Os Nomes Galegos Dos Moluscos
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Response to Oxygen Deficiency (Depletion): Bivalve Assemblages As an Indicator of Ecosystem Instability in the Northern Adriatic Sea
View metadata, citation and similar papers at core.ac.uk brought to you by CORE Response to oxygen deficiency (depletion): Bivalve assemblages as an indicator of ecosystem instability in the northern Adriatic Sea Vedrana NERLOVIĆ1, Alper DOĞAN2 & Mirjana HRS-BRENKO1 1Ruđer Bošković Institute, Centre for Marine Research, Giordano Paliaga 5, HR-52210 Rovinj, Croatia e-mail: [email protected] 2 Department of Hydrobiology, Faculty of Fisheries, Ege University, 35100 Bornova, Izmir, Turkey e-mail: [email protected] Abstract: Benthic communities represent a powerful tool for the detection of natural and anthropogenic disturbances, as well as for the assessment of marine ecosystem stability. This paper shows that Bivalve assemblages could serve as excellent indicators of disturbance and ecosystem instability. The goal of this study was to compare two sets of data in order to determine the differences between two different periods belonging to Bivalve assemblage in the muddy detritic bottom of the northern Adriatic Sea in the post-anoxic period during December 1989, 1990, 1991 and quite a while later, during 2003, 2004 and 2005. Abundances of some indicator species such as Corbula gibba, Modiolarca subpicta, and Timoclea ovata were detected during the post-anoxic period. Recruitment in the quality of Bivalve assemblages was proved by the ecologic and biotic indexes during 2003, 2004 and 2005, during a period of relatively stable ecological conditions. Fluctuation in Bivalve diversity due to the ecological quality of the marine ecosystem in the eastern part of the northern Adriatic Sea is also discussed. Key words: hypoxia; Bivalve assemblages; indicator species; soft bottoms; northern Adriatic Sea Introduction Recent reviews and summaries have provided good introductions on how hypoxia and anoxia came to be such a large and serious problem in the aquatic ecosystem (Gray et al. -
Biodiversity of the Kermadec Islands and Offshore Waters of the Kermadec Ridge: Report of a Coastal, Marine Mammal and Deep-Sea Survey (TAN1612)
Biodiversity of the Kermadec Islands and offshore waters of the Kermadec Ridge: report of a coastal, marine mammal and deep-sea survey (TAN1612) New Zealand Aquatic Environment and Biodiversity Report No. 179 Clark, M.R.; Trnski, T.; Constantine, R.; Aguirre, J.D.; Barker, J.; Betty, E.; Bowden, D.A.; Connell, A.; Duffy, C.; George, S.; Hannam, S.; Liggins, L..; Middleton, C.; Mills, S.; Pallentin, A.; Riekkola, L.; Sampey, A.; Sewell, M.; Spong, K.; Stewart, A.; Stewart, R.; Struthers, C.; van Oosterom, L. ISSN 1179-6480 (online) ISSN 1176-9440 (print) ISBN 978-1-77665-481-9 (online) ISBN 978-1-77665-482-6 (print) January 2017 Requests for further copies should be directed to: Publications Logistics Officer Ministry for Primary Industries PO Box 2526 WELLINGTON 6140 Email: [email protected] Telephone: 0800 00 83 33 Facsimile: 04-894 0300 This publication is also available on the Ministry for Primary Industries websites at: http://www.mpi.govt.nz/news-resources/publications.aspx http://fs.fish.govt.nz go to Document library/Research reports © Crown Copyright - Ministry for Primary Industries TABLE OF CONTENTS EXECUTIVE SUMMARY 1 1. INTRODUCTION 3 1.1 Objectives: 3 1.2 Objective 1: Benthic offshore biodiversity 3 1.3 Objective 2: Marine mammal research 4 1.4 Objective 3: Coastal biodiversity and connectivity 5 2. METHODS 5 2.1 Survey area 5 2.2 Survey design 6 Offshore Biodiversity 6 Marine mammal sampling 8 Coastal survey 8 Station recording 8 2.3 Sampling operations 8 Multibeam mapping 8 Photographic transect survey 9 Fish and Invertebrate sampling 9 Plankton sampling 11 Catch processing 11 Environmental sampling 12 Marine mammal sampling 12 Dive sampling operations 12 Outreach 13 3. -
E Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary
