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Phylogeny of the Sea Hares in the Aplysia Clade Based on Mitochondrial DNA Sequence Data
Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title Phylogeny of the sea hares in the aplysia clade based on mitochondrial DNA sequence data Permalink https://escholarship.org/uc/item/0fv9g804 Authors Medina, Monica Collins, Timothy Walsh, Patrick J. Publication Date 2004-02-20 Peer reviewed eScholarship.org Powered by the California Digital Library University of California PHYLOGENY OF THE SEA HARES IN THE APLYSIA CLADE BASED ON 1,2 MITOCHONDRIAL DNA SEQUENCE DATA MÓNICA MEDINA , TIMOTHY 3 1 COLLINS , AND PATRICK J. WALSH 1 Rosenstiel School of Marine and Atmospheric Science, Division of Marine Biology and Fisheries, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149 USA. RUNNING HEAD: Aplysia mitochondrial phylogeny 2 present address: Joint Genome Institute, 2800 Mitchell Drive B400, Walnut Creek, CA 94598 e-mail: [email protected] phone: (925)296-5633 fax: (925)296-5666 3 Department of Biological Sciences, Florida International University, University Park, Miami, FL 33199 USA ABSTRACT Sea hare species within the Aplysia clade are distributed worldwide. Their phylogenetic and biogeographic relationships are, however, still poorly known. New molecular evidence is presented from a portion of the mitochondrial cytochrome oxidase c subunit 1 gene (cox1) that improves our understanding of the phylogeny of the group. Based on these data a preliminary discussion of the present distribution of sea hares in a biogeographic context is put forward. Our findings are consistent with only some aspects of the current taxonomy and nomenclatural changes are proposed. The first, is the use of a rank free classification for the different Aplysia clades and subclades as opposed to previously used genus and subgenus affiliations. -
Antimicrobial Activity of the Sea Hare (Aplysia Fasciata )
Egyptian Journal of Aquatic Biology & Fisheries Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt. ISSN 1110 – 6131 Vol. 24(4): 233–248 (2020) www.ejabf.journals.ekb.eg Antimicrobial activity of the sea hare (Aplysia fasciata) collected from the Egyptian Mediterranean Sea, Alexandria Hassan A. H. Ibrahim1, Mohamed S. Amer1*, Hamdy O. Ahmed2 and Nahed A. Hassan3 1Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Alexandria, Egypt. 2Marine invertebrates Department, NIOF, Alexandria, Egypt. 3Zoology Department, Faculty of science, Mansoura University, Egypt. *Corresponding Author: [email protected] _______________________________________________________________________________________ ARTICLE INFO ABSTRACT Article History: A species of sea hare was collected from the Mediterranean Sea, Received: May 12, 2020 Alexandria, Egypt. It was identified based on general morphological and Accepted: May 30, 2020 anatomical features as Aplysia fasciata. The antibacterial and antifungal Online: June 2020 activities were investigated via the standard techniques. Data obtained _______________ revealed that the highest antibacterial activity was detected against P. aeruginosa (AU = 3.4), followed by E. coli (AU = 2.9), then by B. Keywords: subtlis (AU = 2.7). The other bacterial pathogens were not affected at all. Antimicrobial activity, Likewise, the maximum fungal suppression, via the pouring method, was Sea hare, observed against P. crustosum (50%). AUs against both F. solani and A. Aplysia fasciata, niger were 20 and 10%, respectively, while there was no activity recorded Mediterranean Sea. against the others. Also, the antifungal activity via the well-cut diffusion method conducted that the highest AU (6.8) was recorded against A. flavus, followed by AU = 4.8 against F. solani, then 1.8 against P. -
Influence of Proximal Stimuli on Swimming in the Sea Hare Aplysia Brasiliana
Journal of Experimental Marine Biology and Ecology 288 (2003) 223–237 www.elsevier.com/locate/jembe Influence of proximal stimuli on swimming in the sea hare Aplysia brasiliana Thomas H. Carefoota,*, Steven C. Penningsb a Department of Zoology, University of British Columbia, Vancouver, B.C., Canada b Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA Received 22 August 2002; received in revised form 20 November 2002; accepted 30 December 2002 Abstract Although the neurobiology and physiology of sea hares are extensively studied, comparatively little is known about their behaviour or ecology. Several species of sea hares swim, but the function of swimming is unclear. In this paper, we tested the hypotheses that swimming in Aplysia brasiliana serves to find food and mates, and to escape predators. Our data strongly support the hypothesis that swimming in A. brasiliana is related to feeding. Sea hares deprived of food overnight swam 12 times longer than ones that had been fed. When sea hares contacted food while swimming they invariably stopped, while those contacting a plastic algal mimic mostly continued to swim. Our experiments provided no evidence to support the hypothesis that swimming in sea hares is related to social behaviour. Sea hares deprived of copulatory mates for 3 days did not swim longer than ones held in copulating groups. Moreover, swimming sea hares never stopped swimming upon en- countering a conspecific. Our experiments also supported the hypothesis that swimming in sea hares is related to predation. Sea hares stimulated with a standardised tail pinch and exposed to ink of conspecifics swam four times longer than control individuals, and tail-pinched sea hares that released ink swam five times longer than ones that did not release ink. -
