1 1 Al-Awadi et al. Bull. Iraq nat. Hist. Mus. (2010) 11 (1): 1-9 PARASITIC FAUNA OF FISHES IN BAHR AL-NAJAF DEPRESSION, MID IRAQ Haytham M. H. Al-Awadi*, Furhan T. Mhaisen** and Fadhil F. Al-Joborae*** * Dept. Biol., Coll. Educ., Univ. Kufa, Najaf, Iraq ** Dept. Biol., Coll. Educ. (Ibn Al-Haitham), Univ. Baghdad, Baghdad, Iraq *** Dept. Histol. Embryol., Coll. Med., Univ. Babylon, Hilla, Iraq ABSTRACT During a period of two years, from January 1995 till December 1996, the first survey on fish parasites in Bahr Al-Najaf depression, mid Iraq, was achieved. A total of 6992 fishes, belonging to 11 species, were collected and inspected for external and internal parasites. These fishes were infected with three protozoans (Ichthyophthirius multifiliis, Trichodina domerguei and Myxobolus pfeifferi), two monogeneans (Dactylogyrus cornu and Gyrodactylus elegans), two digenetic trematodes (Clinostomum complanatum and Ascocotyle coleostoma), one nematode (Contracaecum sp.) and one acanthocephalan (Neoechinorhynchus iraqensis). Five fish species were recorded as new hosts in Iraq for four helminth species of the present study. INTRODUCTION During the last 25 years or so, marine fishing in Iraq was ceased due to the war circumstances. Also, fish culture industry was decreased due to the economic blockade. Hence, hopes were focused on inland fisheries. Whole- year surveys on parasites of fishes in different parts of inland waters of Iraq are numerous (Mhaisen, 2009). Some surveys covered one or more major groups of parasites. Some were restricted to one or more fish species. Most of such surveys were done on fishes from different localities of Iraqi rivers. Among such surveys, works concerned with more than one major group of parasites and more than one fish species from inland waters of Iraq (other than rivers) will be mentioned here. These included those of Al-Daraji (1986) in Al-Hammar marshes, Al-Saadi (1986) in Al-Tharthar lake, Al-Alusi (1989), Asmar et al. (1999) and Balasem et al. (2003) in Al-Qadisiya dam lake, Abdullah (1990) in Dokan lake, Mhaisen et al. (1999) in Al-Habbaniya lake, Balasem et al. (2000) in Hemrin dam lake, Mhaisen et al. (2003) in Al-Madaen drainage network and Abdullah (2005) in Darbandikhan lake. From the above information, it is clear that no study was done on the parasitic fauna of fishes in Bahr Al-Najaf depression. Therefore, the present investigation was focused on this area as the detailed knowledge of the parasitic fauna is necessary for any attempt to improve the stocks of valuable commercial fisheries in inland waters (Shul’man, 1961). 2 Parasitic Fauna of Fishes MATERIALS AND METHODS Bahr Al-Najaf depression (the sampling area of the present study) lies southwest of Al- Najaf Al-Ashraf city. This area is located between 31° 45′ and 31° 57′ north latitude and 44° 7′ and 44° 16′ east longitude (Abul-Fatih, 1970). Many desert streams flow southward from the Euphrates river and discharge their flood water into Bahr Al-Najaf depression. This depression also receives drainage waters from the southern cultivated area. Springs in the region are considered as another source of water in this depression (personal communication with Al-Najaf Irrigation and Agrarian Directorate). This depression includes a terrestrial habitat and an aquatic habitat. Fish specimens were collected during the period from January 1995 till December 1996. They were caught with the aid of a small cast net and a hand net. Fishes were directly transported to the laboratory where they were measured, weighed and sexed. Coad’s (1991) list was followed for the scientific names of fishes. Skin and gill smears, eye lenses, body cavity, musculature and