!e Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary Jessica Reeves & John Buckeridge Published by: Greypath Productions Marine Care Ricketts Point PO Box 7356, Beaumaris 3193 Copyright © 2012 Marine Care Ricketts Point !is work is copyright. Apart from any use permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of the publisher. Photographs remain copyright of the individual photographers listed. ISBN 978-0-9804483-5-1 Designed and typeset by Anthony Bright Edited by Alison Vaughan Printed by Hawker Brownlow Education Cheltenham, Victoria Cover photo: Rocky reef habitat at Ricketts Point Marine Sanctuary, David Reinhard Contents Introduction v Visiting the Sanctuary vii How to use this book viii Warning viii Habitat ix Depth x Distribution x Abundance xi Reference xi A note on nomenclature xii Acknowledgements xii Species descriptions 1 Algal key 116 Marine invertebrate key 116 Glossary 118 Further reading 120 Index 122 iii Figure 1: Ricketts Point Marine Sanctuary. !e intertidal zone rocky shore platform dominated by the brown alga Hormosira banksii. Photograph: John Buckeridge. iv Introduction Most Australians live near the sea – it is part of our national psyche. We exercise in it, explore it, relax by it, "sh in it – some even paint it – but most of us simply enjoy its changing modes and its fascinating beauty. Ricketts Point Marine Sanctuary comprises 115 hectares of protected marine environment, located o# Beaumaris in Melbourne’s southeast ("gs 1–2). !e sanctuary includes the coastal waters from Table Rock Point to Quiet Corner, from the high tide mark to approximately 400 metres o#shore. -
Redalyc.Mass Stranding of Argonauta Nodosa Lightfoot, 1786
Revista de Biología Marina y Oceanografía ISSN: 0717-3326 [email protected] Universidad de Valparaíso Chile Demicheli, Mario; Martínez, Ana; Ortega, Leonardo; Scarabino, Fabrizio; Maytía, Susana; Demicheli, Alvaro Mass stranding of Argonauta nodosa Lightfoot, 1786 (Cephalopoda, Argonautidae) along the Uruguayan coast (southwestern Atlantic) Revista de Biología Marina y Oceanografía, vol. 41, núm. 2, diciembre, 2006, pp. 147-153 Universidad de Valparaíso Viña del Mar, Chile Disponible en: http://www.redalyc.org/articulo.oa?id=47941202 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Revista de Biología Marina y Oceanografía 41(2): 147 – 153, diciembre de 2006 Mass stranding of Argonauta nodosa Lightfoot, 1786 (Cephalopoda, Argonautidae) along the Uruguayan coast (southwestern Atlantic) Varamiento masivo de Argonauta nodosa Lightfoot, 1786 (Cephalopoda, Argonautidae) a lo largo de la costa uruguaya (Atlántico suroeste) Mario Demicheli1, Ana Martínez2, Leonardo Ortega2, Fabrizio Scarabino1, 2, Susana Maytía1 and Alvaro Demicheli1 1 Museo Nacional de Historia Natural y Antropología, C. C. 399, C. P. 11.00, Montevideo, Uruguay 2 Dirección Nacional de Recursos Acuáticos, Constituyente 1497, C. P. 11200, Montevideo, Uruguay [email protected] Resumen.- Un varamiento masivo de A. nodosa fue Abstract.- A mass stranding of A. nodosa was registered registrado a lo largo de 250 km de la costa uruguaya entre along more than 250 km of the Uruguayan coast between enero y abril del 2004. Este evento inusual estuvo asociado January and April 2004. -
Mollusca) Del Tortoniense Superior De Arroyo Trujillo, Cantillana (Sevilla
SPANISH JOURNAL OF PALAEONTOLOGY Estudio paleontológico de los bivalvos (Mollusca) del Tortoniense superior de Arroyo Trujillo, Cantillana (Sevilla) Joaquín CÁRDENAS1*, Ildefonso BAJO2 & M. Vicente MAESTRE2 1 Plaza de España, 10, 1º D, 41702 Dos Hermanas, Sevilla; [email protected] 2 Museo de Alcalá de Guadaíra, Sección de Paleontología, c/ Juan Pérez Díaz s/n, 41500, Alcalá de Guadaíra, Sevilla * Corresponding author Cárdenas, J., Bajo, I. & Maestre, M.V. 2017. Estudio paleontológico de los bivalvos (Mollusca) del Tortoniense superior de Arroyo Trujillo, Cantillana (Sevilla). [Palaeontological study of the bivalves (Mollusca) of the late Tortonian of Arroyo Trujillo, Cantillana (Sevilla)]. Spanish Journal of Palaeontology, 32 (2), 367-386. Manuscript received 19 April 2017 © Sociedad Española de Paleontología ISSN 2255-0550 Manuscript accepted 21 August 2017 RESUMEN ABSTRACT En este trabajo se actualiza la estratigrafía y se estudia la In this work, the stratigraphy of Arroyo Trujillo (Cantillana, comunidad de bivalvos fósil del yacimiento Arroyo Trujillo Sevilla) site, in the Guadalquivir Basin, is updated and the (Cantillana, Sevilla) en la zona central de la Cuenca del fossil bivalve community is studied. A new stratigraphic Guadalquivir. Se ha realizado una nueva columna estratigráfi ca, section has been made, differentiating four sections y en ella se diferencian cuatro tramos correspondientes al encompassed in the Transgressive Basal Complex of the upper Complejo Basal Transgresivo del Tortoniense superior. Han Tortonian. One hundred and thirty two bivalves have been sido identifi cados 132 taxones de bivalvos, diez de los cuales identifi ed, 10 out of them are mentioned for the fi rst time in se citan por primera vez en la península Ibérica. -
