Deep ocean creatures, adaptations & sounds; 5 August 2008 • Article for prep http://www.nytimes.com/2008/04/08/science/08fish.html?ex=1208318400&en=c81b1195b68e2f90&ei=5070&emc=eta1
SOUNDS IN THE OCEAN Article: http://www.nytimes.com/2008/04/08/science/08fish.html?ex=1208318400&en=c81b1195b68e2f90&ei=5070&emc=eta1 Sounds: http://www.nytimes.com/interactive/2008/04/07/science/20080408_FISH_FEATURE.html#
http://www.listenforwhales.org/NetCommunity/Page.aspx?pid=467&srcid=430http://www.listenforwhales.org/NetCommunity/Page.aspx?pid=467&srcid=430 • A new buoy system off the Massachusetts coast helps scientists track right whales and warn ships of their presence. http://link.brightcove.com/services/link/bcpid1185143625/bctid1488623605
Your deep ocean creaturesfrom the HW#2: • Anglerfish • Rattail (Grenadier fish) • Dumbo octopus • Tubewarm • Kraken (the giant squid) • Kiwa – Yeti crab • Sea pig • Vampire squid • Blob fish • Deep sea coral • Gulper eel • Depressed Yeti crab • Amphipod • Viper fish
Deep ocean adaptations • The clam Calyptogena magnifica, which lives on deep-sea vents, depends on a bacterium to supply it with nutrients; the bacterium is transmitted through the clam’s eggs. The same goes for our mitochondria — the remnants of bacteria that live in our cells and provide us with energy. http://judson.blogs.nytimes.com/2008/04/08/a-mutual-affair/index.html http://www.nytimes.com/2007/05/22/science/22deep.html?_r=1&ref=science&oref=slogin
The speed of sound in water increases with increasing water temperature, increasing salinity and increasing pressure (depth). The approximate change in the speed of sound with a change in each property is: • Temperature 1°C = 4.0 m/sSalinity 1PSU = 1.4 m/sDepth (pressure) 1km = 17 m/s • Ocean ~1500 m/s (air ~ 344m/s)
Bloop • http://oceanexplorer.noaa.gov/explorations/sound01/background/seasounds/media/bloop.html Hydrophones: • http://www.pmel.noaa.gov/vents/acoustics/haru_system.html
Sensing oceans from space • http://www.marine.csiro.au/LeafletsFolder/48sensing/48.html • TOPEX/POSEIDON, identified three El Nino events in 1992-93 and 1994-95, and in 1997-98 during sea level observations of the Pacific Ocean.