DOCSLIB.ORG

Silent Witnesses Freshwater Bivalves As Archives of Environmental Variability in the Rhine-Meuse Delta

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Silent Witnesses Freshwater Bivalves As Archives of Environmental Variability in the Rhine-Meuse Delta VRIJE UNIVERSITEIT Silent witnesses Freshwater bivalves as archives of environmental variability in the Rhine-Meuse delta ACADEMISCH PROEFSCHRIFT ter verkrijging van de graad Doctor aan de Vrije Universiteit Amsterdam, op gezag van de rector magnificus prof.dr. L.M. Bouter, in het openbaar te verdedigen ten overstaan van de promotiecommissie van de faculteit der Aard- en Levenswetenschappen op woensdag 2 december 2009 om 15.45 uur in de aula van de universiteit, De Boelelaan 1105 door Emma Adriana Agnes Versteegh geboren te ’s-Hertogenbosch promotor: prof.dr. D. Kroon copromotoren: dr. S.R. Troelstra dr. H.B. Vonhof leescommissie: prof.dr. F. Dehairs dr. F.J.C. Peeters prof.dr. B.R. Schöne dr. E. Stouthamer dr. G. van der Velde aanvullende leden promotiecommissie: prof.dr. G.J. Boekschoten dr. F.P. Wesselingh paranimfen: drs. A.V. Brader ir. J.C.A. Joordens This research was carried out at: VU University Amsterdam Faculty of Earth and Life Sciences Department of Marine Biogeology De Boelelaan 1085 1081 HV Amsterdam The Netherlands This research was carried out in the framework of the Dutch national climate research program “Climate changes Spatial Planning” (http://www.climate- changesspatialplanning.nl/; “Klimaat voor Ruimte” http://www.klimaatvoor- ruimte.nl/). ISBN/EAN: 978-90-9024639-0 Netherlands Research School of Sedimentary Geology (NSG) Publication N°: 20091202 Silent witnesses - Freshwater bivalves as archives of environmental variability in the Rhine-Meuse delta In Dutch: Stille getuigen - Zoetwaterbivalven als archief van omgevingsvariabiliteit in de Rijn-Maasdelta Author: Emma A. A. Versteegh Cover design: Juliëtte Verberk (http://www.metjuliette.nl/) Cover photos: shell sections: Saskia Kars; shells: Emma Versteegh; water: Juliëtte Verberk. Photos inside: p. 12: Taking water samples at Hagestein (photo by Sarah Tynan) p. 26: Collecting unionids at Zetten (photo by Ane Wiersma) p. 46: Preparing unionids for photography (photo by Ane Wiersma) p. 62: Collecting unionids at Zetten (photo by Ane Wiersma) p. 90: Measuring pH at Hagestein (photo by Ane Wiersma) p. 112: Measuring pH at Hagestein (photo by Renee Hoekzema) p. 132: Measuring an tagging unionids (photo by Ane Wiersma) p. 144: Fish ladder at Hagestein (photo by Renee Hoekzema) p. 164: Putting on waders at Hagestein (photo by Renee Hoekzema) p. 172: Taking water samples at Lith (photo by Renee Hoezema) Printed by: Ipskamp Drukkers, Enschede, The Netherlands. Bittervoorns leggen hun eitjes in een zoetwatermossel. Dat kan lukken of mislukken, maar in ieder geval is het een hele plechtigheid. Er is vrij wat voor nodig. Het wijfje dat de eieren legt natuurlijk in de eerste plaats. Dan de van niets wetende mossel, die een weinig openstaat, zodat het eigeleidertje in zijn ademspleet gebracht kan worden en tenslotte het mannetje, dat de eieren bevrucht als ze goed en wel in de mossel terecht zijn gekomen. Ieder doet dus zijn deel en doorgaans heel wat bewuster, dan bij andere voortplantin- gen wel het geval is. [...] Bruiloften onder het oog van de dood hebben iets verstolens. Zo was het ook met de bruiloft van het bittervoorntje