Isolation of Eye Selector Genes in Two Bivalvian Molluscs, Arca Noae and Pecten Maximus
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Effects of Ocean Acidification on Sponge Communities
Marine Ecology. ISSN 0173-9565 ORIGINAL ARTICLE Effects of ocean acidification on sponge communities Claire Goodwin1, Riccardo Rodolfo-Metalpa2, Bernard Picton1 & Jason M. Hall-Spencer2 1 National Museums Northern Ireland, Holywood, County Down, UK 2 Marine Biology and Ecology Research Centre, Plymouth University, Plymouth, UK Keywords Abstract CO2 vents; Mediterranean; ocean acidification; Porifera; sponge; volcanic vents. The effects of ocean acidification on lower invertebrates such as sponges may be pronounced because of their low capacity for acid–base regulation. However, so Correspondence far, most studies have focused on calcifiers. We present the first study of the Claire Goodwin, National Museums Northern effects of ocean acidification on the Porifera. Sponge species composition and Ireland, 153 Bangor Road, Cultra, Holywood, cover along pH gradients at CO2 vents off Ischia (Tyrrhenian Sea, Italy) was County Down BT20 5QZ, UK. measured at sites with normal pH (8.1–8.2), lowered pH (mean 7.8–7.9, min E-mail: [email protected] 7.4–7.5) and extremely low pH (6.6). There was a strong correlation between pH Accepted: 4 July 2013 and both sponge cover and species composition. Crambe crambe was the only species present in any abundance in the areas with mean pH 6.6, seven species doi: 10.1111/maec.12093 were present at mean pH 7.8–7.9 and four species (Phorbas tenacior, Petrosia fici- formis, Chondrilla nucula and Hemimycale columella) were restricted to sites with normal pH. Sponge percentage cover decreased significantly from normal to acidified sites. No significant effect of increasing CO2 levels and decreasing pH was found on spicule form in Crambe crambe. -
Os Nomes Galegos Dos Moluscos
A Chave Os nomes galegos dos moluscos 2017 Citación recomendada / Recommended citation: A Chave (2017): Nomes galegos dos moluscos recomendados pola Chave. http://www.achave.gal/wp-content/uploads/achave_osnomesgalegosdos_moluscos.pdf 1 Notas introdutorias O que contén este documento Neste documento fornécense denominacións para as especies de moluscos galegos (e) ou europeos, e tamén para algunhas das especies exóticas máis coñecidas (xeralmente no ámbito divulgativo, por causa do seu interese científico ou económico, ou por seren moi comúns noutras áreas xeográficas). En total, achéganse nomes galegos para 534 especies de moluscos. A estrutura En primeiro lugar preséntase unha clasificación taxonómica que considera as clases, ordes, superfamilias e familias de moluscos. Aquí apúntase, de maneira xeral, os nomes dos moluscos que hai en cada familia. A seguir vén o corpo do documento, onde se indica, especie por especie, alén do nome científico, os nomes galegos e ingleses de cada molusco (nalgún caso, tamén, o nome xenérico para un grupo deles). Ao final inclúese unha listaxe de referencias bibliográficas que foron utilizadas para a elaboración do presente documento. Nalgunhas desas referencias recolléronse ou propuxéronse nomes galegos para os moluscos, quer xenéricos quer específicos. Outras referencias achegan nomes para os moluscos noutras linguas, que tamén foron tidos en conta. Alén diso, inclúense algunhas fontes básicas a respecto da metodoloxía e dos criterios terminolóxicos empregados. 2 Tratamento terminolóxico De modo moi resumido, traballouse nas seguintes liñas e cos seguintes criterios: En primeiro lugar, aprofundouse no acervo lingüístico galego. A respecto dos nomes dos moluscos, a lingua galega é riquísima e dispomos dunha chea de nomes, tanto específicos (que designan un único animal) como xenéricos (que designan varios animais parecidos). -
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. -
On the Cephalopod Phosphagen by Ernest Baldwin, B.A
