Simulation of the Mollusc Ascoglossa Elysia Subornata Population Dynamics: Application to the Potential Biocontrol of Caulerpa T
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Predicting Risks of Invasion of Caulerpa Species in Florida
University of Central Florida STARS Electronic Theses and Dissertations, 2004-2019 2006 Predicting Risks Of Invasion Of Caulerpa Species In Florida Christian Glardon University of Central Florida Part of the Biology Commons Find similar works at: https://stars.library.ucf.edu/etd University of Central Florida Libraries http://library.ucf.edu This Masters Thesis (Open Access) is brought to you for free and open access by STARS. It has been accepted for inclusion in Electronic Theses and Dissertations, 2004-2019 by an authorized administrator of STARS. For more information, please contact [email protected]. STARS Citation Glardon, Christian, "Predicting Risks Of Invasion Of Caulerpa Species In Florida" (2006). Electronic Theses and Dissertations, 2004-2019. 840. https://stars.library.ucf.edu/etd/840 PREDICTING RISKS OF INVASION OF CAULERPA SPECIES IN FLORIDA by CHRISTIAN GEORGES GLARDON B.S. University of Lausanne, Switzerland A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department of Biology in the College of Arts and Sciences at the University of Central Florida Orlando, Florida Spring Term 2006 ABSTRACT Invasions of exotic species are one of the primary causes of biodiversity loss on our planet (National Research Council 1995). In the marine environment, all habitat types including estuaries, coral reefs, mud flats, and rocky intertidal shorelines have been impacted (e.g. Bertness et al. 2001). Recently, the topic of invasive species has caught the public’s attention. In particular, there is worldwide concern about the aquarium strain of the green alga Caulerpa taxifolia (Vahl) C. Agardh that was introduced to the Mediterranean Sea in 1984 from the Monaco Oceanographic Museum. -
Biodiversity Journal, 2020, 11 (4): 861–870
Biodiversity Journal, 2020, 11 (4): 861–870 https://doi.org/10.31396/Biodiv.Jour.2020.11.4.861.870 The biodiversity of the marine Heterobranchia fauna along the central-eastern coast of Sicily, Ionian Sea Andrea Lombardo* & Giuliana Marletta Department of Biological, Geological and Environmental Sciences - Section of Animal Biology, University of Catania, via Androne 81, 95124 Catania, Italy *Corresponding author: [email protected] ABSTRACT The first updated list of the marine Heterobranchia for the central-eastern coast of Sicily (Italy) is here reported. This study was carried out, through a total of 271 scuba dives, from 2017 to the beginning of 2020 in four sites located along the Ionian coasts of Sicily: Catania, Aci Trezza, Santa Maria La Scala and Santa Tecla. Through a photographic data collection, 95 taxa, representing 17.27% of all Mediterranean marine Heterobranchia, were reported. The order with the highest number of found species was that of Nudibranchia. Among the study areas, Catania, Santa Maria La Scala and Santa Tecla had not a remarkable difference in the number of species, while Aci Trezza had the lowest number of species. Moreover, among the 95 taxa, four species considered rare and six non-indigenous species have been recorded. Since the presence of a high diversity of sea slugs in a relatively small area, the central-eastern coast of Sicily could be considered a zone of high biodiversity for the marine Heterobranchia fauna. KEY WORDS diversity; marine Heterobranchia; Mediterranean Sea; sea slugs; species list. Received 08.07.2020; accepted 08.10.2020; published online 20.11.2020 INTRODUCTION more researches were carried out (Cattaneo Vietti & Chemello, 1987). -
2007 Final Report
FINAL REPORT November 15, 2007 Project Title Improving Understanding of Invasive Seaweeds in California’s Coastal Waters: Moving Beyond Caulerpa taxifolia. Principal Investigator Steven N. Murray Dean, College of Natural Sciences and Mathematics California State University, Fullerton 92834-6850 The impetus for this project came from the increasing attention accorded introduced seaweed species in the eastern North Pacific following the California invasions of Caulerpa taxifolia and Undaria pinnatifida around the turn of the century. Much attention was given to Caulerpa taxifolia, primarily because of the notoriety associated with this seaweed resulting from its problematic invasion