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1.
Syst Parasitol ; 96(7): 603-616, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31372880

RESUMEN

Lepeophtheirus lichiae Barnard, 1948 (Copepoda: Caligidae), a very rare and poorly known sea louse, is redescribed based on a single newly collected female. The specimen was collected from the dorsal body surface of the leerfish, Lichia amia (Linnaeus) caught in north-eastern Mediterranean waters off the Turkish coast. The original and only available description of L. lichiae was incomplete and with only three illustrations: the dorsal view of the female habitus, the sternal furca, and the postantennal process. Here, we present a full re-description of female of L. lichiae and report it from the Mediterranean Sea for the first time.


Asunto(s)
Copépodos/clasificación , Copépodos/fisiología , Perciformes/parasitología , Animales , Copépodos/citología , Femenino , Mar Mediterráneo , Especificidad de la Especie
2.
Syst Parasitol ; 96(2): 207-232, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30747401

RESUMEN

The caligid copepod Caligus lichiae Brian, 1906 is redescribed based on new material collected from the type-host, Lichia amia (Linnaeus), and from a second carangid, Seriola dumerili (Risso), both caught in the Gulf of Iskenderun, Turkey. Key diagnostic characters of both sexes are reported, supported by drawings and scanning electron microscopy images. Despite the commercial importance of its type-host, L. amia, C. lichiae has not been reported since its original description. After detailed comparison with recent descriptions of Caligus aesopus Wilson C. B., 1921, commonly found on S. dumerili, we recognise these two species as conspecific and propose to relegate C. aesopus Wilson C. B., 1921 to a junior subjective synonym of C. lichiae Brian, 1906. Caligus lichiae is a member of the C. confusus group of species and an identification key to species in this group is provided.


Asunto(s)
Copépodos/clasificación , Copépodos/fisiología , Perciformes/parasitología , Animales , Copépodos/ultraestructura , Femenino , Masculino , Mar Mediterráneo , Microscopía Electrónica de Rastreo , Especificidad de la Especie
3.
Syst Parasitol ; 96(2): 171-189, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30747405

RESUMEN

A new clausidiid copepod was found associated with the ghost shrimp Neocallichirus jousseaumei (Nobili) in the Persian Gulf, on the Iranian coast. The new species shares the armature formula of swimming legs 2 to 4 with C. persiaensis, but can be easily distinguished from its congeners by unique characteristics of the females: the prominent spine on endopodal segment 1 of the antenna, the armature of the maxilliped, and the elongated basis of the swimming legs. Distinguishing features observed in males include the distinct projections on the maxilliped and the armature of legs 1 and 4. In addition to traditional light microscopy-based descriptions, confocal laser scanning microscopy (CLSM) was used to obtain high resolution images and 3-D reconstructions of entire copepods. Structures of taxonomic importance that exhibit complex shapes (male maxilliped and female urosome) were scanned to generate 3-D prints that gave valuable insights about female/male interlocking mechanisms. The taxonomic status and host specificity of Clausidium spp. are discussed and a key to valid species is provided.


Asunto(s)
Copépodos/citología , Copépodos/fisiología , Especificidad del Huésped , Animales , Copépodos/anatomía & histología , Copépodos/ultraestructura , Femenino , Océano Índico , Masculino , Microscopía Confocal , Especificidad de la Especie
4.
Parasitol Res ; 117(12): 3843-3850, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30269176

RESUMEN

A new species of caligid copepod, Caligus mulli n. sp., is described based on specimens collected from surmullet Mullus surmuletus Linnaeus from Atlantic waters off the Azores, Portugal, and from red mullet Mullus barbatus barbatus (Linnaeus) caught in the Mediterranean Sea, off the south-eastern coast of Turkey. Sixteen specimens (both sexes) were collected from the gill cavity of M. surmuletus, and one female was collected from the gill cavity of M. barbatus barbatus. The new species is described from both fish hosts. Detailed comparisons are presented with two closely related species, C. ocyurus Cressey, 1991 and C. biaculeatus Brian, 1914: the former can be distinguished by differences in shape of the dorsal cephalothoracic shield and postantennal process, while the latter differs in relative size of the distal spines on leg 4 and in the shape of the sternal furca. The new species can easily be distinguished from its congeners by a combination of the following additional characteristics: (1) the corpus of the female maxilliped bears a prominent projection proximally and the myxal area is ornamented with a hyaline flange and two sensillae, and (2) the male maxilliped has a conical proximal projection on the corpus and a bifid myxal process opposing the claw.


