Study of Mnemiopsis Leidyi Diet and Reproduction in the Southern Coasts of Caspian Sea
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Author's Personal Copy
Author's personal copy 554 Book reviews Fifty Years of Invasion Ecology – The Legacy of Charles The 30 chapters are well written, and David Richardson Elton. D.M. Richardson (ed.). Wiley-Blackwell, Oxford did an excellent job in editing the diverse contributions of 51 (2011). 432 pp., £45 (paperback), £95 (hardcover), authors, most of them from North America, South Africa, and ISBN: 978-1-4443-3586-6 (paperback), 978-1-4443-3585- Australia. Asia and South America are not represented by any 9 (hardcover) contribution, and European researchers are underrepresented. Most chapters are relatively short, with an easily accessible This book is intended for all scientists and students inter- essay style. This comes at the expense of presentation of ested in biological invasions. It is based on a conference held original data, mirrored by rather few tables and figures. On in South Africa in 2008 to celebrate the 50th anniversary of the other hand, we applaud the possibility to download illus- the famous volume by Charles S. Elton on ‘The Ecology of trations from a companion website. The book is technically Invasions by Animals and Plants’. When a scientific disci- well done; virtually no typos could be spotted, and the over- pline starts exploring its history, defines terms and reviews lap among individual chapters is minimal. The terminology, achievements, this can be a sign of maturity, yet invasion for example on ‘alien’ and ‘non-indigenous’ species (chap- ecology continues to develop in a positive and dynamic way. ters 1 and 4), is not fully consistent, but this should not be The research dynamics in this field are enormous, building on taken too seriously. -
Sharkcam Fishes
SharkCam Fishes A Guide to Nekton at Frying Pan Tower By Erin J. Burge, Christopher E. O’Brien, and jon-newbie 1 Table of Contents Identification Images Species Profiles Additional Info Index Trevor Mendelow, designer of SharkCam, on August 31, 2014, the day of the original SharkCam installation. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition by Erin J. Burge, Christopher E. O’Brien, and jon-newbie is licensed under the Creative Commons Attribution-Noncommercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/. For questions related to this guide or its usage contact Erin Burge. The suggested citation for this guide is: Burge EJ, CE O’Brien and jon-newbie. 2020. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition. Los Angeles: Explore.org Ocean Frontiers. 201 pp. Available online http://explore.org/live-cams/player/shark-cam. Guide version 5.0. 24 February 2020. 2 Table of Contents Identification Images Species Profiles Additional Info Index TABLE OF CONTENTS SILVERY FISHES (23) ........................... 47 African Pompano ......................................... 48 FOREWORD AND INTRODUCTION .............. 6 Crevalle Jack ................................................. 49 IDENTIFICATION IMAGES ...................... 10 Permit .......................................................... 50 Sharks and Rays ........................................ 10 Almaco Jack ................................................. 51 Illustrations of SharkCam -
Population Dynamics and Predation Impact of the Introduced Ctenophore Mnemiopsis Leidyi in the Gullmars Fjord, West Coast of Sweden
POPULATION DYNAMICS AND PREDATION IMPACT OF THE INTRODUCED CTENOPHORE MNEMIOPSIS LEIDYI IN THE GULLMARS FJORD, WEST COAST OF SWEDEN Lene Friis Møller & Peter Tiselius Dep. Of Marine Ecology – Kristineberg University of Gothenburg The Gullmar Fjord Always stratified Well-documented Rich and diverse fauna Kristineberg Also many jellies Cnidarians Aurelia aurita Cyanea capillata Many hydromedusae Ctenophores Pleurobrachia pileus Bolinopsis infundibulum Beroe cucumis Beroe gracilis What is dominating has now changed.... Mnemiopsis leidyi - invasive ctenophore Native species along the Eats zooplankton American East Coast (and fish eggs) Invaded northern Europe in 2005/2006 High reproduction Most famous for its invasion into the Black Sea in the 80´s Given the rapid growth and high