of the Mediterranean Sea. Its appearance in two southern California inland lagoons resulted in a massive and expensive eradication effort. In contrast, the appearance of Undaria pinnatifida, an invader known to disrupt coastal marine communities in other parts of the world, received much less attention in California and comparable organized and well-financed efforts to totally eradicate this seaweed were not undertaken. Moreover, other introduced or likely introduced seaweeds are known from the region but their introductions have been poorly documented and little is know about their impacts on coastal communities. Some of these seaweeds appear to be very recent introductions while others have occurred in eastern North Pacific waters for many years. This project consisted of two components with the goal of advancing our understanding of seaweed introductions in the eastern North Pacific beyond Caulerpa taxifolia. These included: 1) the organization and convening of a workshop focusing on the identification of research needed to improve understanding of the biology and ecology of invasive seaweeds, and 2) the funding of a small grant program to initiate small research studies on invasive seaweeds. -
Title a NEW SPECIES of VOLVATELLA PEASE
CORE Metadata, citation and similar papers at core.ac.uk Provided by Kyoto University Research Information Repository A NEW SPECIES OF VOLVATELLA PEASE, 1860, FOUND IN THE "CAULERPAN MICROFAUNA" IN THE Title PROVINCE OF KII, MIDDLE JAPAN (OPISTHOBRANCHIA : SACOGLOSSA) Author(s) Hamatani, Iwao PUBLICATIONS OF THE SETO MARINE BIOLOGICAL Citation LABORATORY (1972), 21(1): 13-20 Issue Date 1972-12-01 URL http://hdl.handle.net/2433/175800 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University A NEW SPECIES OF VOL VATELLA PEASE, 1860, FOUND IN THE "CAULERPAN MICROFAUNA" IN THE PROVINCE OF KII, MIDDLE JAPAN (OPISTHOBRANCHIA: SACOGLOSSA)l) IwAo HAMATANI Tennoji Senior High School of Osaka Kyoiku University With Text-figures 1-3 and Plates II-III In the "caulerpan microfauna", so called by Burn (1966), which is a group of small animals especially inhabiting the caulerpan colonies and essentially feeding on these green algae, shelled sacoglossan opisthobranchs are systematically very interesting. Gonor ( 1961) gave in a table all available records of shelled sacoglossan opistho branchs which had ones been described by other researchers from various caulerpan species, when he showed the biology of Lobiger serradifalci (Calcara, 1840) collected from a mat of Caulerpa prolifera in the Harbor of Villefranche in September of 1960. Further, Burn ( 1966) described four species of shelled sacoglossan opisthobranchs, which were found in Octorber of 1964 living on the green alga Caulerpa racemosa, var. turbinata growing on the coral reef near the southeast of Suva, Viti Levu, Fiji. The present author also made an observation on the "caulerpan microfauna" at Cape Shionomisaki in the Province of Kii, Middle Japan in March of 1971 and found fourteen species of opisthobranch gastropods living on Caulerpa brachypus Harvey growing in the lower intertidal zone. -
National Management Plan for the Genus Caulerpa
National Management Plan for the Genus Caulerpa Photo by R. Woodfield, Merkel and Associates Submitted to the Aquatic Nuisance Species Task Force Prepared by the Caulerpa Working Group Draft - October, 2004 Executive Summary A variety of surveys have confirmed at least twenty-one species and varieties of Caulerpa with populations in different regions of the United States (U.S.). Three species of Caulerpa are thought to be invasive due to their historic and ongoing invasions of U.S. and Deleted: species have warranted special foreign waters; Caulerpa taxifolia (Aquarium or Mediterranean strain), Caulerpa brachypus and concern Caulerpa racemosa. Deleted: to which they are not native In June 2000 divers detected C. taxifolia (Mediterranean strain) in Agua Hedionda Lagoon located in Carlsbad, CA and a second population in Huntington Harbor, CA. Divers first discovered non-native C. brachypus off the coast of southern Florida in 1999. Concerns have Deleted: The spread of C. brachypus also been raised by scientists about C. racemosa, which has spread rapidly in the Mediterranean, has raised concerns because of its potential impact on the reef ecosystem off but has not yet produced any problematic populations in U.S. waters. the southeastern coast of Florida. The impact of Caulerpa on natural systems in U.S. waters is unknown. It is possible to Deleted: Introduction and spread of infer likely impacts based on documented impacts in similar ecosystems in other regions of the Caulerpa species into world, where non-native Caulerpa species have become established. Deleted: remain largely unstudied so Documented impacts of invasive Caulerpa species include competition with marine plants and the likely impacts on U.S. -