222 ON THE CEPHALOPOD PHOSPHAGEN BY ERNEST BALDWIN, B.A. (From the Biochemical Laboratory, Cambridge, and the Marine Biological Station, Tamaris, Var, France.) (Received 8th November, 1932.) (With Four Text-figures.) INTRODUCTION. THE comparative researches of Eggleton & Eggleton(s) on the distribution of phosphagen made it clear that while creatine phosphate is very widely distributed amongst the vertebrates, it is not present in the invertebrates. Shortly afterwards, a new phosphagenic substance was isolated from crab muscle by Meyerhof & Lohmann(n, 12) and shown to be arginine phosphate, while the later work of Lundsgaard (9) has made it certain that this compound plays in these tissues a part exactly analogous to that played by the creatine compound in vertebrate muscles. Later, Meyerhof (10) examined a number of invertebrates, representative of several phyla, and came to the conclusion that arginine phosphate is present in Holothuria, Pecten and Sipunculus. Cephalopod muscle contained no phosphagen. The case of the cephalopods was further examined by Needham, Needham, Baldwin & Yudkin (13), who not only found that the muscles of Sepia and of Octopus do contain phosphagen, but were also able to investigate its ontogeny in the former (14). There seemed no reason to think that the compound present was any- thing other than the arginine compound (8). Ackermann, Holtz & Kutscherw claim to have isolated the copper nitrate salt of arginine from extracts of the cephalopod Eledone moschata, while Okuda(is) has made a similar claim in the case of Loligo breekert, whereas Iseki (7) has been able to isolate no arginine from extracts of Octopus, finding in its place a compound which he isolated in the form of its picrate, and which he thinks may be a methyl agmatine. -
General Introduction and Objectives 3
General introduction and objectives 3 General introduction: General body organization: The phylum Porifera is commonly referred to as sponges. The phylum, that comprises more than 6,000 species, is divided into three classes: Calcarea, Hexactinellida and Demospongiae. The latter class contains more than 85% of the living species. They are predominantly marine, with the notable exception of the family Spongillidae, an extant group of freshwater demosponges whose fossil record begins in the Cretaceous. Sponges are ubiquitous benthic creatures, found at all latitudes beneath the world's oceans, and from the intertidal to the deep-sea. Sponges are considered as the most basal phylum of metazoans, since most of their features appear to be primitive, and it is widely accepted that multicellular animals consist of a monophyletic group (Zrzavy et al. 1998). Poriferans appear to be diploblastic (Leys 2004; Maldonado 2004), although the two cellular sheets are difficult to homologise with those of the rest of metazoans. They are sessile animals, though it has been shown that some are able to move slowly (up to 4 mm per day) within aquaria (e.g., Bond and Harris 1988; Maldonado and Uriz 1999). They lack organs, possessing cells that develop great number of functions. The sponge body is lined by a pseudoepithelial layer of flat cells (exopinacocytes). Anatomically and physiologically, tissues of most sponges (but carnivorous sponges) are organized around an aquiferous system of excurrent and incurrent canals (Rupert and Barnes 1995). These canals are lined by a pseudoepithelial layer of flat cells (endopinacocytes).Water flows into the sponge body through multiple apertures (ostia) General introduction and objectives 4 to the incurrent canals which end in the choanocyte chambers (Fig. -
Seasonal Variation of Biochemical Composition of Noah\'S Ark Shells (Arca Noae L. 1758) in a Tunisian Coastal Lagoon in Rela
