00000cam 2200000zi 4500 9.964729 CaOODSP 20260804100445 m o d f cr mn||||||||| 260804t20112011oncab ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre Fs97-4/2966E-PDF Mackenzie, A. B. (Amanda B.) author. Biological synopsis of the compound sea squirt (Diplosoma listerianum) / by A.B. Mackenzie. Burlington ON : Fisheries and Oceans Canada, Centre of Expertise for Aquatic Risk Assessment, 2011. ©2011 1 online resource (v, 18 pages) : illustrations (some colour), maps (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 1488-5387 ; 2966 Includes bibliographical references (pages 10-13). "Diplosoma listerianum, commonly known as the compound sea squirt, is thought to be native to Europe. The species has achieved a nearly cosmopolitan distribution and was recorded in Atlantic Canadian waters in 2008 off the Magdalen Islands. The main vector for its introduction is through hull fouling. This colonial ascidian has many attributes which make it a successful invader, including its high recruitment rate and ability to migrate after settling. Following its introduction to new habitats, this ascidian rapidly dominates over native species, resulting in species composition shifts and reduced biodiversity. Colonies expand through asexual reproduction, and disperse through sexually produced lecithotrophic larvae. The species can tolerate a wide range of environmental conditions, but thrives in warmer waters. Events such as urban development and fishing create disturbances on the seafloor which facilitate the successful establishment of D. listerianum. General control methods have been successful for similar species and need to be studied for potential infestations of Diplosoma listerianum. This biological synopsis was prepared as a comprehensive collection of information"--Abstract, page v. Includes abstracts in English and French. Sea squirts. Sea squirts Environmental aspects. Introduced aquatic organisms. Ascidies (Tuniciers) Ascidies (Tuniciers) Aspect de l'environnement. Organismes aquatiques introduits. Canada. Department of Fisheries and Oceans, issuing body. Centre of Expertise for Aquatic Risk Assessment (Canada), issuing body. Biological synopsis of the compound Sea Squirt (Diplosoma listerianum) / (CaOODSP)9.620431 Canadian manuscript report of fisheries and aquatic sciences, 1488-5387 ; 2966. (CaOODSP)9.505211 PDF 559 KB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2966-eng.pdf