reproductive output of the Mnemiopsis, severe effects on its prey populations may be expected It is impossible to predict the outcome of the introduction into Swedish waters based on observations from other areas – both potential prey and predators differ It is therefore necessary to investigate the development and impact of Mnemiopsis locally Mnemiopsis studies in the Gullmar Fjord In the current project we study the development of the Mnemiopsis population in the Gullmar fjord by regular sampling from March 2007 to present (for long periods every week) (+ zooplankton, chl a, primary production, CTD) x Biomass (g wet weight m-3) 10 20 30 40 50 60 70 80 90 0 17‐Jun‐07 6‐Aug‐07 25‐Sep‐07 2009 2008 2007 14‐Nov‐07 3‐Jan‐08 22‐Feb‐08 Mnemiopsis biomass 12‐Apr‐08 2007-2009 1‐Jun‐08 21‐Jul‐08 9‐Sep‐08 29‐Oct‐08 18‐Dec‐08 6‐Feb‐09 28‐Mar‐09 17‐May‐09 6‐Jul‐09 25‐Aug‐09 14‐Oct‐09 3‐Dec‐09 22‐Jan‐10 Development Oral/aboral Rapoza et al. -
Changing Jellyfish Populations: Trends in Large Marine Ecosystems
CHANGING JELLYFISH POPULATIONS: TRENDS IN LARGE MARINE ECOSYSTEMS by Lucas Brotz B.Sc., The University of British Columbia, 2000 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in The Faculty of Graduate Studies (Oceanography) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) October 2011 © Lucas Brotz, 2011 Abstract Although there are various indications and claims that jellyfish have been increasing at a global scale in recent decades, a rigorous demonstration to this effect has never been presented. As this is mainly due to scarcity of quantitative time series of jellyfish abundance from scientific surveys, an attempt is presented here to complement such data with non- conventional information from other sources. This was accomplished using the analytical framework of fuzzy logic, which allows the combination of information with variable degrees of cardinality, reliability, and temporal and spatial coverage. Data were aggregated and analysed at the scale of Large Marine Ecosystem (LME). Of the 66 LMEs defined thus far, which cover the world’s coastal waters and seas, trends of jellyfish abundance (increasing, decreasing, or stable/variable) were identified (occurring after 1950) for 45, with variable degrees of confidence. Of these 45 LMEs, the overwhelming majority (31 or 69%) showed increasing trends. Recent evidence also suggests that the observed increases in jellyfish populations may be due to the effects of human activities, such as overfishing, global warming, pollution, and coastal development. Changing jellyfish populations were tested for links with anthropogenic impacts at the LME scale, using a variety of indicators and a generalized additive model. Significant correlations were found with several indicators of ecosystem health, as well as marine aquaculture production, suggesting that the observed increases in jellyfish populations are indeed due to human activities and the continued degradation of the marine environment. -
Articles and Plankton
Ocean Sci., 15, 1327–1340, 2019 https://doi.org/10.5194/os-15-1327-2019 © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License. The Pelagic In situ Observation System (PELAGIOS) to reveal biodiversity, behavior, and ecology of elusive oceanic fauna Henk-Jan Hoving1, Svenja Christiansen2, Eduard Fabrizius1, Helena Hauss1, Rainer Kiko1, Peter Linke1, Philipp Neitzel1, Uwe Piatkowski1, and Arne Körtzinger1,3 1GEOMAR, Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany 2University of Oslo, Blindernveien 31, 0371 Oslo, Norway 3Christian Albrecht University Kiel, Christian-Albrechts-Platz 4, 24118 Kiel, Germany Correspondence: Henk-Jan Hoving ([email protected]) Received: 16 November 2018 – Discussion started: 10 December 2018 Revised: 11 June 2019 – Accepted: 17 June 2019 – Published: 7 October 2019 Abstract. There is a need for cost-efficient tools to explore 1 Introduction deep-ocean ecosystems to collect baseline biological obser- vations on pelagic fauna (zooplankton and nekton) and es- The open-ocean pelagic zones include the largest, yet least tablish the vertical ecological zonation in the deep sea. The explored habitats on the planet (Robison, 2004; Webb et Pelagic In situ Observation System (PELAGIOS) is a 3000 m al., 2010; Ramirez-Llodra et al., 2010). Since the first rated slowly (0.5 m s−1) towed camera system with LED il- oceanographic expeditions, oceanic communities of macro- lumination, an integrated oceanographic sensor set (CTD- zooplankton and micronekton have been sampled using nets O2) and telemetry allowing for online data acquisition and (Wiebe and Benfield, 2003). Such sampling has revealed a video inspection (low definition). -
