Northward Range Expansion of Three Non-Native Ascidians on the West Coast of North America
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Ascidian Cannibalism Correlates with Larval Behavior and Adult Distribution
FAU Institutional Repository http://purl.fcla.edu/fau/fauir This paper was submitted by the faculty of FAU’s Harbor Branch Oceanographic Institute. Notice: ©1988 Elsevier Ltd. The final published version of this manuscript is available at http://www.sciencedirect.com/science/journal/00220981 and may be cited as: Young, C. M. (1988). Ascidian cannibalism correlates with larval behavior and adult distribution. Journal of Experimental Marine Biology and Ecology, 117(1), 9-26. doi:10.1016/0022-0981(88)90068-8 J. Exp. Mar. Bioi. £Col., 1988, Vol. 117, pp. 9-26 9 Elsevier JEM 01042 Ascidian cannibalism correlates with larval behavior and adult distribution Craig M. Young Department ofLarval Ecology. Harbor Branch Oceanographic Institution, Fort Pierce, Florida. U.S.A. (Received 24 March 1987; revision received 9 December 1987; accepted 22 December 1987) Abstract: In the San Juan Islands, Washington, solitary ascidians .that occur in dense monospecific aggregations demonstrate gregarious settlement as larvae, whereas species that occur as isolated individuals do not. All gregarious species reject their own eggs and larvae as food, but nongregarious species consume conspecific eggs and larvae. Moreover, the rejection mechanism is species-specific in some cases. Correla tion analysis suggests that species specificity of the rejection response has a basis in siphon diameter, egg density, and larval size, but not in number of oral tentacles, or tentacle branching. One strongly cannibalistic species, Corella inflata Huntsman, avoids consuming its own eggs and newly released tadpoles by a unique brooding mechanism that involves floating eggs, negative geotaxis after hatching, and adult orientation. Key words: Ascidian; Cannibalism; Distribution; Larva; Settlement behavior INTRODUCTION Many sessile marine invertebrates, including filter-feeders such as mussels, oysters, barnacles and ascidians, occur in discrete, dense aggregations. -
Temperature and Salinity Sensitivity of the Invasive Ascidian Microcosmus Exasperatus Heller, 1878
Aquatic Invasions (2016) Volume 11, Issue 1: 33–43 DOI: http://dx.doi.org/10.3391/ai.2016.11.1.04 Open Access © 2016 The Author(s). Journal compilation © 2016 REABIC Research Article Temperature and salinity sensitivity of the invasive ascidian Microcosmus exasperatus Heller, 1878 1 1,2 Lilach Raijman Nagar and Noa Shenkar * 1Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978, Israel 2The Steinhardt Museum of Natural History and National Research Center, Tel Aviv University, Tel Aviv, Israel *Corresponding author E-mail: [email protected] Received: 5 May 2015 / Accepted: 24 November 2015 / Published online: 30 December 2015 Handling editor: Vadim Panov Abstract Environmental factors, such as temperature and salinity, are known to influence distribution patterns and invasion success in ascidians. The solitary ascidian Microcosmus exasperatus Heller, 1878 has a wide global distribution and can be found in both tropical and sub-tropical waters. In the Mediterranean Sea, it is considered to be an invasive species introduced through the Suez Canal, with a restricted distribution in the eastern Mediterranean. Despite its global distribution, the environmental tolerances of this species are poorly known. We examined the effect of varying temperature and salinity on the survival of adult individuals of M. exasperatus in a laboratory setting to partially determine its environmental tolerance range. In addition, it’s global and local distribution as well as the seasonal abundance in ‘Akko Bay (northern Mediterranean coast of Israel) were examined. Field observations and laboratory experiments show that M. exasperatus is able to tolerate a temperature range of 12–30 ºC, and salinity of 37–45, but it survived poorly in salinity of 33–35 and temperatures > 32 ºC. -
The Ascidian Styela Plicata As a Potential Bioremediator of Bacterial and Algal Contamination of Marine Estuarine Waters