all internal organs were inspected according to Amlacher (1970). Mhaisen’s (2009) index-catalogue of parasites and disease agents of fishes of Iraq was followed to indicate the number of previous host records for each parasite species in order to minimize number of references for each parasite. Percentage incidence of infection was calculated as defined by Margolis et al. (1982). Parasite identification was done according to Bykhovskaya-Pavlovskaya et al. (1962) and Amin et al. (2001). RESULTS AND DISCUSSION During the two years period of the present study, 6992 fishes were captured. These belong to seven families and 11 species as demonstrated below with their numbers:- Family Cyprinidae 253 Barbus grypus Heckel, 1843 322 Barbus luteus (Heckel, 1843) 155 Barbus sharpeyi Günther, 1874 197 Barbus xanthopterus (Heckel, 1843) 82 Carassius carassius (Linnaeus, 1758) Family Bagridae 88 Mystus pelusius (Solander in Russell, 1794) Family Siluridae 65 Silurus triostegus Heckel, 1843 Family Heteropneustidae 113 Heteropneustes fossilis (Bloch, 1794) Family Cyprinodontidae 2158 Aphanius dispar (Rüppell, 1828) Family Poeciliidae 701 Gambusia affinis (Baird et Girard, 1853) Family Mugilidae 2858 Liza abu (Heckel, 1843) Nine parasite species were detected in the present investigation. Table (1) shows a list of the recorded parasites (phylogenetically arranged) and their hosts together with their percentage incidence of infection and site of infection. The following is a brief account on the occurrence of these parasites. 3 Al-Awadi et al. Table (1): Parasite- fish host list in Bahr Al-Najaf depression. Parasite species Fish host % Incidence Site of infection * Ichthyophthirius multifiliis Barbus luteus 13 G Barbus sharpeyi 12 G Heteropneustes fossilis 9 G Mystus pelusius 15 G Liza abu 22 G Trichodina domerguei Barbus sharpeyi 11 S, G Heteropneustes fossilis 15 S, G Liza abu 8 S, G Myxobolus pfeifferi Barbus luteus 15 S, G Liza abu 17 S, G Dactylogyrus cornu Barbus luteus 12 G Liza abu 13 G Gyrodactylus elegans Barbus luteus ** 13 S Heteropneustes fossilis 10 S Liza abu 7 S Ascocotyle coleostoma Heteropneustes fossilis 13 S Clinostomum complanatum Aphanius dispar 12 S Barbus luteus 12 S Gambusia affinis 15 S Heteropneustes fossilis 17 S Liza abu ** 11 S Contracaecum sp. Aphanius dispar ** 52.6 K, L, M Barbus grypus 15 K, L, M Gambusia affinis ** 12 BC Liza abu 62.2 I, K, L, M, Sp Neoechinorhynchus iraqensis Barbus xanthopterus ** 9 I Liza abu 39.8 I * Site of infection: BC= body cavity, G= gills, I= intestine, K= kidneys, L= liver, M= mesenteries, S= skin, Sp= spleen. ** New host record in Iraq Protozoa – Ciliophora Two ciliated protozoans (Ichthyophthirius multifiliis and Trichodina domerguei) were recorded in the present study (Table 1). Ichthyophthirius multifiliis was recorded from gills of five fish species of the present study (B. luteus, B. sharpeyi, H. fossilis, M. pelusius and L. abu. Herzog (1969) recorded I. multifiliis for the first time in Iraq from Mugil dussumieri in Tigris river at Baghdad city. According to 4 Parasitic Fauna of Fishes Mhaisen (2009), a total of 28 fish host species are so far known for this parasite in Iraq, inclusive of the five fish species of the present study. This parasite is a dangerous pathogen, especially under intensive fish culture as it causes the white spot disease (Duijn, 1973). Trichodina domerguei of the present study was recorded from skin and gills of three fish species (B. sharpeyi, H. fossilis and L. abu). Its first record from Iraq was by Shamsuddin et al. (1971) from eight fish species (B. esocinus, B. grypus, B. luteus, B. sharpeyi, B. xanthopterus, Cyprinus carpio, L. abu and S. triostegus) taken