نتایج جستجو برای: اسکارسلطنتی astronatus ocellatus
تعداد نتایج: 506 فیلتر نتایج به سال:
The extent to which key biological processes, such as sex determination, respond to environmental fluctuations is fundamental for assessing species' susceptibility to ongoing climate change. Few studies, however, address how climate affects offspring sex in the wild. We monitored two climatically distinct populations of the viviparous skink Niveoscincus ocellatus for 16 years, recording environ...
The objective of this study was to evaluate meat yield and centesimal composition the Amazonian fish species, A. ocellatus, P. castelnaeana, L. friderici, in dry flood seasonal cycles rivers. In each cycle (flood dry), a total 60 were collected, comprising 20 specimens following species: friderici. Were evaluated yield, cuts samples. Meat clean body skinless filet varied between species hydrolo...
There is limited information on the physiological consequences associated with exposure to xenoestrogens under field conditions. The objectives of this study were to determine the presence of estrogenic chemicals in the St. Lawrence River and their effects on male reproduction in the spottail shiner (Notropis hudsonius). Hepatic vitellogenin (VTG) mRNA levels in immature shiners indicate extens...
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