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Trematoda: Microphallidae)
and Proceedings of the Royal Society ojTasmania, Volume 122(2), 1988 119 A STUDY OF THE LIFE HISTORY OF MICROPHALLUS PA,RAGR,APSI SMITH 1983 (TREMATODA: MICROPHALLIDAE) by P. J. Bell (with three tables and four text-figures) BELL, P. J" t9g8 (31:x): A study of the life history of Microphallus paragrapsi Smith 1983 (Trematoda : Microphallidae), Pap, Proc. R. Soc. Tasm. 122(2): 119,·125, ISSN 0080-4703. 43 Waterloo Crescem, Battery Point, Tasmania, Australia 7000; formerly Department of Zoology, University of Tasmania. Metacercariae of the micropha\lid trematode Microphallus paragrapsi Smith 1983 were found in r.he nervous system of the smooth pebble crab Philyra laevis (Bell 1855). Sporocysts of M. paragrapsi were found in the hepatopancreas of the intertidal gastropod Assiminea brazieri (Tenison Woods 1876). Under laboratory conditions, cercariae were found to emerge from the snail host and invade the intertidal crab P, iaevis, where they subsequently encysted within the nerves innervating the legs and claws. Adults of M. para/irapsi were found in the gut of the Pacific gull Lams pacificus (Latham 18(1). The life history of M. paragrapsi is very similar to the life history of the related species Microphallus pachygrapsi Deblock & Prevo! 1969. Key Words: Microphallus paragrapsi, life-history, microphaIHd, crab, Tasmania. INTRODUCTION 200 crabs examined throughout the study period, none were infected by M. paragrapsi and only one In 1982, during a study of parasites of the crab was found to be infected with a single cyst of smooth pebble crab Philyra laevis (Bell 1855), the trematode Maritrema eroliae Yamaguti 1939. metacercariae were found in the nervous system of Metacercarial cysts were dissected free of crabs from a number of localities in Tasmania. -
Digenea, Microphallidae) and Relative Merits of Two-Host Microphallid Life Cycles
Parasitology Research (2018) 117:1051–1068 https://doi.org/10.1007/s00436-018-5782-1 ORIGINAL PAPER Microphallus ochotensis sp. nov. (Digenea, Microphallidae) and relative merits of two-host microphallid life cycles Kirill V. Galaktionov1,2 & Isabel Blasco-Costa3 Received: 21 July 2017 /Accepted: 23 January 2018 /Published online: 3 February 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract A new digenean species, Microphallus ochotensis sp. nov., was described from the intestine of Pacific eiders (Somateria mollissima v-nigrum) from the north of the Sea of Okhotsk. It differs from other microphallids in the structure of the metraterm, which consists of two distinct parts: a sac with spicule-like structures and a short muscular duct opening into the genital atrium. Mi. ochotensis forms a monophyletic clade together with other congeneric species in phylograms derived from the 28S and ITS2 rRNA gene. Its dixenous life cycle was elucidated with the use of the same molecular markers. Encysted metacercariae infective for birds develop inside sporocysts in the first intermediate host, an intertidal mollusc Falsicingula kurilensis. The morphology of metacercariae and adults was described with an emphasis on the structure of terminal genitalia. Considering that Falsicingula occurs at the Pacific coast of North America and that the Pacific eider is capable of trans-continental flights, the distribution of Mi. ochotensis might span the Pacific coast of Alaska and Canada. The range of its final hosts may presumably include other benthos- feeding marine ducks as well as shorebirds. We suggest that a broad occurrence of two-host life cycles in microphallids is associated with parasitism in birds migrating along sea coasts. -
And Interspecific Competition Among Helminth
Available online at www.sciencedirect.com International Journal for Parasitology 38 (2008) 1435–1444 www.elsevier.com/locate/ijpara Intra- and interspecific competition among helminth parasites: Effects on Coitocaecum parvum life history strategy, size and fecundity Cle´ment Lagrue *, Robert Poulin Department of Zoology, University of Otago, 340 Great King Street, P.O. Box 56, Dunedin 9054, New Zealand Received 5 February 2008; received in revised form 4 April 2008; accepted 7 April 2008 Abstract Larval helminths often share intermediate hosts with other individuals of the same or different species. Competition for resources and/ or conflicts over transmission routes are likely to influence both the association patterns between species and the life history strategies of each individual. Parasites sharing common intermediate hosts may have evolved ways to avoid or associate with other species depending on their definitive host. If not, individual parasites could develop alternative life history strategies in response to association with particular species. Three sympatric species of helminths exploit the amphipod Paracalliope fluviatilis as an intermediate host in New Zea- land: the acanthocephalan Acanthocephalus galaxii, the trematode Microphallus sp. and the progenetic trematode Coitocaecum parvum. Adult A. galaxii and C. parvum are both fish parasites whereas Microphallus sp. infects birds. We found no association, either positive or negative, among the three parasite species. The effects of intra- and interspecific interactions were also measured in the trematode C. parvum. Both intra- and interspecific competition seemed to affect both the life history strategy and the size and fecundity of C. parvum. Firstly, the proportion of progenesis was higher in metacercariae sharing their host with Microphallus sp., the bird parasite, than in any other situation. -
Behavioral Analysis of Microphallus Turgidus Cercariae in Relation to Microhabitat of Two Host Grass Shrimp Species (Palaemonetes Spp.)
