Sökning: onr:"swepub:oai:gup.ub.gu.se/182784" >
Rapid Glass Sponge ...
Rapid Glass Sponge Expansion after Climate-Induced Antarctic Ice Shelf Collapse
-
Fillinger, L. (författare)
-
Janussen, D. (författare)
-
- Lundälv, Tomas, 1944 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory
-
visa fler...
-
Richter, C. (författare)
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- Engelska.
-
Ingår i: Current Biology. - : Elsevier BV. - 0960-9822. ; 23:14, s. 1330-1334
- Relaterad länk:
-
http://www.cell.com/...
-
visa fler...
-
https://gup.ub.gu.se...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Over 30% of the Antarctic continental shelf is permanently covered by floating ice shelves [1], providing aphotic conditions [2, 3] for a depauperate fauna sustained by laterally advected food [4, 5]. In much of the remaining Antarctic shallows (<300 m depth), seasonal sea-ice melting allows a patchy primary production supporting rich megabenthic communities [6, 7] dominated by glass sponges (Porifera, Hexactinellida) [8-10]. The catastrophic collapse of ice shelves due to rapid regional warming along the Antarctic Peninsula in recent decades [11] has exposed over 23,000 km(2) of seafloor to local primary production [12]. The response of the benthos to this unprecedented flux of food [13] is, however, still unknown. In 2007, 12 years after disintegration of the Larsen A ice shelf, a first biological survey interpreted the presence of hexactinellids as remnants of a former under-ice fauna with deep-sea characteristics [14]. Four years later, we revisited the original transect, finding 2- and 3-fold increases in glass sponge biomass and abundance, respectively, after only two favorable growth periods. Our findings, along with other long-term studies [15], suggest that Antarctic hexactinellids, locked in arrested growth for decades [8, 16], may undergo boom-and-bust cycles, allowing them to quickly colonize new habitats. The cues triggering growth and reproduction in Antarctic glass sponges remain enigmatic.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- weddell sea
- peninsula
- communities
- biology
- impact
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas