Biogeographical Patterns of Endolithic Infestation in an Invasive and an Indigenous Intertidal Marine Ecosystem Engineer
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Mediterranean Marine Science Vol. 9, 2008 Molluscan species of minor commercial interest in Hellenic seas: Distribution, exploitation and conservation status KATSANEVAKIS S. European Commission, Joint Research Centre, Institute for Environment and Sustainability, Ispra LEFKADITOU E. Hellenic Centre for Marine Research, Institute of Marine Biological Resources, Agios Kosmas, P.C. 16610, Elliniko, Athens GALINOU-MITSOUDI S. Fisheries & Aquaculture Technology, Alexander Technological Educational Institute of Thessaloniki, 63200, Nea Moudania KOUTSOUBAS D. University of the Aegean, Department of Marine Science, University Hill, 81100 Mytilini ZENETOS A. Hellenic Centre for Marine Research, Institute of Marine Biological Resources, Agios Kosmas, P.C. 16610, Elliniko, Athens https://doi.org/10.12681/mms.145 Copyright © 2008 To cite this article: KATSANEVAKIS, S., LEFKADITOU, E., GALINOU-MITSOUDI, S., KOUTSOUBAS, D., & ZENETOS, A. (2008). Molluscan species of minor commercial interest in Hellenic seas: Distribution, exploitation and conservation status. Mediterranean Marine Science, 9(1), 77-118. doi:https://doi.org/10.12681/mms.145 http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 27/09/2021 17:44:35 | Review Article Mediterranean Marine Science Volume 9/1, 2008, 77-118 Molluscan species of minor commercial interest in Hellenic seas: Distribution, exploitation and conservation status S. KATSANEVAKIS1, E. LEFKADITOU1, S. GALINOU-MITSOUDI2, D. KOUTSOUBAS3 and A. ZENETOS1 1 Hellenic Centre for Marine Research, Institute of Marine Biological -
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). -
Antimicrobial and Antioxidant Properties of the Crude Peptide
Borquaye et al. SpringerPlus (2015) 4:500 DOI 10.1186/s40064-015-1266-2 RESEARCH Open Access Antimicrobial and antioxidant properties of the crude peptide extracts of Galatea paradoxa and Patella rustica Lawrence Sheringham Borquaye*, Godfred Darko, Edward Ocansey and Emmanuel Ankomah Abstract This study evaluated the antimicrobial and antioxidant activities of crude peptide extracted from Galatea paradoxa (G. paradoxa) and Patella rustica (P. rustica). The extracts were tested against eight strains of bacteria (Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Salmonella typhi, Enterococcus feacalis, Klebseilla pneumoniae, Streptococcus pneumoniae, Pseudomonas aeruginosa) and one strain of fungi (Candida albicans) using agar well diffusion and broth dilution assays. The extracts from G. paradoxa demonstrated a high degree of activity against the bacteria strains but were inactive towards the fungus. P. rustica, however, showed a markedly higher antifungal activity but little antibacte- rial effect. The minimum inhibitory concentrations (MIC) of the extracts determined by the broth tube dilution assay were 17 mg/mL of G. paradoxa against the entire spectrum of microorganisms tested except for C. albicans which was 20 mg/mL. The MIC of the extracts of P. rustica was 13 mg/mL against all the strains of microorganisms tested except for E. feacalis (17 mg/mL), K. pneumoniae (17 mg/mL) and C. albicans (13 mg/mL). Antioxidant activity using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay showed scavenging ability on the DPPH radical was 56.77 % at 0.39 mg/ mL for G. paradoxa and 79.77 % at 0.39 mg/mL for P. rustica. The study indicates that the crude peptide extracts from the two molluscs have promising antimicrobial and antioxidant activities that can be harnessed as leads for potential bioactive compounds. -
Extreme Organisms on Earth Show Us Just How Weird Life Elsewhere Could Be. by Chris Impey Astrobiology
Astrobiology Extreme organisms on Earth show us just how weird life elsewhere could be. by Chris Impey How life could thrive on hostile worlds Humans have left their mark all over Earth. We’re proud of our role as nature’s generalists — perhaps not as swift as the gazelle or as strong as the gorilla, but still pretty good at most things. Alone among all species, technology has given us dominion over the planet. Humans are endlessly plucky and adaptable; it seems we can do anything. Strain 121 Yet in truth, we’re frail. From our safe living rooms, we may admire the people who conquer Everest or cross deserts. But without technology, we couldn’t live beyond Earth’s temperate zones. We cannot survive for long in temperatures below freezing or above 104° Fahrenheit (40° Celsius). We can stay underwater only as long as we can hold our breath. Without water to drink we’d die in 3 days. Microbes, on the other hand, are hardy. And within the microbial world lies a band of extremists, organisms that thrive in conditions that would cook, crush, smother, and dissolve most other forms of life. Collectively, they are known as extremophiles, which means, literally, “lovers of extremes.” Extremophiles are found at temperatures above the boiling point and below the freezing point of water, in high salinity, and in strongly acidic conditions. Some can live deep inside rock, and others can go into a freeze-dried “wait state” for tens of thousands of years. Some of these microbes harvest energy from meth- ane, sulfur, and even iron. -