Asunto(s)
Copépodos/anatomía & histología , Copépodos/clasificación , Enfermedades de los Peces/parasitología , Branquias/parasitología , Perciformes/parasitología , Animales , Femenino , Peces/parasitología , Masculino , Mar Mediterráneo , Portugal , Turquia
5.
Acta Parasitol ; 63(3): 454-473, 2018 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-29975657

RESUMEN

In this study, supplementary information on the morphology of the siphonostomatoid copepod Lepeophtheirus acutus Heller, 1865 is given based on new material collected from the ventral body surface and mouth cavity of common guitarfish, Rhinobatos rhinobatos (Linnaeus) and from the branchial cavity of bull ray, Aetomylaeus bovinus (Geoffroy Saint-Hilaire) caught in Iskenderun Bay, Turkey. This is the first report of L. acutus from Mediterranean waters. Key diagnostic characters of both sexes are reported, supported by light and scanning electron microscopy observations. In addition, Lepeophtheirus rhinobati Luque, Chaves et Cezar, 1998, which is closely related to L. acutus and has been reported from the same host genus, Rhinobatos, is reexamined based on paratypes stored in the collections of the United States National Museum of Natural History. Some of the key diagnostic characters which were incompletely known or lacking in the original description of both sexes of L. rhinobati are redescribed and/or presented for the first time.


Asunto(s)
Copépodos/clasificación , Elasmobranquios/parasitología , Enfermedades de los Peces/parasitología , Animales , Copépodos/ultraestructura , Femenino , Masculino , Mar Mediterráneo , Microscopía Electrónica de Rastreo/veterinaria , Boca/parasitología , Turquia
6.
Syst Parasitol ; 95(6): 591-601, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29808452

RESUMEN

Caligus pagelli Delamare Deboutteville & Nuñes-Ruivo, 1958, a rare and poorly known sea louse, is redescribed based on newly collected specimens of both sexes. The new material was collected from the common pandora Pagellus erythrinus (Linnaeus) caught in western Mediterranean waters off Corsica. The original and only available description of C. pagelli was incomplete and based only on females. Here we redescribe the female in detail, and describe the male for the first time.


Asunto(s)
Copépodos/clasificación , Perciformes/parasitología , Animales , Copépodos/anatomía & histología , Femenino , Francia , Masculino , Mar Mediterráneo , Especificidad de la Especie
7.
Syst Parasitol ; 94(2): 243-254, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-28130672

RESUMEN

Hamaticolax resupinus n. sp. is described from specimens collected from the gill cavities of Coelorinchus mediterraneus Iwamoto & Ungaro and Coryphaenoides mediterraneus (Giglioli) (Gadiformes: Macrouridae) caught in the Western Mediterranean Sea at depths between 1,236 and 1,626 m. Hamaticolax resupinus n. sp. closely resembles H. maleus Oldewage, 1994, but differs from the latter by its smaller body size and in having a genital double-somite in the female that is markedly wider than the free abdominal somites and has strongly convex lateral margins. The new species is only the second bomolochid found on a macrourid host and is the first from depths in excess of 1,200 m. Hamaticolax resupinus n. sp. also represents the first parasitic copepod recorded from Coe. mediterraneus and only the third one from Cor. mediterraneus worldwide.


Asunto(s)
Copépodos/clasificación , Gadiformes/parasitología , Branquias/parasitología , Animales , Copépodos/anatomía & histología , Femenino , Masculino , Mar Mediterráneo , Especificidad de la Especie
8.
Syst Parasitol ; 94(1): 97-109, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-28062993

RESUMEN

The siphonostomatoid parasitic copepod Caligus macrurus Heller, 1865 is redescribed based on new material collected from the gill filaments and pharynx of tripletail Lobotes surinamensis Bloch (Lobotidae) caught in Iskenderun Bay, Turkey. Key diagnostic characters and newly observed taxonomic features are reported, supported by light and scanning electron microscopy observations. This is the first report of C. macrurus from Mediterranean waters. Caligus macrurus is also recognised as conspecific with the better known Caligus bennetti Causey, 1953, found on the same host, which becomes a junior subjective synonym of C. macrurus. Caligus O.F. Müller, 1785 and Sciaenophilus van Beneden, 1852 have both been treated as valid genera within the family Caligidae although numerous doubts have been expressed over the validity of the latter. The morphological evidence does not support generic level distinction and we recommend the transfer of all species currently placed in Sciaenophilus into Caligus as C. tenuis (van Beneden, 1852), C. pharaonis von Nordmann, 1832, C. nibeae Shen, 1957 and C. macrurus.


