Download Article (PDF)
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
A New Species of Iravadia Ss (Mollusca, Gastropoda, Iravadiidae)
A new species of Iravadia s.s. (Mollusca, Gastropoda, Iravadiidae) from the late Oligocene of the Aquitaine Basin (southern France). The earliest record of brackish-water Iravadiidae? Pierre LOZOUET Muséum national d’Histoire naturelle, Département Systématique et Évolution, 55 rue Buffon, F-75231 Paris cedex 05 (France) [email protected] Lozouet P. 2003. — A new species of Iravadia s.s. (Mollusca, Gastropoda, Iravadiidae) from the late Oligocene of the Aquitaine Basin (southern France). The earliest record of brackish- water Iravadiidae? Geodiversitas 25 (2) : 237-242. KEY WORDS ABSTRACT Mollusca, Gastropoda, A new species of the Indo-West Pacific gastropod Iravadia s.s. is described Rissooidea, from the late Oligocene (Chattian) of southwestern France, the earliest record Iravadia s.s., Oligocene, of the genus. Iravadia dolini n. sp. is close to the recent species I. angulata Cenozoic, (Laseron, 1956) but has a shorter spire and smaller ovate aperture not angled. brackish-water, This discovery suggests that the adaptation of Iravadia Blanford, 1867 to mangrove, southern France, brackish waters (mangroves subenvironment?) probably occurred earlier than new species. previously suspected. RÉSUMÉ Une nouvelle espèce d’ Iravadia s.s. (Mollusca, Gastropoda, Iravadiidae) de l’Oligocène supérieur du bassin d’Aquitaine (Sud de la France). La première MOTS CLÉS occurrence d’Iravadiidae d’eaux saumâtres ? Mollusca, Gastropoda, Une nouvelle espèce du genre Indo-Ouest Pacique Iravadia s.s., la plus Rissooidea, ancienne occurrence du genre, est décrite de l’Oligocène supérieur (Chattien) Iravadia s.s., Oligocène, du Sud-Ouest de France. Iravadia dolini n. sp. est proche de l’espèce actuelle Cénozoïque, I. angulata (Laseron, 1956) mais s’en distingue par une spire plus courte et eaux saumâtres, une ouverture ovale, plus petite et non anguleuse. -
Gastropods Diversity in Thondaimanaru Lagoon (Class: Gastropoda), Northern Province, Sri Lanka
Journal of Geoscience and Environment Protection, 2021, 9, 21-30 https://www.scirp.org/journal/gep ISSN Online: 2327-4344 ISSN Print: 2327-4336 Gastropods Diversity in Thondaimanaru Lagoon (Class: Gastropoda), Northern Province, Sri Lanka Amarasinghe Arachchige Tiruni Nilundika Amarasinghe, Thampoe Eswaramohan, Raji Gnaneswaran Department of Zoology, Faculty of Science, University of Jaffna, Jaffna, Sri Lanka How to cite this paper: Amarasinghe, A. Abstract A. T. N., Eswaramohan, T., & Gnaneswa- ran, R. (2021). Gastropods Diversity in Thondaimanaru lagoon (TL) is one of the three lagoons in the Jaffna Penin- Thondaimanaru Lagoon (Class: Gastropo- sula, Sri Lanka. TL (N-9.819584, E-80.134086), which is 74.5 Km2. Fringing da), Northern Province, Sri Lanka. Journal these lagoons are mangroves, large tidal flats and salt marshes. The present of Geoscience and Environment Protection, 9, 21-30. study is carried out to assess the diversity of gastropods in the northern part https://doi.org/10.4236/gep.2021.93002 of the TL. The sampling of gastropods was performed by using quadrat me- thod from July 2015 to June 2016. Different sites were selected and rainfall Received: January 25, 2020 data, water temperature, salinity of the water and GPS values were collected. Accepted: March 9, 2021 Published: March 12, 2021 Collected gastropod shells were classified using standard taxonomic keys and their morphological as well as morphometrical characteristics were analyzed. Copyright © 2021 by author(s) and A total of 23 individual gastropods were identified from the lagoon which Scientific Research Publishing Inc. belongs to 21 genera of 15 families among them 11 gastropods were identified This work is licensed under the Creative Commons Attribution International up to species level. -
Based on Food Sources in Mangrove Ecosystem
