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First record of the sea anemone Diadumene lineata (Verrill 1871) associated to Spartina alterniflora roots and stems, in marshes at the Bahia Blanca estuary, Argentina |
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| Authors: | Lucas M Molina Macarena S Valiñas Paula D Pratolongo Rodolfo Elias Gerardo M E Perillo |
| Institution: | 1. Instituto Argentino de Oceanografía, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC 804, B8000FWB, Bahia Blanca, Argentina 2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina 3. Laboratorio de Ecología, Depto. de Biología (FCEyN), Universidad Nacional de Mar del Plata, CC 573 Correo Central, B7600WAG, Mar del Plata, Argentina 4. Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, 8000, Bahia Blanca, Argentina 5. Departamento de Ciencias Marinas, Universidad Nacional de Mar del Plata, Deán Funes 3350, B 76002 AYL, Mar del Plata, Argentina 6. Departamento de Geología, Universidad Nacional del Sur, San Juan 670, 8000, Bahia Blanca, Argentina |
| Abstract: | We report the occurrence of the orange-striped green anemone Diadumene lineata (Verrill 1871) (=Haliplanella lineata) in salt marshes at the Bahía Blanca Estuary for the first time in August 2005. We also found this species attached to roots and stems of Spartina alterniflora, an association that has never been registered before. After their determination, sampling was performed during a year to evaluate seasonal abundance of this sea anemone. Results showed that D. lineata was present through the whole year, indicating the existence of a stable population. All individuals sampled were found attached to roots or stems of S. alterniflora, with the higher abundances detected in summer. Further studies are necessary to precise the potential effects of this exotic sea anemone on salt marsh communities. |
| Keywords: | Diadumene lineata Haliplanella Sea anemone Spartina alterniflora Salt marshes Bahía Blanca estuary |
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