| mycobacteriosis in wild rabbitfish siganus rivulatus associated with cage farming in the gulf of eilat, red sea. | infection patterns of mycobacterium marinum were studied over a period of 3 yr in wild rabbitfish siganus nivulatus populations associated with commercial mariculture cages and inhabiting various sites along the israeli red sea coastline. mycobacteriosis was first recorded from the red sea in 1990 in farmed sea bass dicentrarchus labrax and is absent from records of studies on parasites and diseases of wild rabbitfish carried out in the 1970s and 1980s. a sharp increase in the prevalence of the ... | 2000 | 10768289 |
| co-invasion of a red sea fish and its ectoparasitic monogenean, polylabris cf. mamaevi into the mediterranean: observations on oncomiracidium behavior and infection levels in both seas. | this study investigated aspects of the biology of the monogenean gill ectoparasite polylabris cf. mamaevi (polyopisthocotylea: microcotyleae) infecting rabbitfish, siganus rivulatus (forskal) (teleostei: siganidae). both host and parasite are lessepsian immigrants that have co-invaded the mediterranean sea via the suez canal. the infection prevalence and mean intensity of the polyopisthocotylean was examined in both native and immigrant host populations and found to be three times greater in the ... | 2007 | 17096147 |
| dactylogyrids (monogenoidea) parasitizing the gills of spinefoots (teleostei: siganidae): proposal of glyphidohaptor n. gen., with two new species from the great barrier reef, australia, and g. plectocirra n. comb. from ras mohammed national park, egypt. | nine species of siganus (perciformes: siganidae) were examined for dactylogyrids (monogenoidea) from the red sea, egypt; the great barrier reef, australia; and the south china sea, china. species of tetrancistrum were found on siganids from all 3 localities; pseudohaliotrema spp. were restricted to siganids from the great barrier reef; and species representing glyphidohaptor n. gen. were found on siganids from the red sea and great barrier reef. siganus argenteus from the red sea and siganus vul ... | 2007 | 17436940 |
| zschokkella helmii n. sp. (myxozoa: myxosporea), a new parasite of marbled spinefoot siganus rivulatus (forsskal 1775), red sea, egypt: light and transmission electron microscopy. | zschokkella helmii n. sp., a new parasite of siganus rivulatus from the red sea, egypt, was described using light and transmission electron microscopy. however, the infection was severe; single "histozoic" plasmodium was encountered in the gallbladder wall. spores are ellipsoid with 9-11 valvar striations. spore mean length is 10.8 microm (10.0-11.0), while the spore mean width is 7.5 microm (7.0-8.0). polar capsules are nearly round with a diameter of 2.2 microm (2.0-3.0) and have five filament ... | 2008 | 17938963 |
| biomonitoring study of heavy metals in biota and sediments in the south eastern coast of mediterranean sea, egypt. | concentrations of cd, cu, co, zn, mn and fe were determined in biota and sediment samples collected from the eastern harbour and el-mex bay in the mediterranean sea, egypt. the levels of cu, co, zn, mn and fe in the macroalgae, ulva lactuca, enteromorpha compressa (green algae) and jania rubens (red algae), recorded high concentrations except for cd. moreover, fe was the most predominant metal in the seaweed. the two species of bivalves, donax trunculus and paphia textile, showed different amoun ... | 2008 | 18074236 |
| seasonal changes in phosphorus content of fish tissue as they relate to diets of renal patients. | to investigate seasonal variations in tissue phosphorus (p) levels, p to protein ratio, and p to omega-3 fatty acid (ω3-fa) ratio in 2 species of fish that are commonly consumed in lebanon. we aim to determine suitability for dietary management of renal patients. | 2012 | 21741860 |
| ortholinea saudii sp. nov. (myxosporea: ortholineidae) in the kidney of the marine fish siganus rivulatus (teleostei) from the red sea, saudi arabia. | myxozoans, a diverse group of microscopic obligate endoparasites, can cause diseases in a number of economically important fish, including the marbled spinefoot siganus rivulatus. to date, only 1 myxozoan, zschokkella helmii, has been reported to infect s. rivulatus. here we describe another myxozoan detected in s. rivulatus. investigations of 40 marbled spinefoot fish caught from the red sea coast, jeddah, saudi arabia, revealed clusters of parasitic spores in the kidney. light microscope exami ... | 2015 | 25667333 |
| ultrastructural and genetic diversity studies of two sclerocollum (acanthocephala) species infecting siganid and lutianid fishes from the red sea, egypt. | little is known about the distribution of acanthocephala in local waters. a survey was carried out on the commercially important herbivorous siganid fish, siganus rivulatus and s. luridus, as well as lutianid fish centropristisfilamentosus inhabiting the red sea to determine the prevalence of acanthocephala parasites. one hundred and thirteen fish were examined. the infection rates of s. rivulatus and s. luridus with sclerocollum rubrimaris schmidt and paperna 1978 (rhadinorhynchidae: gorgorhync ... | 2006 | 17153712 |