Association with vessel vectors
Actual evidence of being found in samples in a particular vector from any world region.
Anchor and anchor chains. Organisms found on anchors, anchor chain or within attached sediments, including anchor chain lockers.
Ballast water. Ballast water means water with its suspended matter taken on board a ship to control trim, list, draught, stability or stresses of the ship.
Biofouling. Biofouling means the accumulation of aquatic organisms such as micro-organisms, plants, and animals on surfaces and structures immersed in or exposed to the aquatic environment. Biofouling can include microfouling and macrofouling.
- Macrofouling means large, distinct multicellular organisms visible to the human eye such as barnacles, tubeworms, or fronds of algae.
- Microfouling means microscopic organisms including bacteria and diatoms and the slimy substances that they produce.
Biofouling comprised of only microfouling is commonly referred to as a slime layer.
Sea chest. The sea chests are cavities (an opening with protection grid) at the bottom side of the ships’ hull (an opening for pumping in and out water for, e.g., ballasting, firefighting) where aquatic organisms may settle and be transported.
Tank sediments. Matter settled out of ballast water within a ship.
Bioaccumulation association
Natural toxins. An organism that accumulates toxins naturally produced by other organisms, such as phytotoxins, in its tissues.
Anthropogenic chemical compounds. An organism that accumulates human-produced chemicals, such as pharmaceuticals, heavy metals, pesticides, dioxins, in its tissues.
Characteristic feeding method
Chemoautotroph. An organism that obtains metabolic energy by oxidation of inorganic substrates such as sulphur, nitrogen or iron.
Deposit feeder – Subsurface. Synonym: detritivore. An organism feeding on fragmented particulate organic matter in the substratum.
Deposit feeder – Surface. Synonym: detritivore. An organism feeding on fragmented particulate organic matter from the surface of the substratum.
Grazer. An organism feeding on plants (higher aquatic plants, benthic algae and phytoplankton) and/or sessile animals organisms.
Herbivore. An organism feeding on plants (higher aquatic plants, benthic algae and phytoplankton).
Mixotroph. An organism both autotrophic and heterotrophic.
Omnivore. An organism feeding on mixed diet of plant and animal material.
Parasite. Feeding on the tissues, blood or other substances of a host.
Photoautotroph. An organism that obtains metabolic energy from light by photosynthesis (e.g. seaweeds, phytoplankton).
Planktotroph. An organism feeding on plankton.
Predator. An organism that feeds by preying on other organisms, killing them for food.
Scavenger. An organism feeding on dead and decaying organic material.
Suspension feeder – Active. An organism feeding on particulate organic matter, including plankton, suspended in the water column, collecting it actively by sweeping or pumping (creating feeding currents).
Suspension feeder – Passive. An organism feeding on particulate organic matter, including plankton, suspended in the water column, utilizing the natural flow to bring particles in contact with feeding structures.
Symbiont contribution. Where some dietary component(s) are provided by symbiotic organisms (e.g. Anemonia with zooxanthellae).
Habitat modifying ability potential
Autogenic ecosystem engineers. Organisms which change the environment via their own physical structures (i.e. their living and dead tissues) such as corals, oysters, kelps, sea grasses, etc.
Allogenic ecosystem engineers. Organisms which modify the environment by causing physical state changes in biotic and abiotic materials that, directly or indirectly, modulate the availability of resources to other species (e.g. excavating deep burrows which other organisms co-occupy, damming the water flow, etc).
Keystone species. A keystone species is crucial in maintaining the organization and diversity of its ecological community, by determining the types and numbers of other species.
References
References should follow the standard of Biological invasions:
Journal article
Gamelin FX, Baquet G, Berthoin S, Thevenet D, Nourry C, Nottin S, Bosquet L (2009) Effect of high intensity intermittent training on heart rate variability in prepubescent children. Eur J Appl Physiol 105:731-738. doi: 10.1007/s00421-008-0955-8
Ideally, the names of all authors should be provided, but the usage of “et al” in long author lists will also be accepted:
Smith J, Jones M Jr, Houghton L et al (1999) Future of health insurance. N Engl J Med 965:325–329
Article by DOI
Slifka MK, Whitton JL (2000) Clinical implications of dysregulated cytokine production. J Mol Med. doi:10.1007/s001090000086
Book
South J, Blass B (2001) The future of modern genomics. Blackwell, London
Book chapter
Brown B, Aaron M (2001) The politics of nature. In: Smith J (ed) The rise of modern genomics, 3rd edn. Wiley, New York, pp 230-257
Online document
Cartwright J (2007) Big stars have weather too. IOP Publishing PhysicsWeb. http://physicsweb.org/articles/news/11/6/16/1. Accessed 26 June 2007
Dissertation
Trent JW (1975) Experimental acute renal failure. Dissertation, University of California
Reproductive type
Asexual. Budding, Fission, Fragmentaion, including parthenogenesis. A form of asexual multiplication in which:
a) a new individual begins life as an outgrowth from the body of the parent. It may then separate to lead an independent existence or remain connected or otherwise associated to form a colonial organism;
b) the ovum develops into a new individual without fertilization;
c) division of the body into two or more parts each or all of which can grow into new individuals is involved.