Patella Ferruginea
1 INFORMACIÓN COMPLEMENTARIA Patella ferruginea AUTORES JAVIER GUALLART Y JOSÉ TEMPLADO Esta ficha forma parte de la publicaciónBases ecológicas preliminares para la conservación de las especies de interés comunitario en España: invertebrados, promovida por la Dirección General de Calidad y Evaluación Ambiental y Medio Natural (Ministerio de Agricultura, Alimentación y Medio Ambiente). Dirección técnica del proyecto Rafael Hidalgo Realización y producción Grupo Tragsa Coordinación general Roberto Matellanes Ferreras y Ramón Martínez Torres Coordinación técnica Juan Carlos Simón Zarzoso Coordinación del grupo de artrópodos Eduardo Galante Coordinación de los grupos de moluscos, cnidarios, equinodermos y anélidos José Templado Edición Eva María Lázaro Varas Maquetación Rafael Serrano Cordón Las opiniones que se expresan en esta obra son responsabilidad de los autores y no necesariamente de la Dirección General de Calidad y Evaluación Ambiental y Medio Natural (Ministerio de Agricultura, Alimentación y Medio Ambiente). NIPO: 280-12-259-4 3 PRESENTACIÓNPRESENTACIÓN La coordinación general del grupo de moluscos ha sido encargada a la siguiente institución Sociedad Española de Malacología Coordinador: José Templado Autores: Javier Guallart y José Templado Fotografía de portada: Javier Guallart A efectos bibliográficos la obra completa debe citarse como sigue: VV.AA. 2012. Bases ecológicas preliminares para la conservación de las especies de interés comunitario en España: Invertebrados. Ministerio de Agricultura, Alimentación y Medio Ambiente. Madrid. A efectos bibliográficos esta ficha debe citarse como sigue: Guallart, J. y Templado, J. 2012. Patella ferruginea. En: VV.AA., Bases ecológicas preliminares para la conservación de las especies de interés comunitario en España: Invertebrados. Ministerio de Agricultura, Alimentación y Medio Ambiente. Madrid. 86 pp. -
Seasonal Variations of the Biometric Indices of Patella Rustica Linnaeus, 1758 (Gastropoda Patellidae) from Contrasted Sites of the Western Algerian Coast
Biodiversity Journal , 2018, 9 (3): 205–212 DOI: 10.31396/Biodiv.Jour.2018.9.3.205.212 Seasonal variations of the biometric indices of Patella rustica Linnaeus, 1758 (Gastropoda Patellidae) from contrasted sites of the western Algerian coast Lilia Ait Mohamed Amer 1,2,* , Imene Benali 1,3 , Saliha Dermeche 1 & Mohamed Bouderbala 1 1Laboratory: Network for Environmental Monitoring (LRSE), Department of Biology, University of Oran 1 “Ahmed Ben Bella”, BP 1524 El M’naouer, 31000 Oran, Algeria 2Department Science of the Sea and Aquaculture, Faculty of Nature and Life Science, University of Mostaganem Ahmed Ibn Badis, (Ex-Institute of Agricultural Technology, ITA) 2700 Mostaganem, Algeria 3Department of Applied Molecular Genetics, Faculty of Natural and Life Sciences, University of Science and Technology Mohamed Boudiaf USTO/MB, BP 1505 El Menaouar, 31036 Oran, Algeria *Corresponding author ABSTRACT The objective of this study is the evaluation of the resistance of the bioindicative species Patella rustica Linnaeus, 1758 (Gastropoda Patellidae) existing in the contrasted sites of the Algerian occidental seaboard through a follow-up of the seasonal variations of biometric indices. It is based on the analysis of biometric parameters of 600 individuals of this Gastropod mollusk from five sites: Madagh (MD), Bouzedjar Harbor (BH), Ain El Turck (AT), Oran Harbor (OH), and Kristel (KR). The seasonal sampling has been carried out and measurements on the height of the shell (H), its length (L), and its total weight (TW) are taken for all the populations of P. rustica . The correlation of the different measurements (length-height, length-total weight, height-total weight), with the help of the power curve and following STUDENT “ t ” test, DUNCAN, and the ACP, reveals the development of its shell first in height, followed in second position by the length, and this for the five sites under study. -
Astr 450 Assignment 5: Earth-Based Life in Extreme Environments Due Thu Feb 19, 2009