Aquat. Living Resour. 2018, 31, 14 Aquatic © EDP Sciences 2018 https://doi.org/10.1051/alr/2018002 Living Resources Available online at: www.alr-journal.org RESEARCH ARTICLE Seasonal variation of biochemical composition of Noah's ark shells (Arca noae L. 1758) in a Tunisian coastal lagoon in relation to its reproductive cycle and environmental conditions Feriel Ghribi*, Dhouha Boussoufa, Fatma Aouini, Safa Bejaoui, Imene Chetoui, Imen Rabeh and M'hamed El Cafsi Unit of Physiology and Aquatic Environment, Faculty of Science of Tunis, University of Tunis El Manar, 2092 Tunis, Tunisia Received 4 July 2017 / Accepted 28 January 2018 Handling Editor: Pierre Boudry Abstract – The seasonal changes in biochemical composition of the edible bivalve Arca noae harvested from a Mediterranean coastal lagoon (Bizerte lagoon, Tunisia) were investigated from October 2013 to September 2014. Potential food sources and nutritional quality indices (NQI) were determined by analyzing the fatty acid profiles of their tissues during an annual reproductive cycle. Results showed that A. noae had moisture (73.8–82%) and protein (24.1–58.6% dry weight) as major components, followed by lipid (10.4– 28.8% dry weight) and glycogen (4.05–14.6% dry weight). A. noae accumulated lipid and glycogen for gonadal development during both maturation periods (late autumn/late spring–summer) to be used during spawning periods (winter/late summer–early autumn). However, proteins were mainly used to support reproductive allocation and played an important role on the energetic maintenance. Lipid and glycogen were found to be significantly related to temperature, salinity and chlorophyll a (p < 0.05). -
National Monitoring Program for Biodiversity and Non-Indigenous Species in Egypt
National monitoring program for biodiversity and non-indigenous species in Egypt January 2016 1 TABLE OF CONTENTS page Acknowledgements 3 Preamble 4 Chapter 1: Introduction 8 Overview of Egypt Biodiversity 37 Chapter 2: Institutional and regulatory aspects 39 National Legislations 39 Regional and International conventions and agreements 46 Chapter 3: Scientific Aspects 48 Summary of Egyptian Marine Biodiversity Knowledge 48 The Current Situation in Egypt 56 Present state of Biodiversity knowledge 57 Chapter 4: Development of monitoring program 58 Introduction 58 Conclusions 103 Suggested Monitoring Program Suggested monitoring program for habitat mapping 104 Suggested marine MAMMALS monitoring program 109 Suggested Marine Turtles Monitoring Program 115 Suggested Monitoring Program for Seabirds 117 Suggested Non-Indigenous Species Monitoring Program 121 Chapter 5: Implementation / Operational Plan 128 Selected References 130 Annexes 141 2 AKNOWLEGEMENTS 3 Preamble The Ecosystem Approach (EcAp) is a strategy for the integrated management of land, water and living resources that promotes conservation and sustainable use in an equitable way, as stated by the Convention of Biological Diversity. This process aims to achieve the Good Environmental Status (GES) through the elaborated 11 Ecological Objectives and their respective common indicators. Since 2008, Contracting Parties to the Barcelona Convention have adopted the EcAp and agreed on a roadmap for its implementation. First phases of the EcAp process led to the accomplishment of 5 steps of the scheduled 7-steps process such as: 1) Definition of an Ecological Vision for the Mediterranean; 2) Setting common Mediterranean strategic goals; 3) Identification of an important ecosystem properties and assessment of ecological status and pressures; 4) Development of a set of ecological objectives corresponding to the Vision and strategic goals; and 5) Derivation of operational objectives with indicators and target levels. -
Sponge Fauna in the Sea of Marmara
