The Reproductive System and Associated Organs of the Brittle-Star Ophiothrix Fragilis
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DEEP SEA LEBANON RESULTS of the 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project
DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project March 2018 DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project Citation: Aguilar, R., García, S., Perry, A.L., Alvarez, H., Blanco, J., Bitar, G. 2018. 2016 Deep-sea Lebanon Expedition: Exploring Submarine Canyons. Oceana, Madrid. 94 p. DOI: 10.31230/osf.io/34cb9 Based on an official request from Lebanon’s Ministry of Environment back in 2013, Oceana has planned and carried out an expedition to survey Lebanese deep-sea canyons and escarpments. Cover: Cerianthus membranaceus © OCEANA All photos are © OCEANA Index 06 Introduction 11 Methods 16 Results 44 Areas 12 Rov surveys 16 Habitat types 44 Tarablus/Batroun 14 Infaunal surveys 16 Coralligenous habitat 44 Jounieh 14 Oceanographic and rhodolith/maërl 45 St. George beds measurements 46 Beirut 19 Sandy bottoms 15 Data analyses 46 Sayniq 15 Collaborations 20 Sandy-muddy bottoms 20 Rocky bottoms 22 Canyon heads 22 Bathyal muds 24 Species 27 Fishes 29 Crustaceans 30 Echinoderms 31 Cnidarians 36 Sponges 38 Molluscs 40 Bryozoans 40 Brachiopods 42 Tunicates 42 Annelids 42 Foraminifera 42 Algae | Deep sea Lebanon OCEANA 47 Human 50 Discussion and 68 Annex 1 85 Annex 2 impacts conclusions 68 Table A1. List of 85 Methodology for 47 Marine litter 51 Main expedition species identified assesing relative 49 Fisheries findings 84 Table A2. List conservation interest of 49 Other observations 52 Key community of threatened types and their species identified survey areas ecological importanc 84 Figure A1. -
UNIVERSITY of KERALA Zoology Core Course
1 UNIVERSITY OF KERALA First Degree Programme in Zoology Choice Based Credit and Semester System Zoology Core Course Syllabus-2015 Admission Onwards 2 FIRST DEGREE PROGRAMME IN ZOOLOGY Scheme of Instruction and Evaluation Course Study Components Instructional Credit Duration Evaluation Total Code Hrs/week of Univ. Credit T P Exam CE ESE Semster EN1111 English I 5 4 3 Hrs 20% 80% 1111 Additional language I 4 3 3 Hrs 20% 80% EN 1121 Foundation course I 4 2 3 Hrs 20% 80% CH1131.4 Complementary course I 2 2 3 Hrs 20% 80% Complementary course I 2 16 I Practical of CH1131.4 BO1131 Complementary course II 2 2 3 Hrs 20% 80% Complementary course II 2 Practical of BO1131 ZO1141 Core Course I 3 3 3 Hrs 20% 80% Core Course Practical of ZO1141 1 EN1211 English II 4 3 3 Hrs 20% 80% EN1212 English III 5 4 3 Hrs 20% 80% 1211 Additional language II 4 3 3 Hrs 20% 80% CH1231.4 Complementary course III 2 2 3 Hrs 20% 80% II Complementary course III 2 Practical of CH1231.4 17 BO1231 Complementary course IV 2 2 3 Hrs 20% 80% Complementary course II 2 Practical of BO1231 ZO1241 Core Course II 3 3 3 Hrs 20% 80% Core Course Practical of ZO1241 1 III EN1311 English IV 5 4 3 Hrs 20% 80% EN1312 Additional language III 5 4 3 Hrs 20% 80% CH1331 Complementary course V 3 3 3 Hrs 20% 80% CH1331.4 Complementary course V 2 Practical of CH1331.4 BO1331 Complementary course VI 3 3 3 Hrs 20% 80% 17 BO1332 Complementary course VI 2 Practical of BO1331 ZO1341 Core Course III 3 3 3 Hrs 20% 80% ZO1341 Core Course Practical of ZO1341 2 IV EN1411 English V 5 4 3 Hrs 20% 80% EN1411 Additional language II 5 4 3 Hrs 20% 80% CH1431.4 Complementary course VII 3 3 3 Hrs 20% 80% CH1432.4 Complementary course 2 4 3 Hrs 20% 80% Practical of CH1131.4, CH1231.4, CH1331.4, CH1431.4. -
Marlin Marine Information Network Information on the Species and Habitats Around the Coasts and Sea of the British Isles
