"The present study identified and quantified dinoflagellate cysts in surface sediments from three Mediterranean lagoons. Sediment samples were recovered from 11 stations in May 2009 at Cabras Lagoon, eight stations in May 2010 at Corru S'Ittiri Lagoon, and five stations in May 2011 at Santa Giusta Lagoon. Fifty-three dinoflagellate cyst morphotypes were identified. Sixteen species represent first reports for the lagoons, and two are new records for the Mediterranean Sea. Moreover, a new Scrippsiella species was discovered in Cabras. Seven harmful algal species were identified, primarily belonging to the potentially toxic genus Alexandrium. Total cyst abundance, number of morphotypes, and assemblages varied among lagoons, and a degree of heterogeneity was also detected within lagoon. In addition, each lagoon showed a distinct morphotype composition. Cabras and Santa Giusta cyst assemblages were characterised by morphotypes belonging to the autotrophic genus Scrippsiella, whereas Corru S'Ittiri assemblages showed dominance of heterotrophic morphotypes, including Protoperidinium cf tricingulatum. Differentiation among lagoons was also evident according to environmental conditions. Salinity proved to be a fundamental variable in determining total cyst abundance, morphotype number and composition. This study was among the first to examine dinoflagellate cyst composition in coastal lagoons, especially from the Mediterranean region, and contributed data that increased our knowledge of cyst-producing dinoflagellates in these environments."

Dinoflagellate Cyst Assemblages in Surface Sediments from Three Shallow Mediterranean Lagoons (Sardinia, North Western Mediterranean Sea) / Satta, Cecilia Teodora; Anglès, S; Garcés, E; Sechi, Nicola; Pulina, S; Padedda, Bachisio Mario; Stacca, D; Lugliè, Antonella Gesuina Laura. - (2013), pp. 48-49. ((Intervento presentato al convegno VI EUROLAG & VII LAGUNET Conference tenutosi a Lecce nel 16-19 dicembre.

Dinoflagellate Cyst Assemblages in Surface Sediments from Three Shallow Mediterranean Lagoons (Sardinia, North Western Mediterranean Sea)

SATTA, Cecilia Teodora;SECHI, Nicola;Pulina S;PADEDDA, Bachisio Mario;LUGLIÈ, Antonella Gesuina Laura
2013

Abstract

"The present study identified and quantified dinoflagellate cysts in surface sediments from three Mediterranean lagoons. Sediment samples were recovered from 11 stations in May 2009 at Cabras Lagoon, eight stations in May 2010 at Corru S'Ittiri Lagoon, and five stations in May 2011 at Santa Giusta Lagoon. Fifty-three dinoflagellate cyst morphotypes were identified. Sixteen species represent first reports for the lagoons, and two are new records for the Mediterranean Sea. Moreover, a new Scrippsiella species was discovered in Cabras. Seven harmful algal species were identified, primarily belonging to the potentially toxic genus Alexandrium. Total cyst abundance, number of morphotypes, and assemblages varied among lagoons, and a degree of heterogeneity was also detected within lagoon. In addition, each lagoon showed a distinct morphotype composition. Cabras and Santa Giusta cyst assemblages were characterised by morphotypes belonging to the autotrophic genus Scrippsiella, whereas Corru S'Ittiri assemblages showed dominance of heterotrophic morphotypes, including Protoperidinium cf tricingulatum. Differentiation among lagoons was also evident according to environmental conditions. Salinity proved to be a fundamental variable in determining total cyst abundance, morphotype number and composition. This study was among the first to examine dinoflagellate cyst composition in coastal lagoons, especially from the Mediterranean region, and contributed data that increased our knowledge of cyst-producing dinoflagellates in these environments."
Dinoflagellate Cyst Assemblages in Surface Sediments from Three Shallow Mediterranean Lagoons (Sardinia, North Western Mediterranean Sea) / Satta, Cecilia Teodora; Anglès, S; Garcés, E; Sechi, Nicola; Pulina, S; Padedda, Bachisio Mario; Stacca, D; Lugliè, Antonella Gesuina Laura. - (2013), pp. 48-49. ((Intervento presentato al convegno VI EUROLAG & VII LAGUNET Conference tenutosi a Lecce nel 16-19 dicembre.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/155889
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