DOCSLIB.ORG

Cestoda: Proteocephalidea) and Redescription of R

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cestoda: Proteocephalidea) and Redescription of R Ahead of print online version FOLIA PARASITOLOGICA 58[4]: 279–288, 2011 © Institute of Parasitology, Biology Centre ASCR ISSN 0015-5683 (print), ISSN 1803-6465 (online) http://www.paru.cas.cz/folia/ Ritacestus gen. n. (Cestoda: Proteocephalidea) and redescription of R. ritaii comb. n., a parasite of Rita rita (Siluriformes) in India Alain de Chambrier1, Tomáš Scholz2, Anirban Ash2 and Pradip Kumar Kar3 1 Department of Invertebrates, Natural History Museum, P.O. Box 6434, CH-1211 Geneva 6, Switzerland; 2 Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic & Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic; 3 Jhargram Raj College, Jhargram, Paschim Medinipur, West Bengal 721507, India Abstract: A new genus, Ritacestus, is proposed to accommodate Ritacestus ritaii (Verma, 1926) comb. n. (syn. Proteocephalus ritaii), a parasite of the catfish Rita rita (Hamilton) in India. The new genus, which is placed in the Gangesiinae, is characterized by (i) a small, subspherical scolex formed by four large lobes separated from one another by longitudinal grooves, with a large, widely oval to pyriform rostellum-like apical organ, larger than suckers and possessing an apical hemispherical depression; (ii) paramus- cular and cortical position of some vitelline follicles (most follicles are situated medullary); (iii) ventral and dorsal bands of vitel- line follicles usually uninterrupted ventral to terminal genitalia and reaching to the posterior margin of proglottides; (iv) the vagina always anterior to the cirrus-sac; (v) a large size of the body (length up to 51 cm); and (vi) development of the uterus of type 2. In its morphology, especially shape of the scolex and apical organ, and paramuscular and cortical position of some vitelline follicles, Ritacestus resembles Postgangesia Akhmerov, 1969, but differs in the presence of a genital atrium (both genital pores of Postgan- gesia are separate), the anterior position of the vagina (almost always posterior in the latter genus), position of vitelline follicles in cross sections (dorsal and ventral bands in Ritacestus versus only a lateral band in the latter genus), and dorsal excretory canals indistinguishable in mature and gravid proglottides of R. ritaii (well developed in Postgangesia spp.). The type and only species of the genus, R. ritaii, is redescribed on the basis of new material from the type host from the Ganges River basin in India and its neotype is designated. Keywords: morphology, taxonomy, neotype, Eucestoda, Gangesiinae, freshwater fish, Ganges River, India A high number of tapeworms (Cestoda) of three orders especially those from other zoogeographical regions such (Caryophyllidea, Bothriocephalidea and Proteocephali- as the Neotropical, Ethiopian and Indomalayan regions, dea) have been described from freshwater fish in the In- actually do not belong to Proteocephalus sensu stricto domalayan Region, with a great majority of them being (= Proteocephalus aggregate of de Chambrier et al., 2004) based on material collected in India (for lists of species, and should be placed in other genera. see Mackiewicz 1981, Schmidt 1986, Hafeezullah 1993, In this paper, one of these species, Proteocephalus rit- Kuchta and Scholz 2007, Ash et al. 2011). Two cestode aii Verma, 1926, a parasite of the catfish Rita rita (Ham- species have been placed in Proteocephalus Weinland, ilton, 1822) (Siluriformes: Bagridae) in India, is rede- 1858, namely P. ritaii Verma, 1926 and P. vitellaris (Ver- scribed on the basis of new material from the type host ma, 1928) (syn. Ichthyotaenia vitellaris Verma, 1928) (type specimens could not be located) and a new genus is (Verma 1926, 1928), but recent studies have provided evi- proposed to accommodate it. dence that this genus represents an artificial assemblage of morphologically dissimilar and phylogenetically unre- MATERIALS AND METHODS lated taxa (de Chambrier et al. 2004a, Hypša et al. 2005). The present study is based on morphological evaluation of Therefore, de Chambrier et al. (2004a) proposed the cestodes collected by the present authors from the intestine of Proteocephalus aggregate to accommodate species para- Rita rita in two localities of West Bengal, India: (i) 12 whole- mounts of three adult specimens (one without scolex) and sitic in the Holarctic freshwater fish that share similar 29 slides with cross sections from the Pagla River at Kaliachak morphology (see Scholz and Hanzelová 1998) and form near Malda (English Bazar – 24°51.65′N; 88°01.08′E), West monophyletic clade (de Chambrier et al. 2004a, Hypša et Bengal, March 2 and 3, 2009, deposited in the Natural History al. 2005, Scholz et al. 2007). The remaining species of the Museum, Collection of Invertebrates, Geneva, Switzerland (ac- Proteocephalus complex (= Proteocephalus sensu lato), ronym INVE), field numbers IND 66 (INVE 63249), 67 (INVE Address for correspondence: T. Scholz, Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic. Phone: +420 38 53 10 351; Fax: +420 38 5310388; E-mail: [email protected] 279 Ahead of print online version 63242) and 132 (INVE 78786 and The Natural History Muse- testes in anterior third of proglottides. Genital pores irreg- um, London, UK; acronym BMNH – 2011.5.16.5); (ii) whole- ularly alternating, slightly pre-equatorial. Genital atrium mounts of three adult specimens (one used for scanning electron present. Ovary follicular, bilobed, with wide lateral lobes. microscopy – SEM) and two slides with longitudinal sections Vagina anterior to cirrus-sac, with weakly developed of the scolex from the Pagla River at Kaliachak, West Bengal, circular vaginal sphincter. Vitelline follicles arranged in March 11, 13 and 27, 2011, field numbers IND 580 (INVE paired (ventral and dorsal) lateral bands from anterior to 78788), 684 (INVE 78789) and 909 (used for SEM); (iii) four whole-mounts of an adult specimen (without scolex) from the posterior margin of proglottides, usually uninterrupted at Ganges River at Farakka dam lake near Malda (24°49.32′N; level of terminal genitalia. Uterine development of type 87°56.49′E), March 4, 2009, field number 145 (Institute of Para- 2 according to de Chambrier et al. (2004a), with well- sitology, BC AS CR, České Budějovice, Czech Republic – acro- developed uterine glands (chromophilic cells) alongside nym IPCAS C-603 and INVE 63240). uterine stem and diverticula. Type and only species: Rita- Cestodes collected by the present authors from fresh hosts cestus ritaii (Verma, 1926) comb. n. were ���������������������������������������������������������isolated from the intestine, rinsed in saline and immedi- E t y m o l o g y : The generic names is composed of the host ately fixed with hot (almost boiling) 4% formaldehyde solution name (“Rita”) and suffix “-cestus”, which means a tape- (formalin), with pieces of several worms placed before in 99% worm; generic name should be treated as masculine. molecular grade ethanol for DNA analysis. The specimens used for morphological observations were then stained with Mayer’s Differential diagnosis: The new genus is placed in the hydrochloric carmine solution, dehydrated in a graded ethanol Gangesiinae because of the presence of a large, rostellum- series, cleared with eugenol (clove oil), and mounted in Canada like apical organ connected with the neck region by re- balsam. Pieces of strobila and one scolex were embedded in par- tractor muscles, presence of vitelline follicles up to the affin wax, sectioned at 12–15 µm (cross sections of the strobila posterior margin of proglottides, and medullary position and longitudinal sections of the scolex), stained with Weigert’s of genital organs (testes, ovary, uterus and most vitelline haematoxylin and counterstained with 1% eosin B with 1 drop follicles), with some vitelline follicles paramuscular and of acetic acid/100 ml of solution (de Chambrier 2001). Tech- cortical (see de Chambrier et al. 2003). nique of preparation of samples for SEM follows that described The genus is characterized by combination of the by Oros et al. (2010), whereas microthrix terminology follows that proposed by Chervy (2009). Eggs fixed with hot formalin following morphological characteristics (Figs. 1–23): together with worms for morphological study (see above) were (i) a subspherical scolex with a large, widely oval to py- studied in distilled water. riform rostellum-like apical organ with glandular content and with an apical hemispherical depression; apical or- RESULTS gan larger than spherical suckers situated on large lobes separated from one another by four longitudinal grooves; Examination of newly collected material of Proteo- (ii) position of vitelline follicles, most