High biodiversity means that many different species live within one ecosystem. As opposed to a flat seafloor, seamounts rise off the ocean bottom and interact with water flowing around them. A marine protected area is. The Top 10 Ocean Biodiversity Hotspots to Protect. Plants and animals have as much difficulty surviving in the thin atmosphere on freezing mountain tops as they do living in hot, waterless deserts. Written By Dr. Steven Katona, Managing Director, Ocean Health Index Dr. Bruce Robison may have the best job in the world! Each species of organism has its own niche within the ecosystem; if niches overlap, one species will die out as a result of interspecific competition. Introduction. ... also have high biodiversity. Coral reefs are the nurseries of the oceans, they are biodiversity hot spots. continental shelf. May 21, 2020 - by Tara Lohan On some tropical coral reefs, for example, there can be 1,000 species per m². Thus, the aquatic or marine biome would have the greatest diversity in a large part due to the size of this biome. On the other extreme, moist, tropical zones like the Amazon rainforest support some of the highest levels of biodiversity in the world. Most data were from the Ocean Biogeographic Information System (OBIS) , augmented using the Global Biodiversity Information Facility (GBIF) and FishBase when needed. Most of the productivity of the ocean occurs in (on) the _____. In freshwater, these are mainly plants, phytoplankton and zooplankton. Almost 300 bird species have been observed at the Dixon Waterfowl Refuge in north-central Illinois, while the restored wetland–prairie landscape at Midewin National Tallgrass Prairie near Joliet supports some species found almost nowhere else, including federally endangered leafy prairie-clover. Alternatively, the volume of fresh water is … Also, like the open ocean, a lake's biodiversity starts with primary producers. What portion of the ocean contains the highest biodiversity and the greatest productivity? We were able to categorize 12 434 marine species (more than 99% of all marine percomorphs) as present or absent in each region. Oceans & Clean Water. A new study took a deep dive into critical aspects of ocean life to identify the areas of the high seas most worthy of conservation effort. Two of TWI’s restoration sites are particularly well known for their high level of biodiversity. "The World Ocean (Oceanosphere) contains on the order of 1,340.7 million km3 of water, making up 1/800th of the total volume of the Earth (1,083.3 billion km3). Narrow niches tend to reduce the extent of overlap and therefore reduce interspecific competition. Biodiversity of the oceans. ... Oceans have a high heat capacity and change temperature slowly. Our oceans comprise almost three quarters of the surface of the earth. Plastic accumulating in our oceans and on our beaches has become a global crisis. 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