www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 16: 51-59 (2016) DOI: 10.4194/1303-2712-v16_1_06 RESEARCH PAPER Sponge Fauna in the Sea of Marmara Bülent Topaloğlu1,*, Alper Evcen2, Melih Ertan Çınar2 1 Istanbul University, Department of Marine Biology, Faculty of Fisheries, 34131 Vezneciler, İstanbul, Turkey. 2 Ege University, Department of Hydrobiology, Faculty of Fisheries, 35100 Bornova, İzmir, Turkey. * Corresponding Author: Tel.: +90.533 2157727; Fax: +90.512 40379; Received 04 December 2015 E-mail: [email protected] Accepted 08 February 2016 Abstract Sponge species collected along the coasts of the Sea of the Marmara in 2012-2013 were identified. A total of 30 species belonging to 21 families were found, of which four species (Ascandra contorta, Paraleucilla magna, Raspailia (Parasyringella) agnata and Polymastia penicillus) are new records for the eastern Mediterranean, while six species [A. contorta, P. magna, Chalinula renieroides, P. penicillus, R. (P.) agnata and Spongia (Spongia) nitens] are new records for the marine fauna of Turkey and 12 species are new records for the Sea of Marmara. Sponge specimens were generally collected in shallow water, but two species (Thenea muricata and Rhizaxinella elongata) were found at depths deeper than 100 m. One alien species (P. magna) was found at 10 m depth at station K18 (Büyükada). The morphological and distributional features of the species that are new to the Turkish marine fauna are presented. Keywords: Porifera, Benthos, Invertebrate, Turkish Straits System. Marmara Denizi Sünger Faunası Özet Bu çalışmada, Marmara Denizi ve kıyılarında 2012-2013 yılları arasında toplanan Sünger örnekleri tanımlanmıştır. -
Arakawa, Kohman Y. Citation PUBLICATIONS of the SETO
Title STUDIES ON THE MOLLUSCAN FAECES (II) Author(s) Arakawa, Kohman Y. PUBLICATIONS OF THE SETO MARINE BIOLOGICAL Citation LABORATORY (1965), 13(1): 1-21 Issue Date 1965-06-30 URL http://hdl.handle.net/2433/175396 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University STUDIES ON THE MOLLUSCAN FAECES (II) KORMAN Y. ARAKAwA Hiroshima Fisheries Experimental Station, Kusatsu-minami-cho, Hiroshima, Japan With Plates I-VI and 5 Text-figures The work recorded in this paper is a continuation of the study on the molluscan faecal pellets, which has already been presented partly in a preliminary communication (ARAKAWA, 1962) and an initial paper of this series (ARAKAWA, '63). In this paper are included the descriptions of the pellets of fourty-four more molluscan species which were collected at several locations in the Seto Inland Sea and the vicinities in these four years. Before passing to the descriptions, I wish to express my cordial thanks to the following gentlemen who offered me facilities or help in earring out the present work: Dr. Toshijiro KAWAMURA (Hiroshima University), Dr. Ryozo YAGIU (Hiroshima Univ.) Dr. Takasi ToKIOKA (Seto Marine Biological Labora tory), Dr. Yoshimitsu 0GASAWARA (Naikai Regional Fisheries Research Lab.), Dr. Huzio UTINOMI (Seto Mar. Bioi. Lab.), Mr. Nobuo MATSUNAGA (Isumi Senior High School), Dr. Katura OYAMA (Geological Survey), Dr. Iwao T AKI (Hiroshima Univ.), Dr. Kikutaro BABA (Osaka Gakugei Univ.), Dr. Shigeru 0TA (National Pearl Research Lab.), Prof. Jiro SE:No (Tokyo Univ. of Fisheries) and Mr. Masa-aki HAMAr (Hiroshima Fish. Exp. Sta:). MATERIAL The scientific names, localities and types of faeces of respective species treated in this work are listed below. -
The Shell As a Symbolic Design Motif
THE SHELL AS A SYMBOLIC DESIGN MOTIF: RELIGIOUS SIGNIFICANCE AND USE IN SELECTED AREAS OF THE MISSION SAN XAVIER DEL BAC TUCSON, ARIZONA By LINDA ANNE TARALDSON Bachelor of Science University of Arizona Tucson, Arizona 1964 Submitted to the faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, 1968 ',' ,; OKLAHOMA STATE UNIVERSflY LIBRARY OCT ~ij 1968 THE SHELL AS A SYMBOLIC DESIGN MOTIF:,, ... _ RELIGIOUS SIGNIFICANCE AND USE IN SELECTED AREAS OF THE MISSION SAN XAVIER DEL BAC TUCSON, ARIZONA Thesis Approved: Dean of the Graduate College 688808 ii PREFACE The creative Interior Designer _needs to have a thorough knowledge and understanding of history and a skill in correlating authentic de sl-gns of the past with the present. Sensitivity to the art and designs of the past aids the Interior Designer in adapting them into the crea-_ tion of the contemporary interior, Des.igns of the past can have an integral relationship with contemporary design, Successful designs are those which have survived and have transcended time, Thus, the Interior Designer needs to know the background of a design, the original use of a design, and the period to which a design belongs in order to success fully adapt the design to the contemporary creation of beautyo This study of the shell as a symbolic design motif began with a profound interest in history, a deep love for a serene desert mission. and a probing curiosity concerning an outstanding design used in con -
