DOCSLIB.ORG

Cestodes of the Fishes of Otsego Lake and Nearby Waters

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cestodes of the Fishes of Otsego Lake and Nearby Waters Cestodes of the fishes of Otsego Lake and nearby waters Amanda Sendkewitz1, Illari Delgado1, and Florian Reyda2 INTRODUCTION This study of fish cestodes (i.e., tapeworms) is part of a survey of the intestinal parasites of fishes of Otsego Lake and its tributaries (Cooperstown, New York) from 2008 to 2014. The survey included a total of 27 fish species, consisting of six centrarchid species, one ictalurid species, eleven cyprinid species, three percid species, three salmonid species, one catostomid species, one clupeid species, and one esocid species. This is really one of the first studies on cestodes in the area, although one of the first descriptions of cestodes was done on the Proteocephalus species Proteocephalus ambloplitis by Joseph Leidy in Lake George, NY in 1887; it was originally named Taenia ambloplitis. Parasite diversity is a large component of biodiversity, and is often indicative of the health and stature of a particular ecosystem. The presence of parasitic worms in fish of Otsego County, NY has been investigated over the course of a multi-year survey, with the intention of observing, identifying, and recording the diversity of cestode (tapeworm) species present in its many fish species. The majority of the fish species examined harbored cestodes, representing three different orders: Caryophyllidea, Proteocephalidea, and Bothriocephalidea. METHODS The fish utilized in this survey were collected through hook and line, gill net, electroshock, or seining methods throughout the year from 2008-2014. Cestodes were collected in sixteen sites throughout Otsego County. These sites included Beaver Pond at Rum Hill, the Big Pond at Thayer Farm, Canadarago Lake, a pond at College Camp, the Delaware River, Hayden Creek, LaPilusa Pond, Mike Schallart’s Pond in Schenevus, Moe Pond, a pond in Morris, NY, Oaks Creek, Paradise Pond, Shadow Brook, the Susquehanna River, the Wastewater Treatment Wetland (Cooperstown), and of course Otsego Lake. The specimens were then dissected and analyzed at the SUNY Oneonta Biological Field Station. The main organ examined was the intestine. However, other organs such as the stomach, pyloric cecae, heart, liver as well as the body cavity were also examined. Cestode specimens collected were preserved either in 4% neutral-buffered formalin or in 100% ethanol. They were stained with Delafield’s Hematoxylin, dehydrated using a graded ethanol series, mounted in Canada balsam, and preserved as whole mount slides. The parasites were then studied with a light microscope and identified with the aid of a plethora of published scientific literature (i.e., all those listed in the References section). Representative specimens were also photographed with a digital camera. Electron microscopy was also used to aid in the identification of the cestodes. ____________________________ ¹ SUNY Oneonta undergraduate student, Biology Department, SUNY Oneonta 2Assistant Professor of Invertebrate Zoology and Researcher, Biology Department and Biological Field Station, SUNY Oneonta RESULTS Among the fish examined, ~120 of the 400+ fish that were examined were infected with either adult or juvenile cestodes. To date, adult specimens of eight species, representing four genera and three orders of cestodes, were encountered in Otsego Lake or in nearby water bodies. The caryophyllid cestode Glaridacris catostomi (Figure 1) occurred in Catostomus commersoni and in Hypentelium nigricans. At least four species of Proteocephalus were also encountered. Proteocephalus cf ambloplitis (Figure 2) occurred in Micropterus dolomieu, Micropterus salmoides, and A. rupestris. Proteocephalus cf longicollis (Figure 3) occurred in Coregonus clupeaformis. Proteocephalus