[Show abstract][Hide abstract] ABSTRACT: A total of 455 Boops boops (Linnaeus, 1758) and 953 Trachurus trachurus Linnaeus, 1758 from the east coast of Algeria were examined for their parasitic Nematoda. Two hundred ninety-five specimens of larval stages L3 and L4 were collected from the peritoneal cavity of these two examined fishes. Photonic and scanning electronic microscopy (SEM) studies were performed on these larvae specimens in order to characterize their morphology. Two different species of Nematoda (Anisikidae) were identified: Anisakis simplex (Rudolphi, 1809) and Hysterothylacium aduncum (Rudolphi, 1802). These two parasitic species were reported for the first time on T. trachurus and B. boops from the eastern coast of Algeria. These parasites were attached on different organs in the abdominal cavity (particularly on ovaries and testes). The infestation rate changed according to the month and the host size. The parasitism did not show a significant negative impact on the condition of the examined fishes.
Parasitology Research 07/2015; 114(11). DOI:10.1007/s00436-015-4633-6 · 2.10 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: This study was conducted from August 2013 to January 2014. Host fishes were collected from the Nagapattinam Coast, India. During the sampling period, 242 fishes were infested out of 1440 specimens examined from nine different species of marine fishes. A total of 267 parasitic isopods belonging to nine cymothoid species viz., Anilocra dimidiata (Bleeker 1857), Catoessa boscii (Bleeker 1857), Cymothoa indica (Schioedte and Meinert 1884), Joryma sawayah (Bowman and Tareen 1983), Nerocila arres (Bowman and Tareen 1983), N.loveni (Bovallius 1887) N. phaiopleura (Bleeker 1857), N. serra (Schioedte and Meinert 1881) and N.sundaica (Bleeker 1857) were collected. The Nerocila species were attached to the pectoral fin, the caudal peduncle and different regions of the body surface of the host fishes. The specimen belonging to the species Catoessa
Cymothoa indica and Joryma sawayah were collected from the mouth and the branchial cavity of the infected fishes. Anilocra dimidiata was only found on the body surface of the host fish. The overall prevalence reached 16.80 %. A maximum prevalence was observed in C. boscii parasitizing Carangoides malabaricus (26.81 %) and a minimum prevalence in N. sundaica parasitizing Terapon puta (P = 7.31 %). The mean intensity ranged from 1 to 1.3.
Journal of parasitic diseases 11/2014; DOI:10.1007/s12639-014-0610-8
[Show abstract][Hide abstract] ABSTRACT: Simultaneous multiple infestation of parasitic crustacean species involving a cymothoid isopod, Cymothoa
frontalis Milne Edward, 1840 and four species of copepods such as Lernanthropus tylosuri Richiardi, 1880,
Caligodes lacinatus Kroyer, 1863, Bomolochus bellones Burmeister, 1833 and Dermoergasilus coleus Cressey &
Collette, 1970 was frequently noticed on spot-tail needlefish, Strongylura strongylura (Belonidae) captured
from the Malabar coast (Kerala, India) during the period from April 2011 to March 2012. All the 43 fishes
(Strongylura strongylura) collected, were under the hyper-infection with parasitic crustaceans; a total of 388
parasitic crustaceans including 57 C. frontalis, 252 L. tylosuri, 31 C. lacinatus, 24 B. bellones and 32 D. coleus
were recovered from the host fish. 4 members (9.30%) of host fish were under quadruple parasitism, in two
different combinations. Seventeen (39.53%) host fishes showed triple parasitism and 20 (46.51%) members
exhibited double parasitism, with four and five parasitic combinations respectively. Remaining two (4.65%)
fishes were parasitized only by the copepod, L. tylosuri. The infestations by all recovered parasitic crustaceans
were highly site specific. The damage caused by the parasitic crustaceans was also discussed.