Blaude en het mannetje Passy. Hij geleidde haar naar een lichte mossel, driftig en zijn felle kleuren sproei- end in het water. Er waren nog twee mannetjes, Roumy en Torquy, die deelnamen aan het ceremonieel. Want die vonden het een zalige liefheb- berij om de mossel te bedotten. Iedere keer als zij ertegenaan stieten en zo veel mogelijk water tegen de spleet spoten, sloot de mossel zich. Zo’n dier weet niet veel, maar wel wat open is en wat dicht. Iedere keer als men hem bestookte, sloot hij zich. Even later ging hij dan weer open en dan bleek het sluiten voor niets gedaan te zijn. Passy, Roumy en Torquy kwamen er dan opnieuw aan, hervatten tierig het aanstoten en spuwen en de mossel ging weer dicht. Dicht, dacht hij dan en hij bezat inderdaad het gelukkig vermogen om die gedachte waar te maken. Als hij dan toch weer open moest en bemerkte dat er in die tussentijd volstrekt niets met hem was gebeurd, aarzelde hij wel even met dichtgaan als de drie mannetjes hun charge herhaalden, maar hij deed het toch maar, al kwam er ergens in zijn vage reageren wel iets opzetten van een indruk dat hij al die moeite voor niets deed. Later ging hij weer open. Bij een herhaling van de aanval sloot hij zich nu wel heel wat langzamer, wel wetende dat hij slachtoffer was van de eenzijdigheid van zijn mogelijkheden en zijn onbetekenende schrikachtigheid. En dus niet zonder gemelijkheid. Toen hij daarna op- nieuw open was gaan staan en er bleek niets gebeurd te zijn, blééf hij open, want hij was nu gewend aan de zachte stootjes van de voornneuzen en hun onbeduidende spuwstroompjes, ook al verdubbelden de drie voorns hun pogingen en botsten Passy, Torquy en Roumy tegen de mossel, op wat zij aannamen dan de kitteligste plekjes waren. Jawel! dacht de mossel dan. Meer niet. Maar dan toch in ieder geval heel duidelijk. Jawel! en hij bleef open. Dat was het ogenblik voor Blaude om haar eitjes te leggen. A. Koolhaas, Het grote stikken. Uit: Dekkers, M. Midas Dekkers leest A. Koolhaas. Uitgeverij Maarten Muntinga bv, Amsterdam. 2005. Oorspronkelijk uit: Koolhaas, A. Gekke Witte. Uitgeve- rij G. A. van Oorschot, Amsterdam 1959. Contents Dankwoord / Acknowledgements 9 Samenvatting 13 About the author 25 Chapter 1 27 Introduction Chapter 2 47 A new cage design for monitoring semi- infaunal freshwater mussels (Unionidae) Chapter 3 63 Intraseasonal growth rate variation in unionid freshwater mussels as determined by oxygen and carbon isotope shell chemistry Chapter 4 91 Oxygen isotope composition of bivalve seasonal growth increments and ambient water in the rivers Rhine and Meuse Chapter 5 113 Is 20th century summer discharge in the river Meuse recorded in the shell chemistry of freshwater mussels (Unionidae)? Chapter 6 133 Can unionid stable carbon isotope records serve as an environmental proxy? Chapter 7 145 Freshwater bivalves record NAO-related river water δ18O variability during the Medieval Warm Period Chapter 8 165 Synthesis References 173 Appendices 187 Dankwoord / Acknowledgements In het voorjaar van 2005 was ik docent biologie op een middelbare school. Ik deed dat werk met veel plezier, maar wist al sinds de afstudeerfase van mijn studie dat ik eigenlijk verder wilde in de wetenschap. Ik vroeg mijn afstudeerbegeleider Martijn Dorenbosch referent te zijn op een sollicitatie, waarop hij zei: “Gerard komt hier net binnenlopen, en die weet nog iets.” Na een telefoontje met Gerard