New Records for the Distribution and a Description of the Egg Capsules Of
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Down Effects of a Native Crab on a System of Native and Introduced Prey Emilyw
OPENQ ACCESS Freely available online e pLOSl- Preference Alters Consumptive Effects of Predators: Top- Down Effects of a Native Crab on a System of Native and Introduced Prey EmilyW. Grason"'', BenjaminG. Miner"' 1 WesternWashington University, Biology Department, Bellingham, Washington, United States of America,zshannon Point MarineCenter, Anacortes, Washington, UnitedStates of America Abstract Top-down effects of predators in systems depend on the rate at which predators consume prey, and on predator preferences among available prey. In invaded communities, these parameters might be difficult to predict because ecological relationships are typically evolutionarily novel. We examined feeding rates and preferences of a crab native to the Pacific Northwest, Cancer productus, among four prey items: two invasive species of oyster drill the marine whelks Urosaipinx cinerea and Ocenebra inornata! and two species of oyster Crassostrea gigas and Ostrea iurida! that are also consumed by U. cinerea and O. inornata. This system is also characterized by intraguild predation because crabs are predators of drills and compete with them for prey oysters!. When only the oysters were offered, crabs did not express a preferenceand consumedapproximately 9 juvenileoysters crab " day ". Wethen testedwhether crabs preferred adult drills of either U. cinerea or O. inornata, or juvenile oysters C. gigas!. While crabs consumed drills and oysters at approximately the same rate when only one type of prey was offered, they expressed a strong preference for juvenile oysters over drills when they were allowed to choose among the three prey items. This preference for oysters might negate the positive indirect effects that crabs have on oysters by crabs consuming drills trophic cascade! because crabs have a large negative direct effect on oysters when crabs, oysters, and drills co-occur. -
Bering Sea Marine Invasive Species Assessment Alaska Center for Conservation Science
Bering Sea Marine Invasive Species Assessment Alaska Center for Conservation Science Scientific Name: Batillaria attramentaria Phylum Mollusca Common Name Japanese false cerith Class Gastropoda Order Neotaenioglossa Family Batillariidae Z:\GAP\NPRB Marine Invasives\NPRB_DB\SppMaps\BATATT.png 153 Final Rank 46.00 Data Deficiency: 12.50 Category Scores and Data Deficiencies Total Data Deficient Category Score Possible Points Distribution and Habitat: 12.25 23 7.50 Anthropogenic Influence: 6 10 0 Biological Characteristics: 17 25 5.00 Impacts: 5 30 0 Figure 1. Occurrence records for non-native species, and their geographic proximity to the Bering Sea. Ecoregions are based on the classification system by Spalding et al. (2007). Totals: 40.25 87.50 12.50 Occurrence record data source(s): NEMESIS and NAS databases. General Biological Information Tolerances and Thresholds Minimum Temperature (°C) -2 Minimum Salinity (ppt) 7 Maximum Temperature (°C) 40 Maximum Salinity (ppt) 33 Minimum Reproductive Temperature (°C) Minimum Reproductive Salinity (ppt) Maximum Reproductive Temperature (°C) Maximum Reproductive Salinity (ppt) Additional Notes Size of adult shells ranges from 10 to 34 mm. The shell is usually gray-brown, often with a white band below the suture, but can range from light brown to dirty-black. Historically introduced with the Pacific oyster, Crassostrea gigas, but in recent years, it has been found in areas where oysters are not cultivated. Nevertheless, its spread has been attributed to anthropogenic vectors rather than natural dispersal. Report updated on Wednesday, December 06, 2017 Page 1 of 13 1. Distribution and Habitat 1.1 Survival requirements - Water temperature Choice: Considerable overlap – A large area (>75%) of the Bering Sea has temperatures suitable for year-round survival Score: A 3.75 of High uncertainty? 3.75 Ranking Rationale: Background Information: Temperatures required for year-round survival occur over a large Based on its geographic distribution, B. -
Biodiversity, Habitats, Flora and Fauna