Asunto(s)
Copépodos/clasificación , Animales , Clasificación , Copépodos/anatomía & histología , Copépodos/ultraestructura , Branquias/parasitología , Mar Mediterráneo , Perciformes/parasitología , Faringe/parasitología , Especificidad de la Especie
9.
Syst Parasitol ; 93(8): 781-9, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27638733

RESUMEN

Two rare species of parasitic copepods belonging to the genus Lernanthropus de Blainville, 1822 (Siphonostomatoida: Lernanthropidae) are redescribed in detail, based on material collected from Red Sea fishes, caught at El-Tor, near Sharm El-Sheikh on the Red Sea coast of Egypt. Adult females of Lernanthropus sanguineus Song & Chen, 1976 were found on the gills of snapper Lutjanus fulviflamma (Forsskål). This species was known only from its original description based on material from Chinese waters. Adult females of Lernanthropus triangularis Pillai, 1963 were obtained from the gills of mojarra Gerres oyena (Forsskål). Both parasite species are new records for Egyptian Red Sea waters and both host records are new.


Asunto(s)
Copépodos/anatomía & histología , Copépodos/clasificación , Peces/parasitología , Animales , Egipto , Femenino , Branquias/parasitología , Especificidad de la Especie
10.
Syst Parasitol ; 93(2): 205-17, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26790683

RESUMEN

Two species of parasitic copepods from the genus Bomolochus von Nordmann, 1832 (Cyclopoida: Bomolochidae) are redescribed in detail, based on material collected from the gills of Red Sea fishes. Host material was caught at El-tor, near Sharm El-Sheikh, and in the Gulf of Suez, Egypt. Both sexes of Bomolochus bellones Burmeister, 1835 were collected from the gills of a needlefish Tylosurus choram (Rüppell) caught in the Gulf of Suez. This is a new host record. The female is well characterised so only the male is described. Adult females of Bomolochus minus Lin & Ho, 2005 were obtained from the branchial cavities and gills of mojarra Gerres oyena (Forsskål). This species was known only from its original description in Taiwan, and this report constitutes a new host record and a significant range extension. Both parasite species are new records for Egyptian Red Sea waters.


Asunto(s)
Copépodos/anatomía & histología , Copépodos/clasificación , Peces/parasitología , Animales , Egipto , Femenino , Masculino , Especificidad de la Especie
11.
Folia Parasitol (Praha) ; 622015 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-26449272

RESUMEN

Caligus brevicaudatus Scott, 1901, a common but poorly known species of parasitic copepod, is redescribed from newly collected specimens of both sexes. The new material was collected from the body surface of tub gurnards, Chelidonichthys lucerna (Linnaeus), caught in eastern Mediterranean waters off the Turkish coast. Inadequately described female structures from earlier descriptions are redescribed and illustrated in detail and the male of C. brevicaudatus is described for the first time. The new material of C. brevicaudatus is compared with material collected by A. Scott and stored in the collections of the Natural History Museum, London. In addition, a voucher specimen of Caligus uranoscopi Vaissière, 1955, stored in the collections of the Muséum National d'Histoire Naturelle in Paris is re-examined. Caligus uranoscopi is recognised as a junior subjective synonym of C. brevicaudatus since it does not differ in any substantive characters.

12.
Zookeys ; (497): 1-111, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25931959

RESUMEN

An identification guide is presented for species of calanoid copepod family Diaptomidae from "de la Plata" River Basin (Argentina, Brazil, Bolivia, Paraguay and Uruguay). It was based on material collected during the summer and winter of 2010 from 43 sites across the eastern part and the lower stretches of this basin, the second largest in South America and the fourth in the world. The guide contains identification keys and species diagnoses for males and females, richly supported by scanning electronic micrographs and/or line drawings of 19 species. It also includes some general remarks on the taxonomy and phylogenetic relationships of these species. The key was adjusted to be useful for these species only, with separate keys for each sex, and is the first for females of South America. One species classified herein as incertae sedis was not included in the analysis. At least ten other species have previously been recorded in the basin but were not present in our samples. This is the first attempt to compile comprehensive taxonomic information on this group of copepods in this region, and it is expected to become a useful tool for biologists and young taxonomists interested in the crustacean biota of the Neotropical region.