from different fish markets in Baghdad city. Now, it has 33 fish hosts in Iraq inclusive of the three species of the present study (Mhaisen, 2009). According to Amlacher (1970), this parasite exerts little pathological effects on its host. However, Rogers and Gaines (1975) claimed that trichodiniasis is oftenly associated with other parasitic infections, and hence it is difficult to determine the actual cause of the disease. Protozoa – Myxozoa Only one species (Myxobolus pfeifferi) was recorded from the skin and gills of both B. luteus and L. abu of the present study. This parasite was recorded for the first time in Iraq by Fattohy (1975) from Acanthobrama marmid in Tigris river at Mosul city. This is a common parasite in different parts of Iraq as it has, so far, 33 host species (Mhaisen, 2009). This parasite is known to attack different fish organs (Amlacher, 1970; Duijn, 1973). Mhaisen et al. (1989) demonstrated different degrees of petrification and degeneration of L. abu ovaries in a fish farm in Babylon province due to this parasite. Monogenea Two species of monogenetic trematodes were recorded in the present study. These were Dactylogyru cornu and Gyrodactylus elegans (Table 1). Dactylogyrus cornu was recorded from gills of both B. luteus and L. abu of the present study. Its first record in Iraq was by Ali et al. (1986a) from six fish species (B. belayewi, B. grypus, B. luteus, B. xanthopterus, Chondrostoma regium and S. triostegus) in Diyala river. Six more hosts were then reported for this parasite in Iraq (Mhaisen, 2009) inclusive of L. abu of the present study. Gyrodactylus elegans of the present study was recorded from the skin of three fish species (B. luteus, H. fossilis and L. abu). Its first record in Iraq was by Ali and Shaaban (1984) from C. carpio and L. abu in Al-Zaafaraniya fish farm, south of Baghdad. So far, it has 22 fish hosts in Iraq, inclusive of B. luteus of the present study, which represents a new host record (Mhaisen, 2009). It is necessary to mention here that Asmar et al. (1999), Mohammad-Ali et al. (1999), Al-Nasiri (2000), Salih et al. (2000) and Al-Awadi (2003) had reported this parasite from B. luteus before the publication of the present paper. Trematoda Metacercariae of two species of digenetic trematodes were recorded in the present study. These were Ascocotyle coleostoma and Clinostomum complanatum (Table 1). Metacercariae of A. coleostoma of the present study were recorded from the skin of H. fossilis. These metacercariae were reported for the first time in Iraq by Ali et al. (1986b) from H. fossilis in Diyala river. So far, this species was reported from 22 fish hosts in Iraq (Mhaisen, 2009). The adult worm was detected from the intestine of the grey heron, Ardea cinerea in Babylon fish farm (now Euphrates fish farm) near Hilla city (Mhaisen and Abul-Eis, 1992). Metacercariae of C. complanatum of the present study were recorded from the skin of five fish species (A. dispar, B. luteus, G. affinis, H. fossilis and L. abu). These metacercariae were recorded for the first time in Iraq by Khamees (1983) from Aspius vorax and B. luteus in Mehaijeran creek, south of Basrah. A total of 16 fish hosts are, so far, known to harbor this 5 Al-Awadi et al. species in Iraq including A. dispar, H. fossilis and G. affinis (Mhaisen, 2009). So, L. abu of the present study represents a new host record for C. complanatum in Iraq. It is adequate to indicate here that Jori (1998), Abdul-Rahman (1999), Al-Niaeem (2006) and Al-Saadi (2007) had reported this species from L. abu before the publication of the present paper. C. complanatum infects the skin, gills and muscles of freshwater fishes and causes the yellow grub