107Th Annual Meeting May 2-3, 2014
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Sediment Distribution, Hydrolytic Enzyme Profiles and Bacterial Activities in the Guts of Oneirophanta Mutabilis, Psychropotes L
Progress in Oceanography 50 (2001) 443–458 www.elsevier.com/locate/pocean Sediment distribution, hydrolytic enzyme profiles and bacterial activities in the guts of Oneirophanta mutabilis, Psychropotes longicauda and Pseudostichopus villosus: what do they tell us about digestive strategies of abyssal holothurians? D. Roberts a,*, H.M. Moore a, J. Berges a, J.W. Patching b, M.W. Carton b, D.F. Eardly b a School of Biology and Biochemistry, The Queen’s University, Belfast, Northern Ireland, UK b Marine Microbiology, Ryan Institute, University College, Galway, Ireland Abstract This paper describes inter-specific differences in the distribution of sediment in the gut compartments and in the enzyme and bacterial profiles along the gut of abyssal holothurian species — Oneirophanta mutabilis, Psychropotes longicauda and Pseudostichopus villosus sampled from a eutrophic site in the NE Atlantic at different times of the year. Proportions of sediments, relative to total gut contents, in the pharynx, oesophagus, anterior and posterior intestine differed significantly in all the inter-species comparisons, but not between inter-seasonal comparisons. Significant differ- ences were also found between the relative proportions of sediments in both the rectum and cloaca of Psychropotes longicauda and Oneirophanta mutabilis. Nineteen enzymes were identified in either gut-tissue or gut-content samples of the holothurians studied. Concentrations of the enzymes in gut tissues and their contents were highly correlated. Greater concentrations of the enzymes were found in the gut tissues suggesting that they are the main source of the enzymes. The suites of enzymes recorded were broadly similar in each of the species sampled collected regardless of the time of the year, and they were similar to those described previously for shallow-water holothurians. -
First Molecular Data and Morphological Re-Description of Two
Journal of King Saud University – Science 33 (2021) 101290 Contents lists available at ScienceDirect Journal of King Saud University – Science journal homepage: www.sciencedirect.com Original article First molecular data and morphological re-description of two copepod species, Hatschekia sargi and Hatschekia leptoscari, as parasites on Parupeneus rubescens in the Arabian Gulf ⇑ Saleh Al-Quraishy a, , Mohamed A. Dkhil a,b, Nawal Al-Hoshani a, Wejdan Alhafidh a, Rewaida Abdel-Gaber a,c a Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia b Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt c Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt article info abstract Article history: Little information is available about the biodiversity of parasitic copepods in the Arabian Gulf. The pre- Received 6 September 2020 sent study aimed to provide new information about different parasitic copepods gathered from Revised 30 November 2020 Parupeneus rubescens caught in the Arabian Gulf (Saudi Arabia). Copepods collected from the infected fish Accepted 9 December 2020 were studied using light microscopy and scanning electron microscopy and then examined using stan- dard staining and measuring techniques. Phylogenetic analyses were conducted based on the partial 28S rRNA gene sequences from other copepod species retrieved from GenBank. Two copepod species, Keywords: Hatschekia sargi Brian, 1902 and Hatschekia leptoscari Yamaguti, 1939, were identified as naturally 28S rRNA gene infected the gills of fish. Here we present a phylogenetic analysis of the recovered copepod species to con- Arabian Gulf Hatschekiidae firm their taxonomic position in the Hatschekiidae family within Siphonostomatoida and suggest the Marine fish monophyletic origin this family. -
Pilgrim 1985.Pdf (1.219Mb)