van der Velde en vervolgens met Simon Troelstra, zat ik al snel bij Simon voor een oriënterend gesprek. Hoewel ik eerst mijn bedenkingen had bij het onderwerp, werkte zijn enthousiasme al snel aanstekelijk. Mijn sollicitatie was succesvol en op 1 september begon ik met het project “Geochemistry of freshwater mussels as a proxy for pal- aeo-floods”, gefinancierd door BSIK - Klimaat voor Ruimte. Vier jaar later resulteerde dat in dit proefschrift. Zonder de hulp en ondersteuning van velen zou het niet zo ver gekomen zijn en diegenen wil ik hier bedanken. Allereerst mijn promotor Dick Kroon en copromotores Simon Troelstra en Hubert Vonhof. Voor zowel een pittige wetenschappelijke discussie als een woord van ondersteuning kon ik bij jullie terecht. Ik heb mij vaak gelukkig geprezen met jullie als begeleiders, dankjulliewel! I would like to thank the reading committee Frank Dehairs, Frank Peeters, Bernd Schöne, Esther Stouthamer and Gerard van der Velde, for their ef- fort in judging this thesis. Verder bedank ik Bert Boekschoten en Frank Wesselingh dat zij deel wilden uitmaken van de oppositie tijdens de ver- dediging van dit proefschrift. I also thank David Gillikin, Christopher Ro- manek, Bernd Schöne, Alan Wanamaker and several anonymous review- ers for their comments on earlier versions of the papers, which form the chapters of this thesis. Dankjewel Juliëtte Verberk, voor het ontwerpen van de prachtige omslag van dit proefschrift. Ik dank masterstudent Annemieke Hurks voor haar inzet in dit project. Voor het ontwerpen en bouwen van de kooien en de vele hulp met veld- werkbenodigdheden bedank ik Michel Groen, Niek van Harlingen en de rest van het team van de werkplaats. Verder dank ik Jasper Berben, Aafke Brader, Ron Kaandorp en Ane Wiersma die hielpen bij het opzetten van veldwerkstations, en Simon Jung, Wim Lustenhouwer, Suzan Verdegaal en John Visser voor hun hulp in het lab. Bedankt ook Wynanda Koot en Bouk Laçet voor het maken van dunne doorsneden van de schelpen en Saskia Kars voor de prachtige foto’s die ze daarvan heeft gemaakt. Veel dank ben ik verschuldigd aan mijn vader Piet Versteegh, die gedurende anderhalf jaar iedere twee weken met mij mee is gegaan om watermonsters 9 te nemen en metingen te doen, en mijn moeder, Marie-Louise Friedrichs, die mij daarbij vele malen vervangen heeft als ik op een conferentie of vakantie was. Dank aan Rijkswaterstaat, en vooral Gerard Wittenberg, dat ik mijn kooi- en in de vistrappen mocht zetten. Bedankt ook Wim Kuijper (Universi- teit Leiden), Rob Molenbeek (Universiteit van Amsterdam), Anthonie van Peursen, Jelle Reumer (Natuurhistorisch Museum Rotterdam), Frank Wesselingh (Naturalis) en de Rijksdienst voor het Cultureel Erfgoed, voor jullie vrijgevigheid wat betreft de schelpen. Thank you Gerhard Bauer and Rüdiger Bless for being so generous to send me some of your shells. Be- dankt, Wim Mook voor het achterhalen van een dataset die cruciaal is gebleken voor dit proefschrift. Thanks to the Australian colleagues, Patrick De Deckker, Steve Eggins, Les Kinsley, Malcolm McCulloch and Sarah Tynan, for the warm welcome and good cooperation at the Australian National University in Canberra. Thank you Jens Zinke, Craig Grove and Miriam Pfeiffer for letting me join you on your coral drilling fieldwork to Zanzibar. This was not only a useful experience, but it was also very special to be back in Zanzibar after 5 years.