disease (Amlacher, 1970). The adult worm lives in the mouth and pharynx of piscivorous birds such as herons and bitterns (Duijn, 1973). Nemathelminthes The third larval stages of the nematode Contracaecum spp. were found encysted in kidneys, liver and mesenteries of both A. dispar and B. grypus, in the body cavity of G. affinis and in the intestine, kidneys, liver, mesenteries and spleen of L. abu (Table 1). These larvae were reported for the first time in Iraq by Herzog (1969) from 10 species of fishes in different parts of Iraq (A. vorax, B. esocinus, B. grypus, B. luteus, B. sharpeyi, B. xanthopterus, H. fossilis, L. abu, M. pelusius and S. triostegus). This is the commonest fish helminth parasite in inland waters of Iraq as its host list consists of 35 species including the two new records of the present study (A. dispar and G. affinis) according to Mhaisen (2009). The final hosts for Contracaecum spp. in Iraq are some aquatic birds (Shamsuddin et al., 1971; Al-Hadithi and Habish, 1977; Al-Hadithi and Abdullah, 1991; Awad et al., 1994; Al-Awadi, 1997). Acanthocephala One species of spiny- headed worms (Neoechinorhynchus iraqensis) was recorded from the intestine of both B. xanthopterus and L. abu. According to Mhaisen (2002), this species was erroneously identified as N. agilis in most Iraqi literature prior to the nomination of N. iraqensis by Amin et al. (2001). The first record of N. agilis (as a synonym of N. iraqensis in Iraqi literature) was by Habash and Daoud (1979) from Mugil hishni (a synonym of L. abu) in Shatt Al-Arab river. Now, the host list of N. iraqensis (together with N. agilis) comprises 17 fish species inclusive of B. xanthopterus, which represents a new host record for N. iraqensis in Iraq (Mhaisen, 2009). No more reports are available on the occurrence of N. iraqensis in B. xanthopterus in Iraq. In intensive infection, N. iraqensis is known to cause intestinal blockage as indicated by Khamees (1983) for L. abu in Mehaijeran creek, south of Basrah. LITERATURE CITED Abdullah, S.M.A. 1990. Survey of the parasites of fishes of Dokan lake. M. Sc. Thesis, Univ. Salahadden: 115pp. (In Arabic). Abdullah, S.M.A. 2005. Parasitic fauna of some freshwater fishes from Darbandikhan lake, north of Iraq. J. Dohuk Univ., 8(1): 29-35. Abdul-Rahman, N.M. 1999. Parasites infection in fish from Garmat Ali river and its relation with food items. M. Sc. Thesis, Univ. Basrah: 103pp. (In Arabic). Abul-Fatih, H.A. 1970. The vegetation of saline swampy area of Bahr Al-Najaf, Iraq. M. Sc. Thesis, Univ. Baghdad: 87pp. Al-Alusi, M.A. 1989. A study of alimentary canal helminths of some species of Iraqi fishes from Al-Qadissiya dam lake. M. Sc. Thesis, Univ. Baghdad: 110pp. (In Arabic). Al-Awadi, H.M.H. 1997. Some ecological aspects of the parasitic faunae of fishes and aquatic birds in Bahr Al-Najaf depression, Iraq. Ph. D. Thesis, Univ. Baghdad: 71pp. 6 Parasitic Fauna of Fishes Al-Awadi, H.M.H. 2003. Parasitic faunae (Protozoa and Monogenea) of six species of fish from Euphrates river near Kufa district (Najaf Al-Ashraf province, Iraq. Babylon Univ. J., Pure Appl. Sci., 8(3): 529-532. Al-Daraji, S.A.M. 1986. Survey of parasites from five species of fishes found in Al-Hammar marsh. M. Sc. Thesis, Univ. Basrah: 130pp. (In Arabic). Al-Hadithi, I.A.W. and Abdullah, B.H. 1991. Some helminth parasites from three species of aquatic birds in Basrah, Iraq. Basrah J. Agric. Sci., 4: 261-271. Al-Hadithi, I.A.W. and Habish, A.H. 1977. Observations on nematode parasite (Contracaecum sp.) in some Iraqi fishes. Bull. Basrah Nat. Hist. Mus., 4: 17-25. Ali, M.D. and Shaaban, F. 1984. Some species of parasites of freshwater fish raised in ponds and in