Isopod, Copepod, quadruple parasitism, triple parasitism, double parasitism, Strongylura strongylura
[Show abstract][Hide abstract] ABSTRACT: A study of the Algerian Branchiura, Argulus vittatus (Rafinesque-Schmaltz, 1814) was conducted using the scanning electron microscopy (SEM). New morphological features are reported for the first time (mouth con, first maxilla, second maxilla, structures and ornamentation of thoracic segments, structure of semen papillae, etc.). The morphology of small and large female specimens was compared. Two new hosts, Pagellus erythrinus L. and Sparus aurata L., are reported for this species. Until now, six host species were reported for A. vittatus, and stenoxenic specificity for Sparid fishes was observed for Algerian specimens. The biogeographical distribution of this species seems to be restricted to the eastern coast of Algeria. Additional information about the host specificity, ecology, and life cycle of this parasitic species were given.
Parasitology Research 04/2014; 113(6). DOI:10.1007/s00436-014-3881-1 · 2.10 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Totally 384 Mothocya plagulophora were collected
in the branchial cavities of Hemiramphus far from
the Southeast coast of India during the study period (from
July to September 2013). 204 parasites were found in the
left branchial cavity and 180 in the right one. The maximum
prevalence was observed in July 2013 and the minimum
in September 2013. The intensity ranged from a
minimum value (1.3) in July and August to a maximum
(1.4) in September 2013. In most cases, the parasite was
located between the second and the third branchial arch,
attached either to the vomerine arch or to the internal wall
of the branchial operculum.
Journal of parasitic diseases 02/2014; DOI:10.1007/s12639-014-0438-2
[Show abstract][Hide abstract] ABSTRACT: Several Nerocila species appear to have little or
no host specificity. However, in India, Nerocila sundaica
was found to be attached to the pectoral fin or on the body
of the fish Otolithes ruber. During October 2013, the parasitic
prevalence reached 42.2 % and the Mean intensity
was equal to 1. The infected host fish’s size ranged from
12.5 to 17.2 cm. Moreover, slight tissue damages were also
observed in the host fish.
Journal of parasitic diseases 02/2014; DOI:10.1007/s12639-014-0439-1
[Show abstract][Hide abstract] ABSTRACT: Tumors of the head and neck present aggressive pathological behavior in patients due to high
expression of CDK/CCND1 proteins. P276-00, a novel CDK inhibitor currently being tested
in clinic, inhibits growth of several cancers in vitro and in vivo. The pre clinical activity of
P276-00 in head and neck cancer and its potential mechanisms of action at molecular level
are the focus of the current studies.
[Show abstract][Hide abstract] ABSTRACT: Two hundred and twenty samples of Rastrelliger
kanagurta from the Cochin Fisheries Harbour were
collected during the month of August 2013. Forty-one
specimens (32 females and 9 males) were parasitized by
the cymothoid isopod Norileca indica. N. indica is recorded
for the first time from the west coast of India.
Journal of parasitic diseases 01/2014; DOI:10.1007/s12639-014-0416-8
[Show abstract][Hide abstract] ABSTRACT: The presently reported study investigated seasonal fluctuations in the prevalence in four species of Nerocila infesting com-mercially exploited marine fishes representing the families Engraulidae, Clupeidae and Ambassidae, from the Malabar coast (Kerala, India). Seven of 56 fish species belonging to 23 families were infested by either one or two species of Nerocila. All the collected Nerocila species showed significant seasonal fluctuations in the prevalence of infestation, reaching maximum from October through April and minimum (or total absence of the parasites) from May through September. Such fluctuations were analyzed based on environmental parameters. Body surface, postero-ventral side of the head and the lateral line of the host fish form the major infestation site for the recovered Nerocila species. Skin lesion and hemorrhages were observed on the fish parasitized with these cymothoids.
[Show abstract][Hide abstract] ABSTRACT: The presently reported study investigated seasonal fluctuations in the prevalence in four species of Nerocila infesting commercially exploited marine fishes representing the families Engraulidae, Clupeidae and Ambassidae, from the Malabar coast (Kerala, India). Seven of 56 fish species belonging to 23 families were infested by either one or two species of Nerocila. All the collected Nerocila species showed significant seasonal fluctuations in the prevalence of infestation, reaching maximum from October through April and minimum (or total absence of the parasites) from May through September. Such fluctuations were analyzed based on environmental parameters. Body surface, postero-ventral side of the head and the lateral line of the host fish form the major infestation site for the recovered Nerocila species. Skin lesion and hemorrhages were observed on the fish parasitized with these cymothoids.