First Report on Beroe Ovata in an Unusual Mixture of Ctenophores in the Great Belt (Denmark)
First report on Beroe ovata in an unusual mixture of ctenophores in the Great Belt (Denmark) Shiganova, Tamara A.; Riisgard, Hans Ulrik; Ghabooli, Sara; Tendal, Ole Secher Published in: Aquatic Invasions DOI: 10.3391/ai.2014.9.1.10 Publication date: 2014 Document version Publisher's PDF, also known as Version of record Document license: Unspecified Citation for published version (APA): Shiganova, T. A., Riisgard, H. U., Ghabooli, S., & Tendal, O. S. (2014). First report on Beroe ovata in an unusual mixture of ctenophores in the Great Belt (Denmark). Aquatic Invasions, 9(1), 111-116. https://doi.org/10.3391/ai.2014.9.1.10 Download date: 27. sep.. 2021 Aquatic Invasions (2014) Volume 9, Issue 1: 111–116 doi: http://dx.doi.org/10.3391/ai.2014.9.1.10 Open Access © 2014 The Author(s). Journal compilation © 2014 REABIC Research Article First report on Beroe ovata in an unusual mixture of ctenophores in the Great Belt (Denmark) Tamara A. Shiganova1*, Hans Ulrik Riisgård2, Sara Ghabooli3 and Ole Secher Tendal4 1P.P. Shirshov Institute of Oceanology Russian Academy of Science, Moscow, Russia 2Marine Biological Research Centre (University of Southern Denmark), Hindsholmvej 11, DK-5300 Kerteminde, Denmark 3Great Lakes Institute for Environmental Research, University of Windsor, Canada 4Zoological Museum, SNM, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark E-mail: [email protected] (TAS), [email protected] (HUR), [email protected] (SG), [email protected] (OST) *Corresponding author Received: 16 September 2013 / Accepted: 23 January 2014 / Published online: 3 February 2014 Handling editor: Maiju Lehtiniemi Abstract Between mid-December 2011 and mid-January 2012 an unusual mixture of ctenophores was observed and collected at Kerteminde harbor (Great Belt, Denmark). -
First Record of Beroe Ovata Mayer, 1912 (Ctenophora: Beroida: Beroidae) Off the Mediterranean Coast of Israel
Aquatic Invasions (2011) Volume 6, Supplement 1: S89–S90 doi: 10.3391/ai.2011.6.S1.020 Open Access © 2011 The Author(s). Journal compilation © 2011 REABIC Aquatic Invasions Records Not far behind: First record of Beroe ovata Mayer, 1912 (Ctenophora: Beroida: Beroidae) off the Mediterranean coast of Israel Bella S. Galil1*, Roy Gevili2 and Tamara Shiganova3 1National Institute of Oceanography, Israel Oceanographic and Limnological Research, POB 8030, Haifa 31080, Israel 2Rogozin 54/25, Ashdod 77440, Israel 3P.P. Shirshov Institute of Oceanology RAS, Nakhimovsky av. 36, 117997 Moscow, Russian Federation E-mail: [email protected] (BSG), [email protected] (RG), [email protected] (TS) *Corresponding author Received: 15 July 2011 / Accepted: 19 July 2011 / Published online: 22 July 2011 Abstract The American brown comb jelly, Beroe ovata, was first noted off the Mediterranean coast of Israel on 10 June 2011, outside the port of Ashdod. The occurrence of B. ovata soon after its prey, Mnemiopsis leidyi, had been recorded follows the pattern of spread elsewhere, yet its presence in the warm and saline waters of the SE Levant is a surprise. Key words: Beroe ovata, Ctenophora, invasive species, Mediterranean, Israel Introduction identical to photographs of B. ovata specimens from the Black Sea, Aegean and Adriatic (Figure Beroe ovata Mayer, 1912 is indigenous to 4 in Shiganova et al. 2007; Figure 3G in western Atlantic coastal waters, from the USA to Shiganova and Malej 2009). Argentina, (Mayer 1912; Mianzan 1999). The The occurrence of B. ovata in the Evvoikos first occurrence in the Mediterranean was noted Gulf was attributed to the outflow of the Black in November 2004, from the northern Evvoikos Sea water masses via the Bosphorus strait, the Gulf, Greece (Shiganova et al. -
Species Composition of the Free Living Multicellular Invertebrate Animals