Tigris- Al-Tharthar canal region. Abst. 7th Sci. Conf. Iraqi Vet. Med. Assoc., Mosul: 23-25 Oct. 1984: 62-63. Ali, N.M.; Al-Jafery, A.R. and Abdul-Ameer, K.N. 1986a. New records of three monogenetic trematodes on some freshwater fishes from Diyala river, Iraq. J. Biol. Scs. Res., 17(2): 253-266. Ali, N.M.; Al-Jafery, A.R. and Abdul-Ameer, K.N. 1986b. New records of three digenetic trematodes on some freshwater fishes from Diyala river, Iraq. Proc. 4th Sci. Conf., Sci. Res. Coun., 5(1): 10-19. Al-Jadoaa, N.A.A. 2002. The parasitic infections and pathological changes of some local and cultured fishes from Al-Qadisiya and Babylon provinces. Ph. D. Thesis, Univ. Al- Qadisiya: 158pp. (In Arabic). Al-Nasiri, F.S. 2000. Parasitic infections in a man- made lake at Al-Amiriya region, Baghdad. M. Sc. Thesis, Univ. Baghdad: 133pp. (In Arabic). Al-Niaeem, K.S.K. 2006. Infection distribution of fish parasites in Basrah province and pathological effects of Saprolegnia sp. and its susceptibility to some plant extracts. Ph. D. Thesis, Univ. Basrah: 172pp. (In Arabic). Al-Saadi, A.A.J.J. 1986. A survey of alimentary canal helminths of some species of Iraqi fishes from Tharthar lake. M. Sc. Thesis, Univ. Baghdad: 94pp. (In Arabic). Al-Saadi, A.A.J.J. 2007. Ecology and taxonomy of parasites of some fishes and biology of Liza abu from Al-Husainia creek in Karbala province, Iraq. Ph. D. Thesis, Univ. Baghdad: 155pp. (In Arabic). Amin, O.M.; Al-Sady, R.S.S.; Mhaisen, F.T. and Bassat, S.F. 2001. Neoechinorhynchus iraqensis sp. n. (Acanthocephala: Neoechino- rhynchidae) from the freshwater mullet, Liza abu (Heckel) in Iraq. Comp. Parasitol., 68(1): 108-111. Amlacher, E. 1970. Textbook of fish diseases (Engl. Transl.). T. F. H. Publ., Jersey city: 302pp. 7 Al-Awadi et al. Asmar, K.R.; Balasem, A.N.; Mhaisen, F.T.; Al-Khateeb, G.H. and Al-Jawda, J.M. 1999. Survey of the parasites of some fish species from Al-Qadisiya dam lake, Iraq. Ibn Al- Haitham J. Pure Appl. Sci., 12(1): 52-61. Awad, A.H.; Abdullah, B.H. and Al-Mayah, S.H. 1994. Some nematodes parasitized in seven species of aquatic birds in Basrah, Iraq. Basrah J. Sci., Ser. B, 12(1): 64-69. Balasem, A.N.; Mhaisen, F.T.; Adday, T.K.; Al-Jawda, J.M. and Asmar, K.R. 2003. A second survey on parasitic infections in freshwater fishes from Al-Qadisiya dam lake, Euphrates river, Iraq. Mar. Mesopot., 18(2): 123-140. (In Arabic). Balasem, A.N.; Mohammad-Ali, N.R.; Adday, T.K.; Ali, A.K. and Waheed, I.K. 2000. Parasitological survey on fish in Hemrin dam lake, province of Diyala. J. Diyala, 1(8 part 1): 104-114. (In Arabic). Bykhovskaya-Pavlovskaya, I.E.; Gusev, A.V.; Dubinina, M.N.; Izyumova, N.A.; Smirnova, T.S.; Sokolovskaya, I.L.; Shtein, G.A.; Shul’man, S.S. and Epshtein, V.M. 1962. Key to parasites of freshwater fish of the U. S. S. R. Akad. Nauk S. S. S. R., Moscow: 727pp. (In Russian). Coad, B.W. 1991. Fishes of the Tigris- Euphrates basin: A critical checklist. Syllogeus, 68: 1- 49. Duijn, Van C. Jnr. 1973. Diseases of fishes, 3rd edn. Iliffe Books, London: 372pp. Fattohy, Z.I. 1975. Studies on the parasites of certain teleostean fishes from the river Tigris, Mosul, Iraq. M. Sc. Thesis, Univ. Mosul: 136pp. Habash, A.H. and Daoud, Y.T. 1979. Neoechinorhynchus agilis (Rudolphi, 1819) Acanthocephala a new record from Mugil hishni found in Shatt Al-Arab, Basrah, Iraq. The Arab Gulf, 11(1): 213-215. Herzog, P.H. 1969. Untersuchungen über die parasiten der süβwasserfische des Irak. Arch. Fischereiwiss., 20(2/3): 132-147. Jori, M.M. 1998. Study of the parasites of two mugilid fish species and the effect of some on the blood parameters. M. Sc. Thesis, Univ. Basrah: 136pp. (In Arabic). Khamees, N.R. 1983. A study of the