cf pinguis (Figure 4) occurred in Esox niger. Proteocephalus cf pearsei (Figure 5) occurred in Perca flavescens. Additional specimens of Proteocephalus that were encountered but not identified to species were found in the fish species Lepomis gibbosus, Catostomus commersonii, Coregonus clupeaformis, Salvelinus nemaycush, Cottus cognatus, and Noturus insignis. Each Proteocephalus species had distinctive scolex and bothrial features in combination with features of the strobila, but preliminary morphological examinations did not enable species-specific identification, owing to the lack of adequately mature specimens and the limitations in the reference taxonomic literature. Hence, the “cf” designation was given for each of the three Proteocephalus species encountered. The bothriocephalid cestode Bothriocephalus cuspidatus (Figure 6) occurred in Perca flavescens and in Sander vitreus. Another bothriocephalid cestode, Bothriocephalus acheilognathi (Figure 7), was found in Semotilus atromaculatus and in Notemigonus crysoleucas in a beaver pond at the base of Rum Hill. Additional specimens of Bothriocephalus that were not identified to species–i.e., they may or may not be conspecific with those mentioned above–were found in Micropterus salmoides, Lepomis gibbosus, Lepomis macrochirus, Ambloplites rupestris, Perca flavescens and Notropis heterodon. These specimens were limited in number and were generally not sexually mature, precluding specific identifications. Finally, a species of Eubothrium was found in Salvelinus nemaycush, but additional specimens of that taxon are needed to make a specific identification possible. The juvenile cestodes encountered represented two genera of different cestode orders, Proteocephalus and Bothriocephalus. Unknown cestodes awaiting identification were also found in Ameiurus nebulosus, and Pimephales promelas. DISCUSSION Out of all the parasitic worms encountered during the survey, the cestodes were observed the least frequently. Among those cestodes encountered, many were sexually immature. This is a problem because it limited our ability to make firm identifications. For example, our identifications of the species of Proteocephalus encountered in this survey were based on scolex morphology. Fully confirmed identifications would, however, require us to examine proglottid morphology in addition to scolex morphology. This was not an option owing to the generally lack of sexually mature specimens. In this study, species of Proteocephalus were therefore only tentatively identified to species, hence designated “cf”. This abbreviation is for the Latin word “confer”, meaning compare to the form in this taxonomic context. More work is needed to properly identify the species. Another limitation with identifying species of Proteocephalus is a lack of complete and useful reference in the taxonomic literature. At least two species of Bothriocephalus were observed in this study, Bothriocephalus cuspidatus and Bothriocephalus achelognathi. The latter of the two is an invasive species of tapeworm, it was only found in one pond however, this finding is a first for New York state; B. cuspidatus has previously only been reported elsewhere in North America. Additional specimens of the species of Eubothrium that was encountered in Lake trout are needed to identify that tapeworm to species. CONCLUSION Furthering our understanding of the cestode species of Otsego Lake and nearby water bodies will require the collection of additional specimens of Proteocephalus and Eubothrium that are sexually mature, to facilitate specific identifications. ACKNOWLEDGMENTS We would like to thank the students of Dr. Reyda’s Lab, the numerous summer interns from SUNY Oneonta, Steve Stowell, (SUNY Cobleskill) and Tim Pokorny (NYS DEC), for their help in fish and snail collections. We thank Anindo Choudhury (St. Norbert