of which are situat- cephalus ritaii from the type host has revealed several ed in the medulla, but some are paramuscular and cortical; morphological characteristics, in which this species (iii) presence of paired (ventral and dorsal) bands of vitel- differs from all remaining congeneric taxa (species of line follicles, usually uninterrupted ventral to the terminal Proteocephalus sensu stricto), but also from other pro- genitalia, reaching to the posterior margin of proglottides; teocephalideans. To reflect a unique morphology of Pro- (iv) anterior position of the terminal part of the vaginal teocephalus ritaii, a new genus, Ritacestus, is proposed canal in relation to the cirrus-sac; and (v) uterine develop- to
Load more

Recommended publications
  • STUDY on “FISH Mums Or LAKE MANITGU, MICHIGAN 9 .. F "
    rwsés' - ' . on... .09”.~. ‘09”- . ‘ . '.'.'.'-'-’ .°.‘/ ch'.‘ o'c’ - o to. o a u ' 0-0~.. 3‘. OI .' .‘? - ' ..‘_.‘ ..'. .‘ - STUDY ON “FISH Mums or LAKE MANITGU, MICHIGAN 9 .. f " “ff."‘h‘ WITH SPECIAL REFERENCE- TO INFESTATION op. - ' "1-1? SMALLMOUTH ”BASS, BY THE; BASS TAPEWORM, "1' PROTEIOCEW. AMBLOPLITIS (LEIbY‘). f Thesis for the Degree of M. S. MICHIGAN STATE UNIVERSITY Pram Shankar Prasad 1963 ~“- w IIUL 1.1 3 8 02 2832 )\ ‘II Lh" Us F' ABSTRACT STUDY ON FISH PARASITE OF LAKE MANITOU, MICHIGAN WITH SPECIAL REFERENCE TO INFESTATION OF SMALLMOUTH BASS BY THE BASS TAPEWORM, PROTEOCEPHALUS AMBLOPLITIS (LEIDY) by Prem Shankar Prasad This is a report of an investigation of the degree of infestation of smallmouth bass of Lake Manitou, Michigan, by the bass tapeworm, Proteocephalus amblgplitis, and the extent of host tissue damage. A sample of 42 fishes was examined in this study Which was represented by 36 small- mouth bass, five yellow perch, and one green sunfish. Al- together, nine different species of helminth parasites from the three phyla were recovered. The larval stage of the bass tapeworm (plerocercoids) were present in all the 42 fishes examined and were found to be most damaging. The extent of damage is greater in the females than in the males of the same age group. A study on larval lengths revealed that gonads, especially the ovaries, are better suited for the growth of these larvae. As the fish advance in age the larvae in the gonads also increase in length. The rate of growth of larvae is approximately three times greater in Prem Shankar Prasad the females than in the males.
    [Show full text]
  • Food and Feeding Habit of the Critically Endangered Catfish Rita Rita (Hamilton) from the Padda River in the North-Western Region of Bangladesh
    International Journal of Advancements in Research & Technology, Volume 2, Issue 1, January-2013 ISSN 2278-7763 Food and feeding habit of the critically endangered catfish Rita rita (Hamilton) from the Padda river in the north-western region of Bangladesh Syeda Mushahida-Al-Noor1*, Md. Abdus Samad1 and N.I.M. Abdus Salam Bhuiyan2 1Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi 6205, Bangladesh. 2Department of Zoology, Faculty of Life and Earth, University of Rajshahi, Rajshahi 6205, Bangladesh. *E-mail: [email protected] ABSTRACT Food and feeding habits of Rita rita collected from the Padda river in the north-western region of Bangladesh were investigated by examining the gastro-intestine contents of 744 specimens collected from May, 2010 to April, 2011. Their diet consisted of a broad spectrum of food types but crustaceans were dominant, with copepodes constituting 20.73%, other non-copepode crustaceans constituted 12.01%. The next major food group was insect (15.97%), followed by mollusks (14.76%), teleosts (12.98%) and fish eggs (8.608%). Food items like Teleosts, mollusks, insects and shrimps tended to occur in the stomachs in higher frequencies with an increase in R. rita size (up to 30.5 - 40.5cm), while fish eggs, copepods and non-copepode crustaceans tended to increase in stomachs at sizes between 10.5-20.5cm. Analysis of monthly variations in stomach fullness indicated that feeding intensity fluctuated throughout the year with a low during June and August corresponding to the spawning period. Keywords: Rithe, food items, feeding frequency, Ganges, Rajshahi. 1 INTRODUCTION mollusks, fishes and rotifers in adult stage (Bhuiyan, 1964 and Rita rita (Hamilton) is a freshwater fish and commonly known Rahman, 2005) but takes insects and aquatic plants in earlier as catfish.