Astr 450 Assignment 5: Earth-based life in extreme environments due Thu Feb 19, 2009 An ”extremophile” is an organism that thrives in extreme environments, where ”extreme” means different from the Earth surface norms in temperature, pressure, or composition. ”Thrive” in this context means that these conditions are ideal for the organism, and in fact, most extremophiles would perish if brought to Earth-normal conditions. For each of the following categories of extremophile, identify (i) the extreme condition with numerical values, and (ii) at least one location on Earth where these extreme conditions are realized, and (iii) if in your researches you come across a type of organism that does not ultimately rely upon the Sun as its source of energy, then please make a note if it. 1. Acidophile 2. Alkalophile 3. Thermophile 4. Psychrophile 5. Piezophile (also called a barophile) 6. Lithophile (also called an endolith) 7. Halophile You must include a bibliographic entry for all sources you use. You can organize this information in chart form if you wish, but it is certainly not required. Finally, quickly skim the wikipedia article on the bacterium named “deinococcus radiodurans” and tell me the (surprising) extreme condition it can tolerate which is NOT on the list above. Ref: http://en.wikipedia.org/wiki/Deinococcus radiodurans Requirements for a good assignment • The assignment will be graded strictly, as expected for a 400-level course. The assignment is graded out of 30 points. • Have your name, SID, and a word count at the top of the paper. Use question-and-answer format when writing your assignment, do NOT hand in a run-on paragraph (50% penalty). -
MARINE MOLLUSCS Introduction Chronology of the Samples
APPENDIX G: MARINE MOLLUSCS by Greg Campbell Introduction This section presents the analysis and conclusions based on the 28,980 identifiable items of marine invertebrate organism recovered from 49 samples of the 22 deposits recognized as containing this type of remains. Of the identifiable items, 3400 were quantified by their dimensions, producing a dataset of approximately 10,000 measurements. While not all the assemblage was weighed, quantification by weight to the nearest gram was undertaken for 16.5 kg of these remains and of associated material, producing a dataset of approximately 320 weights. Chronology of the samples Of those deposits with samples containing shell, the earliest is from the Iron Age layer 644 in the south part of Trench 41, from the La Tène final period (c.120–c.50 BC). Shell-bearing samples from the early Roman Empire (c.50 BC–AD 260) came from two successive shell- rich layers (643 followed by 646) in the south corner of the building formed by walls F726 and F731 in the south part of Trench 41. Shell-bearing samples from the Gallic Empire (AD 260–AD 600) came from the base fill 523 of feature F600 pre-dating the gate structure in Trench 38, and from the very large shallow pit F1081 in the plot of land to the rear of post- built structure F1000 in the central part of Trench 41. Samples were taken from the pit’s initial fill 700 (rich in sea urchins), later fill 685, and final fill 681 (Sample 682 from its north part, and Sample 678 from its southern part and probably later, as the pit seems to have been filled in from the north side). -
Mollusc Fauna of Iskenderun Bay with a Checklist of the Region
www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 12: 171-184 (2012) DOI: 10.4194/1303-2712-v12_1_20 SHORT PAPER Mollusc Fauna of Iskenderun Bay with a Checklist of the Region Banu Bitlis Bakır1, Bilal Öztürk1*, Alper Doğan1, Mesut Önen1 1 Ege University, Faculty of Fisheries, Department of Hydrobiology Bornova, Izmir. * Corresponding Author: Tel.: +90. 232 3115215; Fax: +90. 232 3883685 Received 27 June 2011 E-mail: [email protected] Accepted 13 December 2011 Abstract This study was performed to determine the molluscs distributed in Iskenderun Bay (Levantine Sea). For this purpose, the material collected from the area between the years 2005 and 2009, within the framework of different projects, was investigated. The investigation of the material taken from various biotopes ranging at depths between 0 and 100 m resulted in identification of 286 mollusc species and 27542 specimens belonging to them. Among the encountered species, Vitreolina cf. perminima (Jeffreys, 1883) is new record for the Turkish molluscan fauna and 18 species are being new records for the Turkish Levantine coast. A checklist of Iskenderun mollusc fauna is given based on the present study and the studies carried out beforehand, and a total of 424 moluscan species are known to be distributed in Iskenderun Bay. Keywords: Levantine Sea, Iskenderun Bay, Turkish coast, Mollusca, Checklist İskenderun Körfezi’nin Mollusca Faunası ve Bölgenin Tür Listesi Özet Bu çalışma İskenderun Körfezi (Levanten Denizi)’nde dağılım gösteren Mollusca türlerini tespit etmek için gerçekleştirilmiştir. Bu amaçla, 2005 ve 2009 yılları arasında sürdürülen değişik proje çalışmaları kapsamında bölgeden elde edilen materyal incelenmiştir. -
Population Characteristics of the Limpet Patella Caerulea (Linnaeus, 1758) in Eastern Mediterranean (Central Greece)