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. -
Mollusc World Magazine
IssueMolluscWorld 24 November 2010 Glorious sea slugs Our voice in mollusc conservation Comparing Ensis minor and Ensis siliqua THE CONCHOLOGICAL SOCIETY OF GREAT BRITAIN AND IRELAND From the Hon. President Peter has very kindly invited me to use his editorial slot to write a piece encouraging more members to play an active part in the Society. A few stalwarts already give very generously of their time and energy, and we are enormously grateful to them; but it would be good to spread the load and get more done. Some of you, I know, don’t have enough time - at least at the moment - and others can’t for other reasons; but if you do have time and energy, please don’t be put off by any reluctance to get involved, or any feeling that you don’t know enough. There are many ways in which you can take part – coming to meetings, and especially field meetings; sending in records; helping with the records databases and the website; writing for our publications; joining Council; and taking on one of the officers’ jobs. None of us know enough when we start; but there’s a lot of experience and knowledge in the Society, and fellow members are enormously helpful in sharing what they know. Apart from learning a lot, you will also make new friends, and have a lot of fun. The Society plays an important part in contributing to our knowledge of molluscs and to mollusc conservation, especially through the database on the National Biodiversity Network Gateway (www.nbn.org.uk); and is important also in building positive links between professional and amateur conchologists. -
New Records of Opisthobranchs (Mollusca: Gastropoda) from Gulf of Mannar, India
Indian Journal of Geo Marine Sciences Vol. 48 (10), October 2019, pp. 1508-1515 New records of Opisthobranchs (Mollusca: Gastropoda) from Gulf of Mannar, India J.S. Yogesh Kumar1, C. Venkatraman2, S. Shrinivaasu3 and C. Raghunathan2 1Marine Aquarium and Regional Centre, Zoological Survey of India, (MoEFCC), Government of India, Digha, West Bengal, India. 2Zoological Survey of India, M Block, New Alipore, Kolkata, West Bengal, India. 3National Centre for Sustainable Coastal Management, Koodal Building, Anna University Campus Chennai 600 025, Tamil Nadu. *[E-mail: [email protected]] Received 25 April 2018; revised 24 July 2018 An extensive survey was carried out to explore the Opisthobranchs and associated faunal community in and around the Gulf of Mannar Marine Biosphere Reserve (GoMBR), South-east coast of India, resulted eight species (Aplysia juliana, Goniobranchus annulatus, Goniobranchus cavae, Goniobranchus collingwoodi, Goniobranchus conchyliatus, Dendrodoris albobrunnea, Elysia nealae, and Thecacera pacifica) which are new records to Indian coastal waters and GoMBR respectively. The detailed description, distribution and morphological characters are presented in this manuscript. [Keywords: Opisthobranchs; Nudibranches; Molluscs; Gulf of Mannar; South-east coast India.] Introduction (Fig. 1) during 2017 to 2018 with the help of SCUBA Gulf of Mannar Marine Biosphere Reserve (GoMBR) diving gears in different sub-tidal regions. is a shallow bay, located in the south-eastern tip of India Ophisthobranchs were observed, photographed and and the west coast of Sri Lanka, in the Indian Ocean. collected for further morphological identification. The The Gulf of Mannar consists of 21 islands and has an collected specimens were fixed initially in mixture of aggregate 10,500 km2 area (Lat. -
Proceedings of the 1St Mediterranean Symposium on the Non-Indigenous Species
PROCEEDINGS OF THE 1st MEDITERRANEAN SYmpOSIUM ON THE NON-INDIGENOUS SPECIES ANTALYA, TURKEY, 17-18 JANUARY 2019 Technical partner Financial support Legal notice: The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the Specially Protected Areas Regional Activity Centre (SPA/RAC) and UN Environment/Mediterranean Action Plan (MAP) concerning the legal status of any State, Territory, city or area, or of its authorities, or concerning the delimitation of their frontiers or boundaries. Copyright: All property rights of texts and content of different types of this publication belong to SPA/RAC. Reproduction of these texts and contents, in whole or in part, and in any form, is prohibited without prior written permission from SPA/RAC, except for educational and other non-commercial purposes, provided that the source is fully acknowledged. © 2018 - United Nations Environment Programme Mediterranean Action Plan Specially Protected Areas Regional Activity Centre (SPA/RAC) Boulevard du Leader Yasser Arafat B.P. 337 1080 Tunis Cedex - Tunisia. E-mail : [email protected] For bibliographic purposes, this document may be cited as: UNEP/MAP – SPA/RAC, 2019. Proceedings of the 1st Mediterranean Symposium on the Non-Indigenous Species (Antalya, Turkey, 18 January 2019). LANGAR H., OUERGHI A., edits, SPA/RAC publi., Tunis, 116 p. ISBN 978-9938-9574-7-1 With the financial support of MAVA foundation through the MedKeyHabitats II project. Available at: www.spa-rac.org -