W&M ScholarWorks VIMS Articles 2017 Behavioral analysis of Microphallus turgidus cercariae in relation to microhabitat of two host grass shrimp species (Palaemonetes spp.) PA O'Leary Virginia Institute of Marine Science OJ Pung Follow this and additional works at: https://scholarworks.wm.edu/vimsarticles Part of the Aquaculture and Fisheries Commons Recommended Citation O'Leary, PA and Pung, OJ, "Behavioral analysis of Microphallus turgidus cercariae in relation to microhabitat of two host grass shrimp species (Palaemonetes spp.)" (2017). VIMS Articles. 774. https://scholarworks.wm.edu/vimsarticles/774 This Article is brought to you for free and open access by W&M ScholarWorks. It has been accepted for inclusion in VIMS Articles by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Vol. 122: 237–245, 2017 DISEASES OF AQUATIC ORGANISMS Published January 24 doi: 10.3354/dao03075 Dis Aquat Org Behavioral analysis of Microphallus turgidus cercariae in relation to microhabitat of two host grass shrimp species (Palaemonetes spp.) Patricia A. O’Leary1,2,*, Oscar J. Pung1 1Department of Biology, Georgia Southern University, Statesboro, Georgia 30458, USA 2Present address: Department of Aquatic Health Sciences, Virginia Institute of Marine Science, PO Box 1346, State Route 1208, Gloucester Point, Virginia 23062, USA ABSTRACT: The behavior of Microphallus turgidus cercariae was examined and compared to microhabitat selection of the second intermediate hosts of the parasite, Palaemonetes spp. grass shrimp. Cercariae were tested for photokinetic and geotactic responses, and a behavioral etho- gram was established for cercariae in control and grass shrimp-conditioned brackish water. Photo - kinesis trials were performed using a half-covered Petri dish, and geotaxis trials used a graduated cylinder. -
Annual 2016-2017
ANNUAL 2016-2017 REPORT UCSB MARINE SCIENCE INSTITUTE | UC SANTA BARBARA Table of Contents Director’s Statement 3 Organizational Charts 5 Administrative Staff 6 Centers and Units 7 Other Projects & Activities 8 Seminars, Workshops, Conferences, and Meetings 9 Coastal Research Center 11 Marine Biotechnology Center 13 Ocean and Coastal Policy Center 20 UC Natural Reserve System 21 Analytical Laboratory 23 Education and Outreach 24 Awards Administered 25 Awards 26 Research Summaries 36 Space 129 Statistical Summary 135 Research Support Summary 136 Statistical Summary 2015-2016 138 Five-Year Research Support Summary 140 Funding Agencies 143 MSI Advisory Committee, 145 Administrative & Technical Staff Principal Investigators 148 2 DIRECTor’s STATEMENT 3 Director’s Statement As we move towards MSI’s 50th anniversary in 2019 the Marine Science Institute our scientists continue on a trajectory of engaging in cutting edge research and of solving pressing problems in ocean science. Our research portfolio continues to diversify with an ever growing set of funders representing a very large array of government agencies, private industry, non-profit foundations and individuals. Discoveries by MSI researchers are revealing wondrous new aspects of ocean systems from new insights into the ecology of coral reefs to the effects of ocean acidification. This new knowledge continues to improve our basic understanding of the seas and the wide range of services that they provide to society. I am proud of the contribution that our scientist make to society’s knowledge as these discoveries continually teach us how to be better stewards of the ocean realm. While ocean discovery is key to our mission, MSI researchers also act on this knowledge to solve pressing issues associated with the constructive use of ocean resources. -
Behavioral Analysis of a Digenetic Trematode Cercaria (Microphallus Turgidus) in Relation to the Microhabitat of Grass Shrimp (Palaemonetes Spp.)
