title: Salinity fluctuation of the brine discharge affects growth and survival of the seagrass Cymodocea nodosa.
abstract: The increase of seawater desalination plants may affect seagrasses as a result of its hypersaline effluents. There are some studies on the salinity tolerance of seagrasses under controlled laboratory conditions, but few have been done in situ. To this end, Cymodocea nodosa shoots were placed during one month at four localities: two close to a brine discharge; and the other two not affected by the discharge, and this experiment was repeated four times. The results obtained showed a decrease in growth and an increased mortality at the localities affected by the brine discharge. An increase was detected in the percentage of horizontal shoots in respect to vertical shoots at the impacted localities. It is probably that not only the average salinity, but also the constant salinity fluctuations and slightly higher temperatures associated with the brine that may have caused physiological stress thus reducing C. nodosa growth and survival.
authors.affiliation: Universidad de Alicante, Departamento de Ciencias del Mar y Biología Aplicada, Spain. Electronic address: aurora.garrote@ua.es.
authors.forename: A
authors.initials: A
authors.lastname: Garrote-Moreno
authors.affiliation: Universidad de Alicante, Departamento de Ciencias del Mar y Biología Aplicada, Spain.
authors.forename: Y
authors.initials: Y
authors.lastname: Fernández-Torquemada
authors.affiliation: Universidad de Alicante, Departamento de Ciencias del Mar y Biología Aplicada, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Sánchez-Lizaso
mesh_terms: D035961:Alismatales / Q000254:growth & development; D054712:Salinity; D055049:Salt Tolerance; D012492:Salts; D012623:Seawater; D013312:Stress, Physiological; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D012492:Salts; D014874:Water Pollutants, Chemical; C017082:brine
keywords: Brine discharge; Cymodocea nodosa; Salinity fluctuations; Seagrass growth