Title/Name of the Area: MCA Presented by Maria Ana Dionísio
Title/Name of the area: MCA Presented by Maria Ana Dionísio (PhD in marine sciences), with a grant funded by Oceanário de Lisboa, S.A., FCiências.ID – Associação para a Investigação e Desenvolvimento de Ciências and Instituto da Conservação da Natureza e das Florestas, I.P., [email protected] Pedro Ivo Arriegas, Instituto da Conservação da Natureza e das Florestas, I.P., [email protected] Abstract MCA (Mainland Canyons Area) EBSA is compounded by a total of 11 canyons, 4 seamounts and one archipelago, and this area includes one OSPAR Marine Protected Area, one Protected Area, one UNESCO Biosphere Reserve, one Natura 2000 Site of Community Interest and 5 Natura 2000 Special Protection Areas for wild birds. The EBSA is divided by 3 sections, North MCA (32786 Km2), Center MCA (48048 Km2) and South MCA (29099 Km2). The structures in the EBSA are hotspots of marine life and in general they represent areas of an enhanced productivity, especially when compared with nearby areas. This EBSA has a total area of 109933 km2 with identified structures depths ranging from 50m (head of Nazaré canyon) to ~5000m (bottom of Nazaré canyon). The area presents particular features which make it eligible as an EBSA when assessed against the EBSA scientific criteria. All structures included in the MCA EBSA fulfill four or more out of the seven EBSA scientific criteria. A total of 3411 species are listed to the area, with 776 specifically recorded for different EBSA structures. From the total of species recorded 11% are protected under international or regional law. The EBSA is totally under Portuguese national jurisdiction, with its structures located on territorial waters and on the Portuguese Economic Exclusive Zone (EEZ). -
An Annotated Checklist of the Marine Molluscs of the South Adriatic Sea (Montenegro) and a Comparison with Those of Neighbouring Areas
www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 17: 921-934 (2017) DOI: 10.4194/1303-2712-v17_5_08 RESEARCH PAPER An Annotated Checklist of the Marine Molluscs of the South Adriatic Sea (Montenegro) and a Comparison with Those of Neighbouring Areas Slavica Petović1,*, Slađana Gvozdenović1, Zdravko Ikica1 1 Institute of Marine Biology, Dobrota bb, 85330 Kotor, Montenegro * Corresponding Author: Tel.: +38.263 204926; Fax: +38.232 334570; Received 19 July 2016 E-mail: [email protected] Accepted 16 February 2017 Abstract Published literature on the molluscs of Montenegro (South Adriatic Sea) is still very scarce. As a baseline for future studies that will enhance the knowledge of this fauna, we have compiled a checklist combining the existing published data with original data from a recent research. Examination of sampled material and a review of the relevant literature revealed the presence of 354 mollusc species. Twelve species have been recorded for the first time in Montenegrin waters, 7 species are of non-native origin while 14 taxa are recognized as endangered and threatened, according to the IUCN Red List and the Barcelona/Berne Conventions. A comparison of our results with those of the neighbouring seas indicates that mollusc fauna is insufficiently studied, but we should bear in mind that the number of recorded species in relation to the size of the researched area points to a rich malacofauna zone. Keywords: Marine molluscs, checklist, alien species, Montenegro, Adriatic Sea. Introduction From a geomorphologic viewpoint, the Montenegrin coast can be divided into two main Molluscs are important components of marine parts: the Bay of Boka Kotorska and the open sea. -
A Test of Novel Function(S) for the Ink of Sea Hares