THE ASCIDIAN STYELA PLICATA AS A POTENTIAL BIOREMEDIATOR OF BACTERIAL AND ALGAL CONTAMINATION OF MARINE ESTUARINE WATERS by Lisa Denham Draughon A Dissertation Submitted to the Faculty of The Charles E. Schmidt College of Science In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Florida Atlantic University Boca Raton, Florida May, 2010 Copyright by Lisa Denham Draughon 2010 ii ACKNOWLEDGEMENTS I wish to express my sincerest gratitude to those who made this research possible; Ocean Restoration Corporation Associates (ORCA), the Link Foundation, and Florida Atlantic University (FAU) for their financial fellowships, and for the many hands that played a part in getting it all done. A special thank you goes to my committee members; Dr. James X. Hartmann (chairperson) and Dr. David Binninger of FAU, Dr. Ed Proffitt and Dr. John Scarpa of Harbor Branch Oceanographic Institute at FAU, and Dr. Ray Waldner of Palm Beach Atlantic University. You were all such an integral part of helping me achieve this goal. Special thanks also go to my friend Karen Halloway- Adkins who was always willing to help locate specimens and provide equipment when she had it. Mike Calinski of ORCA made trips from the Gulf Coast to deliver specimens to me. Sherry Reed of the Smithsonian Marine Station in Ft. Pierce was extremely helpful by keeping an eye out for the tunicates and at times gathering them for me. Dr. Patricia Keating was invaluable for her help in flow-cytometry analysis. Dr. Peter McCarthy of Harbor Branch Oceanographic Institute at FAU provided the bacteria for the filtration rate experiment. -
Field and Laboratory Studies on Four Species of Sea Squirts and Their
Global Journal of Science Frontier Research: B Chemistry Volume 16 Issue 2 Version 1.0 Year 2016 Type : Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4626 & Print ISSN: 0975-5896 Field and Laboratory Studies on Four Species of Sea Squirts and their Larvae By Gaber Ahmed Saad & Abdullah Bedeer Hussein Dammam University, Saudi Arabia Abstract- The aim of this study was to characterize adult distribution with respect to light and analyze ovary contents in the four seasons of the year. The swimming behavior of Ciona intestinalis, Molgula manhattensis, Ascidella aspersa and Phallusia mammilata larvae against certain abiotic factors were commented. For the field data on adult distributions, one-way analysis of variance (ANOVA) was applied to test for differences in adult orientation, with surface orientation as a fixed factor. Two adult species (Ciona intestinalis and Molgula manhattensis) showed no orientation with respect to light while in the other two species (Ascidella aspersa and Phallusia mammilata) light exerted a significant effects on the orientation and density of individuals. To evaluate among the different species the level of gregariousness found in the field, the number of individuals per clump for each species has been compared using one-way ANOVA, with species as a fixed factor. Artificial heterologous inseminations were carried out. Keywords: field data - gregariousness - heterologous inseminations -adult orientation - larval settlement – phototaxis - geotaxis. GJSFR-B Classification : FOR Code: 069999 FieldandLaboratoryStudiesonFourSpeciesofSeaSquirtsandtheirLarvae Strictly as per the compliance and regulations of : © 2016. Gaber Ahmed Saad & Abdullah Bedeer Hussein. This is a research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0/), permitting all non commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. -
New Perspectives on the Evolution of Protochordate Sensory and Locomotory Systems, and the Origin of Brains and Heads*
doi 10.1098/rstb.2001.0974 New perspectives on the evolution of protochordate sensory and locomotory systems, and the origin of brains and heads* Thurston C. Lacalli Biology Department, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 5E2 ([email protected]) Cladistic analyses generally place tunicates close to the base of the chordate lineage, consistent with the assumption that the tunicate tail is primitively simple, not secondarily reduced from a segmented trunk. Cephalochordates (i.e. amphioxus) are segmented and resemble vertebrates in having two distinct loco- motory modes, slow for distance swimming and fast for escape, that depend on separate sets of motor neurons and muscle cells. The sense organs of both amphioxus and tunicate larvae serve essentially as navigational aids and, despite some uncertainty as to homologies, current molecular and ultrastructural data imply a close relationship between them. There are far fewer signs of modi¢cation