AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Amphibalanus reticulatus [WoRMS] | |
Authority | (Utinomi, 1967) | |
Family | Balanidae | |
Order | Sessilia | |
Class | Hexanauplia | |
Phylum | Arthropoda | |
Synonym (?) | Balanus reticulatus (Utinomi, 1967) | |
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Indian Ocean: Pacific Comments: Pantropical tropical and warm-temperate seas |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Self-fertilization Sexual References: Smithsonian Environmental Research Center. (n.d.). Amphibalanus reticulatus. Retrieved from https://invasions.si.edu/nemesis/species_summary/89635 Comments: This species, like many other barnacles, is hermaphroditic, but is capable of cross-fertilization. The fertilized eggs are brooded in the mantle cavity, sometimes for several months, and are released as nauplius larvae with three pairs of appendages. |
Developmental trait (?) | Spawning |
Characteristic feeding method / Life stage (?) |
References (not structured): Smithsonian Environmental Research Center. (n.d.). Amphibalanus reticulatus. Retrieved from https://invasions.si.edu/nemesis/species_summary/89635 Comments: Juvenile and adult barnacles are filter feeders, sweeping the water with their long bristled appendages, and gathering phytoplankton, zooplankton, and detritus. |
Mobility / Life stage (?) |
References (not structured): Raman, S., Kumar, R. 2011. Construction and nanomechanical properties of the exoskeleton of the barnacle, Amphibalanus reticulatus. Journal of structural biology, 176(3), pp. 360-369. Rajitha, K., Nancharaiah, Y. V., Venugopalan, V. P. 2020. Role of bacterial biofilms and their EPS on settlement of barnacle (Amphibalanus reticulatus) larvae. International Biodeterioration & Biodegradation, 150, 104958. Comments: The acorn barnacles are seen in plenty as inhabitants of shallow and intertidal marine waters. Being sessile, any hard surface is an attraction for attachment as they are dependent on solid surfaces for their survival, colonization and reproduction. They are also seen living attached to the surfaces of mussels, oysters, crabs and whales, and sometimes even on the shells of other barnacles. The planktonic swimming larval phase undergoes settlement on a suitable surface after thorough exploration, subsequent degeneration of larval planktonic characters (swimming) and finally enters into a sessile phase. |
Salinity tolerance range (?) | Exact range: 10 - 40 References: Thiyagarajan, V., Nair, K. V. K., Subramoniam, T., Venugopalan, V. P. 2002. Larval settlement behaviour of the barnacle Balanus reticulatus in the laboratory. Journal of the Marine Biological Association of the United Kingdom, 82(4), pp. 579-582. Farrapeira, C. M. R. 2008. Cirripedia Balanomorpha of Paripe River estuary (Itamaracá Island, Pernambuco, Brazil). Biota Neotropica, 8(3), pp. 31-39. Comments: Amphibalanus reticulatus prefers saline (30-40 PSU), subtidal habitats in subtropical and tropical seas, although it has been found at sailintiies as low as 10 PSU. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Raman, S., Kumar, R. 2011. Construction and nanomechanical properties of the exoskeleton of the barnacle, Amphibalanus reticulatus. Journal of structural biology, 176(3), pp. 360-369. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known Comments: Harmless. |
Known economic impact? | Known References: Raman, S., Kumar, R. 2011. Construction and nanomechanical properties of the exoskeleton of the barnacle, Amphibalanus reticulatus. Journal of structural biology, 176(3), pp. 360-369. Comments: The hard, calcified shells of the barnacles not only do reduce the efficiency of the ships, but also is highly difficult to be scraped away. |
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 (?) | Ballast waters References: Gollasch S, Macdonald E, Belson S, Botnen H, Christensen JT, Hamer JP, Houvenaghel G, Jelmert A, Lucas I, Masson D, McCollin T, Olenin S, Persson A, Wallentinus I, Wetsteyn LPMJ, Wittling T (2002) Life in Ballast Tanks In: Invasive aquatic species of Europe - distribution, impact and management. Leppäkoski, E., S. Gollasch & S. Olenin (eds). Kluwer Academic Publishers: 217-231 http://www.corpi.ku.lt/nemo/aqua_app_gollasch.pdf |
Last update by | Sandra Gečaitė, 2024-08-01 |