Load more

Recommended publications
  • 2283-IJBCS-Article-David Akele Giraud
    Available online at http://ajol.info/index.php/ijbcs Int. J. Biol. Chem. Sci. 9(1): 246-258, February 2015 ISSN 1997-342X (Online), ISSN 1991-8631 (Print) Original Paper http://indexmedicus.afro.who.int Traditional exploitation of edible freshwater oyster Etheria elliptica (Lamarck, 1807) in Pendjari River (Benin-West Africa): assessment of income, human pressure and options for management Giraud David AKELE 1* , Simon AHOUANSOU MONTCHO 1, Antoine CHIKOU 1, Guy Apollinaire MENSAH 2 and Philippe Adédjobi LALEYE 1 1 Laboratoire d’Hydrobiologie et d’Aquaculture, Faculté des Sciences Agronomiques, Université d’Abomey-Calavi, 01 BP 526 Cotonou, Bénin. 2 Institut National des Recherches Agricoles du Bénin (INRAB), CRA-Agonkanmey ; 01 BP. 884 Cotonou, Bénin. *Corresponding author, E-mail:[email protected] ABSTRACT Freshwater oyster Etheria elliptica (Mollusca: Bivalvia) was harvested in Pendjari River as important source of protein and income. The river crosses the Pendjari Biosphere Reserve, a protected area in Northern Benin. The freshwater oyster is harvested outside and within the protected area with increasing human pressure. The current study aims at assessing fishery production, human impact on wild stocks and suggests sustainable management options. Individual semi-structured interviews and monitoring of oyster collection were used to collect data on harvesters’ socio-economic characteristics, biomass production and seasonal income in 2008 and 2009. Mean shell size and weight as well as size frequency distribution were analyzed in relation to harvesting pressure. Oyster harvesting is the main traditional activity of Berba women in dry season, at low water level period. The oyster collectors used artisanal tools such as chisel-like metal, stone-hammer, rope, metal pan and pot.
    [Show full text]
  • Training of Trainers Module on the Monitoring of Freshwater Molluscs
    [Tapez un texte] [Tapez INTEGRATION OF FRESHWATER BIODIVERSITY INTO AFRICA’S DEVELOPMENT PROCESS: MOBILIZATION OF INFORMATION AND DEMONSTRATION SITES Demonstration Project in the Gambia River Basin Training of Trainers Module on the Monitoring of Freshwater Molluscs Dr. Ndiaga THIAM & Anis DIALLO September 2010 INTEGRATION OF FRESHWATER BIODIVERSITY INTO AFRICA’S DEVELOPMENT PROCESS: MOBILIZATION OF INFORMATION AND DEMONSTRATION SITES Demonstration Project in the Gambia River Basin Training of Trainers Module on the Monitoring of Freshwater Molluscs Wetlands International Afrique Rue 111, Zone B, Villa No 39B BP 25581 DAKAR-FANN TEL. : (+221) 33 869 16 81 FAX : (221) 33 825 12 92 EMAIL : [email protected] September 2010 Freshwater Molluscs Page 2 Contents Introduction ................................................................................................................................ 4 Goals and Objectives of the module ....................................................................................... 5 Module Contents ..................................................................................................................... 5 Training needs ........................................................................................................................ 6 Course procedures ................................................................................................................... 6 Expected Results ....................................................................................................................
    [Show full text]
  • Habitat Preference, Environmental Tolerance and Population Viability of Westralunio Carteri Iredale 1934, a Threatened Freshwater Mussel Of
    Habitat preference, environmental tolerance and population viability of Westralunio carteri Iredale 1934, a threatened freshwater mussel of south-western Australia Le Ma This thesis is presented for the Doctor of Philosophy 2018 Murdoch University, Perth, Western Australia DECLARATION I declare that this thesis is my own original account of my research and contains as its main content, work which has not previously been submitted for a degree at any tertiary education institution and as author, I reserve the right of copyright under the Copyright Act 1968, Commonwealth of Australia. …………………………………………………………… Le Ma i ACKNOWLEDGEMENTS There are many people who gave me generous help and good wishes for my PhD study. I am extremely grateful for all their help and will remember them for the rest of my life. First of all, I would like to express my deepest appreciation to my supervisors, Alan Lymbery, David Morgan and Stephen Beatty for their patient supervision towards the completion of this PhD project. I could not have completed this thesis without their guidance. Special thanks to Michael Klunzinger for his fundamental research on Westralunio carteri before my study and useful advice about the research direction of this study. His hard work and project opened the door to the world of Australian freshwater bivalves for me. I also wish to thank Jennifer Lymbery, Rowan Lymbery and Samuel Lymbery for their kindhearted support. All their work and inspirations will continue to encourage me until my last day. I would like to thank the following organisations who provided important funding for this study: Murdoch University Student Research Grant; Holsworth Wildlife Research Endowment and Australian Wildlife Society Student Research Grant.
