Results 41 to 50 of about 4,700 (201)

CO I Barcoding Reveals New Clades and Radiation Patterns of Indo-Pacific Sponges of the Family Irciniidae (Demospongiae: Dictyoceratida) [PDF]

, 2010
DNA barcoding is a promising tool to facilitate a rapid and unambiguous identification of sponge species. Demosponges of the order Dictyoceratida are particularly challenging to identify, but are of ecological as well as biochemical importance.Here we ...
Pöppe, Judith, Judith Pöppe, Sutcliffe Patricia, Erpenbeck Dirk, Patricia Sutcliffe, Hooper, John N. A., Sutcliffe, Patricia, Poeppe, Judith, Wörheide, Gert, Erpenbeck, Dirk, Gert Wörheide, Wörheide Gert, John N A Hooper, Dirk Erpenbeck, Pöppe Judith, Hooper John N. A., Woerheide, Gert   +16 more
core   +2 more sources

Indigenous demosponge spicules in a Late Devonian stromatoporoid basal skeleton from the Frasnian of Belgium [PDF]

, 2014
peer ...
Kershaw, S, Reitner, J., Reynolds, A., Hubert, M, Reynolds, Alan, Mistiaen, Bruno, Boulvain, F., Benoit L. M. Hubert, Boulvain, F, Stephen Kershaw, Hubert, B.L.M., Reynolds, A, Alan Reynolds, Da Silva, A-C, Mistiaen, B, Boulvain, Frédéric, Bruno Mistiaen, Hubert, Benoit L. M., Frédéric Boulvain, Kershaw, Stephen, Anne-Christine Da Silva, Da Silva, A.-C., Reitner, J, Joachim Reitner, Da Silva, Anne-Christine, Hubert, BLM, Reitner, Joachim   +26 more
core   +1 more source

Some Like It Fat: Comparative Ultrastructure of the Embryo in Two Demosponges of the Genus Mycale (Order Poecilosclerida) from Antarctica and the Caribbean [PDF]

, 2015
0000-0002-7993-1523© 2015 Riesgo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License [4.0], which permits unrestricted use, distribution, and reproduction in any medium, provided the original ...
Solà, J, Solà Peracaula, Joan, Ávila Escartín, Conxita, Sergio Taboada, Riesgo Ana, Andrea Bertran, Bertran, A, Bertrán, Andrea., Taboada Sergio, Avila, C, Ana Riesgo, Sánchez-Vila Laura, Bertran Andrea, Sánchez-Vila, L, Solà Joan, Conxita Avila, Taboada Moreno, Sergi, Riesgo, A, Riesgo Gil, Ana, Joan Solà, Taboada, S, Laura Sánchez-Vila, Avila Conxita, Sánchez Vila, Laura   +23 more
core   +1 more source

Divergence times in demosponges (Porifera): first insights from new mitogenomes and the inclusion of fossils in a birth-death clock model

BMC Evolutionary Biology, 2018
Background Approximately 80% of all described extant sponge species belong to the class Demospongiae. Yet, despite their diversity and importance, accurate divergence times are still unknown for most demosponge clades.
Astrid Schuster, Sergio Vargas, Ingrid S. Knapp, Shirley A. Pomponi, Robert J. Toonen, Dirk Erpenbeck, Gert Wörheide   +6 more
doaj   +1 more source

Embryo development of Corticium candelabrum (Demospongiae: Homosclerophorida) [PDF]

Invertebrate Biology, 2007
Abstract. Corticium candelabrum is a homosclerophorid sponge widespread along the rocky Mediterranean sublittoral. Scanning and transmission electron microscopy were used to describe the gametes and larval development. The species is hermaphroditic. Oocytes and spermatocytes are clearly differentiated in April.
de Caralt Bosch, S., Uriz, M.J., Ereskovsky, A.V., Wijffels, R.H.   +3 more
openaire   +3 more sources

A Metataxonomic Approach Reveals Diversified Bacterial Communities in Antarctic Sponges

Marine Drugs, 2021
Marine sponges commonly host a repertoire of bacterial-associated organisms, which significantly contribute to their health and survival by producing several anti-predatory molecules. Many of these compounds are produced by sponge-associated bacteria and
Nadia Ruocco, Roberta Esposito, Marco Bertolino, Gianluca Zazo, Michele Sonnessa, Federico Andreani, Daniela Coppola, Daniela Giordano, Genoveffa Nuzzo, Chiara Lauritano, Angelo Fontana, Adrianna Ianora, Cinzia Verde, Maria Costantini   +13 more
doaj   +1 more source

The mitochondrial genomes of sponges provide evidence for multiple invasions by Repetitive Hairpin-forming Elements (RHE) [PDF]

, 2009
Background: The mitochondrial (mt) genomes of sponges possess a variety of features, which appear to be intermediate between those of Eumetazoa and non-metazoan opisthokonts.
Lavrov Dennis V, Wörheide, Gert, Erpenbeck, Dirk, Wörheide Gert, Oliver Voigt, Gert Wörheide, Dennis V Lavrov, Lavrov, Dennis V., Erpenbeck Dirk, Dirk Erpenbeck, Voigt Oliver, Voigt, Oliver   +11 more
core   +1 more source

Carbon conversion and metabolic rate in two marine sponges [PDF]

, 2010
The carbon metabolism of two marine sponges, Haliclona oculata and Dysidea avara, has been studied using a 13C isotope pulse-chase approach. The sponges were fed 13C-labeled diatoms (Skeletonema costatum) for 8 h and they took up between 75 and 85%.
Martens, D., Middelburg, J.J., M. Koopmans, Van Rijswijk, P., T. A. Egorova-Zachernyuk, Martens, D.E., D. Martens, R. H. Wijffels, Koopmans, M., Rijswijk, P. van, Rijswijk, P., van, J. J. Middelburg, Egorova-Zachernyuk, T.A., Wijffels, R.H., P. van Rijswijk   +14 more
core   +4 more sources

Sponges from rhodolith beds surrounding Ustica Island marine protected area (southern Tyrrhenian Sea), with a comprehensive inventory of the island sponge fauna

Scientia Marina, 2020
The sponge fauna colonizing rhodolith beds from Ustica Island marine protected area was studied. Moreover, an inventory of the sponge species present along the island’s coasts was carried out for the first time.
Caterina Longo, Giuseppe Corriero, Frine Cardone, Maria Mercurio, Cataldo Pierri, Carlotta Nonnis Marzano   +5 more
doaj   +1 more source

Growth Efficiency and Carbon Balance for the Sponge Haliclona oculata [PDF]

, 2009
To obtain more knowledge about carbon requirements for growth by sponges, the growth rate, respiration rate, and clearance rate was measured in situ in Haliclona oculata. We found that only 34% of the particulate carbon pumped through the sponge was used
Marieke Koopmans, Dirk Martens, Martens, D.E., Rene H. Wijffels, Koopmans, M., Wijffels, R.H.   +5 more
core   +1 more source