College) for his helpful comment on species identifications. Funding for this research was provided in part an NSF FSML grant to W. Harman (DBI 1034744). Also, special thanks to Dr. Bill Harman, Matt Albright, and Holly Waterfield of the Biological Field Station, and Dr. Janine Caira of the University of Connecticut. SUNY Biological Field Station provided the necessary equipment and work space to carry out this project. This work was done as an independent study by A.S. and I.D. over the course of three semesters. REFERENCES Andersen, K. 1979. Studies on the Scolex Morphology of Eubothrium spp. with emphasis on Characters Usable in the Species Discrimination and with Brief References on the Scolices of Bothriocephalus sp. And Triaenophorus spp. (Cestoda; Pseudophyllidea). Z. Parasitenkd. 60:147-156. Hanzelová, V., T. Scholz, D. Gerdeaux and R. Kuchta. 2002. A comparative study of Eubothrium salvelini and E. crassum (Cestoda: Pseudophyllidea) parasites of Artic char and brown trout in alpine lakes. Environmental Biology of Fishes. 64:245-256. Kuchta, R., T. Scholz, J. Brabec and R.A. Bray. 2008. Suppression of the tapeworm order Pseudophyllidea (Platyhelminthes: Eucestoda) and the proposal of two new orders, Bothriocephalidea and Diphyllobothriidea. International Journal for Parasitology. 38:49- 55. Mackiewicz, J.S. 1965. Redescription and Distribution of Glaridacris catostomi Cooper, 1920 (Cestoidea: Caryophyllaeidae)." Journal of Parasitology. 51(4): 554-560. Scholz, T. 1997. “A revision of the species of Bothriocephalus Rudolphi, 1808 (Cestoda: Pseudophyllidea) parasitic in American freshwater fishes. Systematic Parasitology. 36: 85-107. Scholz, T. and A. de Chambrier. 2003. “Taxonomy and biology of proteocephalidean cestodes: current state and perspectives.” Helmnithologia. 40(2): 65-77. .
Load more

Recommended publications
  • BIO 475 - Parasitology Spring 2009 Stephen M
    BIO 475 - Parasitology Spring 2009 Stephen M. Shuster Northern Arizona University http://www4.nau.edu/isopod Lecture 12 Platyhelminth Systematics-New Euplatyhelminthes Superclass Acoelomorpha a. Simple pharynx, no gut. b. Usually free-living in marine sands. 3. Also parasitic/commensal on echinoderms. 1 Euplatyhelminthes 2. Superclass Rhabditophora - with rhabdites Euplatyhelminthes 2. Superclass Rhabditophora - with rhabdites a. Class Rhabdocoela 1. Rod shaped gut (hence the name) 2. Often endosymbiotic with Crustacea or other invertebrates. Euplatyhelminthes 3. Example: Syndesmis a. Lives in gut of sea urchins, entirely on protozoa. 2 Euplatyhelminthes Class Temnocephalida a. Temnocephala 1. Ectoparasitic on crayfish 5. Class Tricladida a. like planarians b. Bdelloura 1. live in gills of Limulus Class Temnocephalida 4. Life cycles are poorly known. a. Seem to have slightly increased reproductive capacity. b. Retain many morphological characters that permit free-living existence. Euplatyhelminth Systematics 3 Parasitic Platyhelminthes Old Scheme Characters: 1. Tegumental cell extensions 2. Prohaptor 3. Opisthaptor Superclass Neodermata a. Loss of characters associated with free-living existence. 1. Ciliated larval epidermis, adult epidermis is syncitial. Superclass Neodermata b. Major Classes - will consider each in detail: 1. Class Trematoda a. Subclass Aspidobothrea b. Subclass Digenea 2. Class Monogenea 3. Class Cestoidea 4 Euplatyhelminth Systematics Euplatyhelminth Systematics Class Cestoidea Two Subclasses: a. Subclass Cestodaria 1. Order Gyrocotylidea 2. Order Amphilinidea b. Subclass Eucestoda 5 Euplatyhelminth Systematics Parasitic Flatworms a. Relative abundance related to variety of parasitic habitats. b. Evidence that such characters lead to great speciation c. isolated populations, unique selective environments. Parasitic Flatworms d. Also, very good organisms for examination of: 1. Complex life cycles; selection favoring them 2.