Georgia Southern University Digital Commons@Georgia Southern Electronic Theses and Dissertations Graduate Studies, Jack N. Averitt College of Fall 2010 Behavioral Analysis of a Digenetic Trematode Cercaria (Microphallus Turgidus) in Relation to The Microhabitat of Grass Shrimp (Palaemonetes Spp.) Patricia O'Leary Follow this and additional works at: https://digitalcommons.georgiasouthern.edu/etd Recommended Citation O'Leary, Patricia, "Behavioral Analysis of a Digenetic Trematode Cercaria (Microphallus Turgidus) in Relation to The Microhabitat of Grass Shrimp (Palaemonetes Spp.)" (2010). Electronic Theses and Dissertations. 743. https://digitalcommons.georgiasouthern.edu/etd/743 This thesis (open access) is brought to you for free and open access by the Graduate Studies, Jack N. Averitt College of at Digital Commons@Georgia Southern. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of Digital Commons@Georgia Southern. For more information, please contact [email protected]. Behavioral analysis of a digenetic trematode cercaria ( Microphallus turgidus ) in relation to the microhabitat of grass shrimp ( Palaemonetes spp.) by Patricia O’Leary (Under the Direction of Oscar J. Pung) Abstract The hydrobiid snail and grass shrimp hosts of the microphallid trematode Microphallus turgidus are found in specific microhabitats. The primary second intermediate host of this parasite is the grass shrimp Palaemonetes pugio. The behavior of trematode cercaria often reflects the habitat and behavior of the host species. The objective of my study was to examine the behavior of M. turgidus in relation to the microhabitat selection of the second intermediate host. To do so, I established a behavioral ethogram for the cercariae of M. turgidus and compared the behavior of these parasites to the known host behavior. -
University of Copenhagen
Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Lefebvre, Francois; Fredensborg, Brian Lund; Armstrong, Amy; Hansen, Ellen; Poulin, Robert Published in: Hydrobiologia Publication date: 2005 Document version Early version, also known as pre-print Citation for published version (APA): Lefebvre, F., Fredensborg, B. L., Armstrong, A., Hansen, E., & Poulin, R. (2005). Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Hydrobiologia, 545. Download date: 28. Sep. 2021 Hydrobiologia (2005) 545:65–73 Ó Springer 2005 DOI 10.1007/s10750-005-2211-0 Primary Research Paper Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Franc¸ ois Lefebvre*, Brian Fredensborg, Amy Armstrong, Ellen Hansen & Robert Poulin Department of Zoology, University of Otago, P.O. Box 56, Dunedin, New Zealand (*Author for correspondence: E-mail: [email protected]) Received 10 November 2004; in revised form 26 January 2005; accepted 13 February 2005 Key words: Amphipoda, Trematoda, Coitocaecum parvum, Microphallus sp., reproduction, mate choice Abstract The potential impact of parasitism on pairing patterns of the amphipod Paracalliope fluviatilis was investigated with regard to the infection status of both males and females. Two helminth parasites com- monly use this crustacean species as second intermediate host. One of them, Coitocaecum parvum,isa progenetic trematode with an egg-producing metacercaria occasionally reaching 2.0 mm in length, i.e. more than 50% the typical length of its amphipod host. The amphipod was shown to exhibit the common reproductive features of most precopula pair-forming crustaceans, i.e. larger males and females among pairs than among singles, more fecund females in pairs, and a trend for size-assortative pairing. -
Annual Report Marinemarine Science Science Institute Institute |• UC UC Santa Santa Barbara Barbara 2013 2014
