Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 8

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The cymothoid isopod Elthusa epinepheli sp. nov., a branchial parasite of the blacksaddle grouper Epinephelus howlandi (Serranidae, Epinephelinae) from the coral reef of New Caledonia (Southwestern Pacific), is described and figured.Within the genus, E. epinepheli shows some similarity with E. raynaudii and E. myripristae. The ovigerous female of E. epinepheli can be distinguished from E. raynaudii by a less ovate body; cephalon deeply immersed in pereonite 1; eyes almost concealed by the amphicephalic processes; pereonites 3–7 distinctly decreasing in size (width and length); pleonites 1–5 distinctly increasing in width; and pleotelson larger. E. epinepheli can be distinguished from E. myripristae by the anterior margin of the cephalon being rounded in dorsal view and all pleonites being visible. E. epinepheli is the first species of Elthusa reported from the host genus Epinephelus.
Three species of Cymothoidae (Crustacea, Isopoda), Emetha audouini, Ceratothoa collaris and C. steindachneri are here reported from Algeria. The presence of E. audouini and C. collaris is confirmed there and these two species are reported for the first time from Béjaïa, Jijel and Annaba. Ceratothoa steindachneri is new for the Algerian fauna. Ceratothoa oestroides, C. parallela, C. oxyrrhynchaena, Anilocra frontalis, A. physodes and Nerocila bivittata are also recorded. New hosts are identified for C. parallela, C. steindachneri, A. frontalis and A. physodes as well as those of E. audouini. Three species of Aegidae, Aega rosacea, A. deshaysiana and Aega sp. are recorded. The presence of the first is reported for the first time in Algeria and that of the second is confirmed there. For each one of these species, potential preys are identified.
Caligus uranoscopi Vaissière, 1955 (Copepoda, Caligidae) is redescribed based on specimens collected from the gill arches of red mullet, Mullus barbatus barbatus L., 1758, caught off the Algerian coast. Caligus uranoscopi is reported for the first time from the east coast of Algeria and M. barbatus barbatus is a newly recorded host for this parasite. The parasite is uncommon and may be restricted to Algerian coasts. Some remarks are given on the species of Caligidae known from Algeria.
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.
Four cymothoid isopods, parasites of fishes, are reported from India. Two new species, Nerocila poruvae and Joryma hilsae are described. A full description of Nerocila longispina Miers, 1880 is included and two hosts are identified. The distribution and hosts of Anilocra dimidiata Bleeker, 1857 are updated. Nerocila poruvae, N. longispina and Anilocra dimidiata were collected from the Southeastern coasts of India and Joryma hilsae from the Southwestern coasts.
A checklist of the parasitic Cymothoidae of Indian fishes was compiled from parasitological records published between 1783 and 2011. The checklist is arranged alphabetically, providing valid names, synonyms and authorities of the parasite species, as well as valid names and synonyms of the host fish, its capture sites, author(s) and date of published records. The host list consists of all parasites species listed under the host species. A total of 47 nominal species corresponding to 36 valid species are listed from 74 host species belonging to 34 families. Several parasites not identified to species level and parasite species without the host data or where the parasite was found not associated with a fish are also included in this checklist.
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.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.