1987. Swarmer release and distribution of life-cycle phases of Enteromorpha intestinalis Chlorophyta in relation to environmental factors. (2020) Effect of geographical location on the variation in products formed from the hydrothermal liquefaction of Ulva & Fish, S., 1996. 2000, Cummins et al. In Proceedings of the third international congress on marine corrosion and fouling (ed. Furthermore, some marine forms of U. intestinalis are more difficult for grazers to handle and ingest than species with more frond structure (Watson and Norton 1985). The effects of some trace metals on marine phytoplankton. Occurrence dataset: https://doi.org/10.15468/mopwow accessed via GBIF.org on 2018-10-01. & Searles, R.B., 1980. 2004. Chlorophyta. Propagule banks, herbivory and nutrient supply control population development and dominance patterns in macroalgal blooms. U. prolifera samples were collected in June 2018 from Pyropia rafts (33. 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. Potential: Ulva intestinalis is one of the species that contributes to the 109 kg of seaweed removed every year from recreational beaches in France (Blomster et al. Reed, R.H. & Russell, G., 1979. 1998. Grows in shallow, brackish and salty waters and is especially common in nutrient-rich areas. 1984). 1, No. Little, C. & Kitching, J.A., 1996. Occurrence dataset: http://www.ericnortheast.org.uk/home.html accessed via NBNAtlas.org on 2018-09-38, Fenwick, 2018. Occurrence dataset: https://doi.org/10.15468/iou2ld accessed via GBIF.org on 2018-10-01. Royal Botanic Garden Edinburgh, 2018. Abstract. Nitrogen enrichment ameliorates the negative effects of reduced salinity on green macroalga Enteromorpha intestinalis. Ulva intestinalis provides shelter for the orange harpacticoid copepod, Tigriopus brevicornis, and the chironomid larva, Halocladius fucicola (McAllen, 1999). This information is preliminary or provisional and is subject to revision. Hoffmann, A.J., and P. Camus. British Phycological Journal, 14, 43-57. Estuaries 27(2): 209-216. Martins, I., J.M. Outer Hebrides Biological Recording, 2018. Available from: https://www.nbnatlas.org. Fronds may be 10-30 cm or more in length and 6-18 mm in diameter, the tips of which are usually rounded. Sporophytes usually occur over a wider temperature and salinity range than gametophytes. For instance, Ulva intestinalis and Ulva compressa (as Enteromorpha) are two distinct, genetically divergent and reproductively isolated species (Blomster et al., 1998). & Depledge, M.H., 1998. Marcus, B.A., H.S. Burrows, E.M., 1991. Mass occurrence of unattached Enteromorpha intestinalis on the Finnish Baltic Sea coast. Taft, C.E. & Depledge, M.H., 1999. Collins pocket guide. eulittoral zone material showed decreased percentage regeneration in all salinities (dilute: 0, 4.25, 8.5, 17 & 25.5 psu, full: 34 psu and concentrated seawater: 51, 68, 95, 102 & 136 psu) except 34 psu, when compared to littoral fringe populations of. Fong, P., K.E. Smith, J.E. Sporophytes are often also capable of reproducing over longer time periods than gametophytes (Cordi et al. Novel morphology in Enteromorpha (Ulvophyceae) forming green tides. KEY WORDS: marine algae, Ulvarigida, Ulva intestinalis, antimicrobial activity, Algeria INTRODUCTION Faced with escalating multidrug resistance in bacteria and the emergence of new infectious diseases, many ... sampling location or the higher concentrations of extract as demonstrated by several researchers mentioned above. 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