    [Show full text]
  • Platydoras Costatus (Raphael Catfish) Ecological Risk Screening Summary
    Raphael Catfish (Platydoras costatus) Ecological Risk Screening Summary U.S. Fish and Wildlife Service, February 2011 Revised, July 2018 Web Version, 9/20/2019 Photo: Erling Holm, via FishWise Professional. Licensed under Creative Commons BY-NC-SA. Available: http://eol.org/data_objects/24181426. (July 2018). 1 Native Range and Status in the United States Native Range From Nico et al. (2018): “South America, from Venezuela and the Guianas to Argentina (Robins et al. 1991), including the Amazon, Tocantins, Parnaíba, Orinoco, and Essequibo River basins and coastal drainages in French Guiana and Suriname.” From Piorski et al. (2008): “[…] coastal drainages of Suriname and French Guiana […]” 1 From Eschmeyer et al. (2018): “Distribution: Amazon, Tocantins, Parnaíba, Orinoco and Essequibo River basins and coastal drainages in French Guiana and Suriname: Bolivia, Brazil, Ecuador, ?Colombia, French Guiana, Guyana, Peru, Suriname and Venezuela. But perhaps only coastal drainages of Suriname and French Guiana.” Conflicting descriptions of the distribution of P. costatus are apparent in the quotations above. In this ERSS, the broader definition is used because most information available refers to this definition of the species range. Status in the United States From Nico et al. (2018): “Reported from Florida and Texas. Likely failed introduction: there have been no additional specimens or reports since initial sightings.” Nico et al. (2018) report that the record from Florida dates to 1984 and the record from Texas dates to 1999. VertNet (2018) reports an occurrence in May 2002 in New Mexico: “Caught 15 May 2002 by Frank Jimenez of Tesuque […] at Santa Cruz Lake, Santa Fe Co. with a net as it was swimming near shoreline.” The frequency of this species in trade is unclear (see Remarks).
    [Show full text]
  • Proceedings of the Helminthological Society of Washington 49(2) 1982
    I , , _ / ,' "T '- "/-_ J, . _. Volume 49 Jrily 1982;} Nufnber,2 \~-.\ .•'.' ''•-,- -• ;- - S "• . v-T /7, ' V. >= v.-"' " - . f "-< "'• '-.' '" J; PROCEEDINGS -. .-.•, • "*-. -. The Helmifltliological Society Washington :- ' ; "- ' A^siBmiohnua/ /ourna/ of research devofedVfp ^He/miiithoibgy and , a// branches of Parasi'fology in part by the ; r r;Brqytpn H.yRansom Memorial /Trust Fond TA'&'- -s^^>~J ••..''/'""', ':vSj ''--//;i -^v Subscription ^$18X)0 a Volume; Foreign, $19.00 AMIN, ,OwARr M. Adult Trematodes (Digenea) from Lake'Fishes ;6f Southeastern;Wisconsin, A with a Key to;Species ofvthe Genus Crleptdottomu/rt firwm, 1900 in-North America '_'.C-_~i-, 196- '•}AMIN, OMAR M. Two larval Trematodes'^Strigeoide^y^f fishes iri/Southeastern Wiscpnsin .:._ 207 AIMIN, OMARM. Description of Larval Acanthoctphajus parksidei Amin, 1975 (Acanthocephala: I A Echinorhynchidae) from Its iSopod Intermediate Host—i'.i.