and reduction in the amphioxus central nervous system (CNS), however, so it is arguably the closer to the ancestral condi- tion. Similarities between amphioxus and tunicate sense organs are then most easily explained if distance swimming evolved before and escape behaviour after the two lineages diverged, leaving tunicates to adopt more passive means of avoiding predation. Neither group has the kind of sense organs or sensory integration centres an organism would need to monitor predators, yet mobile predators with eyes were probably important in the early Palaeozoic. For a predator, improvements in vision and locomotion are mutually reinforcing. Both features probably evolved rapidly and together, in an `arms race'of eyes, brains and segments that left protochordates behind, and ultimately produced the vertebrate head. -
Ascidiacea (Chordata: Tunicata) of Greece: an Updated Checklist
Biodiversity Data Journal 4: e9273 doi: 10.3897/BDJ.4.e9273 Taxonomic Paper Ascidiacea (Chordata: Tunicata) of Greece: an updated checklist Chryssanthi Antoniadou‡, Vasilis Gerovasileiou§§, Nicolas Bailly ‡ Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece § Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece Corresponding author: Chryssanthi Antoniadou ([email protected]) Academic editor: Christos Arvanitidis Received: 18 May 2016 | Accepted: 17 Jul 2016 | Published: 01 Nov 2016 Citation: Antoniadou C, Gerovasileiou V, Bailly N (2016) Ascidiacea (Chordata: Tunicata) of Greece: an updated checklist. Biodiversity Data Journal 4: e9273. https://doi.org/10.3897/BDJ.4.e9273 Abstract Background The checklist of the ascidian fauna (Tunicata: Ascidiacea) of Greece was compiled within the framework of the Greek Taxon Information System (GTIS), an application of the LifeWatchGreece Research Infrastructure (ESFRI) aiming to produce a complete checklist of species recorded from Greece. This checklist was constructed by updating an existing one with the inclusion of recently published records. All the reported species from Greek waters were taxonomically revised and cross-checked with the Ascidiacea World Database. New information The updated checklist of the class Ascidiacea of Greece comprises 75 species, classified in 33 genera, 12 families, and 3 orders. In total, 8 species have been added to the previous species list (4 Aplousobranchia, 2 Phlebobranchia, and 2 Stolidobranchia). Aplousobranchia was the most speciose order, followed by Stolidobranchia. Most species belonged to the families Didemnidae, Polyclinidae, Pyuridae, Ascidiidae, and Styelidae; these 4 families comprise 76% of the Greek ascidian species richness. The present effort revealed the limited taxonomic research effort devoted to the ascidian fauna of Greece, © Antoniadou C et al. -
OREGON ESTUARINE INVERTEBRATES an Illustrated Guide to the Common and Important Invertebrate Animals
OREGON ESTUARINE INVERTEBRATES An Illustrated Guide to the Common and Important Invertebrate Animals By Paul Rudy, Jr. Lynn Hay Rudy Oregon Institute of Marine Biology University of Oregon Charleston, Oregon 97420 Contract No. 79-111 Project Officer Jay F. Watson U.S. Fish and Wildlife Service 500 N.E. Multnomah Street Portland, Oregon 97232 Performed for National Coastal Ecosystems Team Office of Biological Services Fish and Wildlife Service U.S. Department of Interior Washington, D.C. 20240 Table of Contents Introduction CNIDARIA Hydrozoa Aequorea aequorea ................................................................ 6 Obelia longissima .................................................................. 8 Polyorchis penicillatus 10 Tubularia crocea ................................................................. 12 Anthozoa Anthopleura artemisia ................................. 14 Anthopleura elegantissima .................................................. 16 Haliplanella luciae .................................................................. 18 Nematostella vectensis ......................................................... 20 Metridium senile .................................................................... 22 NEMERTEA Amphiporus imparispinosus ................................................ 24 Carinoma mutabilis ................................................................ 26 Cerebratulus californiensis .................................................. 28 Lineus ruber ......................................................................... -
