Results 61 to 70 of about 4,495 (224)

Tissue composition of sponges from the Weddell Sea, Antarctica: not much meat on the bones [PDF]

open access: yes, 1995
The tissue of 31 demosponge and 7 hexachnelhd species was analyzed for its composition of organic and lnorganic matter With one excephon (Hahclona cf gausaana) inorganic matter i e n~ostly the siliceous skeleton, accounted for most of the dry weight ...
Barthel, Dagmar
core   +1 more source

Molecular and morphological congruence of three new cryptic Neopetrosia spp. in the Caribbean [PDF]

open access: yesPeerJ, 2019
Neopetrosia proxima (Porifera: Demospongiae: Haplosclerida) is described as a morphologically variable sponge common on shallow reefs of the Caribbean. However, the range of morphological and reproductive variation within putative N.
Jan Vicente   +3 more
doaj   +2 more sources

Establishment of Transgenesis in the Demosponge Suberites domuncula [PDF]

open access: yesGenetics, 2018
Abstract Sponges (Porifera) represent one of the most basally branching animal clades with key relevance for evolutionary studies, stem cell biology, and development. Despite a long history of sponges as experimental model systems, however, functional molecular studies are still very difficult to perform in these animals. Here, we report
Revilla-i-Domingo, Roger   +3 more
openaire   +2 more sources

Shallow waters Demosponges of the Galápagos Islands

open access: yesRevue suisse de zoologie, 1997
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ruth Desqueyroux-Faúndez   +1 more
openaire   +2 more sources

Sponge grade body fossil with cellular resolution dating 60 Myr before the Cambrian [PDF]

open access: yes, 2015
An extraordinarily well preserved, 600-million-year (Myr)-old, three-dimensionally phosphatized fossil displaying multiple independent characters of modern adult sponges has been analyzed by SEM and synchrotron X-ray tomography.
Bottjer, David J.   +5 more
core   +2 more sources

Coralline demosponges

open access: yes, 2001
research
Reitner, Joachim   +3 more
openaire   +2 more sources

Seventeen new complete mtDNA sequences reveal extensive mitochondrial genome evolution within the Demospongiae. [PDF]

open access: yesPLoS ONE, 2008
Two major transitions in animal evolution--the origins of multicellularity and bilaterality--correlate with major changes in mitochondrial DNA (mtDNA) organization.
Xiujuan Wang, Dennis V Lavrov
doaj   +1 more source

Distribution patterns and demographic trends of demosponges at the Menorca Channel (Northwestern Mediterranean Sea)

open access: yesProgress in Oceanography, 2019
Nowadays, there is still a huge lack of knowledge regarding the morphology and size structure of sponge populations and their possible ecological implications.
Andreu Santín   +5 more
semanticscholar   +1 more source

Associations of Commercial Fisheries and Cold‐Water Corals and Sponges

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 116-129, March 2026.
Three metrics for determining whether the marine life that are landed by commercial fisheries are associated with cold‐water corals and sponges: (a) Adjacent; (b) General Proximity; and (c) Habitat. The relationship between these structure forming invertebrates (SFI) and fisheries is robust across analytical approaches.
Jennifer Coyle Selgrath   +2 more
wiley   +1 more source

Seasonal Growth Rate of the Sponge Haliclona oculata (Demospongiae: Haplosclerida) [PDF]

open access: yes, 2008
The interest in sponges has increased rapidly since the discovery of potential new pharmaceutical compounds produced by many sponges. A good method to produce these compounds by using aquaculture of sponges is not yet available, because there is ...
Marieke Koopmans   +29 more
core   +2 more sources

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