—_i.;—;-__-..-_-__-.—J....... 235 AMIN, PAIARM."and DONAL G.'My/ER. 'Paracreptbtrematina\timi gen.;et sp. inov. (Digenea: -. v Allocreadiidae) frohi-the Mudminnow, Umbra limi '.:'-._.2i_i-..__.^^.^i.., _— -____i_xS185 BAKER, M.i R. ,'On Two'Nevy Nie;matode Parasites (TnchOstrongyloidea: Molineidae) from f— , Amphibians;and Reptiles (...^d.-. -—._..-l.H— --^_./——.—.—.j- ^::l.._.___i__ 252 CAMPBELL, RONALD A:, STEVEN J- CORREIA, AND ;RIGHA»PTL. HAEPRJGH., A ,New Mbnor : • \ ^genean/and Cestode from'jthe Deep-Sea Fish, Macrourus berglax Lacepede, ;1802,' from jHe Flemish 'Cap off Newfoundland -u—— :.^..——u—^—-—^—y——i——~--———::-—:^ 169 vCAMPBELL, .RoNALp A. AND JOHN V.-^GARTNER, JR. "'Pistarta eutypharyifgis gen.\et sp. 'n.' , (', (Ceystoda: Pseudophyllidea)_from/;the Bathypelagic Gulper .Eel, ~Eurypharynx-pelecanoides ^.Vaillant, 1882, withiComments on Host arid Parasite Ecology -.:^-_r-::--—i—---_—L——I.
    [Show full text]
  • Varanus Macraei
    BIAWAK Journal of Varanid Biology and Husbandry Volume 13 Number 2 ISSN: 1936-296X On the Cover: Varanus macraei The Blue tree monitors, Varanus mac- raei depicted on the cover and inset of this issue were hatched on 14 No- vember 2019 at Bristol Zoo Gardens (BZG) and are the first of their spe- cies to hatch at a UK zoological in- stitution. Two live offspring from an original clutch of four eggs hatched after 151 days of incubation at a tem- perature of 30.5 °C. The juveniles will remain on dis- play at BZG until they are eventually transferred to other accredited Euro- pean Association of Zoos & Aquari- ums (EAZA) institutions as part of the zoo breeding programme. Text and photographs by Adam Davis. BIAWAK Journal of Varanid Biology and Husbandry Editor Editorial Review ROBERT W. MENDYK BERND EIDENMÜLLER Department of Herpetology Frankfurt, DE Smithsonian National Zoological Park [email protected] 3001 Connecticut Avenue NW Washington, DC 20008, US RUston W. Hartdegen [email protected] Department of Herpetology Dallas Zoo, US Department of Herpetology [email protected] Audubon Zoo 6500 Magazine Street TIM JESSOP New Orleans, LA 70118, US Department of Zoology [email protected] University of Melbourne, AU [email protected] Associate Editors DAVID S. KIRSHNER Sydney Zoo, AU DANIEL BENNETT [email protected] PO Box 42793 Larnaca 6503, CY JEFFREY M. LEMM [email protected] San Diego Zoo Institute for Conservation Research Zoological Society of San Diego, US MICHAEL Cota [email protected] Natural History Museum National Science Museum, Thailand LAURENCE PAUL Technopolis, Khlong 5, Khlong Luang San Antonio, TX, US Pathum Thani 12120, TH [email protected] [email protected] SAMUEL S.
