Cryptogamie, Algologie 13 2 : Box, A. Seasonality of caulerpenyne content in native Caulerpa prolifera and invasive C. Botanica Marina 53 4 : Ceccherelli, G. Short-term effects of nutrient enrichment of the sediment and interactions between the seagrass Cymodocea nodosa and the introduced green alga Caulerpa taxifolia in a Mediterranean bay.
Journal of Experimental Marine Biology and Ecology Habitat effect on spatio-temporal variability in size and density of the introduced alga Caulerpa taxifolia. A pilot study of nutrient enriched sediments in a Cymodocea nodosa bed invaded by the introduced alga Caulerpa taxifolia. Effects of Posidonia oceanica canopy on Caulerpa taxifolia size in a north-western Mediterranean bay. The role of vegetative fragmentation in the dispersal of the invasive alga Caulerpa taxifolia in the Mediterranean.
Chisholm, J. Comments on the article of Olsen et al. Journal of Phycology , 1 fig. Caulerpa taxifolia in the northwest Mediterranean: introduced species or migrant from the Red Sea?. A computer simulation to evaluate the impact of Caulerpa taxifolia on Mediterranean biodiversity. Vie et Milieu 47 4 : Changes and degradation in a Polidonia oceanica bed invaded by the introduced tropical alga Caulerpa taxifolia in the north western Mediterranean.
Botanica Marina , 11 figs, 1 table. Delgado, O. Lack of severe nutrient limitation in Caulerpa taxifolia Vahl C. Agardh, an introduced seaweed spreading over the oligotrophic northwestern Mediterranean. Ferla, S. Preliminary notes on epiphyte macroflora of Caulerpa taxifolia in the Straits of Messina. Giornale Botanico Italiano Fischel, J.
Cell growth inhibitory effects of caulerpenyne, a sesquiterpenoid from the marine alga Caulerpa taxifolia.. Anticancer Res. Gacia, E. Seasonal light and temperature responses of Caulerpa taxifolia from the northwestern Mediterranean.
Aquatic Botany Galgani, I. Effect of caulerpenyne, a toxin extracted from Caulerpa taxifolia on mechanisms regulating intracellular pH in sea urchin eggs and sea bream hepatocytes. Ganteaume, A. In vitro consumption of Caulerpa taxifolia Chlorophyta by accustomed and non-accustomed Paracentrotus lividus Echinoid : seasonal variations. Hasni, S. Taxonomy and some biochemical values of Caulerpa taxifolia and Hypnea muciformis collected from Karachi Coast. Pakistan Journal of Scientific and Industrial Research , 2 figs, 1 table.
Ivesa, L. Seasonal variations in fatty acid composition of Caulerpa taxifolia M. Jaubert, J. No deleterious alterations in Posidonia beds in the Bay of Menton France eight years after Caulerpa taxifolia colonization. Jongma, D. Identity and origin of a slender Caulerpa taxifolia strain introduced into the Mediterranean Sea. Botanica Marina 56 1 : Meinesz, A. Oceanologia Acta Zuljevic The introduced green alga Caulerpa taxifolia continued to spread in the Mediterranean.
Invasions 3: Variations in the structure, morphology and biomass of Caulerpa taxifolia in the Mediterranean Sea. Botanica Marina , 10 figs. Spread of the introduced tropical green alga Caulerpa taxifolia in northern Mediterranean waters. Journal of Applied Phycology 5: Meusnier, I. European Journal of Phycology Musco, L. Concern about the spread of the invader seaweed Caulerpa taxifolia var. Mediterranean Marine Science 15 3 : Nielsen, R.
Typification of Caulerpa cupressoides Vahl C. Agardh and C. Agardh Chlorophyta, Caulerpaceae. Taxon Spread within affected estuaries may also occur through natural means wind, waves, tides and currents. Since Caulerpa was first discovered in NSW in , studies have been undertaken to determine the effects of the marine alga on aquatic ecosystems.
The impacts of Caulerpa infestations on local seagrass populations have been well researched throughout the world Ceccherelli and Cinelli ; Ceccherelli and Sechi ; Holmer et al. There are two key characteristics of Caulerpa that may have helped it to establish and spread in areas outside its natural range.
Firstly, Caulerpa can grow rapidly, leading to concerns it could out-compete native seagrass. Secondly, small fragments of Caulerpa can grow into new plants and create large colonies. Since the initial discovery of Caulerpa in NSW research activities and observations indicate that the impacts of Caulerpa especially on seagrasses are not as severe as first considered.
Rather, it tends to grow primarily on the edges of seagrass beds and less commonly is found interspersed with seagrass. Caulerpa opportunistically occupies suitable uninhabited space. Caulerpa has been found to create habitat that is similar to native seagrasses in some regards e. The latter differences appear to be driven by the differences in sediment chemistry with Caulerpa beds compared to non-vegetated sediments, but more research is needed to investigate what extent these differences are driven by the density of vegetation as compared to the type of vegetation e.
Caulerpa versus seagrasses; Eyre et al. Research by Gribben and Wright focusing on the impacts of Caulerpa on invertebrates living in and on sediments has found that the cockle Anadara trapezia recruits in greater numbers to Caulerpa than to seagrass or unvegetated areas, but that the survival and reproductive output of females cockles is less in Caulerpa.
