In this activity, students collect and observe macroinvertebrates from a local freshwater stream.
Earth is called the blue planet due to the abundance of water. About 70% of the surface of the Earth is covered by water, and it is the only natural substance that can be found on Earth in all three states – liquid, solid and gas. Due to this unique property, water can be found just about everywhere.
ماهی آراپایما گیگاس (Arapaima gigas) از گونه ماهیان آب شیرین بومی رودخانه آمازون و رودخانه ارینکو در آمریکای جنوبی است که اندازه بزرگی داشته و شکارچی خوبی است.
Array
Dactyloptena orientalis
In this image video you can see: mekong catfish, arapaima, piraiba catfish, kaluga and white sturgeon, nile perch, gar alligator, barbus esocinus, giant freshwater stingray and many more.
Download this free photo of Isolated Rainbow Trout Freshwater from Pixabay's vast library of royalty-free stock images, videos and music.
Stingray by Scott Spain
Kōura (freshwater crayfish, Paranephrops planifrons, P. zealandicus) are one of Aotearoa New Zealand’s original inhabitants. They have an ancient lineage that diverged from their Australian relatives about 60–109 million years ago. Because their entire life cycle requires freshwater, kōura are evidence that there has been continuous freshwater in Zealandia ever since our part of Gondwana broke up 60–80 million years ago. As far as our evolutionary history goes, kōura are as significant as tuatara, wētā and kiwi!
It is going to take all of us working together to rebuild the health of our rivers and streams. In this story, we meet Dr Amanda Valois who is working to build community connections and engagement with freshwater health.
A plea to politicians and the public, urging them to trust that the people who study water quality know what they’re talking about.
By Philip Copitch, Ph.D. He we have an adorable Blue Grass Guppy. Atractive and not lacking is some math skills. Many animals see...
The eyes of a mosquito, the life of a ‘moss piglet’ and the alien-like face of a baby zebra fish are all things impossible to see with the naked eye.
Fonterra cleared the cows from 16 farms and is using the land to dispose of wastewater, which could be leaching a colourless, tasteless and odourless pollutant into private drinking water supplies.
In this activity, students build an aquifer model and examine how water gets into an aquifer system.
New Zealand has over 200 species of freshwater macroinvertebrates. An invertebrate is an animal that lacks a backbone. ‘Macro’ means the invertebrates are large enough to be seen without magnification – even though some can be as small as 1 mm in length. Examples of aquatic macroinvertebrates include crustaceans (such as sand hoppers), insects (such as beetles and mayflies), molluscs (such as snails) and segmented worms (such as leeches).
Parts of the Hauraki Plains have become killing fields for ducks and eels as summer heat exacerbates existing habitat problems.