Octopus Consciousness: the Role of Perceptual Richness
Review Octopus Consciousness: The Role of Perceptual Richness Jennifer Mather Department of Psychology, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; [email protected] Abstract: It is always difficult to even advance possible dimensions of consciousness, but Birch et al., 2020 have suggested four possible dimensions and this review discusses the first, perceptual richness, with relation to octopuses. They advance acuity, bandwidth, and categorization power as possible components. It is first necessary to realize that sensory richness does not automatically lead to perceptual richness and this capacity may not be accessed by consciousness. Octopuses do not discriminate light wavelength frequency (color) but rather its plane of polarization, a dimension that we do not understand. Their eyes are laterally placed on the head, leading to monocular vision and head movements that give a sequential rather than simultaneous view of items, possibly consciously planned. Details of control of the rich sensorimotor system of the arms, with 3/5 of the neurons of the nervous system, may normally not be accessed to the brain and thus to consciousness. The chromatophore-based skin appearance system is likely open loop, and not available to the octopus’ vision. Conversely, in a laboratory situation that is not ecologically valid for the octopus, learning about shapes and extents of visual figures was extensive and flexible, likely consciously planned. Similarly, octopuses’ local place in and navigation around space can be guided by light polarization plane and visual landmark location and is learned and monitored. The complex array of chemical cues delivered by water and on surfaces does not fit neatly into the components above and has barely been tested but might easily be described as perceptually rich. -
Lesson (PDF 76
Common Life in the Marine Biome Instructions: Scientists use dichotomous keys to organize and identify specimens. Dichotomous means dividing into two parts – a dichotomous key provides two choices in each step. For example: to divide a package of multi-coloured pens into two groups, you might decide to divide the pens by “has blue ink” and “does not have blue ink”. Work together at each station and use the available tools and key information to identify the different specimens. Record your answers on your results page. Station 1 – Echinoderms 1. a. Specimen has arms…………………………………………………………………….………..go to 2 b. Specimen does not have arms………………………………………………..………….go to 4 2. a. Specimen usually has 5 arms………………………..……………………………..…...go to 3 b. Specimen usually has more than 5 arms (when intact)………………………………………………………………………………………Common sun star 3. a. Specimen has a central, armoured disc with long, thin arms…………………………………………………………………………………………...Daisy brittle star b. Specimen does not armoured disc, and has large, thicker arms………………………………………………………………………………………………………….Sea star There are different species of sea star in Nova Scotian waters. Often, the easiest identification relates to colour. For example, the northern sea star and Forbes’ sea star can both have colorful bodies (purple, tan, red, etc.), however the northern sea star has a pale yellow madreporite and the Forbes’ sea star has a bright orange madreporite. 4. a. Specimen is round and flat with short, fuzz-like spines (live) or smooth without spines (dead)…..………………………………………………………………....Sand dollar b. Specimen has a dome shape with long, thicker spines (live) or lacks spines (dead).…………………………………………………………………………..Green sea urchin Common Life in the Marine Biome Page 2 of 4 Station 2 – Gastropods 1. -
Study on the Economic Benefits of Marine Protected Areas Literature Review Analysis
Study on the economic benefits of Marine Protected Areas Literature review analysis Written by ICF Consulting Services Limited, in association with IEEP and PML Sept 2017 EUROPEAN COMMISSION Executive Agency for Small and Medium-sized Enterprises (EASME) Unit A.3 — EMFF E-mail: [email protected] European Commission B-1049 Brussels EUROPEAN COMMISSION Study on the economic benefits of Marine Protected Areas Literature review analysis Executive Agency for Small and Medium-sized Enterprises (EASME) Contract No EASME/EMFF/2015/1.3.1.8/SI2.737373 2018 EN Study on the economic benefits of Marine Protected Areas Europe Direct is a service to help you find answers to your questions about the European Union. Freephone number (*): 00 800 6 7 8 9 10 11 (*) The information given is free, as are most calls (though some operators, phone boxes or hotels may charge you). LEGAL NOTICE This document has been prepared for the European Commission however it reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein. More information on the European Union is available on the Internet (http://www.europa.eu). Luxembourg: Publications Office of the European Union, 2018 ISBN 978-92-9202-379-9 DOI 10.2826/40733 © European Union, 2018 Study on the economic benefits of Marine Protected Areas Report authors Pantzar, Mia (IEEP) Russi, Daniela (IEEP) Hooper, Tara (PML) Haines, Rupert (ICF) Quality review Rayment, Matt (ICF) Kettunen, Marianne (IEEP) Study on the economic benefits of Marine Protected Areas Table of Contents Executive summary .......................................................................................... -
Giant Pacific Octopus (Enteroctopus Dofleini) Care Manual
Giant Pacific Octopus Insert Photo within this space (Enteroctopus dofleini) Care Manual CREATED BY AZA Aquatic Invertebrate Taxonomic Advisory Group IN ASSOCIATION WITH AZA Animal Welfare Committee Giant Pacific Octopus (Enteroctopus dofleini) Care Manual Giant Pacific Octopus (Enteroctopus dofleini) Care Manual Published by the Association of Zoos and Aquariums in association with the AZA Animal Welfare Committee Formal Citation: AZA Aquatic Invertebrate Taxon Advisory Group (AITAG) (2014). Giant Pacific Octopus (Enteroctopus dofleini) Care Manual. Association of Zoos and Aquariums, Silver Spring, MD. Original Completion Date: September 2014 Dedication: This work is dedicated to the memory of Roland C. Anderson, who passed away suddenly before its completion. No one person is more responsible for advancing and elevating the state of husbandry of this species, and we hope his lifelong body of work will inspire the next generation of aquarists towards the same ideals. Authors and Significant Contributors: Barrett L. Christie, The Dallas Zoo and Children’s Aquarium at Fair Park, AITAG Steering Committee Alan Peters, Smithsonian Institution, National Zoological Park, AITAG Steering Committee Gregory J. Barord, City University of New York, AITAG Advisor Mark J. Rehling, Cleveland Metroparks Zoo Roland C. Anderson, PhD Reviewers: Mike Brittsan, Columbus Zoo and Aquarium Paula Carlson, Dallas World Aquarium Marie Collins, Sea Life Aquarium Carlsbad David DeNardo, New York Aquarium Joshua Frey Sr., Downtown Aquarium Houston Jay Hemdal, Toledo -
Cook's Basics Cook's Basics Cook's Basics
cook'scook's basics basics Helen of Troy bathed in it, biblical figures drank it, Hippocrates prescribed it as medicine, soldiers cleaned their wounds with it during World War I, and today, it is one of the most healthful and widely used condiments. What is this miraculous substance you ask? It's simply vinegar, the product of the fermentation of acetic acid and water. Its beginnings have been traced back 7,000 years ago to the Sumerian civilization, where it was utilized for it cleaning. ALL Today, vinegar is used for innumerable ABOUT BIVALVES To give you the lowdown on bivalves, we shuck these hard-shelled aquatic creatures Words Marisse Gabrielle reyes styling yOyO ZHOU photographs CHarles Chua rECIPE MUriel OpianO Amable RecipE imagE 123rF Brain-less and mostly eye-less and sedentary, these strange creatures are actually living relics of ancient