    [Show full text]
  • Etheria Elliptica) in Some Water Bodies in Ondo State Nigeria
    OPEN ACCESS International Journal of Aquatic Science ISSN: 2008-8019 Vol. 10, No. 1, 11-18, 2019 Habitat studies of freshwater mussel (Etheria elliptica) in some water bodies in Ondo State Nigeria Olamide Olaronke Olawusi-Peters Federal University of Technology, Akure, Ondo State, Nigeria. Received: January-12-2018 Accepted: April-19-2018 Published: January-01-2019 Abstract: The report of the decline in the population of Etheria elliptica necessitate the habitat study of the mussel in river Ogbese and Owena reservoir, Ondo state, Nigeria in order to know the status of the organism within the ecosystem. Thirty (30) specimens each from the water bodies were sampled between May to August 2012. The meristic variables and the condition factor of mussels showed that the samples from Owena reservoir (K = 16.33) were heavier than River Ogbese (K = 8.34). The water quality parameter buttress a better mussel in Owena reservoir, this is as a result of controlled human activities experienced by the reservoir. Nevertheless, the water quality parameters obtained from both water bodies were within the requirements of the mussel. Positive allometric growth pattern was observed in Etheria elliptica from both water bodies (Ogbese b = 3.02; Owena b = 3.01). The flow rate of both water bodies differ slightly, with river Ogbese having the highest flow rate. The study revealed that Etheria elliptica in both study areas were in good and healthy conditions despite the various human activities on the water bodies. Keywords: Condition factor, Human disturbance, Owena Reservoir, River Ogbese, Etheria elliptica Introduction Etheria elliptica has a widespread distribution to be extinct since it has not been recorded live since throughout Africa and Madagascar with no major the early 20th century (Van Damme, 2011).
    [Show full text]
  • Growth of Freshwater Etheria Elliptica Oyster (Lamarck, 1807) Reared in Cages in the Pendjari River (Benin, West Africa)
    Aquat. Living Resour. 2017, 30, 17 Aquatic © EDP Sciences 2017 DOI: 10.1051/alr/2017014 Living Resources Available online at: www.alr-journal.org RESEARCH ARTICLE Growth of freshwater Etheria elliptica oyster (Lamarck, 1807) reared in cages in the Pendjari River (Benin, West Africa) Giraud David Akélé1,2,*, Simon Ahouansou Montcho1,2 and Philippe Adédjobi Lalèyè1 1 Laboratoire d’Hydrobiologie et d’Aquaculture, Faculté des Sciences Agronomiques, Université d’Abomey-Calavi, 01 BP 526 Cotonou, Benin 2 Ecole d’Aquaculture de la Vallée, Université Nationale d’Agriculture, BP 43 Kétou, Benin Received 3 December 2015 / Received in final form 23 March 2017 / Accepted 23 March 2017 Abstract – In this paper, we assess the growth performance, survival rate and abiotic factors affecting Etheria elliptica (Mollusca: Bivalvia: Etheriidae), the African freshwater oyster, a species that is widespread in tropical Africa where it is widely harvested for food and as a commodity. We collected wild oysters from the Pendjari River (Benin) and grouped them into small (23.4 ± 5.2 mm) and large (55.8 ± 7.7 mm) size classes. They were reared in cages in the Pendjari River from January to December 2009. Shell height was measured on a monthly basis, and estimated growth parameters were assessed using the von Bertalanffy growth function. Overall, the growth parameter estimates for pooled size classes were K = 0.0718 monthÀ1 and L∞ = 82.2 mm. We estimated the time to reach minimum commercial size T65mm (female sexual maturity size) to be 22 months (1.8 years). Small oysters exhibited a peak in growth rate (2.775 mm monthÀ1) in May, whereas large-sized oysters grew fastest (1.707–2.781 mm monthÀ1) in August–September during the rainy/ flood season.
