Vertical Migration During the Life History of the Intertidal Gastropod Monodonta Labio on a Boulder Shore
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Intertidal Monitoring Report 2009/2010
Adelaide Desalination Plant Final Intertidal Monitoring Report 2009/2010 Baring, R.J., Stewart, T. D.C. & Benkendorff, K.* School of Biological Sciences, Flinders University * Author for correspondence email: [email protected] [This document contains the final report for the seasonal Adelaide Desalination Plant Intertidal Monitoring Program undertaken by Flinders University in 2009/2010.] Table of Contents Table of Contents .............................................................................................................................. 1 Executive Summary ........................................................................................................................... 2 Introduction ...................................................................................................................................... 3 Aims and Objectives .......................................................................................................................... 4 Methods ............................................................................................................................................ 5 Sampling locations and sites ............................................................................................................. 5 Invertebrate abundance.................................................................................................................... 9 Percent cover of sessile organisms ................................................................................................... -
Marine Snails of the Genus Phorcus: Biology and Ecology of Sentinel Species for Human Impacts on the Rocky Shores
DOI: 10.5772/intechopen.71614 Provisional chapter Chapter 7 Marine Snails of the Genus Phorcus: Biology and MarineEcology Snails of Sentinel of the Species Genus Phorcusfor Human: Biology Impacts and on the EcologyRocky Shores of Sentinel Species for Human Impacts on the Rocky Shores Ricardo Sousa, João Delgado, José A. González, Mafalda Freitas and Paulo Henriques Ricardo Sousa, João Delgado, José A. González, MafaldaAdditional information Freitas and is available Paulo at Henriques the end of the chapter Additional information is available at the end of the chapter http://dx.doi.org/10.5772/intechopen.71614 Abstract In this review article, the authors explore a broad spectrum of subjects associated to marine snails of the genus Phorcus Risso, 1826, namely, distribution, habitat, behaviour and life history traits, and the consequences of anthropological impacts, such as fisheries, pollution, and climate changes, on these species. This work focuses on discussing the ecological importance of these sentinel species and their interactions in the rocky shores as well as the anthropogenic impacts to which they are subjected. One of the main anthro- pogenic stresses that affect Phorcus species is fisheries. Topshell harvesting is recognized as occurring since prehistoric times and has evolved through time from a subsistence to commercial exploitation level. However, there is a gap of information concerning these species that hinders stock assessment and management required for sustainable exploi- tation. Additionally, these keystone species are useful tools in assessing coastal habitat quality, due to their eco-biological features. Contamination of these species with heavy metals carries serious risk for animal and human health due to their potential of biomag- nification in the food chain. -
Species at Risk on Department of Defense Installations
Species at Risk on Department of Defense Installations Revised Report and Documentation Prepared for: Department of Defense U.S. Fish and Wildlife Service Submitted by: January 2004 Species at Risk on Department of Defense Installations: Revised Report and Documentation CONTENTS 1.0 Executive Summary..........................................................................................iii 2.0 Introduction – Project Description................................................................. 1 3.0 Methods ................................................................................................................ 3 3.1 NatureServe Data................................................................................................ 3 3.2 DOD Installations............................................................................................... 5 3.3 Species at Risk .................................................................................................... 6 4.0 Results................................................................................................................... 8 4.1 Nationwide Assessment of Species at Risk on DOD Installations..................... 8 4.2 Assessment of Species at Risk by Military Service.......................................... 13 4.3 Assessment of Species at Risk on Installations ................................................ 15 5.0 Conclusion and Management Recommendations.................................... 22 6.0 Future Directions............................................................................................. -
From the Cape Verde Islands
© Sociedad Española de Malacología Iberus, 30 (2): 89-96, 2012 A new species of Phorcus (Vetigastropoda, Trochidae) from the Cape Verde Islands Una nueva especie de Phorcus (Vetigastropoda, Trochidae) del archi- piélago de Cabo Verde José TEMPLADO* and Emilio ROLÁN** Recibido el 13-III-2012. Aceptado el 24-V-2012 ABSTRACT A recent molecular study has shown that the well-known intertidal Cape Verde topshell, previ- ously identified as Osilinus punctulatus, O. tamsi or O. atratus, is a distinct undescribed species (DONALD,PRESTON,WILLIAMS,REID,WINNER,ALVAREZ,BUGE,HAWKINS,TEMPLADO &SPENCER, 2012). Therefore we describe it here as new for science and compare it to the closest species. RESUMEN Un estudio reciente basado en técnicas moleculares ha demostrado que la especie intermareal de las islas de Cabo Verde previamente identificada como Osilinus punctulatus, O. tamsi u O. atratus, es en realidad una especie diferente no descrita (DONALD,PRESTON,WILLIAMS, REID,WINNER,ALVAREZ,BUGE,HAWKINS,TEMPLADO &SPENCER, 2012). Por lo tanto, la des- cribimos aquí como nueva para la ciencia y la comparamos con las especies más próximas. INTRODUCTION The more important and common al- logically (HICKMAN &MCLEAN, 1990) gal grazers of intertidal rocky sea-shores and genetically (DONALD,KENNEDY AND of the northeastern Atlantic Ocean and SPENCER, 2005) distinct from Monodonta Mediterranean Sea are limpets (of the and, based on molecular evidence, Osili- genera Patella and Cymbula), winkles (of nus has recently been moved into the the genera Littorina, Melarhaphe and subfamily Cantharidinae, separate from Echinolittorina) and topshells (of the gen- the Monodontinae and Trochinae (WI- era Gibbula and Phorcus). -
Do Singapore's Seawalls Host Non-Native Marine Molluscs?