MAURI ORA, 1985, 12: 13-53 13 PARASITIC COPEPODA FROM MARINE COASTAL FISHES IN THE KAIKOURA-BANKS PENINSULA REGION, SOUTH ISLAND, NEW ZEALAND. WITH A KEY FOR THEIR IDENTIFICATION R.L.C. PILGRIM Department of Zoology, University of Canterbury, Christchurch 1, New Zealand. ABSTRACT An introductory account of parasitic Copepoda in New Zealand waters is given, together with suggestions for collecting, examining, preserving and disposal of specimens. A key is presented for identifying all known forms from the fishes which are known to occur in the Kaikoura-Banks Peninsula region. Nine species/ subspecies ( + 2 spp.indet.) have been taken from elasmobranch fishes, 13 ( + 7 spp.indet.) from teleost fishes in the region; a further 6 from elasmobranchs and 27 ( + 1 indet.) from teleosts are known in New Zealand waters but so far not taken from these hosts in the region. A host-parasite list is given of known records'from the region. KEYWORDS: New Zealand, marine, fish, parasitic Copepoda, keys. INTRODUCTION Fishes represent a very significant proportion of the macrofauna of the coastal waters from Kaikoura to Banks Peninsula, and as such are commonly studiecl by staff and students from the Department of Zoology, University of Canterbury. Even a cursory examination of most specimens will reveal the presence of sometimes numerous parasites clinging to the outer surface or, more frequently, to the linings of the several cavities exposed to the outside sea water. The mouth and gill chambers are 14 particularly liable to contain numbers of large or small, but generally macroscopic, animals attached to these surfaces. Many are readily identified as segmented, articulated, chitinised animals and are clearly Arthropoda. -
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans
Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans by Robert George Young A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Doctor of Philosophy in Integrative Biology Guelph, Ontario, Canada © Robert George Young, March, 2016 ABSTRACT MOLECULAR SPECIES DELIMITATION AND BIOGEOGRAPHY OF CANADIAN MARINE PLANKTONIC CRUSTACEANS Robert George Young Advisors: University of Guelph, 2016 Dr. Sarah Adamowicz Dr. Cathryn Abbott Zooplankton are a major component of the marine environment in both diversity and biomass and are a crucial source of nutrients for organisms at higher trophic levels. Unfortunately, marine zooplankton biodiversity is not well known because of difficult morphological identifications and lack of taxonomic experts for many groups. In addition, the large taxonomic diversity present in plankton and low sampling coverage pose challenges in obtaining a better understanding of true zooplankton diversity. Molecular identification tools, like DNA barcoding, have been successfully used to identify marine planktonic specimens to a species. However, the behaviour of methods for specimen identification and species delimitation remain untested for taxonomically diverse and widely-distributed marine zooplanktonic groups. Using Canadian marine planktonic crustacean collections, I generated a multi-gene data set including COI-5P and 18S-V4 molecular markers of morphologically-identified Copepoda and Thecostraca (Multicrustacea: Hexanauplia) species. I used this data set to assess generalities in the genetic divergence patterns and to determine if a barcode gap exists separating interspecific and intraspecific molecular divergences, which can reliably delimit specimens into species. I then used this information to evaluate the North Pacific, Arctic, and North Atlantic biogeography of marine Calanoida (Hexanauplia: Copepoda) plankton. -
Worms, Germs, and Other Symbionts from the Northern Gulf of Mexico CRCDU7M COPY Sea Grant Depositor
h ' '' f MASGC-B-78-001 c. 3 A MARINE MALADIES? Worms, Germs, and Other Symbionts From the Northern Gulf of Mexico CRCDU7M COPY Sea Grant Depositor NATIONAL SEA GRANT DEPOSITORY \ PELL LIBRARY BUILDING URI NA8RAGANSETT BAY CAMPUS % NARRAGANSETT. Rl 02882 Robin M. Overstreet r ii MISSISSIPPI—ALABAMA SEA GRANT CONSORTIUM MASGP—78—021 MARINE MALADIES? Worms, Germs, and Other Symbionts From the Northern Gulf of Mexico by Robin M. Overstreet Gulf Coast Research Laboratory Ocean Springs, Mississippi 39564 This study was conducted in cooperation with the U.S. Department of Commerce, NOAA, Office of Sea Grant, under Grant No. 04-7-158-44017 and National Marine Fisheries Service, under PL 88-309, Project No. 2-262-R. TheMississippi-AlabamaSea Grant Consortium furnish ed all of the publication costs. The U.S. Government is authorized to produceand distribute reprints for governmental purposes notwithstanding any copyright notation that may appear hereon. Copyright© 1978by Mississippi-Alabama Sea Gram Consortium and R.M. Overstrect All rights reserved. No pari of this book may be reproduced in any manner without permission from the author. Primed by Blossman Printing, Inc.. Ocean Springs, Mississippi CONTENTS PREFACE 1 INTRODUCTION TO SYMBIOSIS 2 INVERTEBRATES AS HOSTS 5 THE AMERICAN OYSTER 5 Public Health Aspects 6 Dcrmo 7 Other Symbionts and Diseases 8 Shell-Burrowing Symbionts II Fouling Organisms and Predators 13 THE BLUE CRAB 15 Protozoans and Microbes 15 Mclazoans and their I lypeiparasites 18 Misiellaneous Microbes and Protozoans 25 PENAEID -