ANNUAL REPORT MarineMarine Science Science Institute Institute |• UC UC Santa Santa Barbara Barbara 2013 2014 ANNUAL REPORT | 2013-2014 1 ANNUAL REPORT | 2013-2014 Table of Contents Director’s Statement 3 Organizational Charts 5 Administrative Staff 6 Centers and Units 7 Other Projects and Activities 8 Seminars, Workshops, Conferences, and Meetings 9 Coastal Research Center 17 EcoInformatics Center 19 Marine Biotechnology Center 21 National Center for Ecological Analysis and Synthesis 23 Ocean and Coastal Policy Center 25 UC Natural Reserve System 26 Analytical Laboratory 28 REEF/Outreach 29 Awards Administered 30 Awards 31 Research Summaries 39 Space 142 Statistical Summary 148 Research Support Summary 149 Statistical Summary 2013-2014 151 Five-Year Research Support Summary 153 Funding Agencies 156 MSI Advisory Committee, 158 Administrative and Technical Staff Principal Investigators 161 2 ANNUAL REPORT | 2013-2014 Director’s Statement 3 ANNUAL REPORT | 2013-2014 Director’s Statement This year marks the 10th anniversary of the opening of the Marine Science Institute’s Marine Science Research Building, a state-of-the-art facility located on the bluff overlooking the Pacific Ocean on the eastern edge of the University of California, Santa Barbara’s campus. It is an inspiring facility and location, and it has taken the hard work of many individuals to make it a reality. At UCSB in the 1980’s and 1990’s, Marine Science facilities could be described as dispersed, inadequate, and not up to the standards of a world class research institution. Long-standing efforts to get a facility approved and built had met with no success. However, things began to change with the identification of a State of California program that provided a financing mechanism for research facilities dedicated to long-term scientific activities. -
ANNUAL REPORT Marine Science Institute UC SANTA BARBARA Table of Contents
2018–2019 ANNUAL REPORT Marine Science Institute UC SANTA BARBARA Table of Contents 3 Mission Statement 4 From the Director Overview 5 Executive Summary 7 10 Organizational Charts Administrative Staff 11 Centers and Units 12 13 MSI Advisory Committee, Administrative & Technical Staff 16 Statistical Summary Research Support Summary 17 Statistical Summary 2018–2019 19 Five-Year Research Support 21 Summary Funding Agencies 22 24 Principal Investigators 30 Postdoctoral Researchers, Graduate and Undergraduate Students 33 Space 39 Other Projects & Activities Coastal Research Center 40 Marine Biotechnology Center 42 Ocean & Coastal Policy Center 52 Analytical Laboratory 54 Education and Outreach 55 56 Awards Administered Awards 57 Research Summaries 66 2 Mission Statement The Marine Science Institute at the University of California, Santa Barbara, is committed to fostering innovative and significant research, to promoting effective stewardship, and to sharing exciting discoveries of the world’s oceans. 3 From the Director 4 Overview The Marine Science Institute (MSI) provides an intellectual and physical environment at UCSB that fosters world-renowned marine research. The institute brings together marine researchers from across the UCSB campus and supports multi-investigator collaborative projects and individual research efforts. The scientific membership at MSI consists of both ladder faculty and professional researchers. In 2018-2019 MSI membership included 25 ladder faculty and 32 professional researchers with 228 additional participants distributed across postdoctoral scholars, graduate students and undergraduates. Beyond research, MSI’s Research Experience and Education Facility (REEF) educates UCSB students and the general public about MSI science. MSI is housed in the marine science research building (MSRB) on the UCSB campus. -
Evaluating Tradeoffs Among Ecosystem Services to Inform Marine Spatial Planning
Evaluating tradeoffs among ecosystem services to inform marine spatial planning Lester, S. E., Costello, C., Halpern, B. S., Gaines, S. D., White, C., & Barth, J. A. (2013). Evaluating tradeoffs among ecosystem services to inform marine spatial planning. Marine Policy, 38, 80-89. doi:10.1016/j.marpol.2012.05.022 10.1016/j.marpol.2012.05.022 Elsevier Accepted Manuscript http://cdss.library.oregonstate.edu/sa-termsofuse 1 Title: Evaluating tradeoffs among ecosystem services to inform marine spatial planning 2 3 Sarah E. Lestera, Christopher Costellob, Benjamin S. Halpernc, Steven D. Gainesd, Crow Whitee, 4 John A. Barthf 5 6 a Marine Science Institute and Bren School of Environmental Science & Management, 7 University of California, Santa Barbara, CA 93106-6150, USA. [email protected] 8 b Bren School of Environmental Science & Management, 4410 Bren Hall, University of 9 California, Santa Barbara, CA 93106, USA. [email protected] 10 c National Center for Ecological Analysis and Synthesis, 735 State Street, Suite 300, Santa 11 Barbara, CA 93101, USA. [email protected] 12 d Bren School of