    [Show full text]
  • Eucestoda: Tetraphyllidea
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications from the Harold W. Manter Laboratory of Parasitology Parasitology, Harold W. Manter Laboratory of 6-1988 Rhinebothrium devaneyi n. sp. (Eucestoda: Tetraphyllidea) and Echinocephalus overstreeti Deardorff and Ko, 1983 (Nematoda: Gnathostomatidae) in a Thorny Back Ray, Urogymnus asperrimus, from Enewetak Atoll, with Phylogenetic Analysis of Both Species Groups Daniel R. Brooks University of Toronto, [email protected] Thomas L. Deardorff United States Food and Drug Administration Follow this and additional works at: https://digitalcommons.unl.edu/parasitologyfacpubs Part of the Parasitology Commons Brooks, Daniel R. and Deardorff, Thomas L., "Rhinebothrium devaneyi n. sp. (Eucestoda: Tetraphyllidea) and Echinocephalus overstreeti Deardorff and Ko, 1983 (Nematoda: Gnathostomatidae) in a Thorny Back Ray, Urogymnus asperrimus, from Enewetak Atoll, with Phylogenetic Analysis of Both Species Groups" (1988). Faculty Publications from the Harold W. Manter Laboratory of Parasitology. 240. https://digitalcommons.unl.edu/parasitologyfacpubs/240 This Article is brought to you for free and open access by the Parasitology, Harold W. Manter Laboratory of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Faculty Publications from the Harold W. Manter Laboratory of Parasitology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. J. Parasit., 74(3), 1988, pp. 459-465 ? American Society
    [Show full text]
  • Applied Zoology
    Animal Diversity- I (Non-Chordates) Phylum Platyhelminthes Ranjana Saxena Associate Professor, Department of Zoology, Dyal Singh College, University of Delhi Delhi – 110 007 e-mail: [email protected] Contents: PLATYHELMINTHES DUGESIA (EUPLANARIA) Fasciola hepatica SCHISTOSOMA OR SPLIT BODY Schistosoma japonicum Diphyllobothrium latum Echinococcus granulosus EVOLUTION OF PARASITISM IN HELMINTHES PARASITIC ADAPTATION IN HELMINTHES CLASSIFICATION Class Turbellaria Class Monogenea Class Trematoda Class Cestoda PLATYHELMINTHES IN GREEK:PLATYS means FLAT; HELMINTHES means WORM The term platyhelminthes was first proposed by Gaugenbaur in 1859 and include all flatworms. They are soft bodied, unsegmented, dorsoventrally flattened worms having a bilateral symmetry, with organ grade of organization. Flatworms are acoelomate and triploblastic. The majority of these are parasitic. The free living forms are generally aquatic, either marine or fresh water. Digestive system is either absent or incomplete with a single opening- the mouth, anus is absent. Circulatory, respiratory and skeletal system are absent. Excretion and osmoregulation is brought about by protonephridia or flame cells. Ammonia is the chief excretory waste product. Nervous system is of the primitive type having a pair of cerebral ganglia and longitudinal nerves connected by transverse commissures. Sense organs are poorly developed, present only in the free living forms. Basically hermaphrodite with a complex reproductive system. Development is either direct or indirect with one or more larval stages. Flatworms have a remarkable power of regeneration. The phylum includes about 13,000 species. Here Dugesia and Fasciola hepatica will be described as the type study to understand the phylum. Some of the medically important parasitic helminthes will also be discussed. Evolution of parasitism and parasitic adaptations is of utmost importance for the endoparasitic platyhelminthes and will also be discussed here.