Histone H1 and the Origin of Protamines
Histone H1 and the origin of protamines John D. Lewis*†,Nu´ ria Saperas†‡, Yue Song*, Maria Jose Zamora§, Manel Chiva§, and Juan Ausio´ *¶ *Department of Biochemistry and Microbiology, University of Victoria, P.O. Box 3055, Petch Building, Victoria, BC, Canada V8W 3P6; ‡Departament d’Enginyeria Quı´mica,Escola Te`cnica Superior d’Enginyers Industrials de Barcelona, Universitat Polite`cnica de Catalunya, Diagonal 647, E-08028 Barcelona, Spain; and §Departament de Cie`ncies Fisiolo`giques II, Facultat de Medicina, Campus de Bellvitge, Universitat de Barcelona, L’Hospitalet de Llobregat, E-08907 Barcelona, Spain Communicated by K. E. van Holde, Oregon State University, Corvallis, OR, December 30, 2003 (received for review August 11, 2003) We present evidence that chordate protamines have evolved from point mutations, driven by the selective advantage conferred by histone H1. During the final stages of spermatogenesis, the com- the increased efficiency of highly basic molecules to screen the paction of DNA in many organisms is accomplished by the replace- charge of DNA and thus achieve a more compact chromatin ment of histones with a class of arginine-rich proteins called structure. The relatively quick specialization of histone H1 for protamines. In other organisms, however, condensation of sperm sperm chromatin compaction is not unexpected, because sperm DNA can occur with comparable efficiency in the presence of nuclear basic proteins (SNBPs), like many of the reproductive somatic-type histones or, alternatively, an intermediate class of proteins, are among the most rapidly evolving proteins in the proteins called protamine-like proteins. The idea that the highly animal kingdom (14, 15). specialized sperm chromosomal proteins (protamines) and somatic It has been suggested that protamines did not arise from an chromosomal proteins (histones) could be related dates back al- ancient eukaryotic protein but instead have a retroviral origin most to the discovery of these proteins. -
1 Phylogeny of the Families Pyuridae and Styelidae (Stolidobranchiata
* Manuscript 1 Phylogeny of the families Pyuridae and Styelidae (Stolidobranchiata, Ascidiacea) 2 inferred from mitochondrial and nuclear DNA sequences 3 4 Pérez-Portela Ra, b, Bishop JDDb, Davis ARc, Turon Xd 5 6 a Eco-Ethology Research Unit, Instituto Superior de Psicologia Aplicada (ISPA), Rua 7 Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal 8 9 b Marine Biological Association of United Kingdom, The Laboratory Citadel Hill, PL1 10 2PB, Plymouth, UK, and School of Biological Sciences, University of Plymouth PL4 11 8AA, Plymouth, UK 12 13 c School of Biological Sciences, University of Wollongong, Wollongong NSW 2522 14 Australia 15 16 d Centre d’Estudis Avançats de Blanes (CSIC), Accés a la Cala St. Francesc 14, Blanes, 17 Girona, E-17300, Spain 18 19 Email addresses: 20 Bishop JDD: [email protected] 21 Davis AR: [email protected] 22 Turon X: [email protected] 23 24 Corresponding author: 25 Rocío Pérez-Portela 26 Eco-Ethology Research Unit, Instituto Superior de Psicologia Aplicada (ISPA), Rua 27 Jardim do Tabaco, 34, 1149-041 Lisboa, Portugal 28 Phone: + 351 21 8811226 29 Fax: + 351 21 8860954 30 [email protected] 31 1 32 Abstract 33 34 The Order Stolidobranchiata comprises the families Pyuridae, Styelidae and Molgulidae. 35 Early molecular data was consistent with monophyly of the Stolidobranchiata and also 36 the Molgulidae. Internal phylogeny and relationships between Styelidae and Pyuridae 37 were inconclusive however. In order to clarify these points we used mitochondrial and 38 nuclear sequences from 31 species of Styelidae and 25 of Pyuridae. Phylogenetic trees 39 recovered the Pyuridae as a monophyletic clade, and their genera appeared as 40 monophyletic with the exception of Pyura. -
Alien Species in the Mediterranean Sea by 2010
