2007
DOI: 10.1080/00288330709509924
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First record of the Australian ascidianEudistoma elongatumin northern New Zealand

Abstract: A colonial ascidian was first reported by marine farmers in Houhora Harbour, Northland, New Zealand in early 2005 and subsequently found on oyster racks in Parengarenga Harbour and the Bay of Islands. The Northland ascidian was identified with a combination of morphological characters and DNA cytochrome c oxidase I (COI) sequence data, as Eudistoma elongatum, a species native to Australia, where it is found from northern New South Wales to Northern Queensland, and distinguished from Eudistoma circumvallatum, t… Show more

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Cited by 14 publications
(4 citation statements)
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“…We have modeled first solvation coordination as a part of explicit solvation to capture the interactions between the metal and water molecules and have then considered the implicit solvation using continuum models to improve accuracy, as suggested in the literature. Gas phase and solvation phase calculations were performed, where the solvation effects were ignored for the former (full reference for ADF is given in SI). Most ascidians dwell within the first 25 m of the ocean/sea waters, where the pressure could be around 1–2 atm. ,, Ascidians prefer to live within a narrow temperature range of 16–28 °C (289.15–301.15 K). Considering these factors, the calculations are performed under standard conditions as they do not deviate drastically from the living conditions of ascidians.…”
Section: Computational Detailsmentioning
confidence: 99%
“…We have modeled first solvation coordination as a part of explicit solvation to capture the interactions between the metal and water molecules and have then considered the implicit solvation using continuum models to improve accuracy, as suggested in the literature. Gas phase and solvation phase calculations were performed, where the solvation effects were ignored for the former (full reference for ADF is given in SI). Most ascidians dwell within the first 25 m of the ocean/sea waters, where the pressure could be around 1–2 atm. ,, Ascidians prefer to live within a narrow temperature range of 16–28 °C (289.15–301.15 K). Considering these factors, the calculations are performed under standard conditions as they do not deviate drastically from the living conditions of ascidians.…”
Section: Computational Detailsmentioning
confidence: 99%
“…A recent introduction from Australia, Eudistoma elongatum (Herdman 1886), has become established in Northland (Handley 2005). This species is genetically and morpholo-gically distinct from Eudistoma circumvallatum (Smith et al 2007) and can be distinguished by colony morphology, the musculature of the thorax, the number of stigmata and the size and pigmentation of the stomach and long cylindrical drooping colonies up to 180 mm long.…”
Section: Remarksmentioning
confidence: 99%
“…In many cases, rigs operate at offshore locations that are tens to hundreds of kilometres from suitable habitat for biofouling organisms. For some taxa (e.g., many colonial ascidians), this distance is well beyond their natural dispersal range (Clarke et al 1999;Smith et al 2007), while for others (e.g., bivalves) dispersal from this distance is possible. For example, the feeding larvae of the New Zealand endemic green-lipped mussel (Perna canaliculus) found on Rig A can spend 3-5 weeks being passively dispersed by ocean currents until a suitable settling substrate is encountered.…”
Section: Challenges Associated With Pre-border Managementmentioning
confidence: 99%