Etude De L'impact De L'algue Envahissante Caulerpa Taxifolia Sur
Etude de l’impact de l’algue envahissante Caulerpa taxifolia sur les peuplements de poissons. Etude approfondie sur une espèce « modèle » : Symphodus ocellatus (Labridae) Nous avons étudié les mécanismes d’impact de l’algue envahissante Caulerpa taxifolia (Vahl) C. Agardh sur les poissons en Méditerranée, en particulier à l’aide d’une étude approfondie sur une espèce « modèle » : Symphodus ocellatus (Forsskål). Un suivi des peuplements de poissons ainsi que des expérimentations in situ ont été réalisés au niveau du département des Alpes-Maritimes, sur des milieux colonisés par l’algue et des milieux témoins. Caulerpa taxifolia qui forme des prairies de frondes très denses et hautes, de la fin de l’été jusqu’au début de l’hiver, représente une gêne physique pour l’accès à la nourriture benthique et aux microhabitats. Le suivi de deux récifs artificiels crées in situ a montré que l’envasement et l’obstruction de cavités par C. taxifolia diminuent la capacité d’accueil d’un milieu rocheux pour la faune ichtyologique. La raréfaction d’abris convenables mène à une augmentation de la mortalité des petits individus par prédation. L’étude de contenus digestifs ainsi que des acides gras corporels chez S. ocellatus montre un changement de régime alimentaire sur les milieux envahis (augmentation de la consommation de plancton au détriment des proies benthiques). En aquarium, nous avons montré que l’accessibilité aux proies benthiques diminue avec la densification de l’algue. Nous avons observé in situ que C. taxifolia pose également le problème de l’accès et de la détection des proies benthiques pour les rougets de roche Mullus surmuletus. -
Descriptor 2. Especies Alóctonas
ESTRATEGIA MARINA DEMARCACIÓN MARINA LEVANTINO‐BALEAR PARTE IV. DESCRIPTORES DEL BUEN ESTADO AMBIENTAL DESCRIPTOR 2: ESPECIES ALÓCTONAS EVALUACIÓN INICIAL Y BUEN ESTADO AMBIENTAL Madrid, 2012 ESTRATEGIAS MARINAS: EVALUACIÓN INICIAL, BUEN ESTADO AMBIENTAL Y OBJETIVOS AMBIENTALES AUTORES DEL DOCUMENTO Instituto Español de Oceanografía: - Francisco Alemany - Salud Deudero - Maite Vázquez - Joan Moranta - Marta Sales - Juan Manuel Ruíz Asistencia Técnica TRAGSATEC S.A.: - Edurne Blanco CARTOGRAFÍA DIGITAL INSTITUTO ESPAÑOL DE OCEANOGRAFÍA Olvido Tello Asistencia Técnica TRAGSATEC S.A.: - Carolina Sánchez - Carmen Díaz - Colaboración: Nuria Hermida Jiménez y Elena Pastor Garcia, en el marco del proyecto IDEO (Infraestructura de Datos Espaciales) del IEO, han participado en la elaboración, corrección y actualización de capas GIS que fueron utilizadas en la elaboración de la cartografía para los diferentes descriptores. COORDINACIÓN INSTITUTO ESPAÑOL DE OCEANOGRAFÍA Demetrio de Armas Juan Bellas COORDINACIÓN GENERAL MINISTERIO DE AGRICULTURA, ALIMENTACIÓN Y MEDIO AMBIENTE (DIVISIÓN PARA LA PROTECCIÓN DEL MAR) José Luis Buceta Miller Felipe Martínez Martínez Ainhoa Pérez Puyol Sagrario Arrieta Algarra Jorge Alonso Rodríguez Ana Ruiz Sierra Javier Pantoja Trigueros Mónica Moraleda Altares Víctor Escobar Paredes MINISTERIO DE AGRICULTURA, ALIMENTACIÓN Y MEDIO AMBIENTE Edita: © Ministerio de Agricultura, Alimentación y Medio Ambiente Secretaría General Técnica Centro de Publicaciones Catálogo de Publicaciones de la Administración General del Estado: -
Terpenoids in Marine Heterobranch Molluscs
