Prey capture and digestion in the carnivorous sponge Asbestopluma hypogea (Porifera: Demospongiae)

  title={Prey capture and digestion in the carnivorous sponge Asbestopluma hypogea
(Porifera: Demospongiae)},
  author={Jean Vacelet and Eric Duport},
AbstractAsbestopluma hypogea (Porifera) is a carnivorous species that belongs to the deep-sea taxon Cladorhizidae but lives in littoral caves and can be raised easily in an aquarium. It passively captures its prey by means of filaments covered with hook-like spicules. Various invertebrate species provided with setae or thin appendages are able to be captured, although minute crustaceans up to 8 mm long are the most suitable prey. Transmission electron microscopy observations have been made… 

Cell death and renewal during prey capture and digestion in the carnivorous sponge Asbestopluma hypogea (Porifera: Poecilosclerida)

The results demonstrate that dynamics of cell renewal in sponge appear to be regulated by cellular mechanisms as multiple and complex as those already identified in bilaterian metazoans.

Predation on copepods by an Alaskan cladorhizid sponge

  • L. Watling
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2007
The hypothesis is that the primary process of prey capture is by means of a sticky substance and that prey stick to the sponge on contact and the sponges seem to have their highest density in areas where bottom flow and migrating copepod numbers are both high.

Mechanisms of propagule release in the carnivorous sponge Asbestopluma occidentalis

Newly discovered shallow-water populations of the carnivorous sponge Asbestopluma occidentalis in the Salish Sea provides a rare opportunity to study the evolution and ecology of carnivory in the Porifera.

A giant foraminifer that converges to the feeding strategy of carnivorous sponges: Spiculosiphon oceana sp. nov. (Foraminifera, Astrorhizida).

Spiculosiphon species collect and arrange sponge spicules with high selectivity to recreate a body morphology that strongly converges to that of some carnivorous sponges, which allows these predatory foraminifera to exploit a prey capturing strategy similar to those of the carnivoroussponges.

Diversity and evolution of deep-sea carnivorous sponges

It is suggested, given the important morphological adaptations of these sponges, their ambiguous relationships with extant families of poecilosclerids and the authors' rapidly increasing knowledge regarding their diversity, that it would be premature to drastically change the classification before having more information, especially of reproduction and molecular characters.

The systematics of carnivorous sponges.

Exploring cultivable Bacteria from the prokaryotic community associated with the carnivorous sponge Asbestopluma hypogea.

The cultivable fraction of the prokaryotic community associated with the carnivorous sponge Asbestopluma hypogea was investigated for the first time and one Streptomyces sp.

Reproduction in a carnivorous sponge: the significance of the absence of an aquiferous system to the sponge body plan

Loss of the water canal system in carnivorous sponges has allowed the evolution of features that are highly specialized for the habitat of this animal, but such modifications were not necessarily a prerequisite for the subsequent evolution of metazoans.

Morphological, ecological and molecular characterization of the enigmatic planispiral snail genus Adeuomphalus (Vetigastropoda: Seguenzioidea)

Examining newly collected and museum-stored specimens from upper to lower bathyal depths in the Atlantic, Mediterranean, Pacific and Indian Oceans and recognizing seven recent species revealed six monophyletic groups in Seguenzioidea: Seguenziidae, Chilodontidae, Calliotropidae, Cataegidae, Spinicalliotropis and skenei- morph seguenzIOids.




Analysis of ambient and exhalant water samples collected in situ indicates that the net POC diet of three tropical Demospongiae, Mycale sp.

Phagocytose et pinocytose chez les Spongillidae

  • I. Schmidt
  • Biology
    Zeitschrift für vergleichende Physiologie
  • 2004
The fact that the authors were unable to demonstrate the existence of an extracellular proteolytic activity for E. fluviatilis, supports the conclusion that digestion by sponges is strictly intracellular.

A new species of carnivorous sponge (Demospongiae: Cladorhizidae) from a Mediterranean cave

A cladorhizid sponge which has been shown to be carnivorous, is described as a new species of Asbestopluma, A. hypogea sp. nov. The sponge lives in a Mediterranean cave, 17 to 22 meters deep, between

Family Cladorhizidae Dendy, 1922

Cladorhizidae Dendy (Demospongiae, Poecilosclerida, Mycalina) are predominantly deep water taxa, encompassing fifteen nominal genera of which only three genera are considered to be valid. Sponges

Systema Porifera. A Guide to the Classification of Sponges

Volume 1: Introductions and Demospongiae. Abbreviations. Acknowledgements. Copyright Credits. Preface. Introduction J.N.A. Hooper, R.W.M. Van Soest. Phylum Porifera Grant, 1836 J.N.A. Hooper, R.W.M.

Carnivorous sponges

It is demonstrated that the Cladorhizidae have evolved carnivory and capture small crustaceans by means of filaments provided with raised hook-shaped spicules, resulting in the loss of the diagnostic characteristics of the phylum Porifera: an aquiferous system and choanocytes.

Intracellular pathways and degradation of endosomal contents in basal epithelial cells of freshwater sponges (Porifera, Spongillidae)

The intracellular pathways and hydrolytic processing of endosomal and phagosomal contents in freshwater sponge cells share certain similarities with the respective mechanisms in cells of higher eukaryotes.

Detection of distinct endocytotic and phagocytotic activities in epithelial cells (pinacocytes) of freshwater sponges (Porifera, Spongillidae)

The measured values of phagocytic membrane uptake between 1 and 8% of the cell surface area/h depend on the variety of size as well as the chemical nature of the different bioparticles and clearly point tophagocytosis as a key mechanism for providing freshwater sponges with nourishment.