1 North East inshore Biodiversity, Habitats, Flora and Fauna - Protected Sites and Species 2 North East offshore 3 East Inshore Baseline/issues: North West Plan Areas 10 11 Baseline/issues: North East Plan Areas 1 2 4 East Offshore (Please note that the figures in brackets refer to the SA scoping database. This is • SACs: There are two SACs in the plan area – the Berwickshire and North available on the MMO website) Northumberland Coast SAC, and the Flamborough Head SAC (Biodiv_334) 5 South East inshore • Special Areas of Conservation (SACs): There are five SACs in the plan area • The Southern North Sea pSAC for harbour porpoise (Phocoena phocoena) 6 South inshore – Solway Firth SAC, Drigg Coast SAC, Morecambe Bay SAC, Shell Flat and is currently undergoing public consultation (until 3 May 2016). Part of Lune Deep SAC and Dee Estuary SAC (Biodiv_372). The Sefton Coast the pSAC is in the offshore plan area. The pSAC stretches across the 7 South offshore SAC is a terrestrial site, mainly for designated for dune features. Although North East offshore, East inshore and offshore and South East plan areas not within the inshore marine plan area, the development of the marine plan (Biodiv_595) 8 South West inshore could affect the SAC (Biodiv_665) • SPAs: There are six SPAs in the plan area - Teesmouth and Cleveland 9 South west offshore • Special protection Areas (SPAs): There are eight SPAs in the plan area - Coast SPA, Coquet Island SPA, Lindisfarne SPA, St Abbs Head to Fast Dee Estuary SPA, Liverpool Bay SPA, Mersey Estuary SPA, Ribble and Castle SPA and the Farne Islands SPA, Flamborough Head and Bempton 10 North West inshore Alt Estuaries SPA, Mersey Narrows and North Wirral Foreshore SPA, Cliffs SPA (Biodiv_335) Morecambe Bay SPA, Duddon Estuary SPA and Upper Solway Flats and • The Northumberland Marine pSPA is currently undergoing public 11 North West offshore Marshes SPA (Biodiv_371) consultation (until 21 April 2016). -
(Approx) Mixed Micro Shells (22G Bags) Philippines € 10,00 £8,64 $11,69 Each 22G Bag Provides Hours of Fun; Some Interesting Foraminifera Also Included
Special Price £ US$ Family Genus, species Country Quality Size Remarks w/o Photo Date added Category characteristic (€) (approx) (approx) Mixed micro shells (22g bags) Philippines € 10,00 £8,64 $11,69 Each 22g bag provides hours of fun; some interesting Foraminifera also included. 17/06/21 Mixed micro shells Ischnochitonidae Callistochiton pulchrior Panama F+++ 89mm € 1,80 £1,55 $2,10 21/12/16 Polyplacophora Ischnochitonidae Chaetopleura lurida Panama F+++ 2022mm € 3,00 £2,59 $3,51 Hairy girdles, beautifully preserved. Web 24/12/16 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 30mm+ € 4,00 £3,45 $4,68 30/04/21 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 27.9mm € 2,80 £2,42 $3,27 30/04/21 Polyplacophora Ischnochitonidae Stenoplax limaciformis Panama F+++ 16mm+ € 6,50 £5,61 $7,60 Uncommon. 24/12/16 Polyplacophora Chitonidae Acanthopleura gemmata Philippines F+++ 25mm+ € 2,50 £2,16 $2,92 Hairy margins, beautifully preserved. 04/08/17 Polyplacophora Chitonidae Acanthopleura gemmata Australia F+++ 25mm+ € 2,60 £2,25 $3,04 02/06/18 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 41mm+ € 4,00 £3,45 $4,68 West Indian 'fuzzy' chiton. Web 24/12/16 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 32mm+ € 3,00 £2,59 $3,51 West Indian 'fuzzy' chiton. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 44mm+ € 5,00 £4,32 $5,85 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F++ 35mm € 2,50 £2,16 $2,92 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 29mm+ € 3,00 £2,59 $3,51 Caribbean. -
Assessing the Impact of Key Marine Invasive Non-Native Species on Welsh MPA Habitat Features, Fisheries and Aquaculture
Assessing the impact of key Marine Invasive Non-Native Species on Welsh MPA habitat features, fisheries and aquaculture. Tillin, H.M., Kessel, C., Sewell, J., Wood, C.A. Bishop, J.D.D Marine Biological Association of the UK Report No. 454 Date www.naturalresourceswales.gov.uk About Natural Resources Wales Natural Resources Wales’ purpose is to pursue sustainable management of natural resources. This means looking after air, land, water, wildlife, plants and soil to improve Wales’ well-being, and provide a better future for everyone. Evidence at Natural Resources Wales Natural Resources Wales is an evidence based organisation. We seek to ensure that our strategy, decisions, operations and advice to Welsh