marine drugs Review Terpenoids in Marine Heterobranch Molluscs Conxita Avila Department of Evolutionary Biology, Ecology, and Environmental Sciences, and Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain; [email protected] Received: 21 February 2020; Accepted: 11 March 2020; Published: 14 March 2020 Abstract: Heterobranch molluscs are rich in natural products. As other marine organisms, these gastropods are still quite unexplored, but they provide a stunning arsenal of compounds with interesting activities. Among their natural products, terpenoids are particularly abundant and diverse, including monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, triterpenoids, tetraterpenoids, and steroids. This review evaluates the different kinds of terpenoids found in heterobranchs and reports on their bioactivity. It includes more than 330 metabolites isolated from ca. 70 species of heterobranchs. The monoterpenoids reported may be linear or monocyclic, while sesquiterpenoids may include linear, monocyclic, bicyclic, or tricyclic molecules. Diterpenoids in heterobranchs may include linear, monocyclic, bicyclic, tricyclic, or tetracyclic compounds. Sesterterpenoids, instead, are linear, bicyclic, or tetracyclic. Triterpenoids, tetraterpenoids, and steroids are not as abundant as the previously mentioned types. Within heterobranch molluscs, no terpenoids have been described in this period in tylodinoideans, cephalaspideans, or pteropods, and most terpenoids have been found in nudibranchs, anaspideans, and sacoglossans, with very few compounds in pleurobranchoideans and pulmonates. Monoterpenoids are present mostly in anaspidea, and less abundant in sacoglossa. Nudibranchs are especially rich in sesquiterpenes, which are also present in anaspidea, and in less numbers in sacoglossa and pulmonata. Diterpenoids are also very abundant in nudibranchs, present also in anaspidea, and scarce in pleurobranchoidea, sacoglossa, and pulmonata. -
Biogeography of the Sacoglossa (Mollusca, Opisthobranchia)*
Bonner zoologische Beiträge Band 55 (2006) Heft 3/4 Seiten 255–281 Bonn, November 2007 Biogeography of the Sacoglossa (Mollusca, Opisthobranchia)* Kathe R. JENSEN1) 1)Zoological Museum, Copenhagen, Denmark *Paper presented to the 2nd International Workshop on Opisthobranchia, ZFMK, Bonn, Germany, September 20th to 22nd, 2006 Abstract. The Sacoglossa (Mollusca, Opisthobranchia) comprise almost 400 nominal species level taxa. Of these 284 are considered valid (i.e., no published synonymies) in this study. About half of the nominal species have been descri- bed before 1950, and the 10 most productive taxonomists have described about half of the species. Distributions of all valid species are reviewed. The highest diversity is found in the islands of the Central Pacific, though species diversity is almost as high in the Indo-Malayan sub-province. The Caribbean forms another center of species diversity. These three areas are distinguished by the high number of Plakobranchoidea. Similarity among provinces is generally low. Endemi- city is high in most provinces, but this may be an artifact of collecting activity. The decrease in number of species with latitude is spectacular, and the number of cold-water endemics is very low, indicating that sacoglossans in cold tempe- rate regions are mostly eurythermic warm water/ tropical species. The highest number of species in cold temperate are- as is found in Japan and Southeastern Australia. This coincides with high species diversity of the algal genus Caulerpa, which constitutes the diet of all shelled and many non-shelled sacoglossans. Keywords. Species diversity, endemism. 1. INTRODUCTION Information on biogeography is important for understand- they have depth distributions restricted to the photic zone, ing speciation and phylogeny as well as for making deci- i.e. -
Between Algal Chloroplasts Ano Sacoglossan Molluscs
Homage to Ramon Marga/ef,' or, Why there is such p/easure in studying nature 271 (J . D. Ros & N. Prat, eds.). 1991 . Oec% gia aquatica, 10: 271 -298 AOAPTIVE AOVANTAGES OF THE "SYMBIOSIS" BETWEEN ALGAL CHLOROPLASTS ANO SACOGLOSSAN MOLLUSCS JOANDOMENEC ROS * & ARNALDO MARÍN ** * Departament d'Ecologia. Facultat de Biologia. Universitat de Barcelona. Av. Diagonal, 645. 08028 Barcelona. Spain ** Departamento de Biología Animal y Ecología. Facultad de Biología. Universidad de Murcia. Campus de Espinardo. 