نتایج جستجو برای: larval stages
تعداد نتایج: 205241 فیلتر نتایج به سال:
The grapsid crab Chasmagnathus granulata populates brackish-water lagoons and other estuarine environments. In its reproduction, this species follows a strategy of larval export, i.e. its larvae live under different salinity conditions from the juveniles and adults. In the present experimental investigation, ontogenetic changes in the capability for osmoregulation were studied in all 4 zoeal st...
BACKGROUND The barnacle Balanus amphitrite is a globally distributed biofouler and a model species in intertidal ecology and larval settlement studies. However, a lack of genomic information has hindered the comprehensive elucidation of the molecular mechanisms coordinating its larval settlement. The pyrosequencing-based transcriptomic approach is thought to be useful to identify key molecular ...
Anomura is a group of Malacostraca that constitute important communities of marine intertidal zone and deeper communities of benthic habitats. The larval stages differ among families of Anomura. In this investigation Anomura larval populations were sampled and studied from Iranian coastal waters of Persian Gulf in monthly basis from March to October 2011. Sampling process was conducted using su...
Changes in biomass and elemental composition (dry mass, W; carbon, C; nitrogen, N; hydrogen, H) were studied in the laboratory during complete larval and early juvenile development of the southern king crab, Lithodes santolla (Molina), formerly known as Lithodes antarcticus (Jacquinot). At 6F 0.5 jC, total larval development from hatching to metamorphosis lasted about 10 weeks, comprising three...
Gastrointestinal ontogenetic studies constitute one of the basic and important investigations related to the nutrition of aquatic animals. In this investigation, specimens of the western white shrimp (Litopenaeus vannamei) at different developmental stages (from nauplius 1 to postlarvae 120) were assayed for the activities of digestive enzymes. According to the results, at all developmental sta...
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