Das weltgrößte Korallenriff könnte schon
bald Vergangenheit sein. Die zunehmende Massenbleiche am Great Barrier
Reef schockiert nicht nur Wissenschaftler. Nun schlägt auch die Kirche
in Australien Alarm.
Zum ganzen Artikel auf domradio.de
Donnerstag, 16. November 2017
Mittwoch, 12. April 2017
KlimafolgenNeue Schäden am Great Barrier Reef
Das Great Barrier Reef vor der Nordostküste Australiens hat in den vergangenen 19 Jahren vier sogenannte Korallenbleichen erlebt, ausgelöst durch steigende Temperaturen. Und das Korallensterben setzt sich fort. Meeresbiologen warnen, dass der größte lebende Organismus der Welt im Sterben liege.
Dienstag, 19. Juli 2016
Sonntag, 10. Juli 2016
Tauchfahrt vor Roatan, Honduras
Sehr interessantes Video von einer Tauchfahrt vor Roatan, Honduras:
… video submarine vertical transect that goes from 610 m (2000 ft) to the surface off NW Roatan Island, Honduras, Caribbean Sea.
https://youtu.be/4F3XQeWs4V8
Some will find this footage interesting because:
(1) Benthic cover is very low below the middle of the mesophotic zone, and below the mesophotic zone, there is mostly clean substratum and deep sea fauna (glass sponges, crinoids, etc).
(2) Sponge cover increases with seaweed cover, congruent with the "vicious circle" hypothesis that DOC from seaweeds may be linked to Caribbean sponge nutrition - for more on that, see: http://people.uncw.edu/pawlikj/2016BioSciencePawlik.pdf (
3) A lionfish is the first "shallow-water" fish species seen as the sub climbs, at about 500 ft (150 m) - clearly, this species is "here to stay" in the Caribbean.
(4) The sub tracks over the dive gear of a suicidal diver from 30 years ago at 130 m - there is very little fouling the BCD and tank, showing the slow recruitment at this depth.
Author:
Joseph R. Pawlik, Professor, Dept. of Biology and Marine Biology UNCW Center for Marine Science 5600 Marvin K Moss Lane Wilmington, NC 28409 Office:(910)962-2377; Cell:(910)232-3579 Website: http://people.uncw.edu/pawlikj/index.html PDFs: http://people.uncw.edu/pawlikj/pubs2.html Video Channel: https://www.youtube.com/user/skndiver011
… video submarine vertical transect that goes from 610 m (2000 ft) to the surface off NW Roatan Island, Honduras, Caribbean Sea.
https://youtu.be/4F3XQeWs4V8
Some will find this footage interesting because:
(1) Benthic cover is very low below the middle of the mesophotic zone, and below the mesophotic zone, there is mostly clean substratum and deep sea fauna (glass sponges, crinoids, etc).
(2) Sponge cover increases with seaweed cover, congruent with the "vicious circle" hypothesis that DOC from seaweeds may be linked to Caribbean sponge nutrition - for more on that, see: http://people.uncw.edu/pawlikj/2016BioSciencePawlik.pdf (
3) A lionfish is the first "shallow-water" fish species seen as the sub climbs, at about 500 ft (150 m) - clearly, this species is "here to stay" in the Caribbean.
(4) The sub tracks over the dive gear of a suicidal diver from 30 years ago at 130 m - there is very little fouling the BCD and tank, showing the slow recruitment at this depth.
Author:
Joseph R. Pawlik, Professor, Dept. of Biology and Marine Biology UNCW Center for Marine Science 5600 Marvin K Moss Lane Wilmington, NC 28409 Office:(910)962-2377; Cell:(910)232-3579 Website: http://people.uncw.edu/pawlikj/index.html PDFs: http://people.uncw.edu/pawlikj/pubs2.html Video Channel: https://www.youtube.com/user/skndiver011
Mittwoch, 1. Juni 2016
Survey confirms worst-ever coral bleaching at Great Barrier Reef
Coral bleaching in March at Lizard Island on the Great Barrier Reef.
XL Catlin Seaview Survey
Survey confirms worst-ever coral bleaching at Great Barrier Reef
Donnerstag, 5. Mai 2016
Invasion der Feuerfische in der Karibik
Der Feuerfisch ist in der Karibik und weiten Teilen des Westatlantiks zu einer Plage geworden. Auf der honduranischen Insel Roatan versucht man, mit ungewöhnlichen Methoden gegen den Fisch vorzugehen.
- Permalink http://dw.com/p/1IYES
Myanmar: See-Nomaden und Wissenschaftler retten eine Welt
Seit der Öffnung Myanmars 2011 setzen Tourismus und Fischerei dem artenreichen Mergui-Archipel im Süden des Landes zu. Eine Allianz aus lokalen See-Nomaden und internationalen Forschern will das Inselparadies retten.
Deutsche Welle 19.04.2016
Deutsche Welle 19.04.2016
Permalink http://dw.com/p/1IYIx
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