MarLIN Marine Information Network Information on the species and habitats around the coasts and sea of the British Isles Ophiothrix fragilis and/or Ophiocomina nigra brittlestar beds on sublittoral mixed sediment MarLIN – Marine Life Information Network Marine Evidence–based Sensitivity Assessment (MarESA) Review Eliane De-Bastos & Jacqueline Hill 2016-01-28 A report from: The Marine Life Information Network, Marine Biological Association of the United Kingdom. Please note. This MarESA report is a dated version of the online review. Please refer to the website for the most up-to-date version [https://www.marlin.ac.uk/habitats/detail/1068]. All terms and the MarESA methodology are outlined on the website (https://www.marlin.ac.uk) This review can be cited as: De-Bastos, E.S.R. & Hill, J., 2016. [Ophiothrix fragilis] and/or [Ophiocomina nigra] brittlestar beds on sublittoral mixed sediment. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. DOI https://dx.doi.org/10.17031/marlinhab.1068.1 The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available here. -
Linnaeus, 1758) (Ophiuroidea, Echinodermata)
Journal of Experimental Marine Biology and Ecology 393 (2010) 176–181 Contents lists available at ScienceDirect Journal of Experimental Marine Biology and Ecology journal homepage: www.elsevier.com/locate/jembe Sediment preference and burrowing behaviour in the sympatric brittlestars Ophiura albida Forbes, 1839 and Ophiura ophiura (Linnaeus, 1758) (Ophiuroidea, Echinodermata) Karin Boos a,⁎, Lars Gutow b, Roger Mundry c, Heinz-Dieter Franke a a Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar and Marine Research, PO Box 180, 27483 Helgoland, Germany b Alfred Wegener Institute for Polar and Marine Research, PO Box 12 01 61, 27515 Bremerhaven, Germany c Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany article info abstract Article history: Ophiura albida and Ophiura ophiura are widespread and highly abundant brittlestar species occurring Received 11 May 2010 sympatrically on soft bottoms along the western European coasts. Laboratory choice experiments revealed Received in revised form 23 July 2010 that O. albida preferred staying on fine rather than on coarse sediments, whereas O. ophiura did not Accepted 26 July 2010 distinguish between these types of sediment. Sediment-specific burrowing behaviour of the two species was investigated under different stress and food conditions in order to evaluate relations of predator avoidance Keywords: and feeding strategies with the observed sediment preference. In the presence of a predator, O. albida Brittlestars fi Burrowing burrowed preferentially in ne sediment while coarse sediment did not seem to support quick burrowing for Feeding behaviour efficient escape. Conversely, O. ophiura tended to escape the predator by fleeing across the sediment surface Predation rather than by burrowing, reflecting its unselectivity towards different sediment types. -
Key to the Common Shallow-Water Brittle Stars (Echinodermata: Ophiuroidea) of the Gulf of Mexico and Caribbean Sea
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/228496999 Key to the common shallow-water brittle stars (Echinodermata: Ophiuroidea) of the Gulf of Mexico and Caribbean Sea Article · January 2007 CITATIONS READS 10 702 1 author: Christopher Pomory University of West Florida 34 PUBLICATIONS 303 CITATIONS SEE PROFILE All content following this page was uploaded by Christopher Pomory on 21 May 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. 1 Key to the common shallow-water brittle stars (Echinodermata: Ophiuroidea) of the Gulf of Mexico and Caribbean Sea CHRISTOPHER M. POMORY 2007 Department of Biology, University of West Florida, 11000 University Parkway, Pensacola, FL 32514, USA. [email protected] ABSTRACT A key is given for 85 species of ophiuroids from the Gulf of Mexico and Caribbean Sea covering a depth range from the intertidal down to 30 m. Figures highlighting important anatomical features associated with couplets in the key are provided. 2 INTRODUCTION The Caribbean region is one of the major coral reef zoogeographic provinces and a region of intensive human use of marine resources for tourism and fisheries (Aide and Grau, 2004). With the world-wide decline of coral reefs, and deterioration of shallow-water marine habitats in general, ecological and biodiversity studies have become more important than ever before (Bellwood et al., 2004). Ecological and biodiversity studies require identification of collected specimens, often by biologists not specializing in taxonomy, and therefore identification guides easily accessible to a diversity of biologists are necessary. -
