A summary of the blood parasites of British Sea‐fish

Henry, Herbert

doi:10.1002/path.1700180123

Cited by 21 publications

(9 citation statements)

References 8 publications

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“…The trypanosome recorded from off the Shetlands as T. triglae may not be identical with Neumann's species, since Henry (1913b) apparently identified trypanosomes by host species.…”

Section: Commentsmentioning

confidence: 91%

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Trypanosomes infecting cod Gadus morhua L. in the North Atlantic: a resurrection of Trypanosoma pleuronectidium Robertson, 1906 and delimitation of T. murmanense Nikitin, 1927 (emend.), with a review of other trypanosomes from North Atlantic and Mediterranean teleosts

Karlsbakk

Nylund

2006

Syst Parasitol

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Trypanosomes were isolated from Atlantic cod Gadus morhua L. collected from several fjords in western Norway. Morphological studies showed that the 12 infections studied represented a single species, identified as Trypanosoma pleuronectidium Robertson, 1906 which is resurrected and redescribed. This species is characterised by its body length (57.9 +/- 5.4 microm), nearly central nucleus (NI = 1.05 +/- 0.12) and relatively short post-kinetoplastic (PK) region (3.2 +/- 0.8 microm). T. pleuronectidium is transmitted by the leech Calliobdella nodulifera (Malm). T. murmanense Nikitin, 1927 (emend.) is delimited to a species transmitted by the leech Johanssonia arctica (Johansson). This species is separated from T. pleuronectidium by its attained body length, more anterior nucleus, presence of cytoplasmic refractive granules, adnuclear vacuoles and by a longer PK region. Partial SSU rDNA sequences of T. pleuronectidium and T. murmanense from Norway (1980 nt) diverged by 1.9%. The nominal North Atlantic and Mediterranean trypanosome species are reviewed, and T. flesi Lebailly, 1904, T. bothi Lebailly, 1905 and T. limandae Brumpt & Lebailly, 1904 are considered synonyms of T. platessae Lebailly, 1904. T. triglae senegalensis Ranque, 1973 is not considered conspecific with T. triglae Neumann, 1909, and consequently raised to species status as T. senegalense Ranque, 1973. Some other likely synonymies are discussed. In addition to T. pleuronectidium and T. murmanense, the following marine teleost trypanosomes are provisionally listed as valid species pending further study: T. callionymi Brumpt & Lebailly, 1904; T. cotti Brumpt & Lebailly, 1904; T. delagei Brumpt & Lebailly, 1904; T. dorhni Yakimov, 1911; T. gobii Brumpt & Lebailly, 1904; T. laternae Lebailly, 1904; T. myoxocephali Fantham, Porter & Richardson, 1942; T. platessae Lebailly, 1904; T. scorpaenae Neumann, 1909; T. soleae Laveran & Mesnil, 1901; T. triglae Neumann, 1909; and T. yakimovi Yakimov, 1911.

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“…The trypanosome recorded from off the Shetlands as T. triglae may not be identical with Neumann's species, since Henry (1913b) apparently identified trypanosomes by host species.…”

Section: Commentsmentioning

confidence: 91%

“…nud. ) ex 1/53 Melanogrammus aeglefinus (L.) (Gadidae), off Shetlands (Henry, 1913b). Trypanosoma cataphracti Henry, 1913 (nom. nud.)…”

Section: Nomina Nudamentioning

confidence: 99%

Trypanosomes infecting cod Gadus morhua L. in the North Atlantic: a resurrection of Trypanosoma pleuronectidium Robertson, 1906 and delimitation of T. murmanense Nikitin, 1927 (emend.), with a review of other trypanosomes from North Atlantic and Mediterranean teleosts

Karlsbakk

Nylund

2006

Syst Parasitol

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“…However, if these records are scrutinized, they are very curious. In the type hosts (L. pholis and C. galerita), only intraerythrocytic development has been reported (Laveran and Mesnil 1901, Henry 1913, Davies and Johnston 1976, Davies 1982, Sarasquete and Eiras 1985, Eiras 1987, Eiras and Davies 1991, Davies et al 1994) (see Table 1). Such intraerythrocytic development has also been observed in another member of the Blenniidae (Parablennius cornutus) in South Africa (Smit et al 2003a) and in other members of this family elsewhere (Table 1).…”

Section: Distribution and Development Of Haemogregarina Bigemina In Fmentioning

confidence: 99%

Haemogregarina bigemina (Protozoa: Apicomplexa: Adeleorina) - past, present and future