    [Show full text]
  • Luth Wfu 0248D 10922.Pdf
    SCALE-DEPENDENT VARIATION IN MOLECULAR AND ECOLOGICAL PATTERNS OF INFECTION FOR ENDOHELMINTHS FROM CENTRARCHID FISHES BY KYLE E. LUTH A Dissertation Submitted to the Graduate Faculty of WAKE FOREST UNIVERSITY GRADAUTE SCHOOL OF ARTS AND SCIENCES in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY Biology May 2016 Winston-Salem, North Carolina Approved By: Gerald W. Esch, Ph.D., Advisor Michael V. K. Sukhdeo, Ph.D., Chair T. Michael Anderson, Ph.D. Herman E. Eure, Ph.D. Erik C. Johnson, Ph.D. Clifford W. Zeyl, Ph.D. ACKNOWLEDGEMENTS First and foremost, I would like to thank my PI, Dr. Gerald Esch, for all of the insight, all of the discussions, all of the critiques (not criticisms) of my works, and for the rides to campus when the North Carolina weather decided to drop rain on my stubborn head. The numerous lively debates, exchanges of ideas, voicing of opinions (whether solicited or not), and unerring support, even in the face of my somewhat atypical balance of service work and dissertation work, will not soon be forgotten. I would also like to acknowledge and thank the former Master, and now Doctor, Michael Zimmermann; friend, lab mate, and collecting trip shotgun rider extraordinaire. Although his need of SPF 100 sunscreen often put our collecting trips over budget, I could not have asked for a more enjoyable, easy-going, and hard-working person to spend nearly 2 months and 25,000 miles of fishing filled days and raccoon, gnat, and entrail-filled nights. You are a welcome camping guest any time, especially if you do as good of a job attracting scorpions and ants to yourself (and away from me) as you did on our trips.
    [Show full text]
  • 1 Curriculum Vitae Stephen S. Curran, Ph.D. Department of Coastal
    Curriculum vitae Stephen S. Curran, Ph.D. Department of Coastal Sciences The University of Southern Mississippi Gulf Coast Research Laboratory 703 East Beach Drive Phone: (228) 238-0208 Ocean Springs, MS 39564 Email: [email protected] Research and Teaching Interests: I am an organismal biologist interested in the biodiversity of metazoan parasitic animals. I study their taxonomy using traditional microscopic and histological techniques and their genetic interrelationships and systematics using ribosomal DNA sequences. I also investigate the effects of extrinsic factors on aquatic environments by using parasite prevalence and abundance as a proxy for total biodiversity in aquatic communities and for assessing food web dynamics. I am also interested in the epidemiology of viral diseases of crustaceans. University Teaching Experience: •Instructor for Parasites of Marine Animals Summer class, University of Southern Mississippi, Gulf Coast Research Laboratory (2011-present). •Co-Instructor (with Richard Heard) for Marine Invertebrate Zoology, University of Southern Mississippi, Gulf Coast Research Laboratory (2007). •Intern Mentor, Gulf Coast Research Laboratory. I’ve instructed 16 interns during (2003, 2007- present). •Graduate Teaching Assistant for Animal Parasitology, Department of Ecology and Evolutionary Biology, University of Connecticut (Spring 1995). •Graduate Teaching Assistant for Introductory Biology for Majors, Department of Ecology and Evolutionary Biology, University of Connecticut (Fall 1994). Positions: •Assistant Research
    [Show full text]
  • Clinical Cysticercosis: Diagnosis and Treatment 11 2
    WHO/FAO/OIE Guidelines for the surveillance, prevention and control of taeniosis/cysticercosis Editor: K.D. Murrell Associate Editors: P. Dorny A. Flisser S. Geerts N.C. Kyvsgaard D.P. McManus T.E. Nash Z.S. Pawlowski • Etiology • Taeniosis in humans • Cysticercosis in animals and humans • Biology and systematics • Epidemiology and geographical distribution • Diagnosis and treatment in humans • Detection in cattle and swine • Surveillance • Prevention • Control • Methods All OIE (World Organisation for Animal Health) publications are protected by international copyright law. Extracts may be copied, reproduced, translated, adapted or published in journals, documents, books, electronic media and any other medium destined for the public, for information, educational or commercial purposes, provided prior written permission has been granted by the OIE. The designations and denominations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the OIE concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers and boundaries. The views expressed in signed articles are solely the responsibility of the authors. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by the OIE in preference to others of a similar nature that are not mentioned. –––––––––– The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations, the World Health Organization or the World Organisation for Animal Health concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