water Article Population Characteristics of the Limpet Patella caerulea (Linnaeus, 1758) in Eastern Mediterranean (Central Greece) Dimitris Vafidis, Irini Drosou, Kostantina Dimitriou and Dimitris Klaoudatos * Department of Ichthyology and Aquatic Environment, School of Agriculture Sciences, University of Thessaly, 38446 Volos, Greece; dvafi[email protected] (D.V.); [email protected] (I.D.); [email protected] (K.D.) * Correspondence: [email protected] Received: 27 February 2020; Accepted: 19 April 2020; Published: 21 April 2020 Abstract: Limpets are pivotal for structuring and regulating the ecological balance of littoral communities and are widely collected for human consumption and as fishing bait. Limpets of the species Patella caerulea were collected between April 2016 and April 2017 from two sites, and two samplings per each site with varying degree of exposure to wave action and anthropogenic pressure, in Eastern Mediterranean (Pagasitikos Gulf, Central Greece). This study addresses a knowledge gap on population characteristics of P. caerulea populations in Eastern Mediterranean, assesses population structure, allometric relationships, and reproductive status. Morphometric characteristics exhibited spatio-temporal variation. Population density was significantly higher at the exposed site. Spatial relationship between members of the population exhibited clumped pattern of dispersion during spring. Broadcast spawning of the population occurred during summer. Seven dominant age groups were identified, with the dominant cohort in the third-year -
Patellid Limpets: an Overview of the Biology and Conservation of Keystone Species of the Rocky Shores
Chapter 4 Patellid Limpets: An Overview of the Biology and Conservation of Keystone Species of the Rocky Shores Paulo Henriques, João Delgado and Ricardo Sousa Additional information is available at the end of the chapter http://dx.doi.org/10.5772/67862 Abstract This work reviews a broad spectrum of subjects associated to Patellid limpets’ biology such as growth, reproduction, and recruitment, also the consequences of commercial exploitation on the stocks and the effects of marine protected areas (MPAs) in the biology and populational dynamics of these intertidal grazers. Knowledge of limpets’ biological traits plays an important role in providing proper background for their effective man- agement. This chapter focuses on determining the effect of biotic and abiotic factors that influence these biological characteristics and associated geographical patterns. Human exploitation of limpets is one of the main causes of disturbance in the intertidal ecosys- tem and has occurred since prehistorical times resulting in direct and indirect alterations in the abundance and size structure of the target populations. The implementation of MPAs has been shown to result in greater biomass, abundance, and size of limpets and to counter other negative anthropogenic effects. However, inefficient planning and lack of surveillance hinder the accomplishment of the conservation purpose of MPAs. Inclusive conservation approaches involving all the stakeholders could guarantee future success of conservation strategies and sustainable exploitation. This review also aims to estab- lish how beneficial MPAs are in enhancing recruitment and yield of adjacent exploited populations. Keywords: Patellidae, limpets, fisheries, MPAs, conservation 1. Introduction The Patellidae are one of the most successful families of gastropods that inhabit the rocky shores from the supratidal to the subtidal, a marine habitat subject to some of the most © 2017 The Author(s). -
Effects of Ocean Acidification on the Shells of Four Mediterranean Gastropod Species Near a CO 2 Seep
University of Plymouth PEARL https://pearl.plymouth.ac.uk Faculty of Science and Engineering School of Biological and Marine Sciences 2017-08-18 Effects of ocean acidification on the shells of four Mediterranean gastropod species near a CO 2 seep Duquette, A http://hdl.handle.net/10026.1/10056 10.1016/j.marpolbul.2017.08.007 Marine Pollution Bulletin Elsevier All content in PEARL is protected by copyright law. Author manuscripts are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author. Marine Pollution Bulletin xxx (xxxx) xxx–xxx Contents lists available at ScienceDirect Marine Pollution Bulletin journal homepage: www.elsevier.com/locate/marpolbul Effects of ocean acidification on the shells of four Mediterranean gastropod species near a CO2 seep ⁎ Ashley Duquettea, James B. McClintocka, , Charles D. Amslera, Alberto Pérez-Huertab, Marco Milazzoc, Jason M. Hall-Spencerd a Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA b Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA c Dipartimento di Scienze della Terra e del Mare, University of Palermo, 90123 Palermo, Italy d Marine Biology and Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Plymouth, UK ARTICLE INFO ABSTRACT Keywords: Marine CO2 seeps allow the study of the long-term effects of elevated pCO2 (ocean acidification) on marine CO2 seep invertebrate biomineralization. We investigated the effects of ocean acidification on shell composition and Ocean acidification structure in four ecologically important species of Mediterranean gastropods (two limpets, a top-shell snail, and Gastropods a whelk).