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Geosciences
Volume 16
Issue 1
10.3390/geosciences16010001
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

First Identification of the Alien Species Mimosina affinis Millet, 1900, in the Tyrrhenian Sea

by
Valentino Di Donato
1,*,
Diana Barra
1,
Flavia Molisso
2,
Marco Sacchi
2,
Giuseppe Aiello
1,
Roberta Parisi
3 and
Luciana Ferraro
2
1
Dipartimento di Scienze della Terra, dell’Ambiente e delle Risorse (DiSTAR), Università degli Studi di Napoli “Federico II”—Complesso di Monte Sant’Angelo (Edificio L) Via Cinthia, 21, 80126 Naples, Italy
2
Istituto di Scienze Marine-Consiglio Nazionale delle Ricerche ISMAR-CNR, Calata Porta di Massa, 80133 Naples, Italy
3
Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy
*
Author to whom correspondence should be addressed.
Geosciences 2026, 16(1), 1; https://doi.org/10.3390/geosciences16010001
Submission received: 7 November 2025 / Revised: 12 December 2025 / Accepted: 16 December 2025 / Published: 19 December 2025
(This article belongs to the Section Climate and Environment)
Versions Notes

Abstract

In recent decades, the Mediterranean Sea has been experiencing faunal changes associated with the impact of biological invasions resulting from the influx of invasive alien species (IAS). During the CNR-ISMAR Carg0222 oceanographic cruise, Mimosina affinis, a benthic foraminifera species of Indo-Pacific origin previously reported in more eastern sectors of the Mediterranean, was detected in the Tyrrhenian Sea, at the seafloor off the Italian coast. The study of benthic foraminiferal assemblages, conducted along with sedimentological analysis of seafloor deposits, allowed to reconstruct the distribution of Mimosina affinis in the investigated area and define its relationship with seabed characteristics. The species is commonly found in samples collected at a water depth not shallower than nine metres, showing a preference for silty fine sand sediments. The abundance of the species, in terms of relative abundance, is higher in biocoenoses than in thanatocoenoses, suggesting that the species is established and actively spreading in the studied area.
Keywords: benthic foraminifera; alien species; Mediterranean; Tyrrhenian Sea benthic foraminifera; alien species; Mediterranean; Tyrrhenian Sea

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MDPI and ACS Style

Di Donato, V.; Barra, D.; Molisso, F.; Sacchi, M.; Aiello, G.; Parisi, R.; Ferraro, L. First Identification of the Alien Species Mimosina affinis Millet, 1900, in the Tyrrhenian Sea. Geosciences 2026, 16, 1. https://doi.org/10.3390/geosciences16010001

AMA Style

Di Donato V, Barra D, Molisso F, Sacchi M, Aiello G, Parisi R, Ferraro L. First Identification of the Alien Species Mimosina affinis Millet, 1900, in the Tyrrhenian Sea. Geosciences. 2026; 16(1):1. https://doi.org/10.3390/geosciences16010001

Chicago/Turabian Style

Di Donato, Valentino, Diana Barra, Flavia Molisso, Marco Sacchi, Giuseppe Aiello, Roberta Parisi, and Luciana Ferraro. 2026. "First Identification of the Alien Species Mimosina affinis Millet, 1900, in the Tyrrhenian Sea" Geosciences 16, no. 1: 1. https://doi.org/10.3390/geosciences16010001

APA Style

Di Donato, V., Barra, D., Molisso, F., Sacchi, M., Aiello, G., Parisi, R., & Ferraro, L. (2026). First Identification of the Alien Species Mimosina affinis Millet, 1900, in the Tyrrhenian Sea. Geosciences, 16(1), 1. https://doi.org/10.3390/geosciences16010001

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