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  • Deep sea imagery

    Biology, Weird and Funny

    A short post containing not much more than a link to some amazing deep sea imagery. The second one reminds me of a Pokemon figure with a finger in it's mouth.

  • By Pepijn on 23 03 07 - 23:25 | two comments |

  • Forum on overfishing (dot org)

    Fisheries, Sitenews now has a forum to discuss overfishing as well as other ocean related topics. It's still brand new but should be fully usable to play around with. Do let me know if you find a bug or encounter an error. (board index)

  • By Pepijn on 15 03 07 - 01:02 | No comments |

  • The Shark Fishing Industry is an Ecological Disaster


    • This is a guest blog from scuba diver and shark enthusiast Patrick. He regularly blogs about shark and whale conservation as well as on other environmental topics @ the Shark Bait Blog.

    The instantly recognisable theme tune of the movie 'Jaws', masks the fact that Sharks of all species have a great deal more to fear from Homo sapiens than the other way round.
    More people are killed by lightning strikes, falling coconuts and the domestic dog each year than are attacked (let alone killed) by sharks.

    In contrast the gigantic number of sharks killed by the international shark fishing industry (much of it destined for the Shark Fin soup market) are so mind bogglingly vast that the figure is in danger of losing its impact through its sheer size. The IUCN's Species Survival Commission, Shark Specialist Group estimates that tens of millions of sharks die worldwide each year as a result of directly targeted fisheries or exploitation of by-catch, in particular the long lining Tuna fisheries. (read the full article)

  • By Patrick on 05 03 07 - 14:03 | two comments |

  • A new solution against sea level rise


    As we all know the continents are exactly like giant surfboards on a sea of hot molten lava (#1). Going out from the coast, passing continental shelves, continental slopes and continental rise we arrive at the ocean floor with its abyssal plains, sea mounts and deep-sea trenches. The deep ocean basin covers over 30% of the surface of our Earth. This is also the place where the crust of the Earth is the thinnest at an average of only six to seven kilometres.

    In the middle of the Atlantic scientists have discovered an area where no crust is present at all. Here, at 3000 meters below the surface, lays the mantle, the Earth's inner-self, open and directly exposed to the oceanic waters. Now this is seen in many other places as well. The interesting part here is that the Earth's crust is appearing to be missing in an area expanding thousands of kilometres. In all the other places the lava erupting from the crust is repairing the hole and appears to limit it from becoming this large.

    It's not only me, the British National Oceanic Centre also considers this to be interesting. They've now set up a research mission and during March and April will use the new research vessel RSS James Cook to do measurements (rock samples as well as the creation of a precise sea floor map by using sonar) on the Mid-Atlantic Ridge. The scientists aim to answer why the crust does not seem to be repairing itself here. Eventually this might lead to a better understanding of plate tectonics.

    Regarding the title of this post; wouldn't it be awesome if we could drain some of the oceans water into this hole in order to combat sea level rise? Now that's something to think about... Jules Verne would've loved it!

    #1) I might be oversimplifying matters a bit here...

    Part of the Mid-Atlantic Ridge with the Caribbean on the left and west-Africa on the right. Image based on ESA ocean bathymetry, recomposed by me in ArcView

  • By Pepijn on 02 03 07 - 14:27 | one comment | - About overfishing.