    [Show full text]
  • Helminth Parasites (Trematoda, Cestoda, Nematoda, Acanthocephala) of Herpetofauna from Southeastern Oklahoma: New Host and Geographic Records
    125 Helminth Parasites (Trematoda, Cestoda, Nematoda, Acanthocephala) of Herpetofauna from Southeastern Oklahoma: New Host and Geographic Records Chris T. McAllister Science and Mathematics Division, Eastern Oklahoma State College, Idabel, OK 74745 Charles R. Bursey Department of Biology, Pennsylvania State University-Shenango, Sharon, PA 16146 Matthew B. Connior Life Sciences, Northwest Arkansas Community College, Bentonville, AR 72712 Abstract: Between May 2013 and September 2015, two amphibian and eight reptilian species/ subspecies were collected from Atoka (n = 1) and McCurtain (n = 31) counties, Oklahoma, and examined for helminth parasites. Twelve helminths, including a monogenean, six digeneans, a cestode, three nematodes and two acanthocephalans was found to be infecting these hosts. We document nine new host and three new distributional records for these helminths. Although we provide new records, additional surveys are needed for some of the 257 species of amphibians and reptiles of the state, particularly those in the western and panhandle regions who remain to be examined for helminths. ©2015 Oklahoma Academy of Science Introduction Methods In the last two decades, several papers from Between May 2013 and September 2015, our laboratories have appeared in the literature 11 Sequoyah slimy salamander (Plethodon that has helped increase our knowledge of sequoyah), nine Blanchard’s cricket frog the helminth parasites of Oklahoma’s diverse (Acris blanchardii), two eastern cooter herpetofauna (McAllister and Bursey 2004, (Pseudemys concinna concinna), two common 2007, 2012; McAllister et al. 1995, 2002, snapping turtle (Chelydra serpentina), two 2005, 2010, 2011, 2013, 2014a, b, c; Bonett Mississippi mud turtle (Kinosternon subrubrum et al. 2011). However, there still remains a hippocrepis), two western cottonmouth lack of information on helminths of some of (Agkistrodon piscivorus leucostoma), one the 257 species of amphibians and reptiles southern black racer (Coluber constrictor of the state (Sievert and Sievert 2011).
    [Show full text]
  • Broad Tapeworms (Diphyllobothriidae)
    IJP: Parasites and Wildlife 9 (2019) 359–369 Contents lists available at ScienceDirect IJP: Parasites and Wildlife journal homepage: www.elsevier.com/locate/ijppaw Broad tapeworms (Diphyllobothriidae), parasites of wildlife and humans: T Recent progress and future challenges ∗ Tomáš Scholza, ,1, Roman Kuchtaa,1, Jan Brabeca,b a Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, České Budějovice, Czech Republic b Natural History Museum of Geneva, PO Box 6434, CH-1211, Geneva 6, Switzerland ABSTRACT Tapeworms of the family Diphyllobothriidae, commonly known as broad tapeworms, are predominantly large-bodied parasites of wildlife capable of infecting humans as their natural or accidental host. Diphyllobothriosis caused by adults of the genera Dibothriocephalus, Adenocephalus and Diphyllobothrium is usually not a life-threatening disease. Sparganosis, in contrast, is caused by larvae (plerocercoids) of species of Spirometra and can have serious health consequences, exceptionally leading to host's death in the case of generalised sparganosis caused by ‘Sparganum proliferum’. While most of the definitive wildlife hosts of broad tapeworms are recruited from marine and terrestrial mammal taxa (mainly carnivores and cetaceans), only a few diphyllobothriideans mature in fish-eating birds. In this review, we provide an overview the recent progress in our understanding of the diversity, phylogenetic relationships and distribution of broad tapeworms achieved over the last decade and outline the prospects of future research. The multigene family-wide phylogeny of the order published in 2017 allowed to propose an updated classi- fication of the group, including new generic assignment of the most important causative agents of human diphyllobothriosis, i.e., Dibothriocephalus latus and D.
