Experimental studies have demonstrated that for many marine invertebrate species, variability in larval condition or quality at settlement may have important effects on post-settlement, early juvenile performance. Relatively few studies, however, explicitly examine natural variability in larval condition at settlement. This study examines natural variability in larval attributes (size and lipid...

I n this chapter we will start out by describing in more detail the progenitors of the nervous system, the neuroblasts and ganglion mother cells.Subsequentlywe will survey the generic cell types that make up the developing Drosophila brain, namely neurons, glial cells and tracheal cells.Finally,we will attempt a synopsis ofthe neuronal connectivity ofthe larval brain that can be deduced from th...

We have tested the hypothesis that larval neurones guide growth of adult sensory axons in Drosophila. We show that ablation of larval sensory neurones causes defects in the central projections of adult sensory neurones. Spiralling axons and ectopic projections indicate failure in axon growth guidance. We show that larval sensory neurones are required for peripheral pathfinding, entry into the C...

The larval development of Dugastella valentina consists of two zoeal stages and a decapodid. Larval stages are not free living; the complete larval development takes place in the female’s incubation chamber. The two zoeae, the decapodid and first postlarval stages still have a large amount of yolk, which ensures their nutritional independence (lecithotrophic stages) while staying within the mat...

Understanding the functional linkages between the pelagic and demersal stages of marine organisms is a central goal in ecology. To better understand events that occurred during the larval period as well as their initial influence on juvenile traits, we examined individual level variation in early life-history traits (larval and early juvenile otolith growth rates, size-at-age, and larval durati...

the feeding habit and developmental stages of cunaxa setriostris (hermann) on most injurious mite, tetranychus ludeni zacher was investigated in varanasi region, uttar pradesh, india. the female of c. setirostris as a dominant species of cunaxid mite completed its life cycle on t. ludeni within 27.5 ± 13.55 days having one larval followed by three nymphal stages. whereas, the male sex of the sa...

During the larval stages, the visual system of the mosquito Aedes aegypti contains five stemmata, often referred to as larval ocelli, positioned laterally on each side of the larval head. Here we show that stemmata contain two photoreceptor types, distinguished by the expression of different rhodopsins. The rhodopsin Aaop3 (GPROP3) is expressed in the majority of the larval photoreceptors. Ther...

Background: Nasal myiasis, a type of cavitary is an infestation parasitic insect larvae or eggs in the nasal cavity human body. The risk myiasis increases individuals with immunocompromised such as diabetes mellitus (DM). aim this study was to report rare case patient DM. Case Presentation: A 54-year-old female referred Dr. Soetomo General Hospital Surabaya chief complaint spontaneous anterior ...

Maggot debridement therapy is the introduction of live and disinfected fly larvae in a wound order to aid cleaning healing. This technique was discovered as beneficial effect colonization human tissue by (myiasis). discovery made during World War I when it observed that injured soldiers whose wounds were infested with maggots healed faster than their counterparts free from maggots. In this ther...

The extraordinary diversity of larval form and function in marine invertebrates has motivated many studies of development, ecology, and evolution. Among organisms with pelagic development via a larval stage, this diversity is often reduced to a dichotomy between two broad nutritional categories: planktotrophy and lecithotrophy. Despite the clear utility of the planktotrophy-lecithotrophy dichot...