[Show abstract][Hide abstract] ABSTRACT: Eleven Nerocila species are recorded from 22 marine fishes belonging to 15 families. Three, Nerocila arres, Nerocila depressa, and Nerocila loveni, are new for the Indian fauna. N. arres and Nerocila sigani, previously synonymized, are redescribed and their individuality is restored. Nerocila exocoeti, until now inadequately identified, is described and distinctly characterized. A neotype is designated. New hosts were identified for N. depressa, N. loveni, Nerocila phaiopleura, Nerocila serra, and Nerocila sundaica. Host–parasite relationships were considered. The parasitologic indexes were calculated. The site of attachment of the parasites on their hosts was also observed. A checklist of the nominal Nerocila species until now reported from Indian marine fishes was compiled.
Electronic supplementary material
The online version of this article (doi:10.1007/s00436-012-3263-5) contains supplementary material, which is available to authorized users.
Parasitology Research 01/2013; 112(3). DOI:10.1007/s00436-012-3263-5 · 2.10 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Background
Coral reefs are areas of maximum biodiversity, but the parasites of coral reef fishes, and especially their species richness, are not well known. Over an 8-year period, parasites were collected from 24 species of Lutjanidae, Nemipteridae and Caesionidae off New Caledonia, South Pacific.
Host-parasite and parasite-host lists are provided, with a total of 207 host-parasite combinations and 58 parasite species identified at the species level, with 27 new host records. Results are presented for isopods, copepods, monogeneans, digeneans, cestodes and nematodes. When results are restricted to well-sampled reef fish species (sample size > 30), the number of host-parasite combinations is 20–25 per fish species, and the number of parasites identified at the species level is 9–13 per fish species. Lutjanids include reef-associated fish and deeper sea fish from the outer slopes of the coral reef: fish from both milieus were compared. Surprisingly, parasite biodiversity was higher in deeper sea fish than in reef fish (host-parasite combinations: 12.50 vs 10.13, number of species per fish 3.75 vs 3.00); however, we identified four biases which diminish the validity of this comparison. Finally, these results and previously published results allow us to propose a generalization of parasite biodiversity for four major families of reef-associated fishes (Lutjanidae, Nemipteridae, Serranidae and Lethrinidae): well-sampled fish have a mean of 20 host-parasite combinations per fish species, and the number of parasites identified at the species level is 10 per fish species.
Since all precautions have been taken to minimize taxon numbers, it is safe to affirm than the number of fish parasites is at least ten times the number of fish species in coral reefs, for species of similar size or larger than the species in the four families studied; this is a major improvement to our estimate of biodiversity in coral reefs. Our results suggest that extinction of a coral reef fish species would eventually result in the coextinction of at least ten species of parasites.
[Show abstract][Hide abstract] ABSTRACT: Catoessa boscii (Bleeker, 1857) (Crustacea, Isopoda, Cymothoidae), is redescribed according to the type specimen observed by Schioedte and Meinert (1884) extant in the Rijksmuseum von Natuurlijke Historie, Leiden (RMNH) and from many additional specimens recently collected in India from Carangoides malabaricus (Pisces, Carangidae). This study allows an updating of the diagnosis of the genus Catoessa and of the species Catoessa boscii. Some parasite-host relationships were studied during the year. Prevalence and sex ratio of parasites varied according to the month, and the sex and size of hosts.
[Show abstract][Hide abstract] ABSTRACT: In this study, a massive infestation of the sea
snake Enhydrina schistosa by the cymothoid isopod Nerocila
serra, commonly parasitizing fishes, is reported for the
first time from India. This isopod was found attached on the
different parts of the body of the snake. According to the
month, the parasitic prevalence ranged from 30.8 to 55.3%,
increasing during the monsson period. It was higher in
female than in male snakes.
Parasitology Research 06/2012; 108(6). DOI:10.1007/s00436-011-2795-4 · 2.10 Impact Factor