Journal of Experimental Marine Biology and Ecology, L 234 (1999) 185±197 A test of novel function(s) for the ink of sea hares Thomas H. Carefoota,* , Steven C. Pennings b , Jean Paul Danko a aDepartment of Zoology, University of British Columbia, 6270 University Blvd, Vancouver, BC V6T 1Z4, Canada bMarine Institute, University of Georgia, Sapelo Island, GA 31327, USA Received 12 March 1998; received in revised form 20 August 1998; accepted 21 August 1998 Abstract Most sea hares (Opisthobranchia: Anaspidea) release a purple ink when physically disturbed. The ink has been hypothesized to function to excrete unwanted byproducts of metabolism, as a smoke screen, as an anti-feedant, and as a warning signal. We tested two additional potential functions: that ink is a metabolic depressant and/or a noxious or adversive sensory stimulus. When exposed to realistic concentrations of ink from Aplysia dactylomela (Rang), none of ®ve invertebrate species (including A. dactylomela) or two ®sh species signi®cantly altered their oxygen uptake, and neither of two crab species signi®cantly altered their heart and/or scaphog- nathite beat rates, suggesting that ink does not function as a metabolic depressant. In contrast, although A. dactylomela did not display strong behavioural responses to ink, behaviour of seven other invertebrates and both ®sh species was strongly affected by ink, supporting our hypothesis that the ink functions as an irritant. Observed behavioural changes included bristle erection by ®reworms, increased mucus production by an opisthobranch, reduced feeding behaviour, increased grooming behaviour, and temporary pauses in heart and scaphognathite beating by crabs, reduced and increased activity by cryptic and exposed sea urchin species, respectively, and rapid swimming by ®sh. -
Two Seas for One Great Diversity: Checklist of the Marine Heterobranchia (Mollusca; Gastropoda) from the Salento Peninsula (South-East Italy)
diversity Article Two Seas for One Great Diversity: Checklist of the Marine Heterobranchia (Mollusca; Gastropoda) from the Salento Peninsula (South-East Italy) Giulia Furfaro 1,* , Fabio Vitale 2,3 , Cataldo Licchelli 2,4 and Paolo Mariottini 5 1 Department of Biological and Environmental Sciences and Technologies—DiSTeBA, University of Salento, I-73100 Lecce, Italy 2 Salento Sommerso Association, I-73100 Lecce, Italy; [email protected] (F.V.); [email protected] (C.L.) 3 Museum of Natural History of Salento, I-73021 Calimera-Lecce, Italy 4 Cooperativa Hydra, I-73100 Lecce, Italy 5 Department of Science, University of Roma Tre, I-00146 Rome, Italy; [email protected] * Correspondence: [email protected] Received: 18 March 2020; Accepted: 24 April 2020; Published: 26 April 2020 Abstract: The Salento peninsula is a portion of the Italian mainland separating two distinct Mediterranean basins, the Ionian and the Adriatic seas. Several authors have studied the marine Heterobranchia (Mollusca, Gastropoda) fauna composition living in the Ionian Sea, but to date further knowledge regarding this interesting group of mollusks is still needed. Recent studies have corroborated the peculiarity of the Mediterranean Sea showing high levels of endemism and cryptic diversity. On the other hand, marine sea slugs have been revealed to be important indicators of the marine ecosystem’s health, due to their species-specific diet that consist of a vast variety of sessile and benthic invertebrates. A baseline study of the marine Heterobranchia diversity is therefore a necessary step to reveal the hidden diversity and to monitor the possible presence of alien species. The present study shows results from approximately 600 scientific dives carried out during a nine-year period in all of the main submarine habitats of the studied area, while accounting for the marine Heterobranchia from both the Ionian and Adriatic Seas. -
United States National Museum
':''-•:••, : '' ''' i' SSI VP mm Hi MMm SMITHSONIAN INSTITUTION UNITED STATES NATIONAL MUSEUM BULLETIN 239 WASHINGTON, D.C. 1964 MUSEUM OF NATURAL HISTORY The Recent Mollusca of Augustus Addison Gould Illustrations of the Types Described by Gould With a Bibliography and Catalog of His Species RICHARD I. JOHNSON Museum of Comparative Zoology SMITHSONIAN INSTITUTION WASHINGTON, D.C. • 1964 Publications of the United States National Museum The scientific publications of the United States National Museum include two series, Proceedings of the United States National Museum and United States National Museum Bulletin. In these series are published original articles and monographs dealing with the collections and work of the Museum and setting forth newly acquired facts in the fields of anthropology, biology, geology, history, and technology. Copies of each publication are distributed to libraries and scientific organizations and to specialists and others interested in the different subjects. The Proceedings, begun in 1878, are intended for the publication, in separate form, of shorter papers. These are gathered in volumes, octavo in size, with the publication date of each paper recorded in the table of contents of the volume. In the Bulletin series, the first of which was issued in 1875, appear longer, separate publications consisting of monographs (occasionally in several parts) and volumes in which are collected works on related subjects. Bulletins are either octavo or quarto in size, depending on the needs of the presentation. Since 1902 papers relating to the botanical collections of the Museum have been published in the Bulletin series under the heading Contributions from the United States National Herbarium.