Government and others are underpinned by sound and quality-assured evidence. We recognise that it is critically important to have a good understanding of our changing environment. We will realise this vision by: Maintaining and developing the technical specialist skills of our staff; Securing our data and information; Having a well resourced proactive programme of evidence work; Continuing to review and add to our evidence to ensure it is fit for the challenges facing us; and Communicating our evidence in an open and transparent way. This Evidence Report series serves as a record of work carried out or commissioned by Natural Resources Wales. It also helps us to share and promote use of our evidence by others and develop future collaborations. However, the views and recommendations presented in this report are not necessarily those of -
PS Exotic Species Detection System
An Exotic Species Detection Program for Puget Sound Andrew N. Cohen San Francisco Estuary Institute Oakland, California prepared for the Puget Sound Action Team Olympia, Washington with funding from the National Estuary Program, U.S. Environmental Protection Agency May 2004 Publication # OTH04-02 Contents Executive Summary i Acknowledgments iv What is an Exotic Species Detection Program? 1 Definitions 2 Puget Sound 4 Biological Monitoring Programs in Puget Sound 6 • Relevant Existing Monitoring Programs in Puget Sound 6 Exotic Species Database: Data Categories, Assessments and Baseline Data 7 • Spatial Boundaries 8 • Invasion Status 9 • Population Status 17 • Other Data and Assessments 18 • Work to date in Puget Sound 22 Taxonomic Support 23 • Taxonomic Information Tools 24 • Identification of Suspect Specimens 28 Sampling 28 • General Considerations Regarding Target Taxonomic Groups 29 • General Considerations Regarding Target Habitats and Communities 33 • Sampling Recommendations for Puget Sound 35 Literature Cited 38 Personal Communications 42 Acronyms and Abbreviations Used in this Report 42 Appendix A. Budget Estimate for a Puget Sound Exotic Species Detection Program 43 Appendix B. Preliminary List of Exotic and Cryptogenic Species in Puget Sound 46 Appendix C. An Offer to Analyze Sea Spiders 52 Tables Table 1. Benefits of an Effective ESDP 2 Table 2. Invasion Status Definitions Used by Different Studies 10 Table 3. Scoring Systems for Assessing Invasion Status 12 Table 4. Approaches Used in Different Studies to Assess Invasion Status 14 Table 5. Criteria Used in Different Studies to Assess Invasion Status 15 Table 6. Definitions of "Established" Used in Different Studies 17 Table 7. Vector Categories Used in Different Studies 20 Table 8. -
And Transfers
MOLLUSCAN INTRODUCTIONS AND TRANSFERS A Maryland Sea Grant Publication College Park Maryland MOLLUSCAN INTRODUCTIONS AND TRANSFERS MOLLUSCAN INTRODUCTIONS AND TRANSFERS Rrsx CoNSIDERATIONs AND IMPLICATIONS A Symposium Proceedings Edited by ] ames T. Carlton and Aaron Rosenfield ...,.~ . (.......-~j/4!1!!f~~ A Maryland Sea Grant Publication ·~ .. College Park, Maryland Published by the Maryland Sea Grant College, University of Maryland, College Park. Publication of this book is supported by grant #NA46RG009l from the National Oceanic and Atmospheric Administra tion to the Maryland Sea Grant College and by Grant #NA90AA-D-SG 184. The papers in this book were presented at a special symposium, Molluscan Introductions and Transfers: Risk Consider ations and Implications, presented at the 82nd Annual Meeting of the National Shellfisheries Association and the Shellfish Institute of North America, held April 4-5, 1990 in Williamsburg, Virginia. All the papers are reprinted with the permission of the Journal of Shellfish Research. Copyright © 1994 Maryland Sea Grant College. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, elec tronic or mechanical, including photocopying, recording, or any information storage or retrival system, without permis sion in writing from Maryland Sea Grant. Sea Grant is a federal-state-university partnership encouraging the wise stewardship of our marine resources through research, education and technology transfer. University of Maryland Publication UM-SG-TS-94-02 ISBN: 0-943676-58-4 For information on Maryland Sea Grant publications, contact: Maryland Sea Grant College 0112 Skinner Hall University of Maryland System College Park, Maryland 20742 Printed on recycled paper. -