Self-fertilization. Selfing or autogamy. The union of a male and female gamete produced by the same individual.
Sexual. Permanent hermaphrodite, Protandrous hermaphrodite, Protogynous hermaphrodite, Gonochoristic.
Capable of producing both ova and spermatozoa either at the same time. A condition of hermaphroditism in plants and animals where male gametes mature and are shed before female gametes mature or vice versa.
Having separate sexes.
Habitat modifying ability potential (?) |
Autogenic ecosystem engineers Keystone species
References: Altamirano, M., Múñoz, A. R., De la Rosa, J., Barrajón-Mínguez, A., Barrajón-Domenech, A., Moreno-Robledo, C., & Arroyo, M. C. (2008). The invasive species Asparagopsis taxiformis (Bonnemaisoniales, Rhodophyta) on Andalusian coasts (Southern Spain): reproductive stages, new records and invaded communities. Acta botánica malacitana, 33, 1-11.
Comments: In Spain ot forms consipuous monospecific stands; in these sites, the species appears to act as a keystone species |
|
Toxicity / Life stage (?) |
Not relevant
References: El-Baroty, G. S., Moussa, M. Y., Shallan, M. A., Ali, M. A., Sabh, A. Z., Shalaby, E. A. 2007. Contribution to the aroma, biological activities, minerals, protein, pigments and lipid contents of the red alga: Asparagopsis taxiformis (Delile) Trevisan. J. Appl. Sci. Res, 3(12), pp. 1825-1834.
Comments: Distilled water extract was found to be toxic on fresh water animal (Daphnia magna), while powdered alga showed weak toxicity. |
|
Known human health impact? |
Known
References: Neethu, P. V., Suthindhiran, K., Jayasri, M. A. 2017. Antioxidant and antiproliferative activity of Asparagopsis taxiformis. Pharmacognosy research, 9(3), 238.
Comments: Harmless. Red algae possess strong antioxidant and cytotoxic activity that suggests their possible use in the development of pharmaceutical drugs. |
Known economic impact? |
Known
References: Manilal, A., Sujith, S., Sabarathnam, B., Kiran, G. S., Selvin, J., Shakir, C., Lipton, A. P. 2010. Bioactivity of the red algae Asparagopsis taxiformis collected from the southwestern coast of India. Brazilian Journal of Oceanography, 58, pp. 93-100.
Comments: The overall activity profile envisages that the active column fraction of A. taxiformis might contain synergistic bioactive metabolites that could be utilized for the control of fouling organisms, algal bloom and herbivorous/predaceous fishes in aquaculture ponds. |
Known measurable environmental impact? |
Known
References: Roque, B. M., Venegas, M., Kinley, R. D., de Nys, R., Duarte, T. L., Yang, X., Kebreab, E. 2021. Red seaweed (Asparagopsis taxiformis) supplementation reduces enteric methane by over 80 percent in beef steers. Plos one, 16(3), e0247820.
Comments: The red macroalgae (seaweed) Asparagopsis spp. has shown to reduce ruminant enteric methane (CH4) production up to 99% in vitro. |
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
References: Altamirano, M., Múñoz, A. R., De la Rosa, J., Barrajón-Mínguez, A., Barrajón-Domenech, A., Moreno-Robledo, C., & Arroyo, M. C. (2008). The invasive species Asparagopsis taxiformis (Bonnemaisoniales, Rhodophyta) on Andalusian coasts (Southern Spain): reproductive stages, new records and invaded communities. Acta botánica malacitana, 33, 1-11.
Comments: Although there is no direct evidence, it might have arrived in Europe via shipping, in ballast waters, fouling, fishing nets or ropes |
|