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sponges [2019/09/17 00:07]
michael
sponges [2019/10/13 15:15] (current)
floyd
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-The Porifera, sponges, are sessile benthic invertebrates that represent one of the oldest,possibly even the oldest metazoan lineage.  Sponges comprise approximately 8,500 described species divided among 4 extant classes: Calcarea, Homoscleromorpha, Hexactinellida, and demospongiae, with the demospongiae being the most diverse group.  Sponges maintain numerous roles in the marine ecosystem such as nutrient cycling, habitat forming, and symbiosis with several different organisms.  Bacteria comprise nearly 50% of the sponge biomass leading to five types of interactions (mutualism, commensalism…) and are formidable opponents in the battle for benthic space by filter feeding.+<wrap column>{{pink tube sponge.jpg}}</wrap> The Porifera, sponges, are sessile benthic invertebrates that represent one of the oldest, possibly even the oldest metazoan lineage.  Sponges comprise approximately 8,500 described species divided among 4 extant classes: Calcarea, Homoscleromorpha, Hexactinellida, and Demospongiae, with the Demospongiae being the most diverse group.  Sponges maintain numerous roles in the marine ecosystem such as nutrient cycling, habitat forming, and symbiosis with several different organisms.  
 + 
 +  * [[Pawlik and McMurray 2020]] 
 +  * [[Lemloh et al 2009]] 
 +  * [[Bell et al 2018]]
sponges.1568678873.txt.gz · Last modified: 2019/09/17 00:07 by michael