Davies¹,

Smit²,

Hayes³

et al. 2004

FOLIA PARASIT

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Abstract. This paper reviews past, current and likely future research on the fish haemogregarine, Haemogregarina bigemina Laveran et Mesnil, 1901. Recorded from 96 species of fishes, across 70 genera and 34 families, this broad distribution for H. bigemina is questioned. In its type hosts and other fishes, the parasite undergoes intraerythrocytic binary fission, finally forming mature paired gamonts. An intraleukocytic phase is also reported, but not from the type hosts. This paper asks whether stages from the white cell series are truly H. bigemina. A future aim should be to compare the molecular constitution of so-called H. bigemina from a number of locations to determine whether all represent the same species. The transmission of H. bigemina between fishes is also considered. Past studies show that young fish acquire the haemogregarine when close to metamorphosis, but vertical and faecal-oral transmission seem unlikely. Some fish haemogregarines are leech-transmitted, but where fish populations with H. bigemina have been studied, these annelids are largely absent. However, haematophagous larval gnathiid isopods occur on such fishes and may be readily eaten by them. Sequential squashes of gnathiids from fishes with H. bigemina have demonstrated development of the haemogregarine in these isopods. Examination of histological sections through gnathiids is now underway to determine the precise development sites of the haemogregarine, particularly whether merozoites finally invade the salivary glands. To assist in this procedure and to clarify the internal anatomy of gnathiids, 3D visualisation of stacked, serial histological sections is being undertaken. Biological transmission experiments should follow these processes.

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“…Both of these latter haemogregarines, he reported, resembled H. platessae. Moreover, Lebailly Henry (1910Henry ( , 1913a and Noble (1957) all reported H. platessae from UK waters. Thus, the haemogregarine appeared to be common among the flatfishes of northern Europe (see Table 2).…”

Section: Remarksmentioning

confidence: 99%

“…Members of the genus Haemohormidium Henry, 1910 are also fairly common intraerythrocytic parasites of marine fishes (Henry 1910(Henry , 1913a. They are often irregularly round in shape, exhibit peripheral staining with Romanowsky dyes, and show evidence of intraerythrocytic division (Henry 1913b, Laird and Bullock 1969, So 1972, Davies 1980, Barta 1991.…”

mentioning

confidence: 99%

Potential environmental and host gender influences on prevalence of Haemogregarina platessae (Adeleorina: Haemogregarinidae) and suspected Haemohormidium terraenovae (incertae sedis) in Brazilian flounder from the Patos Lagoon Estuary, Southern Brazil

Davies¹,

Amado²,

Cook³

et al. 2008

FOLIA PARASIT

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Abstract. Flounder, Paralichthys orbignyanus (Valenciennes), were captured in polluted and non-polluted sites within the Patos Lagoon Estuary, southern Brazil, over four seasons. Blood films showed a high prevalence of infection with a haemogregarine, or mixed parasitaemias of this and an organism resembling Haemohormidium terraenovae So, 1972. Haemogregarine gamont stages conformed to existing descriptions of Desseria platessae (Lebailly, 1904) Siddall, 1995 from flatfishes, but intraerythrocytic division of meronts was observed, leading to the recommendation for nomenclatural correction, placing the haemogregarine in the genus Haemogregarina (sensu lato) Danilewsky, 1885. Statistical analyses suggested that although sample sizes were small, infections with meront stages, immature and mature gamonts were all influenced by site, and possibly therefore, by pollution. Season also appeared to determine likelihood of infection with meronts and immature gamonts, but not mature gamonts, while adult fish gender apparently affected infection with immature and mature gamonts, but not meronts. The H. terraenovaelike organism exhibited unusual extracellular forms and did not match closely with the type description of H. terraenovae; precise identification was therefore difficult. Data analyses suggested that parasitism by this organism was influenced by site and fish gender, since females and males from non-polluted water were infected, but only females from the polluted site. Season was also important and significantly more adult fish of both sexes were infected with this parasite in the Brazilian summer and autumn, compared with winter and spring. Finally, these appeared to be the first observations of Haemogregarina platessae, and possibly H. terraenovae, from the southern hemisphere.

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A summary of the blood parasites of British Sea‐fish

Cited by 21 publications

References 8 publications

Trypanosomes infecting cod Gadus morhua L. in the North Atlantic: a resurrection of Trypanosoma pleuronectidium Robertson, 1906 and delimitation of T. murmanense Nikitin, 1927 (emend.), with a review of other trypanosomes from North Atlantic and Mediterranean teleosts

Trypanosomes infecting cod Gadus morhua L. in the North Atlantic: a resurrection of Trypanosoma pleuronectidium Robertson, 1906 and delimitation of T. murmanense Nikitin, 1927 (emend.), with a review of other trypanosomes from North Atlantic and Mediterranean teleosts

Haemogregarina bigemina (Protozoa: Apicomplexa: Adeleorina) - past, present and future

Potential environmental and host gender influences on prevalence of Haemogregarina platessae (Adeleorina: Haemogregarinidae) and suspected Haemohormidium terraenovae (incertae sedis) in Brazilian flounder from the Patos Lagoon Estuary, Southern Brazil

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