    [Show full text]
  • THE LARGER ANIMAL PARASITES of the FRESH-WATER FISHES of MAINE MARVIN C. MEYER Associate Professor of Zoology University of Main
    THE LARGER ANIMAL PARASITES OF THE FRESH-WATER FISHES OF MAINE MARVIN C. MEYER Associate Professor of Zoology University of Maine PUBLISHED BY Maine Department of Inland Fisheries and Game ROLAND H. COBB, Commissioner Augusta, Maine 1954 THE LARGER ANIMAL PARASITES OF THE FRESH-WATER FISHES OF MAINE PART ONE Page I. Introduction 3 II. Materials 8 III. Biology of Parasites 11 1. How Parasites are Acquired 11 2. Effects of Parasites Upon the Host 12 3. Transmission of Parasites to Man as a Result of Eating Infected Fish 21 4. Control Measures 23 IV. Remarks and Recommendations 27 V. Acknowledgments 30 PART TWO VI. Groups Involved, Life Cycles and Species En- countered 32 1. Copepoda 33 2. Pelecypoda 36 3. Hirudinea 36 4. Acanthocephala 37 5. Trematoda 42 6. Cestoda 53 7. Nematoda 64 8. Key, Based Upon External Characters, to the Adults of the Different Groups Found Parasitizing Fresh-water Fishes in Maine 69 VII. Literature on Fish Parasites 70 VIII. Methods Employed 73 1. Examination of Hosts 73 2. Killing and Preserving 74 3. Staining and Mounting 75 IX. References 77 X. Glossary 83 XI. Index 89 THE LARGER ANIMAL PARASITES OF THE FRESH-WATER FISHES OF MAINE PART ONE I. INTRODUCTION Animals which obtain their livelihood at the expense of other animals, usually without killing the latter, are known as para- sites. During recent years the general public has taken more notice of and concern in the parasites, particularly those occur- ring externally, free or encysted upon or under the skin, or inter- nally, in the flesh, and in the body cavity, of the more important fresh-water fish of the State.
    [Show full text]
  • Download Article (PDF)
    Miscellaneous Publication Occasional Paper No. 8 • AID TO IDENTIFICATION OF SILUROIDS 1 BAGRIDAE BY K. C. JAYARAM RECORDS OF THE ZOOLOGICAL SURVEY OF INDIA MISCELLANEOUS PUBLICATION OCCASIONAL PAPER No. 8 AID TO THE IDENTIFIOATION OF THE SILUROID FISHES OF INDIA, BURMA, SRI LANKA, PAKISTAN AND BANGLADESH 1. BAGRIDAE BY K. C. JAYARAM ': I. , Edited by the Director, Zoological Survey of India 1977 © Copyright 1977, Government of India PRICE: Inland: Rs. 8-50 Foreign: {, 0.75 or $ 1.50 PRINTED IN INDIA AT ARMA PRESS, MADRAS - 600 041 AND PUBLISHED BY THE CONTROLLER OF PUBLICATIONS, CIVIL LINES, DELHI-IIO 006. RECORDS OF THE ZOOLOGICAL SURVEY OF INDIA MISCELLANEOUS PUBLICATIONS Occasional Paper No. 8 1977 Pages 1-41 CONTENTS INTRODUCTION 1 ACKNOWLEDGEMENTS 3 KEy TO THE FAMILIES OF SILUROIDEA 4 Family BAGRIDAE 9 Key to the genera of BAGRIDAE 10 Genus Rita Bleeker 12 Key to the Species 12 Genus Batasio Blyth 16 Key to the Species 16 Genus ChandralDara Jayaram 18 Genus Horabagrus J ayaram 19 Genus Mystus Scopoli 21 Key to tIle Species 22 Genus Aorichthys Wu 38 Key to the Species 39 REFERENCES 41 INTRODUCTION The catfishes or the siluroid fishes of the order Siluriformes comprise approximately 30 families and about 2000 species in their entire range of distribution from South America, Africa, Europe, Asia, to Japan. A vast majority of them are found in South America or Africa; and most are confined to freshwater. Of these 30 families, 13 are found in India, Pakistan, Bangla­ desh, Sri Lanka and Burma. 46 genera are round in these countries of which only three occur outside India, although they are closely related to Indian forms.