Aquatic Invasions (2018) Volume 13, Issue 3: 365–378 DOI: https://doi.org/10.3391/ai.2018.13.3.05 Open Access © 2018 The Author(s). Journal compilation © 2018 REABIC Research Article Do Singapore’s seawalls host non-native marine molluscs? Wen Ting Tan1, Lynette H.L. Loke1, Darren C.J. Yeo2, Siong Kiat Tan3 and Peter A. Todd1,* 1Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, Block S3, #02-05, Singapore 117543 2Freshwater & Invasion Biology Laboratory, Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, Block S3, #02-05, Singapore 117543 3Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377 *Corresponding author E-mail: [email protected] Received: 9 March 2018 / Accepted: 8 August 2018 / Published online: 17 September 2018 Handling editor: Cynthia McKenzie Abstract Marine urbanization and the construction of artificial coastal structures such as seawalls have been implicated in the spread of non-native marine species for a variety of reasons, the most common being that seawalls provide unoccupied niches for alien colonisation. If urbanisation is accompanied by a concomitant increase in shipping then this may also be a factor, i.e. increased propagule pressure of non-native species due to translocation beyond their native range via the hulls of ships and/or in ballast water. Singapore is potentially highly vulnerable to invasion by non-native marine species as its coastline comprises over 60% seawall and it is one of the world’s busiest ports. The aim of this study is to investigate the native, non-native, and cryptogenic molluscs found on Singapore’s seawalls. -
Turbo Sarmaticus Linnaeus 1758 CONTENTS
GROWTH, REPRODUCTION AND FEEDING BIOLOGY OF TURBO SARMA TICUS (MOLLUSCA: VETIGASTROPODA) ALONG THE COAST OF THE EASTERN CAPE PROVINCE OF SOUTH AFRICA THESIS Submitted in Fulfilment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY of RHODES UNIVERSITY by GREGORY GEORGE FOSTER November 1997 Turbo sarmaticus Linnaeus 1758 CONTENTS Acknowledgements Abstract ii CHAPTER 1 : General introduction 1 CHAPTER 2 : Population structure and standing stock of Turbo sarmaticus at four sites along the coast of the Eastern Cape Province Introduction 12 Materials and Methods 14 Results 20 Discussion 36 References 42 CHAPTER 3 : Growth rate of Turbo sarmaticus from a wave-cut platform Introduction 52 Materials and Methods 53 Results 59 Discussion 62 References 69 CHAPTER 4 : The annual reproductive cycle of Turbo sarmaticus Introduction 80 Materials and Methods 81 Results 84 Discussion 100 References 107 CHAPTER 5 : Consumption rates and digestibility of six intertidal macroalgae by Turbo sarmaticus Introduction 118 Materials and Methods 121 Results 126 Discussion 140 References 149 CHAPTER 6 : The influence of diet on the growth rate, reproductive fitness and other aspects of the biology of Turbo sarmaticus Introduction 163 Materials and Methods 165 Results 174 Discussion 189 References 195 CHAPTER 7 : Polysaccharolytic activity of the digestive enzymes of Turbo sarmaticus Introduction 207 Materials and Methods 210 Results 215 Discussion 219 References 227 CHAPTER 8 : General discussion 236 ACKNOWLEDGEMENTS I am extremely indebted to my supervisor and mentor, Prof. Alan Hodgson, with whom I am honoured to have had such a successful association. His continued confidence, guidance, integrity and friendship throughout this study were a source of reassurance and inspiration. -
GMB.CV-'07 Full General
CURRICULUM VITAE: GEORGE MEREDITH BRANCH 2.1. Biographic sketch: BORN : Salisbury, Zimbabwe, 25 September 1942. Married, two children. UNIVERSITY EDUCATION: University of Cape Town. B.Sc. 1963 Majors in Zoology and Botany, distinction in the former. Class medals for best student in second and third year Zoology. B.Sc. Hons. 1964. First class honours in Zoology PhD 1973. EMPLOYMENT: Zoology department, University of Cape Town Junior Lecturer, 1965-1966 Lecturer, 1967-1974 Ad hoc promotion to Senior Lecturer 1975 Ad hoc promotion to Associate Professor, 1979 Ad hom . promotion to Professorship 1985. Student adviser, Life Sciences, 1975-1987 Postgraduate Summer Course, Friday Harbor Marine Laboratories, 1985. Head of Department of Zoology, UCT, 1988-1990, 1994-1996 Chairman, School of Life Sciences, 1991 Chairman, Undergraduate Affairs, Zoology Department 1993 AWARDS: Purcell Prize for best postgraduate biological thesis - 1965. Fellowship of the University of Cape Town - 1983 Distinguished Teachers Award - 1984 UCT Book Award - 1986 - for "The Living Shores of Southern Africa". Fellowship of the Royal Society of South Africa - 1990. Appointed Director of FRD Coastal Ecology Unit -1991. Awarded Gold Medal by Zoological Society of Southern Africa - 1992. Awarded Gilchrist Gold Medal for contributions to marine science - 1994. UCT Book Award - 1995 - for "Two Oceans - a Field Guide to the Marine Life of southern Africa" (Jointly awarded to CL Griffiths, ML Branch, LE Beckley.) International Temperate Reefs Award for Lifetime Contributions to Marine Science – 2006. FRD RATING AND FUNDING: Rated in 1985 as qualifying for comprehensive support for funding from the Foundation for Research Development. Re-rated in 1990, 1994 and 1998 as category 'A' (scientists recognised as international leaders – approximately the top 4% of scientists in South Africa). -
MARINE GASTROPODS and BIVALVES of BIRI, NORTHERN SAMAR ABSTRACT a Descriptive Research Was Conducted in 2 Barangays of Biri
J.Bio.Innov 8(3), pp: 319-329, 2019 |ISSN 2277-8330 (Electronic) Flores et al., MARINE GASTROPODS AND BIVALVES OF BIRI, NORTHERN SAMAR Carla U. Norcio1 and Abel Alejandro U. Flores, Jr.1,2 1University Research and Development Services 1,2University Research and Development Services and Chair, Biological Sciences Department UEP College of Science ABSTRACT A descriptive research was conducted in 2 barangays of Biri, Northern Samar, to describe the species composition of mollusks in the island municipality. Specifically, it aimed to identify the gastropods and bivalves present in the coastal waters of Biri, Northern Samar; to quantify their density and frequency; determine the prevailing environmental conditions in the study area during the day time and night time; and, enumerate the gastropod and bivalve species that are of economic value to the fisherfolks in the sampling sites. In each site, three 100-meter transect lines were laid seaward, with ten 1-square meter quadrats established along each line. All gastropods and bivalves within the quadrats were counted; those outside were not counted, but were listed. Interview with residents for additional information and data was done using a researcher-made interview guide. Results show 26 mollusk species representing 10 genera, 14 families, 5 orders, and 2 classes. In Barangay San Pedro, densest among the species during night time and day time sampling was Cypraea testunidaria Linne, while in Barangay San Antonio, densest at night was Cypraea annulus Linne, whereas during day time, it was Turbo (Lunella) cinereus. The coastal waters of the sampling sites have optimum conditions which favour the existence of gastropods and bivalves, and although variations do occur, such fluctuations are insignificant to affect the frequency and density of these species. -
Thick Top Shell (Phorcus Lineatus)
MarLIN Marine Information Network Information on the species and habitats around the coasts and sea of the British Isles Thick top shell (Phorcus lineatus) MarLIN – Marine Life Information Network Marine Evidence–based Sensitivity Assessment (MarESA) Review Nova Mieszkowska 2008-04-17 A report from: The Marine Life Information Network, Marine Biological Association of the United Kingdom. Please note. This MarESA report is a dated version of the online review. Please refer to the website for the most up-to-date version [https://www.marlin.ac.uk/species/detail/1324]. All terms and the MarESA methodology are outlined on the website (https://www.marlin.ac.uk) This review can be cited as: Mieszkowska, N. 2008. Phorcus lineatus Thick top shell. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. DOI https://dx.doi.org/10.17031/marlinsp.1324.1 The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available here. Based on a work at www.marlin.ac.uk (page left blank) Date: 2008-04-17 Thick top shell (Phorcus lineatus) - Marine Life Information Network See online review for distribution map Phorcus lineatus on intertidal rock. -
Phylogeography of Selected Southern African Marine Gastropod Molluscs
