Results 61 to 70 of about 4,700 (201)

Marine Bifunctional Sphingolipids from the Sponge Oceanapia ramsayi

open access: yesMolecules, 2008
During the course of our continuing studies on marine natural lipid products,two known sphingolipids have been isolated for the first time from a specimen of themarine sponge Oceanapia ramsayi collected at Itampolo on the west coast of Madagascarin the ...
Emile M. Gaydou   +5 more
doaj   +1 more source

Estuarine benthic diversity declines with temperature across a tropical–temperate gradient

open access: yesEcography, Volume 2026, Issue 10, October 2026.
Estuarine benthic sediments are important habitats that support ecosystem health and productivity, but the drivers of large‐scale patterns in benthic diversity are not well documented. Using 18S amplicon sequencing of 425 sediment DNA samples from estuaries spanning 20° of latitude along Australia's east coast, we assessed tropical–temperate patterns ...
Sally A. Bracewell   +5 more
wiley   +1 more source

New species from the deep Pacific suggest that carnivorous sponges date back to the Early Jurassic [PDF]

open access: yes, 2008
Some deep-sea poecilosclerid sponges (Porifera) have developed a carnivorous feeding habit that is very surprising in sponges^1^. As shown by the typical morphology of their spicules, they most probably evolved from "normal sponges" under the ...
Jean Vacelet, Michelle Kelly
core  

МИТОХОНДРИЈАЛНИ ГЕНОМИ КЛАСЕ DEMOSPONGIAE SOLLAS 1885

open access: yes, 2016
Митохондрије су органеле специјализоване за производњу енергије у еукариотскимћелијама, а воде поријекло од ендосимбиотских -протеобактерија. Постоје значајне разлике уархитектури митохондријалних генома и саставу гена међу различитим групама Metazoa ...
Елез-Бурњаковић, Николин   +2 more
core   +1 more source

Diversity and Species Composition of Sponges (Porifera: Demospongiae) in Reef Flat of Barranglompo Island [PDF]

open access: yes, 2020
Sponge is one of the biota that makes up coastal and marine ecosystems, especially in coral reef ecosystems and seagrass beds in both tropical and subtropical waters.
Nurafni, Nurafni   +3 more
core   +1 more source

Four replacement names in fossil demosponges (Porifera: Demospongiae)

open access: yesRevista Brasileira de Paleontologia, 2022
The following replacement names in fossil Demospongiae are proposed: Trinacriarbuscula Ceccolini & Cianferoni nom. nov. = Arbuscula Parona, 1933 nec Bolivar, 1905; Iberogilletia Ceccolini & Cianferoni nom. nov. = Gilletia Lagneau-Herenger, 1962 nec Benderitter, 1923; Teutomastophorus Ceccolini & Cianferoni nom. nov.
Filippo Ceccolini, Fabio Cianferoni
openaire   +3 more sources

Morphology of the First Zoeal Stage of the Shrimp Typton distinctus Chace, 1972: The Second for the Genus Typton O.G. Costa, 1844 After 100 Years

open access: yesActa Zoologica, Volume 107, Issue 4, Page 501-510, October 2026.
ABSTRACT The marine shrimp of the genus Typton are widely distributed, known to be associated with sessile organisms such as sponges. Information about this genus is limited, highlighting the scarcity of important features in its biology, including larval forms.
Matheus Sene   +2 more
wiley   +1 more source

Localization and Characterization of Ferritin in Demospongiae: A Possible Role on Spiculogenesis [PDF]

open access: yesMarine Drugs, 2014
Iron, as inorganic ion or as oxide, is widely used by biological systems in a myriad of biological functions (e.g., enzymatic, gene activation and/or regulation). In particular, marine organisms containing silica structures—diatoms and sponges—grow preferentially in the presence of iron. Using primary sponge cell culture from S. domuncula–primmorphs—
Natalio, Filipe   +4 more
openaire   +3 more sources

Marine Demospongiae of Ras Iwatine(Kenya) [PDF]

open access: yes, 1976
A systematic account of 10 species of marine demospongiae belonging to 9 genera under 9 families, collected as hosts of shrimps and prawns from Ras Iwatine, Kenya is presented in this ...
Thomas, P A
core   +1 more source

Clionaidae From Northeastern Brazil: A New Species of Clionaopsis (Rützler 2002), Redescription of Spheciospongia symbiotica (Hechtel 1983), and New Records of Cervicornia cuspidifera (Lamarck 1815)

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 3, September 2026.
The family Clionaidae d’Orbigny, 1851, includes excavating sponges characterized by tylostyles and a diverse range of microscleres, including spirasters, amphiasters, microxeas, spiral microstrongyles, and derivatives lacking altogether. Despite recent taxonomic advances, generic boundaries within the family remain problematic due to overlapping ...
Elielton F. Nascimento   +2 more
wiley   +1 more source

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