Liverpool: University Press. Royal Botanic Garden Edinburgh Herbarium (E). Phycology and heavy-metal pollution. D., Houston, M. & Montgomery, H.A.C., 1985. Lotze, H.K., B. Occurrence dataset http://www.aphotomarine.com/index.html Accessed via NBNAtlas.org on 2018-10-01. Ulva intestinalis is a conspicuous bright grass-green seaweed, consisting of inflated irregularly constricted, tubular fronds that grow from a small discoid base. Native Range: Ulva intestinalis is a relatively cosmopolitan species known to form blooms in a diverse range of habitats around the world (Cummins et al. Occurrence dataset: https://doi.org/10.15468/mopwow accessed via GBIF.org on 2018-10-01. Bulletin of the Iraq Natural History Museum 8(2): 163-172. Canadian Field Naturalist 98(2): 198-208. However, populations are greatly reduced or possibly no longer present in the Wolf Creek drainage due to decreased salinity (Marcus et al. Fronds are typically unbranched. Occurrence dataset: https://doi.org/10.15468/erweal accessed via GBIF.org on 2018-09-27. Guiry, M.D. A particular species of algae, Ulva intestinalis, thrives in the intertidal zone of Nahant, Massachusetts. Species within the genus Ulva are difficult to identify. 1987. 'Torrey Canyon'. Great Lakes region nonindigenous occurrences, the earliest and latest observations in each state/province, and the tally and names of HUCs with observations†. & Woodhead, P., 1975. Brinsley, and F.J. Staff. American Journal of Botany 89(11): 1756-1763. 1996. Nitrogen enrichment ameliorates the negative effects of reduced salinity on green macroalga Enteromorpha intestinalis. However, if environmental factors, such as salinity are taken into account, branching can be used to identify the great majority of thalli correctly (Blomster et al., 1998). GLERL 4840 S. State Rd., Ann Arbor, MI 48108-9719 (734) 741-2235 Forest, and B. Shero. The influence of UV-B radiation on the reproductive cells of the intertidal macroalga, Enteromorpha intestinalis. Occurrence dataset https://www.nmni.com/CEDaR/CEDaR-Centre-for-Environmental-Data-and-Recording.aspx accessed via NBNAtlas.org on 2018-09-25. Esch & R.W. G.W. Ulva intestinalis Ulva californica 1. London & Frome: Butler & Tanner Ltd. Baeck, S., Lehvo, A. Such a seed bank allowed U. intestinalis to begin growing two months earlier than many native species, enabling it to escape herbivory and nutrient competition. Establishment of freshwater biota in an inland stream following reduction of salt input. Centre for Environmental Data and Recording, 2018. Kent Wildlife Trust, 2018. In Ohio, U. intestinalis has been recorded from shady regions of the Portage River, where there is almost no flow in shallow bedrock pools created by upwelling through limestone faults (Taft 1964). & Donkin, P., 1997. Linnaeus was right all along: Ulva and Enteromorpha are not distinct genera. Royal Botanic Garden Edinburgh, 2018. Adaptation to salinity stress in populations of Enteromorpha intestinalis (L.) Link. Cohen, R.A., and P. Fong. Occurance dataset: http://www.sewbrec.org.uk/ accessed via NBNAtlas.org on 2018-10-02. Several hundred individuals of Tigriopus brevicornis have been observed in a single thallus of Ulva intestinalis (McAllen, 1999). Epibionts like Ulva can also exert increased drag on snails living in high flow conditions, causing them to invest more energy in foot muscles and less in growth (Wahl 1996). Why is Ulva intestinalis the only macroalga inhabiting isolated rockpools along the Swedish Atlantic coast? The list of references for all nonindigenous occurrences of Ulva (Enteromorpha) intestinalis are found here. Fife Nature Records Centre, 2018. Furthermore, Romano et al. Lipids and fatty acids from Ulva intestinalis from estuaries of the Caspian basin (Elton Region) September 2012; Chemistry of Natural Compounds 48(4) DOI: 10.1007/s10600-012-0305-2. Occurrence dataset: https://doi.org/10.15468/v6mt0g accessed via GBIF.org on 2018-10-01. none of the eulittoral zone material was able to regenerate in freshwater or concentrated seawater, whilst littoral fringe and rock pool material was able to do so. 2004). Journal of Experimental Marine Biology and Ecology 254(1): 53-69. Nitrogen enrichment ameliorates the negative effects of reduced salinity on the green macroalga Enteromorpha intestinalis. Marine Pollution Bulletin, 6, 189-192. Growth rate (2020) Effect of geographical location on the variation in products formed from the hydrothermal liquefaction of Ulva Zimmerman. Plant species diversity in a marine intertidal community, importance of herbivore food preference and algal competitive abilities. The reduction of pollution and nutrient run-off could decrease the viable habitat for U. intestinalis. Ulva intestinalis viewed under magnification. Applied Phycology: Vol. 80-92. Secor. Ulva intestinalis Large green lumps of Ulva intestinalis floating among other brown algae in Brofjorden Ulva intestinalis is a green alga in the family Ulvaceae, known by the common names sea lettuce, gutweed and grass kelp. Although growth is typically positively related to salinity, many populations can survive and grow in freshwater conditions, and the negative effects of low salinity can be offset by increased nutrient concentrations. Mills, E.L., J.H. The thalli of the seaweed lost their tubular shape, spread, and formed unattached monostromatic sheets. Branching may be inversely related to salinity. Individual cells are often relatively round or ovoid but sometimes may be rectangular or polygon-shaped. In Thermal Ecology II, (eds. Moss, B.L. Like other members of the genus, Ulva intestinalis is a summer annual, decaying and forming masses of bleached white fronds towards the end of the season. Volume 2. (ed. & Moss, B.L., 1979. Marine Ecology Progress Series 256: 63-74. Finally, as previously mentioned, the population originally found near a salt plant at Wolf Creek, New York (Muenscher 1927) has decreased and may no longer even be present, probably due to decreased salinity (Marcus et al. , lactuca being Latin for `` lettuce '' observations in each state/province, A.. Environmental impact in the Wolf Creek drainage due to decreased salinity ( Marcus et al http //www.aphotomarine.com/index.html... Or ovoid but sometimes may be rectangular or polygon-shaped asexual zoospore-producing sporophyte A. Lehvo, and.... 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