parasites of Carasobarbus luteus (Heckel), Liza abu (Heckel) and Aspius vorax Heckel from Mehaijeran canal, south of Basrah. M. Sc. Thesis, Univ. Basrah: 148pp. (In Arabic). Margolis, L.; Esch, G.W.; Holmes, J.C.; Kuris, A.M. and Schad, G.A. 1982. The use of ecological terms in parasitology (Report of an ad hoc committee of the American Society of Parasitologists). J. Parasitol., 68(1): 131-133. Mhaisen, F.T. 2002. Literature review and check lists of acanthocephalans of fishes of Iraq. Al-Mustansiriya J. Sci., 13(1): 13-25. Mhaisen, F.T. 2009. Index- catalogue of parasites and disease agents of fishes of Iraq. (Unpublished). 8 Parasitic Fauna of Fishes Mhaisen, F.T. and Abul-Eis, E.S. 1992. Parasitic helminths of eight species of aquatic birds in Babylon fish farm, Hilla, Iraq. Zool. Mid. East, 7: 115-119. Mhaisen, F.T.; Al-Saadi, A.A.J. and Al-Shama’a, A.A. 1999. Some observations on fish parasites of Habbaniya lake. Ibn Al-Haitham J. Pure Appl. Sci., 12(1): 62-67. Mhaisen, F.T.; Ali, N.M.; Abul-Eis, E.S. and Kadim, L.S. 1989. Protozoan and crustacean parasites of the mugilid fish Liza abu (Heckel) inhabiting Babylon fish farm, Hilla, Iraq. J. Biol. Sci. Res., 20(3): 517-525. Mhaisen, F.T.; Al-Khateeb, G.H.; Balasem, A.N.; Al-Shaikh, S.M.J.; Al-Jawda, J.M. and Mohammad-Ali, N.R. 2003. Occurrence of some fish parasites in Al-Madaen drainage network, south of Baghdad. Bull. Iraq Nat. Hist. Mus., 10(1): 39-47. Mohammad-Ali, N.R.; Balasem, A.N.; Mhaisen, F.T.; Salih, A.M. and Waheed, I.K. 1999. Observations on the parasitic fauna in Al-Zaafaraniya fish farm, south of Baghdad. Vet., 9(2): 79-88. Rogers, W.A. and Gaines, J.L. 1975. Lesions of protozoan diseases in fish. In: Ribelin, W.E. and Migaki, G. (eds.). The pathology of fishes. Univ. Wisconsin Press, Madison: 117- 141. Salih, A.M.; Balasem, A.N.; Al-Jawda, J.M.; Asmar, K.R. and Mustafa, S.R. 2000. On a second survey of fish parasites in Al-Zaffaranya fish farm- Baghdad. J. Diyala, 1 (8 part 1): 220-238. (In Arabic). Shamsuddin, M.; Nader, I.A. and Al-Azzawi, M.J. 1971. Parasites of common fishes from Iraq with special reference to larval form of Contracaecum (Nematoda: Heterocheilidae). Bull. Biol. Res. Centre, Baghdad, 5: 66-78. Shul’man, S.S. 1961. Specificity of fish parasites. In: Dogiel, V.A.; Petrushevski, G.K. and Polyanski, Yu.I. (eds.). Parasitology of fishes (Engl. Transl.). Oliver and Boyd, Edinburgh and London: 104-116. 9 Al-Awadi et al. Bull. Iraq nat. Hist. Mus. (2010) 11 (1): 1-9 المجموعة الحيوانية المتطفلة على األسماك في منخفض بحر النجف، وسط العراق هيثم محمد حمادي العوادي* فرحان ضمد محيسن** فاضل فرهود الجبوري*** النجف األشرف، العراق * قسم علوم الحياة، كلية التربية، جامعة الكوفة، ** قسم علوم الحياة، كلية التربية (إبن الهيثم)، جامعة بغداد، بغداد، العراق *** فرع األنسجة واألجنة، كلية الطب، جامعة بابل، الحلة، العراق الخالصة األمســاك يف ، نفــذ أول مســح لطفيليــات 1996وحــىت كــانون األول 1995علــى مــدى عــامني مــن شــهر كــانون الثــاين نوعـــا وفحصـــت حبثـــا عـــن الطفيليـــات اخلارجيـــة 11مسكـــة تعـــود إىل 6992مـــنخفض حبـــر النجـــف، وســـط العـــراق. مجعـــت ، Ichthyophthiriusmultifiliisوالداخليــة. كانــت هــذه األمســاك مصــابة بثالثــة أنــواع مــن احليوانــات اإلبتدائيــــــة ( Trichodina domerguei و Myxobolus pfeifferi ( ونـــــوعني مـــــن املخّرمـــــات أحاديـــــة املنشـــــأ )Dactylogyrus cornu وGyrodactylus elegans ونــــــوعني مــــــن املخّرمــــــات ثنائيــــــة املنشــــــأ ( )Clinostomum complanatum وAscocotyle coleostoma ونــوع واحــد مــن الديــدان اخليطيـــــــة ( )(Contracaecum sp. ) ونـوع واحـد مـن الديـدان شـوكية الـرأسNeoechinorhynchus iraqensis.( سجلت مخسة أنواع من األمساك مضيفات جديدة يف العراق ألربعة أنواع من الديدان يف الدراسة احلالية.