Corel Ventura
Ruthenica, 2003, 13(1): 53-74. ©Ruthenica, 2003 Review of the Recent species of Ocenebra Gray, 1847 and Ocinebrellus Jousseaume, 1880 in the Northwestern Pacific R. HOUART*, B. I. SIRENKO** *Research Associate, Institut royal des Sciences naturelles de Belgique, rue Vautier, 29, 1000 Bruxelles, BELGIUM. E-mail: [email protected] **Zoological Institute of the Russian Academy of Sciences, Universitetskaya nab. 1, St.-Petersburg, 199034 RUSSIA. E-mail: [email protected] ABSTRACT. The generic position of O. acanthopho- means that the character was observed in a few cases ra (A. Adams, 1863), Ocenebra inornata (Récluz, but not in all specimens. 1851), O. lumaria (Yokoyama, 1926) and Ocinebrellus falcatus (Sowerby, 1834) is discussed. The geographi- Other abbreviations: cal distribution in the northwestern Pacific is given for each species. BM(NH): The Natural History Museum, Lon- don, U.K. MNHN: Muséum national d’Histoire naturelle, Paris, France. Introduction SMF: Forschunginstitut Senckenberg, Frankfurt, Germany. The starting point of this paper was a set of USNM: National Museum of Natural History, apparently different ocenebrine species from the Washington, D.C., U.S.A. Northwestern Pacific sent for identification and ZISP: Zoological Institute of the Russian Aca- comments. After having compared this material with demy of Sciences, St. Petersburg, Russia. specimens stored in the Zoological Institute of the UMUT: The University Museum, The Universi- Russian Academy of Sciences, in the RH collection, ty of Tokyo, Japan. and with specimens illustrated in recent publications, RH: collection of Roland Houart. it appeared necessary to classify these species in an ad.: adult specimen. adequate genus before discussing the geographical juv.: juvenile specimen. -
First Record of Double Aperture in a Gastropod Shell
First record of double aperture in a gastropod shell MARCOS V. DA SILVA 1*, MARIANNY K.S. LIMA 1, CRISTIANE X. BARROSO 1, SORAYA G. RABAY 1, CARLOS A.O. MEIRELLES 1, 2 & HELENA MATTHEWS-CASCON 1, 2, 3 1 Universidade Federal do Ceará, Departamento de Biologia, Laboratório de Invertebrados Marinhos do Ceará (LIMCE), Bloco 909, Campus do Pici, 60455-760, Fortaleza, Ceará, Brasil. 2 Programa de Pós-Graduação em Engenharia de Pesca, Campus do Pici, 60356-600, Fortaleza, Ceará, Brasil. 3 Programa de Pós-Graduação em Ciências Marinhas Tropicais, Instituto de Ciências do Mar (LABOMAR), Av. da Abolição, 3207 - Meireles, 60165-081, Fortaleza, Ceará, Brasil. Corresponding author: [email protected] m Abstract. The present study reports the occurrence of a Cerithium atratum (Born, 1778) shell with two apertures. The original aperture (measuring 5.8 by 5.0 mm), blocked by a small pebble fragment, could have prevented the head-foot part of the body to emerge. The gastropod (24.8 mm length) formed a new aperture similar to the original, measuring 5.9 by 4.6 mm and presenting a polished and circular outer lip, and partially formed anal and siphonal canal. This anomaly had not been registered yet in mollusks. Keywords: Cerithium atratum, anomalous, double aperture, neoformation Resumo. Primeiro registro de dupla abertura em concha de gastrópode. O presente estudo relata a ocorrência de um Cerithium atratum (Born, 1778) com dupla abertura na concha. A abertura original (5,8 mm x 5,0 mm), bloqueada por um pequeno fragmento de seixo, pode ter impedido a saída da região cefalopediosa. -
Ecological Periodic Tables for Nekton and Benthic Macrofaunal Community Usage of Estuarine Habitats Dr
Ecological periodic tables for nekton and benthic macrofaunal community usage of estuarine habitats Dr. Steven P. Ferraro U.S. Environmental Protection Agency Hatfield Marine Science Center 2111 SE Marine Science Drive Newport, OR 97365-5260 [email protected] This is a proposed presentation and does not necessarily reflect EPA policy. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. Office of Research and Development National Health and Environmental Effects Research Laboratory Ecological Society of America, Portland, OR August 5–10, 2012 Ecological periodic tables are information organizing systems Elements: Habitat types Attributes: Predictably recurring (periodic) properties of a biotic community 1 Information Organizing Systems Chemistry Biology Astronomy Periodic table of chemical elements Linnaean system of classification Hertzsprung-Russell diagram • simple, easy to understand • exceptionally useful • foster the expansion of scientific understanding and inquiry 2 • progenitors of scientific theories Ecological periodic tables are founded on the ecological tenet: Biophysical environment (habitats) structure biotic communities. and its corollary: Habitats are templets for ecological strategies. 3 “If the observed patterns in community structure are products of natural selection, then similar selection by similar environments should produce similar optimal solutions to community structure. In particular, if species are assembled non-randomly into communities and if the fine -
Marine Science
ICES Journal of Marine Science ICES Journal of Marine Science (2015), 72(3), 992–996. doi:10.1093/icesjms/fsu232 Contribution to the Themed Section: ‘Risk Assessment’ Introduction Risk assessment and risk management: a primer for marine scientists Mark T. Gibbs1,2 and Howard I. Browman3* 1Department of Mathematics and Physics, University of Queensland, St Lucia, QLD, Australia 2AECOM 540, Wickham Street, Fortitude Valley, QLD 4007, Australia 3Institute of Marine Research, Marine Ecosystem Acoustics Disciplinary Group, Austevoll Research Station, N-5392 Storebø, Norway *Corresponding author: e-mail: [email protected] Gibbs, M. T., and Browman, H. I. Risk assessment and risk management: a primer for marine scientists. – ICES Journal of Marine Science, 72: 992–996. Received 29 November 2014; accepted 30 November 2014. Risk assessment is the management approach or framework of choice in many disciplines, including health care and research, engineering design, and particularly the insurance sector which relies on the best available forward projections of natural hazards and accidents. The marine manage- ment community, which includes researchers, practitioners, and resource managers responsible for individual targeted stocks, aquaculture activ- ities, and the marine environment in general, has been slower to take up quantitative risk assessment approaches. Whilst there are prominent examples where risk assessment and management approaches have been applied, they are relatively few. This article theme set presents examples of such and identifies tools and approaches that can be applied to coastal and oceanic marine systems worldwide. The methods developed and the lessons learned from these studies can be used to guide researchers, practitioners, and resource managers. -
Marine Invasive Species in Nordic Waters - Fact Sheet
NOBANIS - Marine invasive species in Nordic waters - Fact Sheet Rapana venosa Author of this species fact sheet: Kathe R. Jensen, Zoological Museum, Natural History Museum of Denmark, Universitetsparken 15, 2100 København Ø, Denmark. Phone: +45 353-21083, E-mail: [email protected] Bibliographical reference – how to cite this fact sheet: Jensen, Kathe R. (2010): NOBANIS – Invasive Alien Species Fact Sheet – Rapana venosa – From: Identification key to marine invasive species in Nordic waters – NOBANIS www.nobanis.org, Date of access x/x/201x. Species description Species name Rapana venosa, (Valenciennes, 1846) – Veined rapa whelk Synonyms Purpura venosa Valenciennes, 1846; Rapana thomasiana Crosse, 1861; ?Rapana marginata (Valenciennes, 1846); ?Rapana pechiliensis Grabau & King, 1928; Rapana pontica Nordsieck, 1969. Common names Veined rapa whelk, Asian rapa whelk (USA, UK); Thomas’ whelk (English common name for Black Sea whelks identified as R. thomasiana); Cocozza, Bobolone (IT); Geaderde stekelhoorn (NL); Bai top shell (commercial name for Bulgarian Black Sea specimens); Akanishi (JP). Taxonomic note The genus Rapana is sometimes referred to the family Muricidae (e.g., DAISIE, 2006), sometimes to Thaididae (e.g., Koutsoubas & Voultsiadou-Koukoura, 1991; Mann & Harding, 2000). According to World Register of Marine Species (WoRMS) the family should be Muricidae, and the Thaididae is considered a synonym of Rapaninae, a subfamily of Muricidae (see Bouchet & Rocroi, 2005). Identification Rapana venosa is a large, 9-16 cm shell length, species with a heavy, strongly sculptured shell. Specimens up to 17.5 cm have been recorded in the Black Sea (Micu et al., 2008). The spire is relatively short, less than half the height of the aperture.