    [Show full text]
  • Etheriidae (Bivalvia: Unionoida) Among the Genera in the Freshwater
    Downloaded from http://sp.lyellcollection.org/ at CAPES on July 12, 2013 Geological Society, London, Special Publications On becoming cemented: evolutionary relationships among the genera in the freshwater bivalve family Etheriidae (Bivalvia: Unionoida) Arthur E. Bogan and Walter R. Hoeh Geological Society, London, Special Publications 2000, v.177; p159-168. doi: 10.1144/GSL.SP.2000.177.01.09 Email alerting click here to receive free e-mail alerts when service new articles cite this article Permission click here to seek permission to re-use all or request part of this article Subscribe click here to subscribe to Geological Society, London, Special Publications or the Lyell Collection Notes © The Geological Society of London 2013 Downloaded from http://sp.lyellcollection.org/ at CAPES on July 12, 2013 On becoming cemented: evolutionary relationships among the genera in the freshwater bivalve family Etheriidae (Bivalvia: Unionoida) ARTHUR E. BOGAN 1 & WALTER R. HOEH 2 INorth Carolina State Museum of Natural Sciences, Research Laboratory, 4301 Reedy Creek Road, Raleigh, NC 27607, USA (e-mail: arthur.bogan @ncmail, net) 2Department of Biological Sciences, Kent State University, Kent, 0H44242, USA Abstract: A robust phylogeny for the Unionoida is emerging and presumed relationships of some major clades are being questioned. The Etheriidae or freshwater oysters has been a distinct family for over 160 years and currently contains three cemented genera: Acostaea (Columbia, South America), Pseudomulleria (India) and Etheria (Africa and Madagascar). Starobogatov (1970, Nauka, 1-372), Mansur and da Silva (1990, Amazoniana, 11(2), 147-166) and Bonetto (1997, Bioci~ncias, 5, 113-142) present conflicting testable hypotheses regarding the evolution of these taxa.
    [Show full text]
  • Distribution and Utilization of Freshwater Oyster, Etheria Sp. (Bivalvia, Unioniforme, Etheriidae) in the Major Rivers of Northern Volta Basin of Ghana
    Ghana Journal of Science, Technology and Development Volume 1, Issue 1. July 2014 journal homepage: http://gjstd.org/index.php/GJSTD Distribution and Utilization of Freshwater Oyster, Etheria Sp. (Bivalvia, Unioniforme, Etheriidae) in the Major Rivers of Northern Volta Basin of Ghana Akwasi AMPOFO-YEBOAH Department of Fisheries & Aquatic Resources Management, University for Development Studies, Tamale, Ghana Correspondence email: [email protected] Abstract A survey was conducted to gather information on indigenous knowledge on the freshwater oyster (Etheria sp. Lam.1807), its distribution and utilization along the major rivers (i.e. Oti, the White Volta and Black Volta) forming the northern Volta Basin of Ghana. The occurrence of the oyster in the major rivers entering the Volta Lake indicates a widespread distribution of this mollusc in Ghana. The river Oti in the north-east serving as an international boundary between Ghana and Togo, the Black Volta on the north-west also serving as international boundary between Ghana and La Cotê d'Ivoire, and the White Volta running through the central portion, all harbour populations of the freshwater oyster. Etheria sp. has been a staple food for the inhabitants along the rivers where the oyster occur for many years. The oysters are collected from the riverbed mainly during the dry season, when the water level is low using locally manufactured implements like hoes, chisels and hammer. Biochemical analysis of the smoked meat from Nawuni, on White Volta, showed that it contained 40.7% protein, 27.4% carbohydrate, 8.6% fat, 3659 mg/100 g calcium and 2210 mg/100g phosphorus. Proximate biochemical composition on dry matter of the species compared favourably with other edible bivalves in West Africa.
    [Show full text]
  • Some New Observations on the Freshwater Oyster Acostaea Rivolii (Deshayes, 1827) (Bivalvia: Etheriidae)
    Sociedad Malacológica de Chile (SMACH) Amici Molluscarum 25(1-2): 45-49 (2017) Some new observations on the freshwater oyster Acostaea rivolii (Deshayes, 1827) (Bivalvia: Etheriidae) Nuevas observaciones sobre la ostra de agua dulce Acostaea rivolii (Deshayes, 1827) (Bivalvia: Etheriidae) Jürgen Guerrero-Kommritz* & Felipe Escobar-Calderón Fundación Fundabas, Cra 4 # 16-75, Apto 1201, Bogotá, Colombia. *Autor corresponsal, e-mail: [email protected] North South America has a great abundance of discussed today and some studies place it near freshwater resources composed by some of the other families instead, doubting the existence of the greatest river systems in the world, such as Etheriidae family (Bogan & Hoeh, 2000; Bonetto, Amazonas, Orinoco and Magdalena. These rivers 1997). This has major implications in the systems support a very large diversity of biogeography of these three species and in the freshwater bivalves (82 species) (Pereira et al., origin of cementation in freshwater bivalves, rather 2014). One of these river systems is the Magdalena having a Gondwanan common ancestor (Yonge, river system the most important river in Colombia 1977) or being the product of convergent evolution which drains the northern end of the Andes to the (Prashad, 1931). Caribbean Sea. The Magdalena system it’s known The aim of this work it’s to show some new for its diverse aquatic fauna that includes many observations regarding the morphology, ecology endemic species. Unfortunately, for some groups and distribution of the species based on the there still exist a great gap of knowledge, this is literature available and data obtained from especially true for the freshwater bivalves, fieldwork.
