Dr. Ryota Nakajimahttps://ryotanakajima.comWelcome to Ryota's website!Sat, 08 Sep 2018 23:18:54 +0000en-UShourly1https://ryotanakajima.com/wp-content/uploads/2017/06/cropped-Screen-Shot-2017-06-27-at-11.22.58-32x32.pngDr. Ryota Nakajimahttps://ryotanakajima.com3232Trophic structure of coral reef zooplanktonhttps://ryotanakajima.com/coral-reefs/reef-zooplanktonWed, 19 Jul 2017 05:19:23 +0000http://ryotanakajima.com/?p=764Coral reefs are a hot spot in marine ecological study. Although these ecosystems account for only 0.1% of the world ocean area, their fish production supports ca. 10% of the world’s fish stock. However, currently over 80% of coral reefs are facing serious decline in coral cover and fish resources. This suggests that elucidating ecosystem ... ]]>Deep-sea conservationhttps://ryotanakajima.com/the-deep-sea/deep-sea-conservationSat, 15 Jul 2017 18:26:05 +0000http://ryotanakajima.com/?p=751Continuous decline of marine biodiversity is one of the critical issues in our oceans. That’s why conservation of marine biodiversity is crucial for the sustainable use of marine resources and healthy human life. The 10% marine protected area (MPA) target In order to halt the current rate of marine biodiversity loss at the global, regional and national scale, the ... ]]>The role of coral mucus 101https://ryotanakajima.com/coral-reefs/the-role-of-coral-mucus-101https://ryotanakajima.com/coral-reefs/the-role-of-coral-mucus-101#commentsSat, 15 Jul 2017 06:55:51 +0000http://ryotanakajima.com/?p=693Why do corals release mucus? Corals are known to release mucus from their body into the water. But why do they release mucus? Look at the above picture. When I expose corals to air, they release slimy mucus. In a natural environment, corals can be exposed to air during extremely low tides, experiencing high temperature and dryness ... ]]>https://ryotanakajima.com/coral-reefs/the-role-of-coral-mucus-101/feed1The Amazon River: High fish abundance in the confluence of two large rivershttps://ryotanakajima.com/others/amazon_zooplanktonSun, 04 Jun 2017 07:00:27 +0000http://ryotanakajima.com/?p=546In the center of the Amazon River basin, white water of the Amazon River meets with black water of the Negro River, creating a conspicuous visible boundary spanning over 10 km along the Amazon River, which can even be seen from space. Local fishermen acknowledge the confluence of black and white water rivers is rich ... ]]>Zooplankton community changes over monsoons in a Malaysian coral reefhttps://ryotanakajima.com/coral-reefs/zooplankton-community-changes-over-different-monsoonal-periods-in-tropical-waters-of-se-asiaFri, 31 Mar 2017 08:11:45 +0000http://ryotanakajima.com/?p=298Ryota and his colleagues investigated zooplankton community in a coral reef of Malaysia . The research team collected copepods with a plankton net over different monsoonal periods. They found that more than 70% of the community was dominated by small copepods throughout the year, and the species composition varied with seasonal monsoons. The research team considers that differences ... ]]>
Coral reefs are a hot spot in marine ecological study. Although these ecosystems account for only 0.1% of the world ocean area, their fish production supports ca. 10% of the world’s fish stock. However, currently over 80% of coral reefs are facing serious decline in coral cover and fish resources. This suggests that elucidating ecosystem ... ]]>
Continuous decline of marine biodiversity is one of the critical issues in our oceans. That’s why conservation of marine biodiversity is crucial for the sustainable use of marine resources and healthy human life. The 10% marine protected area (MPA) target In order to halt the current rate of marine biodiversity loss at the global, regional and national scale, the ... ]]>
Why do corals release mucus? Corals are known to release mucus from their body into the water. But why do they release mucus? Look at the above picture. When I expose corals to air, they release slimy mucus. In a natural environment, corals can be exposed to air during extremely low tides, experiencing high temperature and dryness ... ]]>
In the center of the Amazon River basin, white water of the Amazon River meets with black water of the Negro River, creating a conspicuous visible boundary spanning over 10 km along the Amazon River, which can even be seen from space. Local fishermen acknowledge the confluence of black and white water rivers is rich ... ]]>
Ryota and his colleagues investigated zooplankton community in a coral reef of Malaysia . The research team collected copepods with a plankton net over different monsoonal periods. They found that more than 70% of the community was dominated by small copepods throughout the year, and the species composition varied with seasonal monsoons. The research team considers that differences ... ]]>