tion, two with the 4th, three with the 5th, and one with the 6th generation). The tests were done in a 15cm diameter Petri dish containing a layer of 1cm of pure agar (2g for 20ml of water) so the larvae could move. Nine 2cm circular holes, were opened in the agar eight being equally distant from the central hole (Fig.). We dropped melted agar in the newly opened holes, which after getting cold...

The present study was conducted to assess the effects of different feed regimes for nursing knife fish (Notopterus notopterus) larvae up 35 days. Larvae were reared in 50 L tank with Moina, Tubifex worm, and commercial powder substituted culture Feeding worms during found best growth rate survival fish. result obtained when fed 0-5 days 6-20 tubifex 21–35-day weight gain 0.31 g, length 2.36 cm,...

The aerobic intestinal microflora of 2-week-old herring (Clupea harengus) larvae was characterized by using conventional microbiological methods and electron microscopy. Larvae were hatched and kept in filtered seawater or in seawater with penicillin and streptomycin. The gastrointestinal tract of herring larvae is essentially a straight tube divided into two compartments. Light microscopy reve...

Anisakis simplex sensu stricto (s.s.), Anisakis pegreffii, Anisakis berlandi (=A. simplex sp. C), and Anisakis typica are the 4 major species of Anisakis type I larvae. In the Republic of Korea (Korea), A. pegreffii, A. berlandi, and A. typica larvae in fish hosts has seldom been documented. In this study, molecular analysis was performed on Anisakis larvae from the sea eels (Astroconger myrias...

The propagules of most species of reef fish are advected from the reef, necessitating a return to reef habitats at the end of the pelagic stage. There is increasing evidence of active attraction to the reef but the sensory abilities of reef fish larvae have not been characterized well enough to fully identify cues. The electrophysiological methods of auditory brainstem response (ABR) and electr...

The aim of this study was to evaluate the effect of environmentally realistic egg loadings of the polychlorinated biphenyl Aroclor 1254 on the subsequent growth and behavioural survival skills of Atlantic croaker Micropogonias undulatus larvae. Adult fish were given a dietary administration of 0 (control) or 0.4 (dosed) mg Aroclor 1254 kg–1 fish d–1 for 2 wk during the final stages of gonadal r...

Seasonality was a stronger influence in the ichthyoplankton assemblages around the Saint Peter and Saint Paul Archipelago (SPSPA) than distance from the islands. Plastic debris were ubiquitous and although it presented diel trends, no other spatiotemporal patterns was showed. Larval Oxyporhamphus micropterus was the most important taxa (29.37% of the total catch), followed by Ceratoscopelus war...

Aedes aegypti and albopictus are the carriers of a variety diseases such as dengue, dengue hemorrhagic fever (DHF), chikungunya, zika virus, yellow fever. An affordable way vector management that effectively suppresses mosquito population for long time is release larvivorous fish. In this work, ornamental fish species identified, their potential larvicidal efficacy biological control larvae ass...