    [Show full text]
  • Morphometric and Meristic Variations in Different Fish Species of Family
    Journal of Entomology and Zoology Studies 2020; 8(4): 1788-1793 E-ISSN: 2320-7078 P-ISSN: 2349-6800 Morphometric and meristic variations in different www.entomoljournal.com JEZS 2020; 8(4): 1788-1793 fish species of family Bagridae from Harike © 2020 JEZS Received: 01-05-2020 wetland Accepted: 03-06-2020 Chinthareddy Priyanka M.F.Sc. Student, Department of Chinthareddy Priyanka, Grishma Tewari, SN Datta and Naveen Kumar Fisheries Resource Management, BT College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Abstract Punjab India The present study was conducted to assess the morphometric and meristic variations in different species of family Bagridae reported from Harike wetland, a Ramsar site in Punjab. During the study period, three Grishma Tewari major species of family Bagridae viz. Sperata seenghala, Sperata aor and Rita rita were encountered in Assistant Scientist (Fisheries), fish catch from Harike wetland. Maximum catch contribution was recorded from S. seenghala, followed Department of Fisheries by Rita rita and S.aor. Thirty five morphometric and six meristic characters were recorded for all three Resource Management, College species of Bagridae. Average body weight of S. seenghala was reported as 800 ± 0.04 g with the range of of Fisheries, Guru Angad Dev 342- 1720 g while total length as 53.72 ± 1.08 with the range of 41-69 cm. S. aor represented average Veterinary and Animal Sciences weight of captured fish 820 ± 0.11g with the range of 326- 1082 g while total length as 55.9 ± 3.02with University, Ludhiana, Punjab the range of 42-62.5 cm.
    [Show full text]
  • On the Host Specificity of Fish Tapeworm Proteocephalus Exiguus La Rue, 1911 (Cestoda) Hanzelová V.* Šnábel V
    Article available at http://www.parasite-journal.org or http://dx.doi.org/10.1051/parasite/1996033253 ON THE HOST SPECIFICITY OF FISH TAPEWORM PROTEOCEPHALUS EXIGUUS LA RUE, 1911 (CESTODA) HANZELOVÁ V.* ŠNÁBEL V. * & ŠPAKULOVÁ M.* Summary : Résumé: INTERACTIONS HÔTE-PARASITE DE PROTEOCEPHALUS EXIGUUS LA RUE 1911 (CESTODE DE POISSONS) Host-parasite interactions established between Proteocephalus exiguus and its fish hosts have been analysed in two localities in Les interactions hôte-parasite établies entre Proteocephalus exiguus Slovakia. P. exiguus occurred and sexually matured in three et ses hôtes poissons ont été analysées dans deux localités de salmonid hosts - rainbow trout (Oncorhynchus mykiss), brown trout Slovaquie. P. exiguus a été observé et a atteint le stade de (Salmo trutta m. fario), brook trout (Salvelinus fontinalis) — and in maturation sexuelle chez trois salmonidés — la truite arc-en-ciel perch (Perca fluviatilis), first recorded as a final host of this (Oncorhynchus mykiss), la truite saumonée (Salmo trutta m. fario), parasite. The parasite usually strictly prefered its principal, most le saumon de fontaine (Salvelinus fontinalis) — et la perche (Perca suitable host (rainbow trout) or some other salmonid hosts. The fluviatilis), signalée pour la première fois comme hôte final du new fish host species (perch) harboured P. exiguus rather parasite. Habituellement, le parasite marque une préférence très frequently, but only in altered ecosystem, if salmonids were not marquée pour l'hôte principal le plus adapté (truite arc-en-ciel) ou available in sufficient number in the environment. Large adaptive pour d'autres espèces de salmonidés. La nouvelle espèce de ability of P. exiguus manifested in its survival in four fish hosts of poisson-hôte (la perche) abrite relativement fréquemment two distant families (Salmonidae, Percidae) and modified P.