Plant Archives Vol. 19 No. 1, 2019 pp. 913-916 e-ISSN:2581-6063 (online), ISSN:0972-5210 FOOD PREFERENCE ON TELESCOPIUM TELESCOPIUM (MOLLUSCA : GASTROPODA) BASED ON FOOD SOURCES IN MANGROVE ECOSYSTEM Dafit Ariyanto Department of Aquaculture, Agricultural Faculty, Asahan University, Kisaran, North Sumatera, 21224 Indonesia. Abstract Bacteria has a important role on mechanism nutrition and energy on ecosystem. The research was conducted September 2016 – July 2017. This purpose research was to determine a various food type on gastropods in mangrove ecosystem. The relationship between gastropod and mangrove productivity using Correspondence Analysis (CA). the sediment was taken with depth ± 10 cm and leaf litter was taken a litter trap 1 m x 1 m. The result showed that based on a chain food cycle that happened in mangrove ecosystem and tropic level. Gastropod T. telescopium choosed a food on mangrove sediment. T. telescopium has a similiar in bacteria Staphylococcus aureus. Key words : Bacteria, leaf litter, mollusca, soil sediment. Introduction Bacteria can be found on marine organisms. Banggi coast is located on the North Coast of Java, Gastropods have the highest abundance in the mangrove Central Java, Indonesia. The Banggi coast in Rembang, ecosystem. Gastropods perform symbiosis at various Central Java is fringed by various species of mangrove tropical levels to adapt with environmental conditions. such as Rhizophora mucronata Lam., Rhizophora Gastropods demonstrate a variety of feeding and apiculata Blume, Rhizophora stylosa Griff and morphological strategies and are found in areas that utilize Sonneratia alba Sm (Ariyanto et al., 2018a). The many food sources so that there will be a symbiosis mangrove ecosystem is a region rich in organic matter. -
Comparative Large-Scale Mitogenomics Evidences Clade-Specific Evolutionary Trends in Mitochondrial Dnas of Bivalvia
GBE Comparative Large-Scale Mitogenomics Evidences Clade-Specific Evolutionary Trends in Mitochondrial DNAs of Bivalvia Federico Plazzi*, Guglielmo Puccio, and Marco Passamonti Department of Biological, Geological and Environmental Sciences, University of Bologna, via Selmi, 3 – 40126 Bologna, Italy *Corresponding author: E-mail: [email protected]. Accepted: July 31, 2016 Abstract Despite the figure of complete bivalve mitochondrial genomes keeps growing, an assessment of the general features of these genomes in a phylogenetic framework is still lacking, despite the fact that bivalve mitochondrial genomes are unusual under different aspects. In this work, we constructed a dataset of one hundred mitochondrial genomes of bivalves to perform the first systematic comparative mitogenomic analysis, developing a phylogenetic background to scaffold the evolutionary history of the class’ mito- chondrial genomes. Highly conserved domains were identified in all protein coding genes; however, four genes (namely, atp6, nad2, nad4L,andnad6) were found to be very divergent for many respects, notwithstanding the overall purifying selection working on those genomes. Moreover, the atp8 gene was newly annotated in 20 mitochondrial genomes, where it was previously declared as lacking or only signaled. Supernumerary mitochondrial proteins were compared, but it was possible to find homologies only among strictly related species. The rearrangement rate on the molecule is too high to be used as a phylogenetic marker, but here we demonstrate for the first time in mollusks that there is correlation between rearrangement rates and evolutionary rates. We also developed a new index (HERMES) to estimate the amount of mitochondrial evolution. Many genomic features are phylogenetically congruent and this allowed us to highlight three main phases in bivalve history: the origin, the branching of palaeoheterodonts, and the second radiation leading to the present-day biodiversity. -
Constructional Morphology of Cerithiform Gastropods
Paleontological Research, vol. 10, no. 3, pp. 233–259, September 30, 2006 6 by the Palaeontological Society of Japan Constructional morphology of cerithiform gastropods JENNY SA¨ LGEBACK1 AND ENRICO SAVAZZI2 1Department of Earth Sciences, Uppsala University, Norbyva¨gen 22, 75236 Uppsala, Sweden 2Department of Palaeozoology, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden. Present address: The Kyoto University Museum, Yoshida Honmachi, Sakyo-ku, Kyoto 606-8501, Japan (email: [email protected]) Received December 19, 2005; Revised manuscript accepted May 26, 2006 Abstract. Cerithiform gastropods possess high-spired shells with small apertures, anterior canals or si- nuses, and usually one or more spiral rows of tubercles, spines or nodes. This shell morphology occurs mostly within the superfamily Cerithioidea. Several morphologic characters of cerithiform shells are adap- tive within five broad functional areas: (1) defence from shell-peeling predators (external sculpture, pre- adult internal barriers, preadult varices, adult aperture) (2) burrowing and infaunal life (burrowing sculp- tures, bent and elongated inhalant adult siphon, plough-like adult outer lip, flattened dorsal region of last whorl), (3) clamping of the aperture onto a solid substrate (broad tangential adult aperture), (4) stabilisa- tion of the shell when epifaunal (broad adult outer lip and at least three types of swellings located on the left ventrolateral side of the last whorl in the adult stage), and (5) righting after accidental overturning (pro- jecting dorsal tubercles or varix on the last or penultimate whorl, in one instance accompanied by hollow ventral tubercles that are removed by abrasion against the substrate in the adult stage). Most of these char- acters are made feasible by determinate growth and a countdown ontogenetic programme. -