Historia naturalis bulgarica, 21: 49-168, 2015 Species composition of the free living multicellular invertebrate animals (Metazoa: Invertebrata) from the Bulgarian sector of the Black Sea and the coastal brackish basins Zdravko Hubenov Abstract: A total of 19 types, 39 classes, 123 orders, 470 families and 1537 species are known from the Bulgarian Black Sea. They include 1054 species (68.6%) of marine and marine-brackish forms and 508 species (33.0%) of freshwater-brackish, freshwater and terrestrial forms, connected with water. Five types (Nematoda, Rotifera, Annelida, Arthropoda and Mollusca) have a high species richness (over 100 species). Of these, the richest in species are Arthropoda (802 species – 52.2%), Annelida (173 species – 11.2%) and Mollusca (152 species – 9.9%). The remaining 14 types include from 1 to 38 species. There are some well-studied regions (over 200 species recorded): first, the vicinity of Varna (601 spe- cies), where investigations continue for more than 100 years. The aquatory of the towns Nesebar, Pomorie, Burgas and Sozopol (220 to 274 species) and the region of Cape Kaliakra (230 species) are well-studied. Of the coastal basins most studied are the lakes Durankulak, Ezerets-Shabla, Beloslav, Varna, Pomorie, Atanasovsko, Burgas, Mandra and the firth of Ropotamo River (up to 100 species known). The vertical distribution has been analyzed for 800 species (75.9%) – marine and marine-brackish forms. The great number of species is found from 0 to 25 m on sand (396 species) and rocky (257 species) bottom. The groups of stenohypo- (52 species – 6.5%), stenoepi- (465 species – 58.1%), meso- (115 species – 14.4%) and eurybathic forms (168 species – 21.0%) are represented. -
2. Literaturliste Zu Porifera Und Coelenterarta
LITERATUR PORIFERA (SCHWÄMME) ARTIKEL ZU PORIFERA (SCHWÄMME ) VAN SOEST, R.W.M. (1976): First European record of Haliclona loosanoffi Hartman, 1958 (Porifera, Haplosclerida), a species hithero known only from the New England coast (U.S.A.). Beaufortia 24: 177-187 VAN SOEST, R.W.M. (1977): Marine and freshwater sponges (Porifera) of the Netherlands. Zool Meded 50: 261-273 VAN SOEST, R.W.M., KLUIJVER, M.J. DE, BRAGT, P.H. VAN, FAASSE, M., NIJLAND, R., BEGLINGER, E.J., WEERDT, W.H. DE & VOOGD, N.J. DE (2007): Sponge invaders in Dutch coastal waters. J Mar Biol Ass U.K. 87: 1733-1748 COELENTERATA (HOHLTIERE) ARTIKEL ZU CTENOPHORA (RIPPENQUALLEN ) ANTAJAN, E., BASTIAN, T., RAUD, T., BRYLINSKI, J.-M., HOFFMANN, S., BRETON, G., CORNILLE, V., DELEGRANGE, A. & VINCENT, D. (2014): The invasive ctenophore Mnemiopsis leidyi A. Agassiz, 1865 along the English Channel and the North Sea French coasts: another introduction pathway in northern European waters? Aquatic Invasions 9: 167- 173 BILIO, M. & NIERMANN, U. (2004): Is the comb jelly really to blame for it all? Mnemiopsis leidyi and the ecological concerns about the Caspian Sea. Mar Ecol Prog Ser 269: 173-183 BOERSMA, M., MALZAHN, A.M., GREVE, W. & JAVIDPOUR, J. (2007): The first occurrence of the ctenophore Mneniopsis leidyi in the North Sea. Helgol Mar Res 61: 153-155 DIDŽIULIS, V. (2013): NOBANIS – Invasive Alien Species Fact Sheet – Mnemiopsis leidyi. From: Online Database of the North European and Baltic Network on Invasive Alien Species – NOBANIS www.nobanis.org (10.07.2013) FAASSE, M. & BAYHA, K.M. (2006): The ctenophore Mnemiopsis leidyi A. -
Images Included in This Publication Are Sourced from Public Domain
Invasive Alien Species of India S. Sandilyan Authors S. Sandilyan Citation Sandilyan, S, Meenakumari, B, Babu, C.R,and Mandal, R.2019.Invasive Alien Species ofIndia. National Biodiversity Authority, Chennai. Corresponding Authors B. Meenakumari, C.R.Babu,and R. Mandal Copyright © National Biodiversity Authority 2018 Published by Centre for Biodiversity Policy and Law (CEBPOL) National Biodiversity Authority 5th Floor, TICEL Biopark, CSIR Road, Taramani Chennai – 600 113, Tamil Nadu, India Website: http://nbaindia.org/cebpol/ Layout and Design: N. Singaram IT Executive, CEBPOL Disclaimer: This publications is prepared as an initiative under CEBPOL programme. All the views expressed in this publication are based on established legal principles. Any error or lapse is purely unintended and inconsequential and shall not make either the NBA or the CEBPOL liable for the same. Some pictures and images included in this publication are sourced from public domain. This publications is purely for non- commercial purposes including awareness creation and capacity building. Contents 1. Introduction ................................................................................................................................ 