AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Achelia sawayai [WoRMS] | |
Authority | Marcus, 1940 | |
Family | Ammotheidae | |
Order | Pantopoda | |
Class | Pycnogonida | |
Phylum | Arthropoda | |
Synonym (?) | Tanystylum calcicostre Kraeuter 1973 References (not structured): WoRMS |
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Sub-species level (?) | Not entered |
Native origin (?) | Not known References: Child, A. (1992). Shallow-water pycnogonida of the Gulf of Mexico. Memoirs of the Hourglass Cruises, 9, 86. Comments: Western Atlantic, Caribbean Sea, Western Africa, Madagascar, Southern Pacific (French Polynesia, Indonesia...) |
Life form / Life stage (?) |
References: Arnaud, F., & Bamber, R. N. (1987). The Biology of Pycnogonida. 74. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous References: Arnaud, F., & Bamber, R. N. (1987). The Biology of Pycnogonida. 74. |
Reproductive type (?) | Sexual |
Developmental trait (?) | Brooding References: Berry, M. B. 1980. The embryological development of Achelia sawayai (Ammotheidae, Pycnogonida), with notes on some phases of the behavior and anatomy of the adult, and on the phylogenetic position of the Pycnogonida. Duke University. Comments: The male pycnogonid carries and broods the fertilized eggs until hatching, and the second pair of appendages has become modified for this function. |
Characteristic feeding method / Life stage (?) |
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Mobility / Life stage (?) |
Comments: Pycnogonids form a small homogeneous group of marine arthropods. They are found in all the oceans of the earth at depths ranging from littoral to greater than 6000 meters. |
Salinity tolerance range (?) | Unknown Comments: Not available. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Known References: Berry, M. B. 1980. The embryological development of Achelia sawayai (Ammotheidae, Pycnogonida), with notes on some phases of the behavior and anatomy of the adult, and on the phylogenetic position of the Pycnogonida. Duke University. Comments: They have no known economic importance, are too small and fragile for convenient handling. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF] Available at: https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf [Accessed 1 July 2024]. |
Association with vessel vectors (?) | Unknown Comments: Not available. |
Created by | Anna Occhipinti, 2020-02-28 |
Last update by | Sandra Gečaitė, 2024-08-01 |