Two New Brittle Star Species of the Genus Ophiothrix
Caribbean Journal of Science, Vol. 41, No. 3, 583-599, 2005 Copyright 2005 College of Arts and Sciences University of Puerto Rico, Mayagu¨ez Two New Brittle Star Species of the Genus Ophiothrix (Echinodermata: Ophiuroidea: Ophiotrichidae) from Coral Reefs in the Southern Caribbean Sea, with Notes on Their Biology GORDON HENDLER Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, U.S.A. [email protected] ABSTRACT.—Two new species, Ophiothrix stri and Ophiothrix cimar, inhabit shallow reef-platforms and slopes in the Southern Caribbean, and occur together at localities in Costa Rica and Panama, nearly to Colombia. What appears to be an undescribed species resembling O. cimar has been reported from eastern Venezuela. In recent years, reefs where the species were previously observed have deteriorated because of environmental degradation. As a consequence, populations of the new species may have been reduced or eradicated. The new species have previously been mistaken for O. angulata, O. brachyactis, and O. lineata. Ophiothrix lineata, O. stri, and O. cimar have in common a suite of morphological features pointing to their systematic affinity, and a similar pigmentation pattern consisting of a thin, dark, medial arm stripe flanked by two pale stripes. Ophiothrix lineata is similar to Indo-Pacific members of the subgenus Placophiothrix and closely resembles Ophiothrix stri. The latter is extremely similar to O. synoecina, from Colombia, and both can live in association with the rock-boring echinoid Echinometra lucunter. Although O. synoecina is a protandric hermaphrodite that reportedly broods its young externally, the new species are gonochoric and do not brood. -
Aggregations of Brittle Stars Can Provide Similar Ecological Roles As Mussel Reefs
Aggregations of brittle stars can provide similar ecological roles as mussel reefs Geraldi, N. R., Bertolini, C., Emmerson, M. C., Roberts, D., Sigwart, J. D., & O'Connor, N. E. (2017). Aggregations of brittle stars can provide similar ecological roles as mussel reefs. MARINE ECOLOGY- PROGRESS SERIES, 563, 157-167. https://doi.org/10.3354/meps11993 Published in: MARINE ECOLOGY-PROGRESS SERIES Document Version: Peer reviewed version Queen's University Belfast - Research Portal: Link to publication record in Queen's University Belfast Research Portal Publisher rights © 2017 Inter-Research. This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher. General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact [email protected]. Download date:28. Sep. 2021 Aggregations of brittle stars can provide similar ecological roles as mussel reefs. Nathan R. Geraldi1,2,3*, Camilla Bertolini1,2 Mark C. Emmerson1,2, Dai Roberts1,2, Julia D. -
Petition for Revised State Water Quality Standards For
PETITION FOR REVISED STATE WATER QUALITY STANDARDS FOR MARINE PH UNDER THE CLEAN WATER ACT, 33 U.S.C. § 1313(C)(4) BEFORE THE ENVIRONMENTAL PROTECTION AGENCY OCTOBER 18, 2012 Petitioner The Center for Biological Diversity is a nonprofit environmental organization dedicated to the protection of imperiled species and their habitats through science, education, policy, and environmental law. The Center has over 450,000 members and online activists. The Center submits this petition on its own behalf and on behalf of its members and staff. The Center for Biological Diversity’s contact information is: Center for Biological Diversity 351 California St., Ste. 600 San Francisco, CA 94104 Tel: 415‐436‐9682 Fax: 415‐436‐9683 Respectfully submitted, ______________________ Emily Jeffers Staff Attorney Oceans Program [email protected] Right