Copepoda: Pandaridae, Eudactylinidae, Caligidae) on Elasmobranchs (Chondrichthyes) in the Gulf of Mexico
Ciencia Pesquera (2016) número especial 24: 15-21 New records of parasitic copepods (Copepoda: Pandaridae, Eudactylinidae, Caligidae) on elasmobranchs (Chondrichthyes) in the Gulf of Mexico María Amparo Rodríguez-Santiago, Francisco Neptalí Morales-Serna, Samuel Gómez y Mayra I. Grano-Maldonado The aim of this study was to identify the parasitic copepod species in some elasmobranchs (two rays and four shark species) that are commercially important in the Southern Gulf of Mexico (Mexico). In the spotted eagle ray, Aetobatus narinari six species of parasitic copepods (Alebion sp., Caligus dasyaticus, C. haemulonis, Euryphorus suarezi, Lepeophtheirus acutus and L. marginatus) were found and in the Southern stingray Hypanusamericanus two species (C. dasyaticus and Euryphorus sp.). The four shark species (Carcharhinus leucas, C. limbatus, C. plumbeus and Sphyrna tiburo) that were examined had at least one copepod species. The copepod species found on C. leucas were: Nesippus orientalis, Nemesis sp. and Paralebion elongatus; in C. limbatus: Tuxophorus caligodes, L. longispinosus and Pandarus sinuatus; in C. plumbeus: Pandarus sp. and in S. tiburo: Eudactylina longispina. The copepod species recorded in this study belong to families Caligidae, Pan- daridae and Eudactylinidae, which had not been documented in the Mexican coast off the Gulf of Mexico, contributes to the knowledge of the biodiversity of parasitic copepods in Mexico. Key words: Copepods, crustaceans, ectoparasites, elasmobranchs, fish parasites, Gulf of Mexico. Nuevos registros de copépodos parásitos (Copepoda: Pandaridae, Eudactylinidae, Caligidae) en elasmobranquios (Chondrichthyes) en el Golfo de México El objetivo de este estudio fue identificar las especies de copépodos parásitos en algunos elasmobranquios (rayas y tiburones) de importancia comercial en el sudeste del Golfo de México (México). -
Parasites of Cartilaginous Fishes (Chondrichthyes) in South Africa – a Neglected Field of Marine Science
Institute of Parasitology, Biology Centre CAS Folia Parasitologica 2019, 66: 002 doi: 10.14411/fp.2019.002 http://folia.paru.cas.cz Research article Parasites of cartilaginous fishes (Chondrichthyes) in South Africa – a neglected field of marine science Bjoern C. Schaeffner and Nico J. Smit Water Research Group, Unit for Environmental Sciences and Management, Potchefstroom Campus, North-West University, Potchefstroom, South Africa Abstract: Southern Africa is considered one of the world’s ‘hotspots’ for the diversity of cartilaginous fishes (Chondrichthyes), with currently 204 reported species. Although numerous literature records and treatises on chondrichthyan fishes are available, a paucity of information exists on the biodiversity of their parasites. Chondrichthyan fishes are parasitised by several groups of protozoan and metazoan organisms that live either permanently or temporarily on and within their hosts. Reports of parasites infecting elasmobranchs and holocephalans in South Africa are sparse and information on most parasitic groups is fragmentary or entirely lacking. Parasitic copepods constitute the best-studied group with currently 70 described species (excluding undescribed species or nomina nuda) from chondrichthyans. Given the large number of chondrichthyan species present in southern Africa, it is expected that only a mere fraction of the parasite diversity has been discovered to date and numerous species await discovery and description. This review summarises information on all groups of parasites of chondrichthyan hosts and demonstrates the current knowledge of chondrichthyan parasites in South Africa. Checklists are provided displaying the host-parasite and parasite-host data known to date. Keywords: Elasmobranchii, Holocephali, diversity, host-parasite list, parasite-host list The biogeographical realm of Temperate Southern Af- pagno et al. -