Ecology and Behavior of Telescopium Telescopium (Linnaeus, 1758), (Mollusca: Gastropoda: Potamididae) from Chemaguri Mudflats, S
International Journal of Engineering Science Invention ISSN (Online): 2319 – 6734, ISSN (Print): 2319 – 6726 www.ijesi.org ||Volume 4 Issue 4 || April 2015 || PP.16-21 Ecology and behavior of Telescopium Telescopium (Linnaeus, 1758), (Mollusca: Gastropoda: Potamididae) from Chemaguri mudflats, Sagar Island, Sundarbans, India 1, Hafizul Haque, 2, Amalesh Choudhury 1, 2, S. D. Marine Biological Research Institute Sagar Island, Sundarbans, 24 Prgs (S), Pin.-743373, India ABSTRACT: The ecology and behavior of Telescopium telescopium in the marine mangrove mudflats of Chemaguri, Sagar Island, Sundarbans is described during the period of January 2014 to December 2014.The surface air temperature and flood water temperature vary between 34°C to 24°C and 29⁰C to 14⁰C.. The salinity in the habitat was found to vary between 11‰ during monsoon, post monsoon season and 23‰ during premonsoon season. Hydrogen ion Concentration (pH), dissolved oxygen (DO) of flood water have been recorded. KEY WORDS: Ecology, Behavior, Telescopim telescopium, Chemaguri, Community I. INTRODUCTION Among the 60 odd numbers of gastropod species occurring in Sundarbans marine mangrove, Telescopium telescopium is a typical large snail and found in abundance and exploring the mudfloors of Indian Sundarbans.It feeds on organic detritus and surface algae and common on the exposed areas of small ditches, shallow pools or canals with a little flow of water during low tide or at extreme high tide mark in the soft mud or on pneumatophores of mangroves. Population (8-10 nos /m²) reaching upto 20-25 in the mangrove environment regions. Eggs are laid in gelatinous mass and juveniles recorded during April-May often found associated with Balanas sp. -
And Iravadia Quadrasi (Boettger), (Gastropoda: Iravadiidae) from India
Rec. zool. Surv. India: Vol. 117(2)/182-185, 2017 ISSN (Online) : (Applied for) DOI: 10.26515/rzsi/v117/i2/2017/119327 ISSN (Print) : 0375-1511 Short Communication New Records of Perrinia stellata (ADAMS) (Mollusca: Gastropoda: Chelodontidae) and Iravadia quadrasi (Boettger), (Gastropoda: Iravadiidae) from India Abhijna Ghosh, Amit Mukhopadhyay* and Basudev Tripathy Zoological Survey of India, Kolkata, India; [email protected] Abstract We have made collections from Pirotan Island, Gujarat and found two gastropod species namely Perrinia stellata (Adams), and Iravadia quadrasi (Boettger) as new records from India. Keywords: Gastropoda, Gujarat, India, Mollusca, Pirotan Island Introduction Subclass: VETIGASTROPODA Superfamily: SEQUENZIODEA During the course of our regular faunistic surveys along Family: CHILODONTIDAE Indian coast we have made collections from Gujarat, Genus: Perrinia H. Adams & A. Adams, 1854 collections from these localities we have found that two Perrinia stellata (A. Adams) gastropods species, namely Perrinia stellata (Adams), (Figure 2, 3 & 4) and Iravadia quadrasi 1864. Turcia stellate: Adams, Proc. zool. Soc. London, p. 508. 1995. Perrinia stellata: Donald, Bosch, Dance, Robert, in this work is Bouchet et al. (2005). Moolenbeek and Oliver, Sea shell of Eastern Arabia, p.33, pl. 28. Figure 1. Collection sites: Station 1. 22035’54.79’’N and 69057’47.88”E and Station 2. 22035’48.79’’N and 69057’43.45”E, Station 3. 22035’50.97’’N and 69057’45.88”E. Figure 2. Dorsal view of Perrinia stellata (A, Adams), size (6.98mm x2.56mm); * Author for correspondence Article Received on: 30.01.2017 Accepted on: 30.08.2017 New Records of Perrinia stellata (ADAMS) (Mollusca: Gastropoda: Chelodontidae) and Iravadia quadrasi (Boettger), (Gastropoda: Iravadiidae) from India indistinct adjacent to columella; outermost cord strongest and frequently looks scale like granules; non umbilicate. -
TA31 Book.Indb