Mediterranean Marine Science Review Article Indexed in WoS (Web of Science, ISI Thomson) The journal is available on line at http://www.medit-mar-sc.net Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution A. ZENETOS 1, S. GOFAS 2, M. VERLAQUE 3, M.E. INAR 4, J.E. GARCI’A RASO 5, C.N. BIANCHI 6, C. MORRI 6, E. AZZURRO 7, M. BILECENOGLU 8, C. FROGLIA 9, I. SIOKOU 10 , D. VIOLANTI 11 , A. SFRISO 12 , G. SAN MART N 13 , A. GIANGRANDE 14 , T. KATA AN 4, E. BALLESTEROS 15 , A. RAMOS-ESPLA ’16 , F. MASTROTOTARO 17 , O. OCA A 18 , A. ZINGONE 19 , M.C. GAMBI 19 and N. STREFTARIS 10 1 Institute of Marine Biological Resources, Hellenic Centre for Marine Research, P.O. Box 712, 19013 Anavissos, Hellas 2 Departamento de Biologia Animal, Facultad de Ciencias, Universidad de Ma ’laga, E-29071 Ma ’laga, Spain 3 UMR 6540, DIMAR, COM, CNRS, Université de la Méditerranée, France 4 Ege University, Faculty of Fisheries, Department of Hydrobiology, 35100 Bornova, Izmir, Turkey 5 Departamento de Biologia Animal, Facultad de Ciencias, Universidad de Ma ’laga, E-29071 Ma ’laga, Spain 6 DipTeRis (Dipartimento per lo studio del Territorio e della sue Risorse), University of Genoa, Corso Europa 26, 16132 Genova, Italy 7 Institut de Ciències del Mar (CSIC) Passeig Mar tim de la Barceloneta, 37-49, E-08003 Barcelona, Spain 8 Adnan Menderes University, Faculty of Arts & Sciences, Department of Biology, 09010 Aydin, Turkey 9 c\o CNR-ISMAR, Sede Ancona, Largo Fiera della Pesca, 60125 Ancona, Italy 10 Institute of Oceanography, Hellenic Centre for Marine Research, P.O. -
Can Man Rep Fish Aquat Sci 2746 Ciona
Biological Synopsis of the Solitary Tunicate Ciona intestinalis C.E. Carver, A.L. Mallet and B. Vercaemer Science Branch Maritimes Region Ecosystem Research Division Fisheries and Oceans Canada Bedford Institute of Oceanography PO Box 1006 Dartmouth, Nova Scotia, B2Y 4A2 2006 Canadian Manuscript Report of Fisheries and Aquatic Sciences 2746 i Canadian Manuscript Report of Fisheries and Aquatic Sciences No. 2746 2006 BIOLOGICAL SYNOPSIS OF THE SOLITARY TUNICATE CIONA INTESTINALIS by C.E. Carver, A.L. Mallet and B. Vercaemer Science Branch Maritimes Region Ecosystem Research Division Fisheries and Oceans Canada Bedford Institute of Oceanography PO Box 1006 Dartmouth, Nova Scotia, B2Y 4A2 ii Think Recycling! Pensez à recycler © Minister of Public Works and Government Services Canada 1998 Cat. No. Fs. 97-6/2746E ISSN 0706-6457 Correct citation for this publication: Carver, C.E., A.L. Mallet and B. Vercaemer. 2006a. Biological Synopsis of the Solitary Tunicate Ciona intestinalis. Can. Man. Rep. Fish. Aquat. Sci. 2746: v + 55 p. iii TABLE OF CONTENTS ABSTRACT...................................................................................................................... iv RÉSUMÉ ........................................................................................................................... v 1.0 INTRODUCTION....................................................................................................... 1 1.1. NAME AND CLASSIFICATION................................................................................1 1.2. -
Title CONTRIBUTIONS to JAPANESE ASCIDIAN FAUNA. XX
CONTRIBUTIONS TO JAPANESE ASCIDIAN FAUNA. XX. -THE OUTLINE OF JAPANESE ASCIDIAN FAUNA Title AS COMPARED WITH THAT OF THE PACIFIC COASTS OF NORTH AMERICA- Author(s) Tokioka, Takasi PUBLICATIONS OF THE SETO MARINE BIOLOGICAL Citation LABORATORY (1963), 11(1): 131-156 Issue Date 1963-07-20 URL http://hdl.handle.net/2433/175319 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University CONTRIBUTIONS TO JAPANESE ASCIDIAN FAUNA. XX. THE OUTLINE OF JAPANESE ASCIDIAN FAUNA AS COMPARED WITH 1 2 THAT OF THE PACIFIC COASTS OF NORTH AMERICA. • ) T AKASI TOKIOKA Seto Marine Biological Laboratory L The outline of the ascidian fauna of the Japanese waters The review of the ascidian fauna of the Japanese waters was first made by HARTMEYER* who referred in his paper of 1906 to 43 species including a number of those that were newly established or recorded by himself form the Japanese waters. About thirty years later, the late Prof. Asajir6 0KA** made the second review (1935) on Japanese ascidian fauna as he closed his studies on ascidians for about forty years. He mentioned that there were 106 ascidian species known from the Japanese waters and that of these species endemic ones were the most abundant, though 8 arctic and 6 tropical species and 2 cosmopolitans were included. Further he divided the endemic species into two groups, the northern and southern groups; the former comprised the species occurring in the waters surrounding Hokkaido Island and the northern half of Honsyfi Island, while the latter consisted of ones living in the waters along the coasts of Kyfisyfi and Sikoku Islands and the southern half of Honsyfi Island.