Zootaxa, Psychropotid Holothurians (Echinodermata: Holothuroidea: Elasipodida)
Zootaxa 2096: 460–478 (2009) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2009 · Magnolia Press ISSN 1175-5334 (online edition) Psychropotid holothurians (Echinodermata: Holothuroidea: Elasipodida) collected at abyssal depths from around the Crozet Plateau in the Southern Indian Ocean* ANTONINA ROGACHEVA1#, IAN A. CROSS2 & DAVID S. M. BILLETT2 1 P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimovsky Pr., 36, Moscow, 117997, Russia. 2 National Oceanography Centre, Southampton, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, United Kingdom. # Corresponding author: [email protected] * In: Brökeland, W. & George, K.H. (eds) (2009) Deep-sea taxonomy — a contribution to our knowledge of biodiversity. Zootaxa, 2096, 1–488. Abstract Seven species of holothurians of the family Psychropotidae were collected during the cruise D300 of RRS Discovery to Crozet plateau. Three of them, Benthodytes wolffi, Psycheotrephes discoveryi and Psychropotes xenochromata are described as new to science. One species, Benthodytes abyssicola Théel, regarded recently as incertae sedis, is re- described with designation of a lectotype. Additional notes are provided to descriptions of Psychropotes scotiae (Vaney) known from two specimens and Psychropotes longicauda Théel, the cosmopolitan highly variable species. Key words: Benthodytes, Psycheotrephes, Psychropotes, Psychropotidae, new species Introduction Holothurians of the family Psychropotidae are among the least studied deep-sea holothurians. The family was defined by Théel (1879, 1882, 1886), who erected four new genera and 14 new species based on the collection of H.M.S. Challenger. Subsequently 34 species were described by Verrill (1884), von Marenzeller (1893), Ludwig (1894), Perrier (1896), Hérouard (1896, 1902), Sluiter (1901a, 1901b), Koehler and Vaney (1905), Vaney (1908), Ohshima (1915), H.L. -
DEEP-SEA DILEMMA Mining the Ocean Floor Could Solve Mineral Shortages — and Lead to Epic Extinctions in Some of the Most Remote Ecosystems on Earth
DEEP-SEA DILEMMA Mining the ocean floor could solve mineral shortages — and lead to epic extinctions in some of the most remote ecosystems on Earth. lot of fights,” he says. On another voyage, Thiel A ghostly sponge visited the Red Sea with would-be miners who lives on a Pacific were keen to extract potentially valuable ores seamount, one of BY OLIVE HEFFERNAN from the region’s metal-rich muds. At one point, the environments he cautioned them that if they went ahead with targeted by contractors their plans and dumped their waste sediment at interested in mining the sea surface, it could suffocate small swim- the ocean floor. mers such as plankton. “They were nearly ready n 1972, a young ecologist named Hjalmar Thiel ventured to a to drown me,” Thiel recalls of his companions. remote part of the Pacific Ocean known as the Clarion–Clipperton In a later confrontation, Thiel — who was at the University of Zone (CCZ). The sea floor there boasts one of the world’s largest Hamburg in Germany — questioned how industry planned to test the untapped collections of rare-earth elements. Some 4,000 metres environmental impacts of sea-bed mining. He was curtly advised to do below the ocean surface, the abyssal ooze of the CCZ holds tril- his own test. So he did, in 1989. Ilions of polymetallic nodules — potato-sized deposits loaded with cop- Thirty years on, the test that Thiel and a colleague devised is still per, nickel, manganese and other precious ores. the largest experiment ever on the potential impacts of commercial ZHANG JIANSONG/XINHUA/ALAMY Thiel was interested in the region’s largely unstudied meiofauna — the deep-sea mining. -
Southeastern Regional Taxonomic Center South Carolina Department of Natural Resources