Environmental Science & Management, 4410 Bren Hall, University of 13 California, Santa Barbara, CA 93106, USA. [email protected] 14 e Bren School of Environmental Science & Management, 4410 Bren Hall, University of 15 California, Santa Barbara, CA 93106, USA. [email protected] 16 f College of Oceanic & Atmospheric Sciences, Oregon State University, 104 COAS Admin Bldg, 17 Corvallis, OR 97331, USA. [email protected] 18 19 Corresponding author: 20 Sarah E. Lester 21 Marine Science Institute / Bren School of Environmental Science & Management 22 University of California 23 Santa Barbara, CA 93106-6150, USA 24 Ph: 805.893.5175 25 Fax: 805.893.8062 26 Email: [email protected] 27 28 Running Title: Ecosystem service tradeoffs 1 Ecosystem service tradeoffs 1 Abstract 2 A central challenge for natural resource management is developing rigorous yet practical 3 approaches for balancing the costs and benefits of diverse human uses of ecosystems. -
A Study of the Life History of Microphallus Paragrapsi Smith 1983 (Trematoda : Microphallidae)
Papers and Proceedings of the Royal Society of Tasmania, Volume 122(2), 1988 ll9 A STUDY OF THE LIFE HISTORY OF MICROPHALLUS PARAGRAPSI SMITH 1983 (TREMATODA : MICROPHALLIDAE) by P. J. Bell (with three tables and four text-figures) BELL, P. J., 1988 (31:x): A study of the life history of Microphal/us paragrapsi Smith 1983 (Trematoda : Microphallidae). Pap. Proc. R. Soc. Tasm. 122(2): 119-125. https://doi.org/10.26749/rstpp.122.2.119 ISSN 0080--4703. 43 Waterloo Crescent, Battery Point, Tasmania, Australia 7000; formerly Department of Zoology, University of Tasmania. Metacercariae of the microphallid trematode Microphal/us paragrapsi Smith 1983 were found in the nervous system of the smooth pebble crab Philyra /aevis (Bell 1855). Sporocysts of M. paragrapsi were found in the hepatopancreas of the intertidal gastropod Assiminea hrazieri (Tenison Woods 1876). Under laboratory conditions, cercariae were found to emerge from the snail host and invade the intertidal crab P. laevis, where they subsequently encysted within tbe nerves innervating the legs and claws. Adults of M. paragrapsi were found in the gut of the Pacific gull Larus pacificus (Latham 1801). The life history of M. paragrapsi is very similar to the life history of the related species Microphallus pachygrapsi Deblock & Prevot 1969. Key Words: Microphallus paragrapsi, life-history, microphallid, crab, Tasmania. INTRODUCTION 200 crabs examined throughout the study period, none were infected by M. paragrapsi and only one In 1982, during a study of parasites of the crab was found to be infected with a single cyst of smooth pebble crab Philyra laevis (Bell 1855), the trematode Maritrema eroliae Yamaguti 1939. -
Enriching the Health of Physics Education
Enriching the Health of Physics Education 2008 AAPT Winter Welcome to Baltimore .............. 3 Meeting Acknowledgments .................... 4 Meeting Information ................. 6 Baltimore, MD Contact Information ................. 6 Bus Schedule ............................ 7 About Baltimore ....................... 8 Special Events ......................... 10 January 19–23 Exhibitors ............................... 12 Baltimore Marriott Award Winners & Plenaries ..... 16 Committee Meetings .............. 23 Waterfront Hotel Meeting at a Glance ............... 24 Workshop Abstracts ................ 28 Commercial Workshops .......... 34 SUNDAY Poster Sessions ......... 38 MONDAY Sessions ................. .40 TUESDAY Sessions .................. 66 WEDNESDAY Sessions ............. 84 Index of Participants ................ 90 Index of Advertisers ................ 92 Donors .................................... 93 Maps ...................................... 94 Future Meetings ...................... 96 American Association of Physics Teachers One Physics Ellipse College Park, MD USA 20740-3845 301-209-3300, fax: 301-209-0845 [email protected], www.aapt.org InterActions Makes Its Official Debut at the 2008 Winter Meeting What Is InterActions? – The people, places, programs and policies defining physics teaching and learning – A glimpse Inside the physics education community openforum Synopsis iAmonitor QandA Focal Point ilearn Insight causeeffect endpoint Inside InterActions – human interest in physics Welcome to Baltimore Welcome to the