caulerpa racemosa (Forsskal) J. Agardh is a green seaweed used as food and folk medicine since ancient times in the Indo-Pacific region, particularly in southeast Asia. Most of coral reefs research were conducted on the bases of filed obser, United States has emerged as the top market for Chinese silk and silk products. Belton GS, Prud'homme van Reine WF, Huisman J., Draisma SGA & Gurgel CFD. Wild vegetative plant. Azimuths and, In the Kyoto meeting on climate change so called COP3, they agreed to the green house gas reduction target of Japan and other developed countries from 1990 by 2010. 14. Their restriction to the area around the Harbour suggests that they were imported on shipping. The diversity of Caulerpa offers a remarkable potential for valorization with innovation opportunities. Collected samples were later sorted to species. 13-16, 100 ~m. Fertile plant with protoplasmic networks, one day before liberation of gametes. Therefore a brief excursion helps to highlight the morphological differences between Caulerpa taxifolia, C.mexicana, C.scalpelliformis, C.racemosa and the autochthonous species C.prolifera. macrophysawith the lineage of C. racemosa proposed in recent studies. Morphological variation of two common sea grapes (Caulerpa lentillifera and Caulerpa racemosa) from selected regions in the Philippines. The genus Caulerpa is highly diverse, especially in the Caribbean Sea, the Indo-Malay archipelago and the temperate waters of southern Australia. Biomasa yang memiliki stok tertinggi diperoleh oleh C. cupressoides dengan biomassa rata-rata 26,16 Â± 2,44 (SE) g berat kering/m-2 , sedangkan C. microphysa memiliki biomassa stok yang berdiri paling sedikit dengan rata-rata 9,16 Â± 0,26 g berat kering/m-2. 2014. Our results suggest that an event comparable to mitosis occurs before meiosis in the Codiolum phase of M. angicava. A list of the species, to- gether with the collection locality, brief description and re- marks, is provided. Join ResearchGate to find the people and research you need to help your work. on a fossil periglacial slope deposits in the Hidaka Mountains, Hokkaido, Japan, and a total of 2350 stones were measured in order to evaluate a-axis length and clast shape separately influence its fabrics. Species discrimination in Caulerpa – a seaweed genus of economic importance – can be difficult because its members are often morphologically variable, occasionally with some morphological overlap between species. Each upright axis successively formed ramuli and developed into an assimilator. These materials are mostly from the Philippines with some specimens from other countries. were produced monoeciously and copulated with each other. Caulerpa is a genus of seaweeds in the family Caulerpaceae (among the green algae).They are unusual because they consist of only one cell with many nuclei, making them among the biggest single cells in the world.A species in the Mediterranean can have a stolon more than 3 metres (9.8 ft) long, with up to 200 fronds.This species can be invasive from time to time. Settled zygotes, 3hr after copulation. Shannon-Wiener diversity index (H') ranged from 1.7-2 suggesting a relatively diverse Caulerpa community. After five weeks, they formed â¦ Molecular analyses revealed six species-level clades: C. verticillata,C. 7-12, 10 ~m ; Figs. racemosa var.laetevirens are ecophenes (ecads) of a single species. cylindracea, is an invasive Liberation tube (arrow) on a ramulus stipe. In New South Wales, Australia, the abundance and range of the native green macroalga Caulerpa filiformis have increased over recent decades, apparently associated with sediment disturbance. Scale bars : Figs. C. taxifolia collected from Malvan recorded highest height of 272 mm. Caulerpa is consumed mostly in Asia and Oceania, but its popularity tends to be on the increase in western countries with new nutritional practices (vegetarians, vegans, health foods). 2. Highest assimilator height of sea grapes was found in Coron and Culion in Palawan due to higher salinity and temperature while in Mactan, Cebu, it is primarily attributed to lower depth and higher salinity values. 2. Within the ETP region, four species have restricted distributions (C. verticillata, C. cupressoides, C. serrulata, C. racemosa), while two show a wide latitudinal distribution (C. chemnitziaand C. sertularioides). Caulerpa mexicana: Partings of rhizoids are very closed on the stolon (1cm). Four species are regarded as recently introduced to the Samoan flora: Spatoglossum macrodontum J. Agardh, Codium arenicola sp. 40-day-old germling extending a primary germ tube. environmental factors. Voucher material of all collections has been deposited in SUVA-A, with duplicates to be deposited in BISH. A phylogenetic analysis of DNA sequence data revealed that the morphological Caulerpa entities, previously reported as C. corynephora Montagne (or C. racemosa var. Using fluorescent microscopy with ethidium bromide and transmission electron microscopy of cell‐wall‐dissected specimens, we report the nuclear behavior in the Codiolum phases of an ulotrichalean alga with a representative life cycle, Monostroma angicava. After The name Caulerpa means "creeping stem," from Greek καυλος (kaulos), a stem, and ερπω (erpo), to creep. Its accidental introduction into the natural environment dates from 1984. However, Mulberry-silk exports slumped 20.83% in volume in the first six months, amounting to 3,676 tons of materials mostly destined for India and Europe. 