AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Calliostoma zizyphinum [WoRMS] | |
Authority | (Linnaeus, 1758) | |
Family | Calliostomatidae | |
Order | Trochida | |
Class | Gastropoda | |
Phylum | Mollusca | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not known Comments: NE Atlantic Ocean and Mediterranean Sea |
Life form / Life stage (?) |
References (not structured): Scoupe, C., Borg, D., Ziemski, F., Muller, Y., in: DORIS , 01/06/2023: Calliostoma zizyphinum (Linnaeus, 1758), https://doris.ffessm.fr/ref/specie/1438 Comments: All larval development takes place within the egg, which contains reserves that the larvae feed on: there is no planktonic phase. At the end of this development, which lasts 7 to 10 days, young calliostomes emerge from the cord and are immediately benthic. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Wilbur, K. M., Verdonk, N. H., van den Biggelaar, J. A. M. 2013. Reproduction (Vol. 7). Elsevier. Comments: Archaeogastropoda are mostly gonochoric and broadcast spawners. Reproduction occurs in spring and summer. The female lays oocytes that are immediately fertilized by the male. |
Developmental trait (?) | Direct development References: Preston, S. J., Roberts, D. 2007. Variation in shell morphology of Calliostoma zizyphinum (Gastropoda: Trochidae). Journal of Molluscan Studies, 73(1), pp. 101-104. Comments: Calliostoma does not have a free swimming veliger stage in the life cycle and the larvae develop inside gelatinous ribbons. This form of direct development lessens the chances of populations mixing and increases the chances of the occurrence of genetically isolated groups, each responding uniquely and specifically to its own environmental influences. |
Characteristic feeding method / Life stage (?) |
References (not structured): Smith, I. 2021. Calliostoma zizyphinum (Linnaeus, 1758), Identification and Biology. 10.13140/RG.2.2.16622.23365. Comments: Calliostomes are primarily herbivorous. They feed on algae and plant detritus, which they graze using their rasping radula. In the absence of algae, they can also adopt a secondary carnivorous diet by consuming small animals such as sponges, hydroids, ascidians and bryozoans. |
Mobility / Life stage (?) |
References (not structured): Smith, I. 2021. Calliostoma zizyphinum (Linnaeus, 1758), Identification and Biology. 10.13140/RG.2.2.16622.23365. Comments: The yellowish eggs are laid in a string of jelly attached to rock or algae. |
Salinity tolerance range (?) | Unknown References: Smith, I. 2021. Calliostoma zizyphinum (Linnaeus, 1758), Identification and Biology. 10.13140/RG.2.2.16622.23365. Comments: C. zizyphinum can survive salinity down to 21 ppt. Prefers marine environments with normal seawater salinity levels, which typically range from 30-35 ppt. |
Habitat modifying ability potential (?) | Unknown |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown |
Known human health impact? | Not known |
Known economic impact? | Not known |
Known measurable environmental impact? | Not known |
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) |
Association with vessel vectors (?) | Unknown |
Created by | Aleksas Narščius, 2020-05-05 |
Last update by | Sandra Gečaitė, 2024-07-08 |