terra australis 31 Terra Australis reports the results of archaeological and related research within the south and east of Asia, though mainly Australia, New Guinea and island Melanesia — lands that remained terra australis incognita to generations of prehistorians. Its subject is the settlement of the diverse environments in this isolated quarter of the globe by peoples who have maintained their discrete and traditional ways of life into the recent recorded or remembered past and at times into the observable present. Since the beginning of the series, the basic colour on the spine and cover has distinguished the regional distribution of topics as follows: ochre for Australia, green for New Guinea, red for South-East Asia and blue for the Pacific Islands. From 2001, issues with a gold spine will include conference proceedings, edited papers and monographs which in topic or desired format do not fit easily within the original arrangements. All volumes are numbered within the same series. List of volumes in Terra Australis Volume 1: Burrill Lake and Currarong: Coastal Sites in Southern New South Wales. R.J. Lampert (1971) Volume 2: Ol Tumbuna: Archaeological Excavations in the Eastern Central Highlands, Papua New Guinea. J.P. White (1972) Volume 3: New Guinea Stone Age Trade: The Geography and Ecology of Traffic in the Interior. I. Hughes (1977) Volume 4: Recent Prehistory in Southeast Papua. B. Egloff (1979) Volume 5: The Great Kartan Mystery. R. Lampert (1981) Volume 6: Early Man in North Queensland: Art and Archaeology in the Laura Area. A. Rosenfeld, D. Horton and J. Winter (1981) Volume 7: The Alligator Rivers: Prehistory and Ecology in Western Arnhem Land. -
Agglutinins with Binding Specificity for Mammalian Erythrocytes in the Whole Body Extract of Marine Gastropods
© 2019 JETIR June 2019, Volume 6, Issue 6 www.jetir.org (ISSN-2349-5162) AGGLUTININS WITH BINDING SPECIFICITY FOR MAMMALIAN ERYTHROCYTES IN THE WHOLE BODY EXTRACT OF MARINE GASTROPODS Thana Lakshmi, K. (Department of Zoology, Holy Cross College (Autonomous), Nagercoil – 629 004). Abstract Presence of agglutinins in the whole body extract of some locally available species of marine gastropods was studied by adopting haemagglutination assay using 10 different mammalian erythrocytes. Of the animals surveyed, 14 species showed the presence of agglutinins for one or more type of erythrocytes. The agglutinating activity varied with the species as well as with the type of erythrocytes. Rabbit and rat erythrocytes were agglutinated by all the species studied. Highest activity of the agglutinins was recorded in the extract of Fasciolaria tulipa and Fusinus nicobaricus for rabbit erythrocytes, as revealed by a HA (Haemagglutination) titre of 1024, the maximum value obtained in the study. Trochus radiatus, Tonna cepa, Bufornia echineta, Volegalea cochlidium, Chicoreus ramosus, Chicoreus brunneus, Babylonia spirata, Babylonia zeylanica and Turbinella pyrum are among the other species, possessing strong (HA titre ranging from 128 to 512) anti-rabbit agglutinins. Agglutinins with binding specificity for rat erythrocytes have been observed in the extract of Trochus radiatus, Fasciolaria tulipa and Fusinus nicobaricus. None of the species agglutinated dog, cow, goat and buffalo erythrocytes. Agglutinins with weak activity against human erythrocytes were observed in Chicoreus brunneus (HA = 4 – 8). The present work has helped to identify potential sources of agglutinins among marine gastropods available in and around Kanyakumari District and thereby provides the baseline information, in the search for new pharmacologically valuable compounds derived from marine organisms. -
IMPACTS of SELECTIVE and NON-SELECTIVE FISHING GEARS
Comparative study of significant molluscans dwelling at two sites of Jiwani coast, Pakistan Item Type article Authors Ghani, Abdul; Nuzhat, Afsar; Riaz, Ahmed; Shees, Qadir; Saifullah, Saleh; Samroz, Majeed; Najeeb, Imam Download date 03/10/2021 01:08:27 Link to Item http://hdl.handle.net/1834/41191 Pakistan Journal of Marine Sciences, Vol. 28(1), 19-33, 2019. COMPARATIVE STUDY OF SIGNIFICANT MOLLUSCANS DWELLING AT TWO SITES OF JIWANI COAST, PAKISTAN Abdul Ghani, Nuzhat Afsar, Riaz Ahmed, Shees Qadir, Saifullah Saleh, Samroz Majeed and Najeeb Imam Institute of Marine Science, University of Karachi, Karachi 75270, Pakistan. email: [email protected] ABSTRACT: During the present study collectively eighty two (82) molluscan species have been explored from Bandri (25 04. 788 N; 61 45. 059 E) and Shapk beach (25 01. 885 N; 61 43. 