AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Halophila stipulacea [WoRMS] | |
Authority | (Forsskål) Ascherson, 1867 | |
Family | Hydrocharitaceae | |
Order | Alismatales | |
Class | Magnoliopsida | |
Phylum | Tracheophyta | |
Synonym (?) | Zostera stipulacea References (not structured): Guiry MD, Guiry GM (2011) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway Robertson EL (1984) Seagrasses. In: The marine benthic flora of Southern Australia. Part 1. (Womersley, H.B.S. Eds), pp. 57-122. Adelaide: D.J. Woolman, Government Printer, South Australia Comments: This name is currently regarded as a taxonomic synonym of Halophila stipulacea (Forsskål) Ascherson |
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Sub-species level (?) | Not known |
Native origin (?) | LME: 33. Red Sea References (not structured): Por FD (1971) One hundred years of Suez Canal—a century of Lessepsian migration: retrospect and viewpoints. Systematic Biology 20, 138 Hartog C (1970) The seagrasses of the world. North Holland Publishing Co., Amsterdam 78, 449-464 Comments: The seagrass was originaly described from the Red Sea and is distributed along the Asian and African shores of the western Indian Ocean,occuring from the Red Sea to Madagascar. After Suez Canal opening the species migrated to the Mediterranean Sea. |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
References (not structured): [1] Larkum, A. W. D. & Den Hartog, C. Evolution and biogeography of seagrasses. Biology of seagrasses. A treatise on the biology of seagrasses with special reference to the Australian region. Elsevier Science Publishers BV, Amsterdam, 112-156 (1989). [2] Rindi, F., Maltagliati, F., Rossi, F., Acunto, S. & Cinelli, F. Algal flora associated with a Halophila stipulacea (Forsskål) Ascherson (Hydrocharitaceae, Helobiae) stand in the western Mediterranean. Oceanologica Acta 22, 421-429 (1999). Comments: Though earlier it was reported that it forms monospecific or polyspecific meadows (Larkum & Den Hartog, 1989), later studies in Vulcano Island in Italy report polyspecific meadows with up to 36 epiphytes associated with Halophila stipulacea (Rindi et al, 1999). |
Reproductive frequency (?) | Iteroparous References (not structured): Malm T (2006) Reproduction and recruitment of the seagrass Halophila stipulacea. Aquatic Botany 85, 345-349 Procaccini G, Acunto S, Famà P, Maltagliati F (1999) Structural morphological and genetic variability in Halophila stipulacea (Hydrocharitaceae) populations in the western Mediterranean. Marine Biology 135, 181-189 Lipkin Y (1975) Halophila stipulacea, a review of a successful immigration. Aquatic Botany 1, 203-215 Galil BS (2006) Halophila stipulacea. Delivering Alien Invasive Species Inventories for Europe (DAISIE) Boudouresque CF, Verlaque M (2002) Biological pollution in the Mediterranean Sea: invasive versus introduced macrophytes. Marine pollution bulletin 44, 32-38 Comments: The reproductive season takes place every year between May and September, depending on a variety of factors like light density and water temperature (Malm, 2006). In the bay of Eilat, first flowers are observed at the end of May. In the Mediterranean Sea the main flowering season seems to be in August (Lipkin, 1975), while Galil 2006 mentions the flowering season in July-August and seeding season in September. |
Reproductive type (?) | Asexual Sexual References: Malm T (2006) Reproduction and recruitment of the seagrass Halophila stipulacea. Aquatic Botany 85, 345-349 Procaccini G, Acunto S, Famà P, Maltagliati F (1999) Structural, morphological and genetic variability in Halophila stipulacea (Hydrocharitaceae) populations in the western Mediterranean. Marine Biology 135, 181-189 Gambi MC, Barbieri F, Bianchi CN (2009) New record of the alien seagrass Halophila stipulacea (Hydrocharitaceae) in the western Mediterranean: a further clue to changing Mediterranean Sea biogeography. Marine Biodiversity Records 2 Fritsch C (1895) Ueber die Auffindung einer marinen Hydrocharidee im Mittelmeer. Verh Zool Bot Ges Wien 45, 104-106 Politis J (1926) De la presence de l'Halophila stipulacea (Fbrsk.) Aschers. dans les mers Grecques. Prakt. Akad. Athenon, l : 111] 13 Lipkin Y (1975) Halophila stipulacea in Cyprus and Rhodes, 1967-1970. Aquatic Botany 1, 309-320, doi:10.1016/0304-3770(75)90029-7 Boudouresque CF, Verlaque M (2002) Biological pollution in the Mediterranean Sea: invasive versus introduced macrophytes. Marine pollution bulletin 44, 32-38 Comments: It's a dioecious seagrass. Procaccini et at 1999 report that only male flowers are found in the Mediterranean basin. Gambi et al 2009 conclude that since female flowers are difficult to be formed in the Mediterranean water temperatures, the main propagation methods of Halophila stipulacea needs to be fragmentation and vegetative stolonization. Earlier though expeditions mention the presence of female flowers and fruits in different parts of the Mediterranean Sea, like in Rhodes (Fritsch, 1895), Saronic Gulf (Politis, 1926), and Cyprus (Lipkin, 1975c). |