to Petition The right of an interested party to petition a federal agency is a freedom guaranteed by the first amendment: “Congress shall make no law … abridging the … right of people … to petition the Government for redress of grievances.” U.S. Const., Amend I. See also United Mine Workers v. Illinois State Bar Ass’n, 389 U.S. 217, 222 (1967) (right to petition for redress of grievances is among most precious of liberties without which the government could erode rights). Under the Administrative Procedures Act (APA), all citizens have the right to petition for the “issuance, amendment, or repeal” of an agency rule. 5 U.S.C. § 553(e). A “rule” is the “whole or a part of an agency statement of general or particular applicability and future effect designed to implement, interpret, or prescribe law or policy.” 5 U.S.C. -
Marine Ecology Progress Series 525:127
Vol. 525: 127–141, 2015 MARINE ECOLOGY PROGRESS SERIES Published April 9 doi: 10.3354/meps11169 Mar Ecol Prog Ser Trophic niche of two co-occurring ophiuroid species in impacted coastal systems, derived from fatty acid and stable isotope analyses Aline Blanchet-Aurigny1,*, Stanislas F. Dubois1, Claudie Quéré2, Monique Guillou3, Fabrice Pernet2 1IFREMER, Laboratoire d’Ecologie Benthique, Département Océanographie et Dynamique des Ecosystèmes, Centre de Bretagne, BP70, 29280 Plouzané, France 2IFREMER, Laboratoire de Physiologie Fonctionnelle des Organismes Marins, LEMAR UMR CNRS IRD 6539, Centre de Bretagne, BP70, 29280 Plouzané, France 3Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, LEMAR UMR CNRS IRD 6539, place Nicolas Copernic, 29280 Plouzané, France ABSTRACT: The trophic niches of 2 common co-occurring ophiuroids, Ophiocomina nigra and Ophiothrix fragilis (Echinodermata, Ophiuroidea), in 2 contrasting coastal systems of Brittany (France) were investigated. We used a combination of fatty acid biomarkers derived from neutral lipids and stable isotopic compositions to explore the contributions of oceanic versus continental inputs to the ophiuroids’ diet. We investigated 2 different systems with an inshore versus offshore comparison. We sampled potential food sources and surveyed organisms every 2 mo for 1 yr. Spatio-temporal variations in stable isotopes and fatty acid profiles of the ophiuroids were gener- ally low compared to interspecific differences. Fatty acid markers showed that both ophiuroids relied on diatom inputs. However, a more δ15N-enriched isotopic composition as well as a more balanced plant- versus animal-derived fatty acid composition in O. nigra suggest that a broader range of food sources are being used by this species irrespective of location or sampling time. -
Ophiothrix Fragilis (Abildgaard in O.F
Ophiothrix fragilis (Abildgaard in O.F. Müller, 1789) AphiaID: 125131 OFIÚRO Animalia (Reino) >Echinodermata (Filo) >Asterozoa (Subfilo) >Ophiuroidea (Classe) >Myophiuroida (Subclasse) >Metophiurida (Infraclasse) > Ophintegrida (Superordem) > Amphilepidida (Ordem) > Gnathophiurina (Subordem) > Gnathophiurina (Infraordem) > Ophiactoidea (Superfamilia) > Ophiotrichidae (Familia) Bruno Van Bogaert mnolito - iNaturalist.org Sinónimos Asteria cuvierii Delle Chiaje, 1828 Asteria ferussacii Delle Chiaje, 1828 Asterias echinata Delle Chiaje, 1828 Asterias fragilis Abildgaard in O.F. Müller, 1789 Asterias pentaphylla Pennant, 1777 Asterias rubra Delle Chiaje, 18?? Ophiocoma minuta Forbes, 1839 Ophiocoma rosula Forbes, 1839 Ophiothrix alba Grube, 1857 Ophiothrix alopecurus Müller & Troschel, 1842 Ophiothrix cuvierii (Delle Chiaje, 1828) Ophiothrix echinata (Delle Chiaje, 1828) Ophiothrix ferussacii (Delle Chiaje, 1828) Ophiothrix fragilis var. abildgaardi Koehler, 1921 1 Ophiothrix fragilis var. echinata (Delle Chiaje, 1828) Ophiothrix fragilis var. lusitanica Ljungman, 1872 Ophiothrix fragilis var. pentaphyllum Pennant, 1777 Ophiothrix lusitanica Ljungman, 1872 Ophiothrix pentaphylla (Pennant, 1777) Ophiothrix rammelsbergii Müller & Troschel, 1842 Ophiothrix rubra Ljungman, 1872 Ophiothrix rubra Ljungman, 1872 Ophiura scutellum Grube, 1840 Referências additional source Hansson, H. (2004). North East Atlantic Taxa (NEAT): Nematoda. Internet pdf Ed. Aug 1998., available online at http://www.tmbl.gu.se/libdb/taxon/taxa.html [details] additional source -
