AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Amathia gracilis [WoRMS] | |
Authority | (Leidy, 1855) | |
Family | Vesiculariidae | |
Order | Ctenostomatida | |
Class | Gymnolaemata | |
Phylum | Bryozoa | |
Synonym (?) | Amathia gracilis Bowerbankia gracilis |
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Sub-species level (?) | gracilis |
Native origin (?) | Ocean: Atlantic --> Ocean region: NE Atlantic References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Life form / Life stage (?) |
References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. Jebram, D. 1975 – Deuerknospen (“Hibernacula”) bei den Bryozoa Ctenostomata in mesohalinen und vollmarinen Gewassern. Marine Biology 31, 129-137. Comments: There is also a resting stage: heterozoides specialized in resistance function, they form it in condition of low salinity and temperature (Jebram, 1975). |
Sociability / Life stage (?) |
References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Reproductive frequency (?) | Iteroparous References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Reproductive type (?) | Asexual Self-fertilization Sexual References: Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Developmental trait (?) | Brooding Lecithotrophy References: Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. Winston J.E. 1982 – Marine Bryozoans (Ectoprocta) of the Indian River Area (Florida) – Bull. Amer. Mus. Nat. Hist. 173(2): 99-176 Comments: Eggs are brooded internally, usually in zooids whose polypides have degenerated. Embryos are peach coloured. Larvae are short-lived, elongate coronate. |
Characteristic feeding method / Life stage (?) |
References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Mobility / Life stage (?) |
References (not structured): Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Salinity tolerance range (?) | Exact range: 15 - 30 References: Occhipinti Ambrogi A., 1981. Briozoi lagunari. CNR AQ/1/126 Winston J.E., 1995 – Ectoproct diversity of the Indian River Coastal Lagoon. Bulletin of Marine Science, 57, 84-93 |
Habitat modifying ability potential (?) | Not entered |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Not entered |
Known human health impact? | Not entered |
Known economic impact? | Not entered |
Known measurable environmental impact? | Not entered |
Included in the Target Species list? | Not entered |
Association with vessel vectors (?) | Biofouling References: Hayward P.J., 1985 – Ctenostome Bryozoans - Synopses of the British Fauna (New Series) edited by Doris M. Kermack and R.S.K. Barnes. N° 33. 169pp. |
Molecular information | Available Genbank: https://www.ncbi.nlm.nih.gov/nuccore/?term=Amathia+gracilis |
Last update by | Aleksas Narščius, 2019-02-05 |