682 E) of Jiwani coast. This study presents the first ever record of molluscan fauna from shapk beach of Jiwani. Amongst these fifty eight (58) species were found belonging to class gastropoda, twenty two (22) bivalves, one (1) scaphopod and one (1) polyplachopora comprised of thirty nine (39) families. Each collected samples was identified on species level as well as biometric data of certain species was calculated for both sites. Molluscan species similarity was also calculated between two sites. For gastropods it was remain 74 %, for bivalves 76 %, for Polyplacophora 100 % and for Scapophoda 0 %. Meanwhile total similarity of molluscan species between two sites was calculated 75 %. Notable identified species from Bandri and Shapak includes Oysters, Muricids, Babylonia shells, Trochids, Turbinids and shells belonging to Pinnidae, Arcidae, Veneridae families are of commercial significance which can be exploited for a variety of purposes like edible, ornamental, therapeutic, dye extraction, and in cement industry etc. -
Three Aboriginal Shell Mounds at Hope Inlet: Evidence for Coastal, Not Maritime Late Holocene Economies on the Beagle Gulf Mainland, Northern Australia
Three Aboriginal shell mounds at Hope Inlet: Evidence for coastal, not maritime Late Holocene economies on the Beagle Gulf mainland, northern Australia Patricia M. Bourke Abstract Many hundreds of Aboriginal shell mounds exist on the northern coasts of Australia. Though these archaeological features increasingly figure in broad constructions of past coastal hunter-gatherer economies, few have been analysed in any detail. This paper describes the excavation and analysis of three Anadara-dominated shell mounds situated in adjacent microenvironments at Hope Inlet, Shoal Bay near Darwin on the Northern Territory coast. These stratified deposits, formed over some 15 centuries between about 2000 and 500 years B.P., provide a relatively fine- grained record of subsistence and settlement strategies of hunter-gatherer peoples during this Late Holocene period. This study finds that these North Australian coastal groups practiced not a specialised marine or maritime subsistence economy focused on offshore resources, but a generalised and flexible coastal subsistence economy tied to the land. Introduction Many hundreds of Aboriginal shell mounds exist on Australia’s northern coasts. Though these archaeological features increasingly figure in broad constructions of past coastal hunter-gatherer economies, relatively few have been excavated and analysed in fine detail. This paper describes the excavation and analysis of three shell mounds at Hope Inlet, Shoal Bay on the Northern Territory coast near Darwin, undertaken in 1996 with the permission and help of traditional owners, the Larrakia community. The excavated sites are three of hundreds of mounds dominated by Location of Hope Inlet on the North Australian Anadara granosa shell, recorded during surveys for a PhD Figure 1 coast, showing places mentioned in the text. -
Northern Territory NT Page 1 of 204 21-Jan-11 Species List for NRM Region Northern Territory, Northern Territory
Biodiversity Summary for NRM Regions Species List What is the summary for and where does it come from? This list has been produced by the Department of Sustainability, Environment, Water, Population and Communities (SEWPC) for the Natural Resource Management Spatial Information System. The list was produced using the AustralianAustralian Natural Natural Heritage Heritage Assessment Assessment Tool Tool (ANHAT), which analyses data from a range of plant and animal surveys and collections from across Australia to automatically generate a report for each NRM region. Data sources (Appendix 2) include national and state herbaria, museums, state governments, CSIRO, Birds Australia and a range of surveys conducted by or for DEWHA. For each family of plant and animal covered by ANHAT (Appendix 1), this document gives the number of species in the country and how many of them are found in the region. It also identifies species listed as Vulnerable, Critically Endangered, Endangered or Conservation Dependent under the EPBC Act. A biodiversity summary for this region is also available. For more information please see: www.environment.gov.au/heritage/anhat/index.html Limitations • ANHAT currently contains information on the distribution of over 30,000 Australian taxa. This includes all mammals, birds, reptiles, frogs and fish, 137 families of vascular plants (over 15,000 species) and a range of invertebrate groups. Groups notnot yet yet covered covered in inANHAT ANHAT are notnot included included in in the the list. list. • The data used come from authoritative sources, but they are not perfect. All species names have been confirmed as valid species names, but it is not possible to confirm all species locations.