Living benthic foraminiferal assemblages were investigated at 22 marine stations in front of the Volturno River mouth (Gulf of Gaeta, central Tyrrhenian Sea), during 3-years survey (2012–2014). The results were compared with the oceanographic data recorded at the same sites, to highlight the ecology of the main dominant species and the relationship between the community structures and the environmental variables (turbidity, dissolved oxygen content, salinity, temperature, and runol). The living assemblage, analyzed in the top 1fcm of sea ioor, was characterized by three dominant species (Ammonia tepida, Bulimina elongata, and Rectuvigerina phlegeri) during all the sampling periods. Correlation analysis identiÂed turbidity, runol, and oxygen as the main environmental factors iniuencing living foraminiferal assemblages. Ammonia tepida and Rectuvigerina phlegeri showed opportunistic behaviour in response to turbidity, oxygen, and salinity values. No signiÂcant correlation was recorded between Bulimina elongata and the environmental parameters, testifying the capability of this species to adapt to dilerent environmental conditions. The occurrence and distribution of these species provided useful information about coastal dynamics and sediment transport, and our results conÂrmed them as reliable proxies of coastal water column turbidity and Volturno river basin runol.
Live benthic foraminifera from the Volturno River mouth (central Tyrrhenian Sea, Italy) / Ferraro, L; Bonomo, S; Alberico, I; Cascella, A; Giordano, L; Lirer, F; Vallefuoco, M. - In: ATTI DELLA ACCADEMIA NAZIONALE DEI LINCEI. RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI. - ISSN 1720-0776. - 29:(2018), pp. 559-570. [10.1007/s12210-018-0712-9]
Live benthic foraminifera from the Volturno River mouth (central Tyrrhenian Sea, Italy)
Lirer F;
2018
Abstract
Living benthic foraminiferal assemblages were investigated at 22 marine stations in front of the Volturno River mouth (Gulf of Gaeta, central Tyrrhenian Sea), during 3-years survey (2012–2014). The results were compared with the oceanographic data recorded at the same sites, to highlight the ecology of the main dominant species and the relationship between the community structures and the environmental variables (turbidity, dissolved oxygen content, salinity, temperature, and runol). The living assemblage, analyzed in the top 1fcm of sea ioor, was characterized by three dominant species (Ammonia tepida, Bulimina elongata, and Rectuvigerina phlegeri) during all the sampling periods. Correlation analysis identiÂed turbidity, runol, and oxygen as the main environmental factors iniuencing living foraminiferal assemblages. Ammonia tepida and Rectuvigerina phlegeri showed opportunistic behaviour in response to turbidity, oxygen, and salinity values. No signiÂcant correlation was recorded between Bulimina elongata and the environmental parameters, testifying the capability of this species to adapt to dilerent environmental conditions. The occurrence and distribution of these species provided useful information about coastal dynamics and sediment transport, and our results conÂrmed them as reliable proxies of coastal water column turbidity and Volturno river basin runol.File | Dimensione | Formato | |
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