    [Show full text]
  • Lacustrine Mollusc Radiations in the Lake Malawi Basin
    EGU Journal Logos (RGB) Open Access Open Access Open Access Advances in Annales Nonlinear Processes Geosciences Geophysicae in Geophysics Open Access Open Access Natural Hazards Natural Hazards and Earth System and Earth System Sciences Sciences Discussions Open Access Open Access Atmospheric Atmospheric Chemistry Chemistry and Physics and Physics Discussions Open Access Open Access Atmospheric Atmospheric Measurement Measurement Techniques Techniques Discussions Open Access Biogeosciences, 10, 5767–5778, 2013 Open Access www.biogeosciences.net/10/5767/2013/ Biogeosciences doi:10.5194/bg-10-5767-2013 Biogeosciences Discussions © Author(s) 2013. CC Attribution 3.0 License. Open Access Open Access Climate Climate of the Past of the Past Discussions Lacustrine mollusc radiations in the Lake Malawi Basin: Open Access Open Access experiments in a natural laboratory for evolutionEarth System Earth System Dynamics Dynamics D. Van Damme and A. Gautier Discussions Paleontological Research Unit, Ghent University, Krijgslaan 281, 9000, Gent, Belgium Open Access Correspondence to: D. Van Damme ([email protected]) Geoscientific Geoscientific Open Access Instrumentation Instrumentation Received: 17 July 2012 – Published in Biogeosciences Discuss.: 18 December 2012 Revised: 25 July 2013 – Accepted: 25 July 2013 – Published: 3 September 2013 Methods and Methods and Data Systems Data Systems Discussions Open Access Abstract. In terminal Pliocene–early Pleistocene times, part other past and present rift lakes, molluscan in-lakeOpen Access diver- Geoscientific of the Malawi Basin was occupied by paleo-lake Chiwondo. gence is surprisingly modestGeoscientific and young geologically speak- Molluscan biostratigraphy situates this freshwater lake either ing. This view is partly applicable even to the unique mala- Model Development in the East African wet phase between 2.7–2.4 Ma or that of cofauna of LakeModel Tanganyika.
    [Show full text]
  • Molluscs from the Stone and Mud-Brick Tombs in Abusir (Egypt) and the Provenance of So-Called “Nile-Mud”
    Volume IV ● Issue 1/2013 ● Online First INTERDISCIPLINARIA ARCHAEOLOGICA NATURAL SCIENCES IN ARCHAEOLOGY homepage: http://www.iansa.eu IV/1/2013 Molluscs from the Stone and Mud-brick Tombs in Abusir (Egypt) and the Provenance of so-called “Nile-mud” Martin Odlera*, Veronika Dulíkováa, Lucie Juřičkováb aCzech Institute of Egyptology, Faculty of Arts, Charles University in Prague, Celetná 20, 110 00 Prague 1, Czech Republic bDepartment of Zoology, Faculty of Science, Charles University in Prague, Viničná 7, 128 44 Prague 2, Czech Republic ARTICLE INFO ABSTRACT Article history: More than 200 archaeological features were looted in Abusir during the Egyptian Lotus revolution in Received: 27. February 2013 January 2011. The survey of the looted features brought to light among other material mollusc shells Accepted: 24. June 2013 from mud-brick, mud plaster and layers covering and filling tombs and shafts. Sixteen features could be dated to the Old Kingdom (5th–6th dynasty, ca. 2435–2118 BC); there are two possible features Keywords: from the 3rd dynasty or early 4th dynasty (ca. 2543–2436 BC) and one feature datable to the Late Abusir Period (664–404 BC). Four species of gastropods and five species of bivalves were identified. A Old Kingdom number of the species are now either extinct or have a limited range in the Nile with these including: Late Period Unio elongatulus, Coelatura aegyptiaca, Anodonta cygnaea, and in all probability Etheria elliptica. Molluscs The most frequent freshwater species in the corpus, from slow flowing or stagnant waters, could be Environment evidence for the environment from which the mud for mud-brick and mud plaster was extracted.
