MARINE RESOURCES by Génesis Lizondro https://padlet.com/lizondrog28/10ldut3cxpp2akoi Technical English en-us 2022-10-21 23:54:52 UTC 2022-10-25 03:16:30 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/1321522755/7ff324c06f4aa2b6d3d6b28ab6a074de/1807926_d2975.gif BIOTIC lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354695358

]]> 2022-10-25 02:47:51 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354695358 ABIOTIC lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354695619

]]> 2022-10-25 02:48:05 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354695619 MINERAL AND ENERGY (ABIOTIC) lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354700832 The oceans hold a veritable treasure trove of valuable resources. Sand and gravel, oil and gas have been extracted from the sea for many years. In addition, minerals transported by erosion from the continents to the coastal areas are mined from the shallow shelf and beach areas. 
Natural gas and oil have been extracted from the seas for decades, but the ores and mineral deposits on the sea floor have attracted little interest. Yet as resource prices rise, so too does the appeal of ocean mining. The excavation of massive sulphides and manganese nodules is expected to begin within the next few years. ]]> 2022-10-25 02:51:48 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354700832 ZOOPLANKTON AND PHYTOPLANKTON (PLANKTON) lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354701619 Zooplankton are the animal component of the planktonic, they´re heterotrophic (other-feeding), this means zooplankton cannot manufacture their own food but must eat other plants or animals instead (in particular they eat phytoplankton). Zooplankton are generally larger than phytoplankton, most are microscopic, but some (such as jellyfish) are macroscopic and can be seen with the naked eye.
Phytoplankton are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems, they obtain their energy through photosynthesis, as do trees and other plants on land. This means phytoplankton must have light from the sun, so they live in the well-lit surface layers (euphotic zone) of oceans and lakes. In comparison with terrestrial plants, phytoplankton are distributed over a larger surface area, are exposed to less seasonal variation and have markedly faster turnover rates than trees (days versus decades). As a result, phytoplankton respond rapidly on a global scale to climate variations.]]> 2022-10-25 02:52:28 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354701619 FISH AND MAMMALS (NEKTON) lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354702247 Fish are aquatic vertebrate animals that have gills but lack limbs with digits, like fingers or toes. Recall that vertebrates are animals with internal backbones. Most fish are streamlined in their general body form. 
Fish have developed special senses, too. Because water transmits sounds, disperses chemicals, and conducts electricity better than air, fish rely less on their vision and more on their hearing, taste, and smell. Many can detect motion in the water using a special row of scales with sensors known as the lateral line. Others can find their prey and even navigate by detecting electrical charges.
One reason fish are so diverse is that 70 percent of the planet is covered in water. The animals in this group live in a variety of habitats ranging from coral reefs and kelp forests to rivers, streams, and the open ocean.

Marine Mammals are found in marine ecosystems around the globe. They are a diverse group of mammals with unique physical adaptations that allow them to thrive in the marine environment with extreme temperatures, depths, pressure, and darkness. Marine mammals are classified into four different taxonomic groups: cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), and marine fissipeds (polar bears and sea otters), they breathe air through lungs, are warm-blooded, have hair (at some point during life), and produce milk to nurse their young.
]]> 2022-10-25 02:53:00 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354702247 BENTHOS lizondrog28 https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354702908 2022-10-25 02:53:28 UTC https://padlet.com/lizondrog28/10ldut3cxpp2akoi/wish/2354702908