These observed impacts on invertebrates appear to be as a result of low levels of oxygen in water and in the sediments under Caulerpa. Taylor et al. After 15 years of published research and scientific observations in NSW, the behavior of Caulerpa in the NSW environment is now better understood and we are changing the way we manage it. We believe our efforts will be more effective if we focus on preventing the spread of Caulerpa to unaffected estuaries, rather than on activities that have little effect on established populations.
Large outbreaks of Caulerpa are almost impossible to eradicate, require extensive resources and cannot guarantee that Caulerpa will not reoccur so control activities will generally no longer be supported by DPI, unless in exceptional circumstances in a newly affected estuary.
Fishers and boaters will be required to clean their gear and equipment before leaving affected estuaries to minimise the risk of further spread. DPI will continue to issue advisory information that educates people about the importance of implementing good hygiene measures when leaving affected waterways to minimise the potential for spread of this marine alga to new waterways. DPI will continue to support research by universities to investigate the potential impacts of Caulerpa on fishes, invertebrates and nutrients in sediments.
We will also continue to investigate reports of Caulerpa infestations only in waterways where it has not previously been known to occur. The DPI Aquatic Biosecurity team encourages waterway users to be vigilant to help minimise the spread of Caulerpa to unaffected estuaries.
We encourage you to inspect all fishing and boating gear and remove and dispose of fragments by placing them in a plastic bag and into general waste. After removing all visible fragments anchors, chains and other gear should be washed using freshwater before moving to another estuary. Ensure that you do not have Caulerpa in your aquarium — it is illegal in NSW!
The use of this method in the cooler months, when C. Salting has so far only been succesfully used on soft sediments in water et. Physical : Simply covering C. Taxifolia colonies with black PVC plastic was found to be reasonably successful in Croatia. Manual removal by scuba divers was successful in eradicating a small patch of C.
Taxifolia , around 3. The use of a suction pump to remove all fragments has also met with moderate success in other areas. Clearance rates for manual removal are from et. Countries or multi-country features with distribution records for Caulerpa taxifolia. Informations on Caulerpa taxifolia has been recorded for the following locations. Click on the name for additional informations.
Details of Caulerpa taxifolia in information. Management notes for this location. Start date:. Ecosystem services:. Management information. Adelaide New South Wales Sydney. Dolin Is. Hvar Is. Elba Is. Imperia Liguria Strait of Messina Toscana. Auckland Region. Mallorca Is. Mediterranean Sea. Anderson, L. California s Reaction to Caulerpa taxifolia : A model for invasive species rapid response actions. Eradication of Caulerpa taxifolia in the US five years after discovery: are we there yet? Summary: An abstract about the eradication of C.
Caulerpa taxifolia: Marine algal invader provokes quick response in U. ANS Digest 4 2 : 13; Summary: Information on the eradication of C.
Taxifolia in California. Boudouresque, C. Scientific papers and documents dealing with the alga Caulerpa taxifolia introduced to the Mediterranean, Ninth edition.
Summary: This publication contents the bibliographic references of documents and scientific papers about Caulerpa taxifolia invasion in the Mediterranean Sea. Carlton, J. Introduced species in U. Pew Oceans Commission, Arlington, Virginia. Summary: An overview of many introduced marine species in the U. Commonwealth of Australia. Environment, Communications, Information Technology and the Arts References Committee: report on the regulation, control and management of invasive species and the Environment Protection and Biodiversity Conservation Amendment Invasive Species Bill Summary: A small amount of information on the cost of eradicating C.
Coquillard, P. Simulation of the mollusc Ascoglossa Elysia subornata population dynamics: application to the potential biocontrol of Caulerpa taxifolia growth in the Mediterranean Sea. Ecological Modelling Summary: Growth, survival, reproduction. Cottalorda, J.
Guidelines for the management of invasive alien plants or potentially invasive alien plants which are intended for import or have been intentionally imported. EPPO Bulletin 36 3 , Gacia, E. Seasonal light and temperatura responses of Caulerpa taxifolia from the northwestern Mediterranean. Aquatic Botany: Summary: Seasonal light requirements and temperature tolerance of the Mediterranean C. These results indicate that this species is well adapted to light abd temperature typical of the infralittoral and upper circalittoral zone in the Mediterranean.
Its annual productivity pattern seems less affected by seasonal fluctiations than has beeb reported for endemic seaweeds; this response may explain its potentially high invasive capacity. Glasby, T.
The spread and attempted control of the invasive seaweed, Caulerpa taxifolia , in New South Wales, Australia. Summary: Information on the use of salting to control C. Experimental use of salt to control the invasive marine alga Caulerpa taxifolia in New South Wales, Australia. Biological Conservation 4 : , McEnnulty, F. Web publication:. Meinesz, A. Evaluating and disseminating information concerning the spread of Caulerpa taxifolia along the French Mediterranean coasts.
Meinesz A. Summary: Report on the expansion of Caulerpa taxifolia in the Mediterranean coasts at end of 5 countries affected, 99 stations cited, ha concerned, 81 km of coast affected. The report included the cartography of the C. Murphy, N. Caulerpa taxifolia in Australia: A growing problem. Scripps Institution of Oceanography La Jolla, California Summary: Overview of identifcation techniques and a possible framework for the management of future incursions.
Caulerpa taxifolia species summary. National Pest Plant Accord, Biosecurity New Zealand. Summary: The National Pest Plant Accord is a cooperative agreement between regional councils and government departments with biosecurity responsibilities.
Ribera, M.
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