    [Show full text]
  • Species Diversity of Rhinebothrium Linton, 1890 (Eucestoda
    Zootaxa 4300 (1): 421–437 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2017 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4300.3.5 http://zoobank.org/urn:lsid:zoobank.org:pub:EE5688F1-3235-486C-B981-CBABE462E8A2 Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species BRUNA TREVISAN1,2 & FERNANDO P. L. MARQUES1 1Laboratório de Helmintologia Evolutiva, Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 101, travessa 14, Cidade Universitária, São Paulo, SP, 05508-090 2Corresponding author. E-mail: [email protected] Abstract The present study contributes to the knowledge of the cestode fauna of species of Styracura de Carvalho, Loboda & da Silva, which is the putative sister taxon of freshwater potamotrygonids—a unique group of batoids restricted to Neotro- pical freshwater systems. We document species of Rhinebothrium Linton, 1890 as a result of the examination of newly collected specimens of Styracura from five different localities representing the eastern Pacific Ocean and the Caribbean Sea. Overall, we examined 33 spiral intestines, 11 from the eastern Pacific species Styracura pacifica (Beebe & Tee-Van) and 22 from the Caribbean species S. schmardae (Werner). However, only samples from the Caribbean were infected with members of Rhinebothrium. Rhinebothrium tetralobatum Brooks, 1977, originally described from S. schmardae—as Hi- mantura schmardae (Werner)—off the Caribbean coast of Colombia based on six specimens is redescribed. This rede- scription provides the first data on the microthriches pattern, more details of internal anatomy (i.e., inclusion of histological sections) and expands the ranges for the counts and measurements of several features.
    [Show full text]
  • Reporting a New Caryophyllidean Worm from a Freshwater Clarias Batrachus
    © 2020 JETIR October 2020, Volume 7, Issue 10 www.jetir.org (ISSN-2349-5162) REPORTING A NEW CARYOPHYLLIDEAN WORM FROM A FRESHWATER CLARIAS BATRACHUS 1Khushal Bhavsar, 2Avinash Bhangale and 3Ajit Kalse, 1Researcher, 2Associate Professor, & 3Professor Helminth Research Laboratory, P.G. Department of Zoology, Nanasaheb Y. N. Chavan ASC College, Chalisgaon Dist. Jalgaon-424101, (M.S.) Abstract: Present study deals with reporting of a Caryophyllidean tapeworm Lytocestus sahayi n. sp. collected from intestine of freshwater catfish Clarias batrachus (Linneus, 1758) from Mundkhede Dam near Chalisgaon (M.S.) India. Worm comes closer to all known species of the genus Lytocestus, in general topography of organs, but differs due to long head, tapering anteriorly, well-marked off from body. Testes oval to rounded, 500- 530 in number, unevenly distributed. Cirrus pouch large, oval, preovarian, vertically placed, cirrus thin, straight, vas deferens short, thin, coiled. Ootype is small, oval. Vagina long, thin tube, coiled. Ovary bilobed, ‘Butterfly’ shaped, with 25-28 ovarian follicles, situated in posterior region of the worm. Eggs are oval, operculated. Vitellaria are granular, arranged in two rows. Index Terms- Cestode, Clarias batrachus, Lytocestus, Mundkhede. INTRODUCTION Cohn, 1908 erected the genus Lytocestus with its type species L. adhaerens from edible cat fish Clarias fuscus at HongKong. This genus was first confirmed by Woodland, 1926 that included four more species in addition to the type species. They are L. filiformis Woodland, 1923 in Mormyrus caschive, Egyptian Sudan; L. chalmersius Woodland, 1924; L. cunningtoni Fuhrmann and Baer, 1925 and L. indicus Moghe, 1925 (Syn. Caryophyllaeces indicus) from Clarias batrachus in India. Later, Hunter, 1927 placed the genus in subfamily of its own, viz.
