AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Anadara transversa [WoRMS] | |
Authority | (Say, 1822) | |
Family | Arcidae | |
Order | Arcida | |
Class | Bivalvia | |
Phylum | Mollusca | |
Synonym (?) | Anadara demiri (Piani, 1981) Arca amygdalum (Demir, 1977) Scapharca demiri (Piani, 1981) |
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Sub-species level (?) | Not entered |
Native origin (?) | Country: USA --> LME: 5. Gulf of Mexico; LME sub-region: Florida Strait References: Lodola A, Savini D, Mazziotti C, Occhipinti-Ambrogi A (2011) First record of Anadara transversa (Say, 1822) (Bivalvia: Arcidae) in Sardinian waters (NW Tyrrhenain Sea). Biol Mar Medit 18(1): 256-257. Comments: Anadara transversa (Say, 1822) has been thought to be of Indo-Pacific origin for a long time because it was first identified as Arca amygdalum (Demir, 1977) and then reclassified as Anadara demiri (Piani, 1981), a species native to the China Sea. Rinaldi (2006) was the first author to underline many similarities between A. demiri and A. transversa. Recent morphological and molecular analyses (Albano et al., 2009) revealed that A. demiri is closely related to A. transversa, a common species of the eastern coasts of North America. A. demiri is hence considered a junior synonym of A. transversa and the origin of the Mediterranean population has to be searched in the southern range of this species (i.e. Florida, Gulf of Mexico). |
Life form / Life stage (?) |
References (not structured): Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Sociability / Life stage (?) |
References (not structured): Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Reproductive frequency (?) | Iteroparous References (not structured): Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Reproductive type (?) | Sexual References: Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Developmental trait (?) | Planktotrophy Spawning References: Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Characteristic feeding method / Life stage (?) |
References (not structured): Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 |
Mobility / Life stage (?) |
References (not structured): Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 Comments: Numerous features make it a strong competitor among which is the ability, retained into adult life, of attaching, by means of byssus threads to all kinds of hard substrata, particularly to other live molluscs such as the gastropod Aporrhais pespelecani and the bivalves Anadara inaequivalvis and Chamelea gallina. |
Salinity tolerance range (?) | Venice system: 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Smithsonian Environmental Research Center. (n.d.). Anadara transversa. Retrieved from https://invasions.si.edu/nemesis/species_summary/79340 Comments: Found in sandy and muddy subtidal bottoms, in polyhaline-euhaline salinities. |
Habitat modifying ability potential (?) | OLD VALUE References: Morello E.B., Solustri C., & Froglia C., 2004. The alien bivalve Anadra demiri (Arcidae): a new invader of the Adriatic Sea, Italy. Journal of Marine Biological Association of the UK. 84: pp 1057-1064 Comments: --/OLD VALUE/-- Ecosystem engineer (Anna) Seasonal habitat former (Anna) Numerous features make it a strong competitor among which is the ability, retained into adult life, of attaching, by means of byssus threads to all kinds of hard substrata, particularly to other live molluscs such as the gastropod Aporrhais pespelecani and the bivalves Anadara inaequivalvis and Chamelea gallina. |
Toxicity / Life stage (?) | Unknown Comments: Not available. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Not known Comments: Not available. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | Yes Comments: Assessed by the COMPLETE project experts (2021), included in target species list. |
Association with vessel vectors (?) | Ballast waters References: Lodola A, Savini D, Mazziotti C, Occhipinti-Ambrogi A (2011) First record of Anadara transversa (Say, 1822) (Bivalvia: Arcidae) in Sardinian waters (NW Tyrrhenain Sea). Biol Mar Medit 18(1): 256-257. Comments: The spotty distribution of A. transversa within the Mediterranean suggests a “stepping stone” colonization by different vectors of introduction. In the case of Olbia harbour, the more likely vector is the transfer from the northern Adriatic as non target species within mussel clams, which are reared in the numerous farms placed near the harbour entrance. Also the intense shipping traffic of both fishing and commercial vessels between Olbia harbour and the mainland should be considered as a possible vector as ship fouling or as planktonic larvae in the ballast waters. |
Molecular information | Available NCBI: http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi |
Last update by | Sandra Gečaitė, 2024-08-01 |