Dental Insights Into Ophiuroids: Feeding Mechanisms and Life Style
Dental insights into ophiuroids: Feeding mechanisms and life style Karin Boos Biologische Anstalt Helgoland/ Alfred Wegener Institut for Polar and Marine Research, PO Box 180, 27483 Helgoland; [email protected] Ophiuroid echinoderms are highly specific towards different habitats reflecting lifestyles and feeding mechanisms. Previous studies have considered ophiuroids to be generally omnivorous macro- or microphageous feeders. According to their lifestyle, however, different feeding mechanisms may have evolved e.g. deposit feeding, filter feeding or predation. Most ophiuroids typically show more than one feeding mechanism along with their main feeding mode. In the present study, the morphology of teeth and associated papillae on individual jaw elements (see figure right) from ophiuroids performing different lifestyles (epibenthic, infaunal or epibenthic-cryptic) are compared and discussed in relation to reported feeding mechanisms and diets (for explanation on teeth and papillae see numbers in the pictures and adjacent text sections). Schematic overview of the ‚mouth‘ side of an ophiuroid (from Hayward and Ryland, 1996) MACROPHAGEOUS and a single jaw element. The epibethic: predators, scavengers and deposit feeders 3 Ophiura albida has three conical infradental papillae1 and two or three broadened 2 1 oral papillae located along 2 the lateral sides of the jaw plates. Long and strongly 3 pointed sharp teeth3 are found 3 down the vertical jaw edges. Epibenthic lifestyle of Ophiura albida Forbes, Top view of one jaw element in Ophiura Oblique view on the mouth in Ophiura Lateral view of jaws with teeth in Ophiura 1839; Photo by Encyclopedia of Marine Life albida. albida. albida. of Britain and Ireland MICROPHAGEOUS a) The infaunal: surface and sub-surface deposit feeders, filter feeder, suspension feeder 3 Amphiura filiformis and Acrocnida brachiata both 3 have a pair of slightly rounded infradental 1 1 1 1 papillae1, as well as two pairs of long and pointy 2 2 2 (A. -
Behavior and Functional Morphology of Respiration in The
BEHAVIOR AND FUNCTIONAL MORPHOLOGY OF RESPIRATION IN THE BASKET STAR, GORGONOCEPHALUS EUCNEMIS AND TWO BRITTLE STARS IN THE GENUS OPHIOTHRIX. by MACKENNA A. H. HAINEY A THESIS Presented to the Department of Biology and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Master of Science September 2018 THESIS APPROVAL PAGE Student: MacKenna A. H. Hainey Title: Behavior and Functional Morphology of Respiration in the Basket Star, Gorgonocephalus eucnemis and Two Brittle Stars in the Genus Ophiothrix This thesis has been accepted and approved in partial fulfillment of the requirements for the Master of Science degree in the Department of Biology by: Richard B. Emlet Advisor Alan L. Shanks Member Maya Watts Member and Janet Woodruff-Borden Vice Provost and Dean of the Graduate School Original approval signatures are on file with the University of Oregon Graduate School. Degree awarded September 2018 ii © 2018 MacKenna A. H. Hainey This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike (United States) License. iii THESIS ABSTRACT MacKenna A. H. Hainey Master of Science Department of Biology September 2018 Title: Behavior and Functional Morphology of Respiration in the Basket Star, Gorgonocephalus eucnemis and Two Brittle Stars in the Genus Ophiothrix Gorgonocephalus eucnemis, Ophiothrix suensonii and Ophiothrix spiculata are aerobic Echinoderms. Previous observations on the anatomy of these two genera state five pairs of radial shields and genital plates are responsible for regulating the position of the roof of the body disc and the flushing of water in and out of the bursae.