Southeastern Regional Taxonomic Center South Carolina Department of Natural Resources http://www.dnr.sc.gov/marine/sertc/ Southeastern Regional Taxonomic Center Invertebrate Literature Library (updated 9 May 2012, 4056 entries) (1958-1959). Proceedings of the salt marsh conference held at the Marine Institute of the University of Georgia, Apollo Island, Georgia March 25-28, 1958. Salt Marsh Conference, The Marine Institute, University of Georgia, Sapelo Island, Georgia, Marine Institute of the University of Georgia. (1975). Phylum Arthropoda: Crustacea, Amphipoda: Caprellidea. Light's Manual: Intertidal Invertebrates of the Central California Coast. R. I. Smith and J. T. Carlton, University of California Press. (1975). Phylum Arthropoda: Crustacea, Amphipoda: Gammaridea. Light's Manual: Intertidal Invertebrates of the Central California Coast. R. I. Smith and J. T. Carlton, University of California Press. (1981). Stomatopods. FAO species identification sheets for fishery purposes. Eastern Central Atlantic; fishing areas 34,47 (in part).Canada Funds-in Trust. Ottawa, Department of Fisheries and Oceans Canada, by arrangement with the Food and Agriculture Organization of the United Nations, vols. 1-7. W. Fischer, G. Bianchi and W. B. Scott. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Volume II. Final report to the Minerals Management Service. J. M. Uebelacker and P. G. Johnson. Mobile, AL, Barry A. Vittor & Associates, Inc. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Volume III. Final report to the Minerals Management Service. J. M. Uebelacker and P. G. Johnson. Mobile, AL, Barry A. Vittor & Associates, Inc. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico. -
Curriculum Vitae
1 CURRICULUM VITAE A. Biographical Information 1. Personal Name: Daniel Rusk Brooks Date of Birth: 12 April 1951 Citizenship: USA Address: 1821 Greenbriar Lane Lincoln, Nebraska 68506 USA Telephone: (402) 483-6046 Cell: (402) 541-4456 email: [email protected] 2. Educational Background B.S. with Distinction University of Nebraska (1973) Thesis supervisor: M. H. Pritchard M.S. University of Nebraska (1975) Thesis supervisor: M. H. Pritchard Ph.D. University of Mississippi (1978) Evolutionary Biology of Digeneans Inhabiting Crocodilians Dissertation supervisor: R. M. Overstreet 3. Employment Owner, Dan Brooks Photography LLC 2010- Adjunct Research Professor 2011- University of Nebraska-Lincoln Professor emeritus 2011 - University of Toronto Professor of Zoology 1991-2011 University of Toronto Faculty of Graduate Studies 1988-2011 University of Toronto Professor, University College 1992-1996 University of Toronto Associate Professor of Zoology 1988-1991 University of Toronto Associate Professor of Zoology 1985-8 University of British Columbia 2 Assistant Professor of Zoology 1980-5 University of British Columbia Friends of the National Zoo 1979-80 Post-doctoral Fellow National Zoological Park, Smithsonian Institution, Washington, D.C. NIH Post-doctoral Trainee 1978-9 University of Notre Dame 4. Awards and Distinctions Senior Visiting Fellow, Parmenides Foundation (2013) Anniversary Award, Helminthological Society of Washington DC (2012) Senior Visiting Fellow, Institute for Advanced Study, Collegium Budapest, (2010-2011) Fellow, Linnean -
New Mediterranean Biodiversity Records (July 2018)
Collective Article A Mediterranean Marine Science Indexed in WoS (Web of Science, ISI Thomson) and SCOPUS The journal is available online at http://www.medit-mar-sc.net DOI: http://dx.doi.org/10.12681/mms.18099 New Mediterranean Biodiversity Records (July 2018) NIKI CHARTOSIA1, DIMITRIS ANASTASIADIS2, HOCEIN BAZAIRI3, FABIO CROCETTA4, ALAN DEIDUN5, MARIJA DESPALATOVIĆ6, VINCENZO DI MARTINO7, NIKOS DIMITRIOU2, BRANKO DRAGIČEVIĆ6, JA- KOV DULČIĆ6, FURKAN DURUCAN8, DENIZ HASBEK9, VLASIOS KETSILIS-RINIS2, PERIKLIS KLEITOU10, LOVRENC LIPEJ11, ARMANDO MACALI12, AGNESE MARCHINI13, MARIAM OUSSELAM14, STEFANO PI- RAINO15, BESSY STANCANELLI16, MARILENA THEODOSIOU1, FRANCESCO TIRALONGO17, VALENTINA TODOROVA18, DOMEN TRKOV11 and SERCAN YAPICI19 1 Department of Biological Sciences, University of Cyprus, 1 Panepistimiou Str., 2109 Aglantzia, Nicosia, Cyprus 2 Institute of Marine Biological Resources and Inland waters, Hellenic Centre for Marine Research, 46.7 km Athens Sounio, GR19013, Anavyssos, Attiki, Greece 3 BioBio Research Center, Faculty of Sciences, University Mohammed V in Rabat, 4 Avenue Ibn Battouta, B.P. 1014 RP, Rabat, Morocco 4 Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, I-80121 Naples, Italy 5 Department of Geosciences, University of Malta, Msida MSD 2080, Malta 6 Institute of Oceanography and Fisheries, Šetalište Ivana Meštrovića 63, 21000 Split, Croatia 7 Institute for Agricultural and Forestry System, National Research Council of Italy (CNR), via Empedocle, 58, 95125, Italy 8 Işıklar Caddesi