    [Show full text]
  • Geometric Morphometrics and Phylogeny of the Catfish Genus Mystus Scopoli (Siluriformes:Bagridae) and North American Cyprinids (Cypriniformes)
    Geometric Morphometrics and Phylogeny of the Catfish genus Mystus Scopoli (Siluriformes:Bagridae) and North American Cyprinids (Cypriniformes) by Shobnom Ferdous A dissertation submitted to the Graduate Faculty of Auburn University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy Auburn, Alabama December 14, 2013 Copyright 2013 by Shobnom Ferdous Approved by Jonathan W. Armbruster, Department of Biological Sciences, Auburn University & Committee Chair Craig Guyer, Department of Biological Sciences, Auburn University Michael C. Wooten, Department of Biological Sciences, Auburn University Lawrence M. Page, Curator of Fishes, Florida Museum of Natural History Abstract Understanding the evolution of organismal form is a primary concern of comparative biology, and inferring the phylogenetic history of shape change is, therefore, a central concern. Shape is one of the most important and easily measured elements of phenotype, and shape is the result of the interaction of many, if not most, genes. The evolution of morphological traits may be tightly linked to the phylogeny of the group. Thus, it is important to test the phylogenetic dependence of traits to study the relationship between traits and phylogeny. My dissertation research has focused on the study of body shape evolution using geometric morphometrics and the ability of geometric morphometrics to infer or inform phylogeny. For this I have studied shape change in Mystus (Siluriformes: Bagridae) and North American cyprinids. Mystus Scopoli 1771 is a diverse catfish group within Bagridae with small- to medium-sized fishes. Out of the 44 nominal species worldwide, only 30 are considered to be part of Mystus. Mystus is distributed in Turkey, Syria, Iraq, Iran, Afghanistan, Pakistan, India, Nepal, Sri Lanka, Bangladesh, Myanmar, Thailand, Malay Peninsula, Vietnam, Sumatra, Java and Borneo.
    [Show full text]
  • Rita Rita (Hamilton, 1822), a Threatened Fish of Indian Subcontinent
    International Research Journal of Biological Sciences ___________________________________ ISSN 2278-3202 Vol. 4(11), 70-73, November (2015) Int. Res. J. Biological Sci. Rita rita (Hamilton, 1822), A Threatened Fish of Indian Subcontinent Gupta S. ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata-700120, INDIA Available online at: www.isca.in, www.isca.me Received 22nd October 2015, revised 26 th October 2015, accepted 9th November 2015 Abstract Rita rita is a commercially important catfish species which has good market as a food fish as having excellent taste and good protein content in its flesh. In recent times it has also been admired as an ornamental fish. Recently due to over exploitation and loss of breeding grounds, populations of this fish species are facing the threat of extinction. Already it has been documented as lower risk near threatened in India and critically endangered in Bangladesh. So, to protect the populations of Rita rita , proper measures must be taken as quickly as possible on a serious note. The present report has been prepared to gather the available information on different aspects of Rita rita along with noting down the possible measures that can be considered for its conservation. Keywords: Rita rita ; Catfish; Threatened; Conservation. Introduction occipital process. Occipital process is 1-2 times longer than broad, notched posteriorly and is reaching basal bone of dorsal 1,2 Rita rita is a commercially important catfish ; forming a good fin. Mouth is inferior and transverse; gape is wide and is as long 3 fishery in major rivers of the Indo-Gangetic plains . It is a well as half of head length.
    [Show full text]
  • Zootaxa, Teleostei, Bagridae
    Zootaxa 568: 1–12 (2004) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA 568 Copyright © 2004 Magnolia Press ISSN 1175-5334 (online edition) Rita macracanthus, a new riverine catfish (Teleostei: Bagridae) from South Asia HEOK HEE NG Fish Division, Museum of Zoology, University of Michigan, 1109 Geddes Avenue, Ann Arbor, Michigan 48109- 1079, USA ([email protected]) Abstract A new species of bagrid catfish of the genus Rita is described from the Indus River drainage in South Asia. Rita macracanthus differs from all congeners in having a unique combination of the following characters: dorsal spine reaching to middle of adipose-fin base; pectoral-spine length 28.7–30.0% SL; depth of caudal peduncle 7.6–8.4% SL; maximum length of premaxillary tooth band 4.8–6.4 times its maximum width; eye diameter 6.9–8.7% HL; interorbital distance 39.4– 44.1% HL; dorsal surface of head between eyes and supraoccipital covered with thin skin wherein the underlying bone is visible; two distinct vomerine tooth patches with rounded peg-like teeth. The new species has been identified up until now as Rita rita, but is distinguished from that species in having longer dorsal and pectoral spines, a more slender caudal peduncle, and a longer premaxil- lary tooth band. Key words: Rita, Bagridae, Indus River, new species Introduction Bagrid catfishes of the genus Rita Bleeker, 1854 are found in large rivers throughout the Indian subcontinent and Myanmar, and are capable of reaching sizes to 1500 mm TL (Tal- war and Jhingran, 1991), although mature specimens of ca.
    [Show full text]