    [Show full text]
  • Checklists of Parasites of Fishes of Salah Al-Din Province, Iraq
    Vol. 2 (2): 180-218, 2018 Checklists of Parasites of Fishes of Salah Al-Din Province, Iraq Furhan T. Mhaisen1*, Kefah N. Abdul-Ameer2 & Zeyad K. Hamdan3 1Tegnervägen 6B, 641 36 Katrineholm, Sweden 2Department of Biology, College of Education for Pure Science, University of Baghdad, Iraq 3Department of Biology, College of Education for Pure Science, University of Tikrit, Iraq *Corresponding author: [email protected] Abstract: Literature reviews of reports concerning the parasitic fauna of fishes of Salah Al-Din province, Iraq till the end of 2017 showed that a total of 115 parasite species are so far known from 25 valid fish species investigated for parasitic infections. The parasitic fauna included two myzozoans, one choanozoan, seven ciliophorans, 24 myxozoans, eight trematodes, 34 monogeneans, 12 cestodes, 11 nematodes, five acanthocephalans, two annelids and nine crustaceans. The infection with some trematodes and nematodes occurred with larval stages, while the remaining infections were either with trophozoites or adult parasites. Among the inspected fishes, Cyprinion macrostomum was infected with the highest number of parasite species (29 parasite species), followed by Carasobarbus luteus (26 species) and Arabibarbus grypus (22 species) while six fish species (Alburnus caeruleus, A. sellal, Barbus lacerta, Cyprinion kais, Hemigrammocapoeta elegans and Mastacembelus mastacembelus) were infected with only one parasite species each. The myxozoan Myxobolus oviformis was the commonest parasite species as it was reported from 10 fish species, followed by both the myxozoan M. pfeifferi and the trematode Ascocotyle coleostoma which were reported from eight fish host species each and then by both the cestode Schyzocotyle acheilognathi and the nematode Contracaecum sp.
    [Show full text]
  • (Schyzocotyle Acheilognathi) from an Endemic Cichlid Fish In
    ©2018 Institute of Parasitology, SAS, Košice DOI 10.1515/helm-2017-0052 HELMINTHOLOGIA, 55, 1: 84 – 87, 2018 Research Note The fi rst record of the invasive Asian fi sh tapeworm (Schyzocotyle acheilognathi) from an endemic cichlid fi sh in Madagascar T. SCHOLZ1,*, A. ŠIMKOVÁ2, J. RASAMY RAZANABOLANA3, R. KUCHTA1 1Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic, E-mail: *[email protected]; [email protected]; 2Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic, E-mail: [email protected]; 3Department of Animal Biology, Faculty of Science, University of Antananarivo, BP 906 Antananarivo 101, Madagascar, E-mail: [email protected] Article info Summary Received August 8, 2017 The Asian fi sh tapeworm, Schyzocotyle acheilognathi (Yamaguti, 1934) (Cestoda: Bothriocepha- Accepted September 21, 2017 lidea), is an invasive parasite of freshwater fi shes that have been reported from more than 200 fresh- water fi sh worldwide. It was originally described from a small cyprinid, Acheilognathus rombeus, in Japan but then has spread, usually with carp, minnows or guppies, to all continents including isolated islands such as Hawaii, Puerto Rico, Cuba or Sri Lanka. In the present account, we report the fi rst case of the infection of a native cichlid fi sh, Ptychochromis cf. inornatus (Perciformes: Cichlidae), endemic to Madagascar, with S. acheilognathi. The way of introduction of this parasite to the island, which is one of the world’s biodiversity hotspots, is briefl y discussed. Keywords: Invasive parasite; new geographical record; Cestoda; Cichlidae; Madagascar Introduction fi sh tapeworm, Schyzocotyle acheilognathi (Yamaguti, 1934) (syn.
    [Show full text]