Cultivo De Larvas Y Juveniles De Almeja Voladora Euvola Vogdesi (Pteroida: Pectinidae)
Lat. Am. J. Aquat. Res., 43(3): 514-525, 2015 Cultivo de larvas y juveniles de Euvola vogdesi 514 1 DOI: 10.3856/vol43-issue3-fulltext-12 Research Article Cultivo de larvas y juveniles de almeja voladora Euvola vogdesi (Pteroida: Pectinidae) Pablo Monsalvo-Spencer1, Teodoro Reynoso-Granados1, Gabriel Robles-Villegas1 Miguel Robles-Mungaray2 & Alfonso N. Maeda-Martínez1 1Centro de Investigaciones Biológicas del Noroeste S.C., Instituto Politécnico Nacional 195 Playa Palo de Santa Rita Sur, La Paz, B.C.S., México 2Acuacultura Robles, S.P.R. DE R.L., Privada, Quintana Roo 4120, La Paz, B.C.S., México Corresponding author: Teodoro Reynoso-Granados ([email protected]) RESUMEN. El trabajo describe por primera vez el desarrollo larvario hasta juvenil de Euvola vogdesi y las experiencias en el cultivo larvario de esta especie. Los reproductores en acondicionamiento gonádico alcanzaron la madurez total a los 42 ± 5 días. La inducción al desove se realizó con los métodos de shock térmico (18- 20°C/20 min) e inyección intragonadal de serotonina (0,3 mL a 0,25 mM). En experimentos del efecto de las temperaturas 20, 23 y 25°C en el crecimiento larvario, se obtuvo a 25°C el mayor crecimiento. A esta temperatura, los cultivos larvarios con cambios en la densidad y dieta entre 1992 y 2001 mostraron diferencias significativas en el crecimiento, logrando disminuir el tiempo de cultivo larvario de 25 días a 11 días. En la etapa de pre-engorda, los juveniles de 3,5-4,0 mm de longitud de concha, tuvieron una supervivencia de 3-5%, a los 55 ± 5 días. -
Heavy Metals in the Antarctic Scallop Adam Ussium Colbecki
MARINE ECOLOGY PROGRESS SERIES Vol. 67: 27-33, 1990 Published September 20 Mar. Ecol. Prog. Ser. l Heavy metals in the Antarctic scallop Adam ussium colbecki Dipartirnento di Biologia Anirnale, Universita di Modena, via Universita 4,1-41100 Modena, Italy Dipartirnento di Biomedicina Sperimentale Infettiva e Pubblica, Universita di Pisa. via Volta 4.1-56100 Pisa, Italy ABSTRACT: Cu, Fe, Cr. Cd, Mn and Zn concentrations were determined in different organs of the Antarctic scallop Adarnussium colbecki (Smith) and compared with those found in Pecten jacobaeus L., a scallop of temperate waters, and wlth literature values for other Pectinidae. The digestive gland of A. colbeck, was the target organ for Cu, Fe, Cr and Cd, whereas Mn and Zn were found mainly in the kidney. Cd concentration in the digestive gland of A. colbecki was higher than that in the same organ of P. jacobaeus, indicating a marked ability of the Antarctic scallop to concentrate this metal. However, in A. colbecki renal concentrations of both Mn and Zn were considerably lower than those measured in P. lacobaeus and other Pectinidae, and may be related to the scarcity of concretions observed in its kidney. INTRODUCTION Pecten lacobaeus L., a hermaphroditic species of temperate waters, was used for comparison between Better insight into the ecology of the Antarctic is Adarnussiurn colbecki and other non-Antarctic scallops. today of great importance considering the increasing Data on heavy metal levels in other species of Pectinidae interest shown in the resources of this continent. Col- were also used for comparison with A. colbecki. lecting new environmental data will serve as the baseline for evaluating future environmental impact of pollutants in this remote area.