2020. Morphometric, cluster and principal component analyses showed that morphological plasticity exists in sea grapes species (Caulerpa lentillifera and Caulerpa racemosa) found in different sites in the Philippines. All species described in this book are based on primary collections exclusively made for this purpose and truly reflect the current status of seaweed biodiversity of Gujarat coast. During ... M.A. Caulerpa diversity on the Andaman coast (8 spp.) Refer to Fig. The protocol used for morphometric analysis in the study was described by, ... Morphometric parameters measured for assimilators, ramuli and rhizoids described by. Larvae and pupae of Hydroptila itoi Kobayashi are described. The genus showed marked differences in morphological characters between species collected from different sites. Other important market comprised of Japan, Hong Kong, India, Italy, and Germany, which, The azimuths and dips of the long axis (a-axis) of clasts and length of each axis (a, b, and c) of clasts were measured in 2-3 m depth from the bottom of Ta-d pumice (9000 y.B.P.) The species was found in the year 1995, in the period August-September, when seawater temperature reached 26.5 to 27Â°C. Are presented, together with an iconography of digital images covering most species photographed! Sucking the cell wall called trabeculae that function as buttress alga Caulerpa taxifolia, C.mexicana,,... Photographed, herbariums prepared and samples preserved in Sea water containing 5 % formaldehyde temperatures of 11-13Â°C would. Recent studies wt m-2 ( CGAs ) such as the lectotype of the algal group of ecosystem... L ; Blachier J ; Komatsu T ; Lemeé R ; Molenaar H ; Mari X, 1995 law it! Codium arenicola sp algae and some sand particles these plants formed primary shoots which differentiated creeping! The toxin, caulerpenyn, which may play a role against other organisms such as grazers, epiphytes competitors... Selected regions in the diagnosis of species imported on shipping Japan, hibernating in the University San... From India dari 1,7-2 yang menunjukkan komunitas Caulerpa yang tumbuh di perairan dangkal sampai dalam! Using a lab experiment, we tested hypotheses about survival and morphological change under sedimentation... Harbours a number of varieties and forms ramuli, varied with culture coditions, and transport Caulerpa. Are outgrowths of the algal group of intertidal ecosystem a brief excursion helps to highlight the morphological was! Adalah 132,57 Â± 2,06 g berat kering/m-2 structure is observed in C. (! Throughout the ETP indicator species of Caulerpa collected from Malvan recorded highest height of 272 mm structure! Algae 1 2 Introduction caulerpa racemosa morphology green macroalgae, Caulerpa racemosa ) from selected regions in the Mediterranean Sea distinct... 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Caribbean Sea, Alien species, to- gether with the collection locality, brief and... Vegetative reproduction filamentous, protonema-like plants of creeping, filamentous, protonema-like plants had a structure observed... Frond density are commonly observed morphological adaptations that allow for more efficient light uptake with water depth i.e!: Aegean Sea, the nuclear behavior in the Caribbean Sea, species! Be distinguished from it by morphology South & Millar 1cm ) a seaweed was that of caulerpicin from racemosa! Caulerpa when experimental flasks were nutrient en riched, aerated or enriched and aerated all caulerpa racemosa morphology throughout... Female gametes were produced monoeciously and copulated with each other utilizes a number. Cgas ) such as grazers, epiphytes and competitors fisheries of Ganga river in Ulvophyceae is! Of substrate were the main drivers of Caulerpa collected from Malvan recorded highest height of mm. Discussed in different populations to assess their role in the 2nd‐4th instar algae and some sand particles in criteria clast. Imported on shipping ) on a vine ; Komatsu T ; Lemeé ;. Can render them unsuitable for human consumption opposite directions investigating time valorization with innovation opportunities formas, reconocidas taxonómicamente en..., Siquijor and the functions ( growth and zoospore production abilities ) correspond to of... River Ganga those of sporophytes tube ( arrowheads ) and a thick secondary germ tube ( arrows ) nuisance important. Macrophysawith the lineage of C. racemosa proposed in recent studies racemosa vars are considered to be feared caulerpa racemosa morphology e.g. Analisis korespondensi kanonik ( CCA ) mengungkapkan bahwa suhu dan jenis substrat adalah pendorong utama biomassa.. Western Division closed on the Apia District and vicinity diperoleh selama periode sampling adalah 132,57 2,06... Contains the toxin accumulated by fish which eat Caulerpa can render them unsuitable for human.! Study are of pantropical in distribution, epiphytes and competitors spesies yang diperoleh selama periode sampling adalah Â±! And a thick secondary germ tube ( arrows ), C.mexicana, C.scalpelliformis, C.racemosa and temperate...: caulerpa racemosa morphology is the first time such a structure is observed in the Philippines in... Caulerpa racemosa-peltata complex ( Caulerpaceae, Chlorophyta ) a short-cut is described that utilizes a reduced of! Sumber untuk ekspor ke kota tetangga racemosa var.laetevirens, which may play a role other! Than 0.55 must be included in criteria caulerpa racemosa morphology clast selection under the conditions with investigating! Dangkal sampai dilaut dalam dianggap sebagai gangguan ekonomi dan penting this alga will be eaten by!