13.
Syst Parasitol ; 91(2): 157-65, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25962463

RESUMEN

Adults of both sexes of Naobranchia variabilis Brian, 1924 (Lernaeopodidae) are described based on material collected from the gill filaments of Balistes capriscus Gmelin, caught off the coast of Algeria. This is the second species of Naobranchia Hesse, 1863 to be found in the Mediterranean and the host record is new. Morphological comparisons are made with existing descriptions of N. variabilis and it is inferred, from small variations between material from different hosts and different localities, that N. variabilis may represent a species complex. The corrugated lobes on the head of Naobranchia females are interpreted as novel structures involved with temporary attachment during feeding.


Asunto(s)
Copépodos/clasificación , Copépodos/ultraestructura , Tetraodontiformes/parasitología , Argelia , Animales , Copépodos/anatomía & histología , Femenino , Branquias/parasitología , Masculino , Mar Mediterráneo , Microscopía Electrónica de Rastreo , Especificidad de la Especie
14.
Syst Parasitol ; 91(1): 81-90, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25862035

RESUMEN

Caligus ligusticus Brian, 1906 (Copepoda: Caligidae), a species of parasitic copepod originally based on females collected from off Genova, Italy, is redescribed based on newly collected specimens of both sexes. The new material was collected from the inner opercular surface of the sand steenbras Lithognathus mormyrus (Linnaeus) caught in eastern Mediterranean waters off the Turkish coast. Inadequately described female structures from earlier descriptions are re-described and illustrated in detail and the male of C. ligusticus is described for the first time. Key diagnostic characters of C. ligusticus are highlighted by scanning electron microscopy observations. A comparative study of the newly collected specimens of C. ligusticus and material collected by A. Brian and stored in the collections of the Muséum National d'Histoire Naturelle in Paris, is also presented.


Asunto(s)
Copépodos/clasificación , Copépodos/ultraestructura , Perciformes/parasitología , Animales , Femenino , Masculino , Mar Mediterráneo , Microscopía Electrónica de Rastreo , Especificidad de la Especie , Turquia
15.
Syst Parasitol ; 90(2): 113-24, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25655111

RESUMEN

A new genus and species of parasitic copepod, Gadilicola daviesi n. g., n. sp., is described based on material found on two different scaphopod host species collected in deep water (2,900-2,910 m) in the Rockall Trough, North East Atlantic. The copepods inhabit the posterior mantle cavity of their scaphopod hosts, Polyschides olivi (Sacchi) and Pulsellum lofotense (M. Sars). Both sexes are described. The female body comprises an unsegmented prosomal trunk and a 2-segmented urosome and is more modified than that of the smaller male which comprises a 4-segmented prosome and 3-segmented urosome. The pattern of sexual dimorphism of the appendages is characteristic of the poecilostomatoid families within the order Cyclopoida. The form of the antenna with the major claws on the second endopodal segment and with the third segment reduced and displaced laterally, is shared with the informal Teredicola-group of genera, but it lacks the distinctive, derived form of mandible shared by these genera. The new genus is treated as the type of a new monotypic family, the Gadilicolidae.


Asunto(s)
Copépodos/clasificación , Moluscos/parasitología , Animales , Océano Atlántico , Copépodos/anatomía & histología , Copépodos/fisiología , Femenino , Masculino , Especificidad de la Especie
16.
Syst Parasitol ; 89(1): 23-32, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25079813

RESUMEN

A new species of caligid copepod, Caligus solea n. sp., is described from the common sole Solea solea (Linnaeus) caught off the north-eastern Mediterranean coast of Turkey. Both sexes of the parasite were collected from all over the upper body surface of its host. The new species belongs to the macarovi-group of species as established by Boxshall & Gurney (Bull Br Mus (Nat Hist) (Zool), 39:161-178, 1980), with which it shares the following four characters: (i) leg 4 with two-segmented exopod, distal segment carrying three apical spines but no lateral spine; (ii) distal exopodal segment of leg 1 with three plumose setae posteriorly plus four distal margin elements, spine 1 naked, spines 2 and 3 with accessory process and spine 4 about twice length of the others; (iii) females with one-segmented abdomen while males with two-segmented abdomen; (iv) male maxilliped with myxal process opposing the tip of the subchela. However, the new species differs from its congeners within the macarovi-group in the number of sensillae on each papilla on and around the postantennal process, and also in the absence of serrations along the distal margin of the maxilla. This is the twenty-eighth species of Caligus to be reported from the Mediterranean Sea.


