The aquarium strain of Caulerpa taxifolia is an extremely invasive seaweed that has infested tens of thousands of acres in the Mediterranean Sea. 1998). In particular, Caulerpa taxifolia (Vahl) C. Agardh, which is not invasive in tropical regions, is known in the Mediterranean as an invasive lineage, the so called “aquarium strain”, which spreads on a variety of substrata and forms dense beds (Meinesz et al.
Bright coloration. Students learn about the characteristics specific to this alga that make it particularly invasive and a danger to local ecosystems.
CQ#2: In your opinion, which single trait of the Aquarium-Mediterranean strain of Caulerpa taxifolia makes it particularly well desirable for use in public and private saltwater aquariums? B. At the global biogeographical scale, C. taxifolia is a complex of genetically and ecologically differentiated sibling species , . Summary of Invasiveness Top of page. Caulerpa taxifolia is a species of seaweed, an alga of the genus Caulerpa native to the Indian Ocean.It is widely used ornamentally in aquariums, because it is considered attractive and neat in arrangement, and is easy to establish and care for.The alga has a stem (rhizome) which spreads horizontally just above the seafloor. Start studying Killer Algae Quiz. In the first study, in contrast with the invasive Caulerpa taxifolia and the native Mediterranean Caulerpa prolifera (Forsskål) J.V. A Case Study in Invasive Species - PowerPoint PPT Presentation
You Poured it Where? Lamouroux which contained equally high amounts of Caulerpenyne (6 mg g −1 of fresh weight), the content in C. racemosa was half as … 6
C. taxifolia is a green marine macro-algae native to tropical waters of the Indian, Pacific and Atlantic oceans.
In the same way, the spread of an aquarium strain of Caulerpa taxifolia in the Mediterranean has led several governments (Australia, France, Spain and USA) to ban its use in the aquarium trade in order to prevent it from escaping to new geographical areas (Jousson et al., 1998).
Mediterranean Species of Caulerpa Are Polyploid with Smaller Genomes in the ... although rare and apparently absent in the invasive Mediterranean strain, as shown using nuclear and cytoplasmic sequences . Resistance to temperature fluctuations. If possible, avoid boating in shallow weedy areas, and particularly near Caulerpa taxifolia outbreaks. spread of a non-native species, specifically the spread of the aquarium strain of Caulerpa taxifolia. They also learn why invasive species in general are a threat to established ecosystems as well * CQ#4: The Aquarium-Mediterranean strain of Caulerpa taxifolia is particularly invasive because: It was artificially selected to possess traits favorable to aquarium life. C. Rapid reproductive rate. Since 2000, it had been found in two coastal water bodies in southern California (but has since been eradicated). Beds of the invasive alga Caulerpa taxifolia were observed to be buried with sediment after heavy rainfall, and it was proposed that burial and subsequent uncovering could help explain rapid changes in the sizes of beds of C. taxifolia.Responses of C. taxifolia fragments to the different extents of burial and for different durations (2, 6, 17 days) were investigated in the laboratory.
Due to its fast-growing hardy nature, and attractive appearance, Caulerpa taxifolia is used as decorative saltwater aquarium plant.
The Mediterranean strain of Caulerpa was prohibited under the U.S. Federal Noxious Weed Act in 1999.
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