aquatic life. Although their roots trace back to over 500 million years ago, there are currently over 9,000 species of bivalves, with many of them edible. These filter feeders have evolved to include a hard and heavy hinged shell to protect them from predators and other elements. This armor makes them slow-moving and, unfortunately for them, easy to catch. In the case of venus clams, la-la, and cockles, bivalves can be cheap and plentiful. But in the case of oysters, scallops, and abalone, bivalves can be among the most luxurious and expensive foods. These interesting animals can be found in virtually every body of water (such as salty oceans, brackish lakes, and freshwater canals); can be farmed or wild caught; can be eaten raw or cooked; and can be found all over the world. -
ABSTRACT Title of Dissertation: PATTERNS IN
ABSTRACT Title of Dissertation: PATTERNS IN DIVERSITY AND DISTRIBUTION OF BENTHIC MOLLUSCS ALONG A DEPTH GRADIENT IN THE BAHAMAS Michael Joseph Dowgiallo, Doctor of Philosophy, 2004 Dissertation directed by: Professor Marjorie L. Reaka-Kudla Department of Biology, UMCP Species richness and abundance of benthic bivalve and gastropod molluscs was determined over a depth gradient of 5 - 244 m at Lee Stocking Island, Bahamas by deploying replicate benthic collectors at five sites at 5 m, 14 m, 46 m, 153 m, and 244 m for six months beginning in December 1993. A total of 773 individual molluscs comprising at least 72 taxa were retrieved from the collectors. Analysis of the molluscan fauna that colonized the collectors showed overwhelmingly higher abundance and diversity at the 5 m, 14 m, and 46 m sites as compared to the deeper sites at 153 m and 244 m. Irradiance, temperature, and habitat heterogeneity all declined with depth, coincident with declines in the abundance and diversity of the molluscs. Herbivorous modes of feeding predominated (52%) and carnivorous modes of feeding were common (44%) over the range of depths studied at Lee Stocking Island, but mode of feeding did not change significantly over depth. One bivalve and one gastropod species showed a significant decline in body size with increasing depth. Analysis of data for 960 species of gastropod molluscs from the Western Atlantic Gastropod Database of the Academy of Natural Sciences (ANS) that have ranges including the Bahamas showed a positive correlation between body size of species of gastropods and their geographic ranges. There was also a positive correlation between depth range and the size of the geographic range. -
555 Nautilus Bercangkang Rapuh Dari Teluk Tomini
Open Access, August 2020 J. Ilmu dan Teknologi Kelautan Tropis, 12(2): 555-563 p-ISSN : 2087-9423 http://journal.ipb.ac.id/index.php/jurnalikt e-ISSN : 2620-309X DOI: http://doi.org/10.29244/jitkt.v12i2.25795 NAUTILUS BERCANGKANG RAPUH DARI TELUK TOMINI KABUPATEN PARIGI MOUTONG SULAWESI TENGAH, INDONESIA PAPER NAUTILUSES FROM TOMINI BAY PARIGI MOUTONG REGENCY CENTRAL SULAWESI, INDONESIA Fina Saffuteri Sarif1*, Delianis Pringgenies2, Agus Hartoko2, & Mada T Sibero2 1Program Studi Manajemen Sumberdaya Pantai, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang, 50275, Indonesia 2Departemen Ilmu Kelautan, FPIK, Universitas Diponegoro, Semarang, 50275, Indonesia *E-mail: [email protected] ABSTRACT Paper nautiluses are classified as Cephalopoda class, Argonautidae family. The aims of this research to identification of shell morphological characters of paper Nautiluses were collected at 1,000 m depth. The results showed that out of all the samples successfully collected during the course of the study (March till December 2016), only 6 specimens were found at 70-80 depth, with 4 of those species are egg-laying, and the other 2 are not. From the 6 species found, 2 were Argonauta argo with average shell length of 34.05 mm, shell width of 22.20 mm, and average aperture width of 11.15 mm. A. argo is known to possess 8 tentacles, 4 long and 2 short appendages. The shell color is brighter than that of A. hians, with flatter shell and two strips of keels located near each other along the dorsal and soft side, along ventral side thickens and sharpens. A. hians possess average shell length of 47.02 mm, shell width of 33.07 mm and aperture width of 21.30 mm.