Biological flows are vital for the conservation of life and indispensable necessities of living organisms. Morphological structures of living organisms and biological flow phenomena in nature have been evolved through long history. The basic physics of several biofluid flow phenomena in nature, such as blood flow in chicken embryos, blood sucking of mosquitoes, and sap flows in plants have been...

The 34-million-year (My) interval of the Late Triassic is marked by the formation of several large impact structures on Earth. Late Triassic impact events have been considered a factor in biotic extinction events in the Late Triassic (e.g., end-Triassic extinction event), but this scenario remains controversial because of a lack of stratigraphic records of ejecta deposits. Here, we report evide...

Water is one of the most natural resources for all the living organisms, weather unicellular or multi cellular, since it is required for various domestic purposes irrigation, power generation and industries. In a freshwater system, the zooplankton forms are important group and constitute basic link of the food chain. Planktons are very sensitive to the environment they live in and any alteratio...

Siliceous planktons are valuable indicators of the environmental conditions in both modern and past marine settings. However, contrast to diatoms radiolarians, other siliceous micro- nanoplankton Arctic Ocean have been rarely explored. In this study, silicoflagellates, endoskeletal dinoflagellate Actiniscus pentasterias chrysophyte cysts were investigated one-year mooring sediment trap material...

Inland water bodies (particularly ponds) emit a significant amount of greenhouse gases (GHGs), particularly methane (CH4), carbon dioxide (CO2), and comparatively low nitrous oxide (N2O) to the atmosphere. In recent decades, ponds (<10,000 m2) probably account for about 1/3rd global lake perimeter are considered hotspot GHG emissions. High nutrients waterlogged conditions provide an ideal en...

A woman in her late 50s was found deceased and floating in an ocean bay in a temperate region (N31 3304800, E130 3305500) surrounded by wave dissipation blocks. The woman’s appearance was orderly, except for her sweater, which was turned up to her face. Her jacket, shoes, and bag were found on a nearby block. The police investigation ascertained that she suffered from depression and had previou...

Though the marine world has attracted the attention of the research community for years together, yet the therapeutic potentiality of marine phyto-planktons is largely unexplored. Enzymes play a pathogenic role and are the underlying cause of several diseases like diabetes, Alzheimer, Parkinson etc. Inhibition of such enzymes can serve as a therapeutic strategy against the diseases. Enzymes lik...

The Indian mackerel (Rastrelliger kanagurta, Cuvier, 1817) is one of the commercial small pelagic fish in the Persian Gulf and Oman Sea. In the current research, feed preference index (FP), fullness index (FI), and stomach contents of Rastrelliger kanagurta were evaluated to assess the quantity and type of feed habits. A total of 573 specimens were collected randomly from Bandar - Abbas and Qes...

The surfaces of bacterial cells are perhaps the most important structure in bacteria because they are in immediate contact with the external environment. When bacteria are examined in natural environments they exist as suspended growth forms known as “Planktons”. Planktonic forms often are highly motile, have unnatural access to nutrients and multiply rapidly. Also they are more susceptible to ...