Developmental trait (?) | Spawning References: Pettitt JM (1981) Reproduction in seagrasses: pollen development in Thalassia hemprichii, Halophila stipulacea and Thalassodendron ciliatum. Annals of Botany 48, 609-622 |
Characteristic feeding method / Life stage (?) |
References (not structured): Runcie JW et al (2009) Photosynthetic responses of Halophila stipulacea to a light gradient. I. In situ energy partitioning of non-photochemical quenching. Aquatic Biology 7, 143-152 |
Mobility / Life stage (?) |
References (not structured): Pettitt JM (1981) Reproduction in seagrasses: pollen development in Thalassia hemprichii, Halophila stipulacea and Thalassodendron ciliatum. Annals of Botany 48, 609-622 Rindi F, Maltagliati F, Rossi F, Acunto S, Cinelli F (1999) Algal flora associated with a Halophila stipulacea (Forsskål) Ascherson (Hydrocharitaceae, Helobiae) stand in the western Mediterranean. Oceanologica Acta 22, 421-429 Comments: Pollen and seeds are drifters curried with currents but the adult stage is permanently attached on soft substrate. |
Salinity tolerance range (?) | Venice system: 7. Euhaline [30-40psu] |
Habitat modifying ability potential (?) | Keystone species References: Haritonidis S, Diapoulis A (1990) Evolution of Greek marine phanerogam meadows over the last 20 years. Posidonia Newsletter 3, 5-10 Tsiamis K, Montesanto B, Panayotidis P, Katsaros C, Verlaque M (2010) Updated records and range expansion of alien marine macrophytes in Greece (2009). Mediterranean marine science 11, 61-79 Gambi MC, Barbieri F, Bianchi CN (2009) New record of the alien seagrass Halophila stipulacea (Hydrocharitaceae) in the western Mediterranean: a further clue to changing Mediterranean Sea biogeography. Marine Biodiversity Records 2 Williams SL (2007)Introduced species in seagrass ecosystems: Status and concerns. Journal of Experimental Marine Biology and Ecology 350, 89-110 Willette DA, Ambrose RF (2009) The distribution and expansion of the invasive seagrass Halophila stipulacea in Dominica, West Indies, with a preliminary report from St. Lucia. Aquatic Botany 91, 137-142 Ruiz H, Ballantine DL (2004) Occurrence of the seagrass Halophila stipulacea in the tropical West Atlantic. Bulletin of Marine Science 75, 131-135 Comments: Besides the strong invasive behavior that is mentioned in the Aegean and the Ionian Seas (Haritonidis and Diapoulis 1990) and the high numbers of Halophila stipulacea meadows, no reports of native species displacement are found by now (Tsiamis et al, 2010). Gambi et al 2006 report that meadows in Palinuro harbour were found growing on dead mattes of Posidonia oceanica, and it was observed vertically outgoing P. oceanica. The small size of Halophila stipulacea might allow the co-existence with other larger native seagrasses without any ecological consequences of its introduction (Gambi et al, 2009). In the Caribbean more intensive invasive behavior has been reported though. Willete & Ambrose 2009 report that in Dominica republic, because of Halophila's more rapid colonization success after disturbance events, the invasive species was able to expand in areas that used to be covered by the native seagrass Syringodium filiforme. Such events could eventually lead to the replacement of native species and even cause cascading trophic effects to the whole trophic net (Willette & Ambrose, 2009). The presence of a comparatively environmentally tolerant seagrass such as H. stipulacea could reshape the marine resources and eventually supporting a higher number of grazing fish and invertebrate species (Willette & Ambrose, 2009). As well in Grenada, Ruiz & Bellantine 2004 report clews that can support both competition and reduction of native biodiversity. This is due to the luck of any other native seagrasses into the meadows of Halophila stipulacea they observed, while in the nearby bays native seagrasses are present. |
Toxicity / Life stage (?) | Not relevant References: Boudouresque CF, Verlaque M (2002) Biological pollution in the Mediterranean Sea: invasive versus introduced macrophytes, Marine pollution bulletin 44 (2002) 32-38 Comments: No toxic characteristics were even mentioned in the literature for any of its life stages. |
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? | Known References: Smulders, F.O.H., Arie Vonk, J., Engel, M.S., and Christianen, M.J.A., 2017. Expansion and fragment settlement of the non-native seagrass Halophila stipulacea in a Caribbean bay. Mar. Biol. Res. 13 (9), 967-974. https://doi.org/10.1080/17451000.2017.1333620 Comments: Competition, habitat alteration (Smulders et al. 2017). |
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 Biofouling References: Williams, S. L. (2007). Introduced species in seagrass ecosystems: status and concerns. Journal of Experimental Marine Biology and Ecology, 350(1), 89-110. Comments: Often found in harbours; it might be transfered by boats or fishing gears. Its recent finding in the West Indies further supports its capability dispersal by vessels |
Last update by | Monika Pelėdienė, 2022-01-18 |