How is it that seabirds have no problem drinking seawater? The salt they take in is absorbed and moves through their blood stream into a pair of salt glands above their eyes. The densely salty fluid that results is excreted from the nostrils and runs down grooves in the bill.Read More →
The 2018 edition of the United Nations World Water Development Report stated that nearly 6 billion peoples will suffer from clean water scarcity by 2050. This is the result of increasing demand for water, reduction of water resources, and increasing pollution of water, driven by dramatic population and economic growth.Read More →
There are three basic types of freshwater ecosystems: Lentic (slow moving water, including pools, ponds, and lakes), lotic (faster moving water, for example streams and rivers) and wetlands (areas where the soil is saturated or inundated for at least part of the time). What can you find in a freshwaterRead More →
Hydra capture their food by paralyzing and killing the food organism by means of nematocysts, which are discharged into the prey. The prey is brought to the mouth (proctostome) by the tentacles, a response that is induced glutathione. … The organism is then taken in through the mouth, which isRead More →
Habitat and Range: Manatees can be found in shallow, slow-moving rivers, estuaries, saltwater bays, canals, and coastal areas — particularly where seagrass beds or freshwater vegetation flourish. Manatees are a migratory species. Within the United States, they are concentrated in Florida in the winter. Why do manatees live in freshwater?Read More →
But saline lakes are an environment unto themselves. … Many of the largest ones (by area) are salty: Utah’s Great Salt Lake, the Caspian Sea (arguably the world’s biggest lake), Iran’s Lake Urmia, and the Dead Sea. Unlike marine and brackish waters, saline lakes typically form inland, and do notRead More →
A bloom happens when there are large concentrations of cells, which can discolor water – making it reddish or brown. The species that causes most red tides in Florida and the Gulf of Mexico is Karenia brevis, or K. brevis. What type of aquatic ecosystem is Tampa Bay? Tampa BayRead More →
The Chinese algae eater does well in a community of fish, both in ponds and aquariums. They are herbivores by nature and live along with both koi and goldfish in ponds. The Chinese algae eater is not a territorial fish. Do koi eat plecostomus? Any fish, that because of someRead More →
Diet. Freshwater Flounder are carnivores that consume small crustaceans and insect larvae in the wild. In captivity, they will eat flakes and pellets but will be much happier if you feed them small fish or worms. The best foods for Freshwater Flounder are live or frozen meaty foods that sinkRead More →
Euglena live in fresh and brackish water habitats rich in organic matter. Some species develop tremendous populations as green or red “blooms” in ponds or lakes. Is euglena good or bad? Euglena adapt to their environments easily. They can survive in both fresh and salt water. Euglena lies inactive andRead More →