1 2. Criteria adopted for designating an alien species as invasive ....................................................... 3 3. Terrestrial Invasive Alien Plant Species ......................................................................................... 8 4. Aquatic Invasive Alien Plant Species ............................................................................................ -
Conservation Diver Course
Conservation Diver Course Conservation Diver Course 1 Inhoud 1 Introduction ..................................................................................................................................... 5 2 Taxonomy ........................................................................................................................................ 7 2.1 Introduction ..................................................................................................................................... 7 2.2 What is taxonomy? .......................................................................................................................... 8 2.3 A brief history of taxonomy ............................................................................................................. 9 2.4 Scientific names ............................................................................................................................. 10 2.5 The hierarchical system of classification ....................................................................................... 12 2.5.1 Species ................................................................................................................................... 13 2.5.2 Genus ..................................................................................................................................... 13 2.5.3 Family .................................................................................................................................... 14 2.5.4 Order .................................................................................................................................... -
CTENOPHORA Comb Jellies
THREE Phylum CTENOPHORA comb jellies HERMES MIANZAN, ELLIOT W. Dawson, CLAUDIA E. MILLS tenophores have been described as the most beautiful, delicate, seem- ingly innocent yet most voracious, sinister and destructive of plankton Corganisms. They are exclusively marine, are found in all oceans at all depths, have many different shapes, and range in size from a few millimetres diameter to two metres long. They are mostly planktonic, but one order is bottom- dwelling with a creeping mode of existence. The planktonic forms are stunningly beautiful, diaphanous creatures, flashing iridescence as their comb-like cilia plates catch the light. Their bodies are soft, fragile, gelatinous. The phylum is small and well defined, with about 150 species worldwide (Mills 2008). Like the Cnidaria, they are radiate animals and at one time the two phyla were linked together as the Coelenterata. Ctenophoran symmetry is biradial and the general body plan somewhat more complicated than that of Cnidaria (Harbison & Madin 1982; Mills & Miller 1984; Harbison 1985). The two phyla are now thought to be only very distantly related. Recent evidence from ribosomal RNA sequencing shows that the Ctenophora lie close to the Porifera as the second-most-basic group of the Metazoa (Bridge et al. 1995; Collins 1998; Podar et al. 2001). Similarity in body form between pelagic ctenophores and medusae is a phenomenon of convergence. Ctenophores (literally, comb bearers) are named for their eight symmetrical tracks (comb rows) of fused ciliary plates (ctenes) on the body surface (Hernán- dez-Nicaise & Franc 1993). These constitute the locomotory apparatus that Leucothea sp. characterises the group.