EFFECT OF PLEISTOCENE CLIMATIC CHANGES ON THE EVOLUTIONARY HISTORY OF SOUTH AFRICAN INTERTIDAL GASTROPODS BY TINASHE MUTEVERI SUPERVISORS: PROF. CONRAD A. MATTHEE DR SOPHIE VON DER HEYDEN PROF. RAURI C.K. BOWIE Dissertation submitted for the Degree of Doctor of Philosophy in the Faculty of Science at the University of Stellenbosch March 2013 i Stellenbosch University http://scholar.sun.ac.za Declaration By submitting this thesis/dissertation electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Date: March 2013 Copyright © 2013 Stellenbosch University All rights resrved ii Stellenbosch University http://scholar.sun.ac.za ABSTRACT Historical vicariant processes due to glaciations, resulting from the large-scale environmental changes during the Pleistocene (0.012-2.6 million years ago, Mya), have had significant impacts on the geographic distribution of species, especially also in marine systems. The motivation for this study was to provide novel information that would enhance ongoing efforts to understand the patterns of biodiversity on the South African coast and to infer the abiotic processes that played a role in shaping the evolution of taxa confined to this region. The principal objective of this study was to explore the effect of Pleistocene climate changes on South Africa′s marine biodiversity using five intertidal gastropods (comprising four rocky shore species Turbo sarmaticus, Oxystele sinensis, Oxystele tigrina, Oxystele variegata, and one sandy shore species Bullia rhodostoma) as indicator species. -
Common Topshells: an Introduction to the Biology of Osilinus Lineatus with Notes on Other Species in the Genus
Field Studies, 10, (2001) 115 - 160 COMMON TOPSHELLS: AN INTRODUCTION TO THE BIOLOGY OF OSILINUS LINEATUS WITH NOTES ON OTHER SPECIES IN THE GENUS J. H. CROTHERS Egypt Cottage, Fair Cross, Washford, Watchet. Somerset TA23 0LY ABSTRACT This review concentrates on those features of common topshell biology that are amenable to field study – distribution, abundance, population structure, response to environmental stimuli etc. It was written to help students plan simple but interesting projects by providing the essential background information. As the title suggests, it is concerned primarily with the northern species but includes sufficient information on the others to stimulate interest during Mediterranean and Macaronesian holidays. INTRODUCTION Many students of Biology are required to carry out some form of individual project as an integral part of their course. Despite reminders that assessment is usually directed at the manner in which the work was planned and executed (and not on the scientific interest of the result), the more able candidates often insist on choosing an ‘interesting’ topic - in an ‘interesting place’. For many of us, that ‘interesting place’ means a rocky sea shore. In that habitat, marine snails offer the widest range of possibilities for projects. A ‘Good Project Species*’ must (a) be easy to find, (b) be easy to identify, (c) show striking differences in some measurable feature (e.g., abundance, size, age, shape) that can be related to a measurable environmental factor and (d) have an adequate background literature, sufficient to allow the student both to predict patterns and also to interpret any results derived from the investigation. Osilinus Philippi, 1847 is a genus of herbivorous gastropod molluscs (snails) of rocky sea shores in the North-East Atlantic. -
<I>Monodonta Labio</I>
BULLETIN OF MARINE SCIENCE, 68(1): 27–36, 2001 GROWTH OF THE INTERTIDAL SNAIL, MONODONTA LABIO (GASTROPODA, PROSOBRANCHIA) ON THE PACIFIC COAST OF CENTRAL JAPAN Akiko Iijima ABSTRACT Growth of the trochid snail Monodonta labio was investigated by individual marking on a Pacific coast rocky shore of Honshu, central Japan. Growth rates of small sized M. labio were greater during summer to fall than during winter. However, the growth of large sized M. labio did not fluctuate all year round. Estimated growth curves were gained from growth data of monthly recaptured M. labio. From the estimated growth curves it was showed that newly recruited M. labio (1.6 mm in shell height) grew 10.3 mm at 1 yr after recruitment, 16.7 mm after 2 yrs, 20.2 mm after 3 yrs, 22.6 mm after 4 yrs, 24.4 mm after 5 yrs and reached the maximum size at the study shore of 25.0 mm after 5 yrs 2 mo. Monodonta labio is a common trochid snail which inhabits rocky-boulder or boulder shores of Japan, Korea and the southern part of China. Growth of M. labio have been studied in Hakata (Sumikawa, 1955) and in Shima Peninsula (Nakano and Nagoshi, 1981, 1984) in Japan (Fig. 1) by using cohort analysis. Although cohort analysis is a convenient method to study about growth, overlap of different cohorts in frequency histograms make it difficult to monitor the growth of each cohort especially in the older age classes (Nakaoka, 1992). Furthermore, growth of each individual can not be followed by this method.