genetic and antigenic analysis of betanodaviruses isolated from aquatic organisms in taiwan. | viral nervous necrosis (vnn) is a worldwide disease among marine fishes. in taiwan, nnn disease was first identified in 2 species of hatchery-reared grouper, epinephelus fuscogutatus and e. akaaya in 1994. since then, increasing mortalities have occurred among groupers epinephelus spp., and also among european eels anguilla anguilla l., yellow-wax pompano trachinotus falcatus, firespot snapper lutaanus erythropterus b., barramundi lates calcarifer, cobias rachycentron canadum, humpback groupers ... | 2003 | 13677508 |
deuteromycotic fungi infecting barramundi cod, cromileptes altivelis (valenciennes), from australia. | | 2003 | 14710761 |
two new blood flukes (digenea: sanguinicolidae) from epinephelinae (perciformes: serranidae) of the pacific ocean. | pearsonellum pygmaeus n. sp. is described from cromileptes altivelis (serranidae), the barramundi cod, from heron island (southern great barrier reef) and lizard island (northern great barrier reef). this new species differs from pearsonellum corventum (type and only species) in the combination of smaller overall body size, the relative distance of the brain from the anterior end, the relative lengths of both the oesophagus and the testis, the degree to which the testis extends outside the inter ... | 2004 | 15464442 |
molecular phylogenetic relationships of china seas groupers based on cytochrome b gene fragment sequences. | the classification and evolutionary relationships are important issues in the study of the groupers. cytochrome b gene fragment of twenty-eight grouper species within six genera of subfamily epinephelinae was amplified using pcr techniques and the sequences were analyzed to derive the phylogenetic relationships of the groupers from the china seas. genetic information indexes, including kimura-2 parameter genetic distance and ts/tv ratios, were generated by using a variety of biology softwares. w ... | 2006 | 16856492 |
histopathological and ultrastructural features of enlarged cells of humpback grouper cromileptes altivelis challenged with megalocytivirus (family iridoviridae) after vaccination. | the genus megalocytivirus in the family iridoviridae encompasses isolates of red sea bream iridovirus (rsiv) and grouper sleepy disease iridovirus (gsdiv). in the present study, humpback grouper cromileptes altivelis juveniles were challenged with gsdiv after vaccination with a commercial rsiv vaccine. the unvaccinated group (in duplicate) showed higher mortalities (59.3 to 66.7%) than the vaccination group (0% mortalitiy, in duplicate). surviving fish in the vaccinated group displayed masses of ... | 2008 | 18500034 |
prosorhynchine trematodes (digenea: bucephalidae) from epinephelines (perciformes: serranidae) on the great barrier reef, australia. | six new species of bucephalid trematodes from the prosorhynchine bucephalid genera prosorhynchus odhner, 1905 and neidhartia nagaty, 1937 are reported from the epinepheline genera cephalopholis, cromileptes, epinephelus and variola on the great barrier reef, australia. two species of prosorhynchus and one of neidhartia are reported from epinephelus spp., p. jexi n. sp. from e. quoyanus, p. lafii n. sp. from e. fuscoguttatus and n. epinepheli n. sp. from e. maculatus. the other three new species ... | 2009 | 19048407 |
phylogenetic analysis of betanodavirus isolates from australian finfish. | in australia, disease caused by betanodavirus has been reported in an increasing number of cultured finfish since the first report of mortalities in 1990. partial coat protein gene sequences from the t2 or t4 regions of 8 betanodaviruses from barramundi lates calcarifer, sleepy cod oxyeleotris lineolata, striped trumpeter latris lineata, barramundi cod cromileptes altivelis, australian bass macquaria novemaculata and gold-spotted rockcod epinephelus coioides from several australian states were d ... | 2009 | 20099409 |
susceptibility of juvenile humpback grouper cromileptes altivelis to grouper sleepy disease iridovirus (gsdiv). | susceptibility of juvenile humpback grouper cromileptes altivelis to the grouper sleepy disease iridovirus (gsdiv) was examined. gsdiv-containing inocula for challenge were obtained using a filtrate of spleen tissues from donor fish (orange-spotted grouper epinephelus coioides) infected with gsdiv. groups injected with the primary filtrate showed lower mortalities (30 to 60%) than groups receiving the 10(-4) diluted inoculum (90 to 100% mortality). this result was contrary to the expectation tha ... | 2004 | 15212286 |
complete mitochondrial genome of the humpback grouper cromileptes altivelis. | the complete mitochondrial genome (16,497 bp) of the humpback grouper cromileptes altivelis is first presented in this study. the gene arrangement and translate orientation of c. altivelis is identical to most vertebrates, including 13 protein-coding genes, 2 ribosomal rna genes, 22 transfer rna genes and a putative control region. the overall nucleotide composition of the h-strand is 29.80% a, 26.23% t, 15.67% g and 29.02% c. the origin of the light-strand replication was identified between the ... | 2014 | 23795837 |
pseudorhabdosynochus argus n. sp. (monogenea: diplectanidae) from cephalopholis argus, p. minutus n. sp. and diplectanum nanus n. sp. from c. sonnerati and other monogeneans from cephalopholis spp. (perciformes: serranidae) off australia and new caledonia. | monogeneans from three species of cephalopholis, namely c. argus, c. sonnerati and c. boenak, are described from fish caught off new caledonia, south pacific, with comparisons with material from off queensland, australia. pseudorhabdosynochus argus n. sp. from c. argus is present off new caledonia and australia; it is characterised by its male quadriloculate organ with very elongate cone, and its sclerotised vagina with anterior trumpet, coiled primary canal and distal part with two chambers and ... | 2007 | 17896188 |
sex change strategy and the aromatase genes. | sequential hermaphroditism is a common reproductive strategy in many teleosts. steroid production is known to mediate both the natural and induced sex change, yet beyond this the physiology directing this process has received little attention. cytochrome p450 aromatase is a key enzyme in the hormonal pathway catalysing the conversion of sex steroids, androgens to oestrogens, and thus is highly relevant to the process of sex change. this study reports the isolation of cdna sequences for aromatase ... | 2005 | 15876405 |