30100 Murcia. Spain Received: September 1991. SUMMARV AH available information is reviewed on the characteristics and the way the "symbiosis" between algal chromoplasts and sacoglossan moHuscs works, using the existing bibliography and the authors' own studies. Emphasis is placed on the importance of the food subsidy received by the mollusc, whjch is one of the various benefits derived from the association, and on the possible benefit obtained from this consortium by the algal species involved and not by the retained chloroplasts, which are, after aH, non-autonorruc cell organelles. After making various theoretical considerations, and on the basis of the population dynamics of sorne pairs of alga-sacoglossan species, especiaHy an Acetabularia acetabulum and Elysia timida population thoroughly studied by the authors, the foHowing conclusions are drawn: a) The establishment of a symbiotic relationship between sacoglossans and chromoplasts and the different levels of mutual adaptation and efficiency reached, are a direct function of the difficulty (seasonal or otherwise) experienced by the molIusc in obtaining food. b) Depending on the moment of the biological cycle in which the animal receives it, the energy subsidy provided by the chloroplasts to the host moHusc acts either as a dietary complement, a dietary supplement or a partiaJ substitute of the normalIy obtained algal food. -
Working Group on Introductions and Transfers of Marine Organisms (WGITMO)
ICES WGITMO Report 2006 ICES Advisory Committee on the Marine Environment ICES CM 2006/ACME:05 Working Group on Introductions and Transfers of Marine Organisms (WGITMO) 16–17 March 2006 Oostende, Belgium International Council for the Exploration of the Sea Conseil International pour l’Exploration de la Mer H.C. Andersens Boulevard 44-46 DK-1553 Copenhagen V Denmark Telephone (+45) 33 38 67 00 Telefax (+45) 33 93 42 15 www.ices.dk [email protected] Recommended format for purposes of citation: ICES. 2006. Working Group on Introductions and Transfers of Marine Organisms (WGITMO), 16–17 March 2006, Oostende, Belgium. ICES CM 2006/ACME:05. 334 pp. For permission to reproduce material from this publication, please apply to the General Secretary. The document is a report of an Expert Group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. © 2006 International Council for the Exploration of the Sea. ICES WGITMO Report 2006 | i Contents 1 Summary ........................................................................................................................................ 1 2 Opening of the meeting and introduction.................................................................................... 5 3 Terms of reference, adoption of agenda, selection of rapporteur.............................................. 5 3.1 Terms of Reference ............................................................................................................... 5 3.2 Adoption -
BIOLOGICAL CONTROL of IOLLER ALGAE, CAULERPA TAXIFOLIA '' Lars WJ Anderson USDA- ARS Exotic and Invasive Weed Research Davis, CA
'. BIOLOGICAL CONTROL OF IOLLER ALGAE, CAULERPA TAXIFOLIA '' Lars WJ Anderson USDA- ARS Exotic and Invasive Weed Research Davis, CA ABSTRACT Caulerpa taxifolia, a marine alga, has invaded Mediterranean subtidal ecosystems from small founder populations in 1984 to present expanse of about 6,000ha, including coasts of France, Monaco, Italy, Spain and I, Croatia, and Tunisia. It was recently found in Australia and Southern California in 2000. It has successfully displaced several native, benthic communities and can establish on a variety of substrates from sand to rocky shores. Reproduction and spread is clonal via stolons supporting fronds from 0.2 to 3 meters long. The small, California populations have been under vigorous containment and eradication since their discovery under the direction of the Southern California Caulerpa Action Team (SCCAT). Four species of herbivorous gastropods (mollusks) have been examined in Europe for potential reduction of th extensive Mediterranean C. taxifolia populations ( Oxytnoe azuropunctata, Elysia subornatat, Oxynoe olivacea and Lobiger serradifalci) E. suboranata, a tropical species, though unable to survive below 15C, has direct, benthic development (no pelagic larvae), feeds well at higher (e.g.>20C) temperatures, and appears to be the best candidate. However, since it is not native, further testing of host-specificity and potential for switching is required. L, serraedifalci, a native to the Mediterranean, feeds on C. taxifolia, but also tends to produce fragments, which can spread the population further. At present, there is no ' ' proven, effective biological control agent for C. taxifolia. INTRODUCTION Nearly 20 years ago, one of the most interesting and aggressive marine invasive species, Caulerpa taxifolia, entered Mediterranean waters off Monaco and began its dominance of subtidal habitats there (Meinesz, 1999).