    [Show full text]
  • Literature Review for the Participatory Regional Assessment of the Shellfisheries in 11 Countries from Senegal to Nigeria
    WOMEN SHELLFISHERS AND FOOD SECURITY PROJECT Literature Review for Activity 1: Participatory Regional Assessment of the Shellfisheries in 11 Countries from Senegal to Nigeria December 2020 This publication is available electronically in the following locations: The Coastal Resources Center https://www.crc.uri.edu/projects_page/the-usaid-women-shellfishers-and-food-security- project/ USAID Development Clearing House https://dec.usaid.gov/dec/content/search.aspx For more information on the Women Shellfishers and Food Security Project, contact: USAID Women Shellfishers and Food Security Coastal Resources Center Graduate School of Oceanography University of Rhode Island 220 South Ferry Rd. Narragansett, RI 02882 USA Tel: 401-874-6224 Fax: 401-874-6920 Email: [email protected] Citation: Chuku, E. O., Abrokwah, S., Adotey, J., Effah, E., Okyere, I., Aheto D. W., Duguma, L., Oaks, B., Adu-Afarwuah, S. (2020). Literature Review for the Participatory Regional Assessment of the Shellfisheries in 11 Countries from Senegal to Nigeria. USAID Women Shellfishers and Food Security Project. Coastal Resources Center, Graduate School of Oceanography, University of Rhode Island. Narragansett, RI, USA. WSFS2020_05_CRC. 102 pp. Authority/Disclaimer: Prepared for USAID under the BAA-AFR-SD-2020 Addendum 01, (FAA No. 7200AA20FA00031) awarded on August 12, 2020 to the University of Rhode Island and entitled “Women Shellfishers and Food Security.” This document is made possible by the support of the American People through the United States Agency for International Development (USAID). The views expressed and opinions contained in this report are those of the Project team and are not intended as statements of policy of either USAID or the cooperating organizations.
    [Show full text]
  • The Fishery of the Freshwater Oyster Etheria Elliptica (Etheriidae) in Northern Ghana: Its Distribution and Economic Importance
    Journal of Agriculture and Sustainability ISSN 2201-4357 Volume 5, Number 2, 2014, 211-220 The Fishery of the Freshwater Oyster Etheria Elliptica (Etheriidae) in Northern Ghana: Its Distribution and Economic Importance Akwasi Ampofo-Yeboah1 and Mark Owusu-Frimpong2 1Department of Fisheries & Aquatic Resources Management, Nyankpala-Campus, University for Development Studies, Tamale, Ghana 2Department of Applied Biology, Navrongo-Campus, University for Development Studies, Tamale, Ghana Corresponding Author: Akwasi Ampofo-Yeboah, Department of Fisheries & Aquatic Resources Management, Nyankpala-Campus, University for Development Studies, Tamale, Ghana Abstract. A survey was conducted for seventeen months in 1998 and 2008 to record indigenous knowledge on the freshwater oyster Etheria elliptica in the north of Ghana, with emphasis on its distribution and economic importance. The study showed natural occurrence of the oyster in the major rivers and their tributaries that form the northern Volta Basin: River Oti in the north-east serving as the international boundary between Ghana and Togo, the Black Volta River in the north-west serving as the international boundary between Ghana and La Cotê d'Ivoire, and the White Volta River running through the central portion. Apparently, the oyster is fairly widespread in the north. Biochemical analysis of fresh meat samples showed nutritional values that suggest that the White Volta and Oti stocks are the same. The oysters are sessile organisms and are usually collected from the riverbeds mostly by women and during low water levels in the dry season, using locally manufactured implements like hoes, chisels and hammer to dislodge them from the hard substrates to which they are attached.
    [Show full text]