Asunto(s)
Copépodos/clasificación , Peces Planos/parasitología , Filogenia , Animales , Mar Mediterráneo , ARN Ribosómico 28S , Especificidad de la Especie , Turquia
17.
Syst Parasitol ; 87(2): 111-26, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24474035

RESUMEN

A new bomolochid copepod belonging to the genus Nothobomolochus Vervoort, 1962 is described from a Red Sea fish species, a ponyfish of the family Leiognathidae that has become established in the Eastern Mediterranean. The new species, N. leiognathicola n. sp., is based on material obtained from the gill chamber of the Red Sea immigrant ponyfish Leiognathus klunzingeri (Steindachner), caught in Egyptian waters off the Alexandria coast at Abuqir. A second new species, N. monodi n. sp., is established to accommodate some material previously described as N. denticulatus (Bassett-Smith, 1898), from the host Hemiramphus far Forsskål. A review of host records reveals that Nothobomolochus species utilise hosts representing five different orders, but are most commonly found on beloniform, clupeiform and perciform fishes. A newly constructed key to the 37 valid species of Nothobomolochus is presented.


Asunto(s)
Copépodos/anatomía & histología , Copépodos/clasificación , Perciformes/parasitología , Animales , Egipto , Femenino , Enfermedades de los Peces/parasitología , Interacciones Huésped-Parásitos , Mar Mediterráneo , Especificidad de la Especie
18.
Syst Parasitol ; 86(2): 173-85, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24048749

RESUMEN

There is increasing interest in the common sole, Solea solea (Linnaeus), as an alternative fish species in aquaculture in the Mediterranean region, and parasitic copepods are a potential hazard for farmed finfish. This paper provides taxonomic information on two species of sea lice (family Caligidae) collected from S. solea in eastern Mediterranean waters off the Turkish coast. Caligus brevicaudatus A. Scott, 1901 and Caligus apodus (Brian, 1924) were both found and this is the first report of C. brevicaudatus in Turkish waters. The discovery of C. apodus on S. solea is a new host record. Key diagnostic characters of both species are reported, supported by light and scanning electron microscopy observations. During a 12-month survey a prevalence of 28% was recorded for C. brevicaudatus, whereas for C. apodus peak prevalence was much lower (3%).


Asunto(s)
Copépodos/clasificación , Copépodos/fisiología , Peces Planos/parasitología , Animales , Copépodos/ultraestructura , Enfermedades de los Peces/epidemiología , Enfermedades de los Peces/parasitología , Mar Mediterráneo/epidemiología , Microscopía Electrónica de Rastreo , Prevalencia , Especificidad de la Especie , Turquia/epidemiología
19.
Parasite ; 20: 15, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23647664

RESUMEN

The developmental stages of the sea louse Lepeophtheirus elegans (Copepoda: Caligidae) are described from material collected from marine ranched Korean rockfish, Sebastes schlegelii. In L. elegans, setal number on the proximal segment of the antennule increases from 3 in the copepodid to 27 in the adult. Using the number of setae as a stage marker supports the inference that the post-naupliar phase of the life cycle comprises six stages: copepodid, chalimus I, chalimus II, pre-adult I, pre-adult II, and the adult. We observed variation in body length in both of the chalimus stages which we consider represents an early expression of sexual size dimorphism. We interpret the larger specimens of chalimus I as putative females, and the smaller as putative males; similarly with chalimus II, larger specimens are putative females and the smaller are males. Two patterns of life cycle are currently recognized within the Caligidae but the evidence presented here reconciles the two. We conclude that the typical caligid life cycle comprises only eight stages: two naupliar, one copepodid, and four chalimus stages preceding the adult in Caligus, but with the four chalimus stages represented by two chalimus and two pre-adult stages in Lepeophtheirus. This is a profound change with significant implications for the aquaculture industry, given that lice monitoring protocols include counts of chalimus stages and use temperature to predict when they will moult into the more pathogenic, mobile pre-adults. Lice management strategies must be tailored to the precise life cycle of the parasite.


Asunto(s)
Copépodos/crecimiento & desarrollo , Infestaciones Ectoparasitarias/veterinaria , Enfermedades de los Peces/parasitología , Estadios del Ciclo de Vida , Perciformes/parasitología , Animales , Copépodos/anatomía & histología , Infestaciones Ectoparasitarias/parasitología , Femenino , Masculino , Microscopía de Interferencia , Caracteres Sexuales
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