New carnivorous sponges (Cladorhizidae:Poecilosclerida:Demospongiae) from off Diego Ramírez Archipelago (south Chile), with comments on taxonomy and biogeography of the family

Lopes, Daniela A.; Bravo, A.; Hajdu, Eduardo

doi:10.1071/is11015

Cited by 25 publications

(37 citation statements)

References 17 publications

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“…This new species differs from A. delicata (Lopes et al, 2011) in the absence of microstrongyles and palmate isochelae. Asbestopluma monticola differs from A. magnifica (Lopes et al, 2011) in being much smaller (~50% less) in total length, in having a single size class of anisochelae, and having a microtylostrongyle. When compared to A. furcata (Lundbeck, 1905), A. monticola has larger megascleres and only one size class of anisochelae (A. furcata has two size classes of anisochelae).…”

Section: Systematicsmentioning

confidence: 91%

“…This new species differs from A. bitrichela (Lopes et al, 2011) in a lack of desmas and anchorate/ unguiferate anisochelae. Asbestopluma rickettsi differs from A. delicata (Lopes et al, 2011) in absence of microstrongyles and palmate isochelae. It differs from A. magnifica (Lopes et al, 2011) considerably in size (A. magnifica is ~50% longer), in size classes of megascleres (A. rickettsi has larger styles), a larger anisochelae 1 size (~34 µm vs. 52 µm) and presence of large alae of large anisochelae.…”

Section: Systematicsmentioning

confidence: 93%

“…Asbestopluma monticola resembles A. desmophora (Kelly and Vacelet, 2011), however, it lacks desmas and sigmancistras and has bent fusiform styles in its basal cone. Asbestopluma monticola differs from A. bitrichela (Lopes et al, 2011) in a lack of desmas and anchorate/ unguiforate anisochelae. This new species differs from A. delicata (Lopes et al, 2011) in the absence of microstrongyles and palmate isochelae.…”

Section: Systematicsmentioning

confidence: 99%

“…Asbestopluma monticola differs from A. bitrichela (Lopes et al, 2011) in a lack of desmas and anchorate/ unguiforate anisochelae. This new species differs from A. delicata (Lopes et al, 2011) in the absence of microstrongyles and palmate isochelae. Asbestopluma monticola differs from A. magnifica (Lopes et al, 2011) in being much smaller (~50% less) in total length, in having a single size class of anisochelae, and having a microtylostrongyle.…”

Section: Systematicsmentioning

confidence: 99%

“…In situ, A. rickettsi is more transparent and much more delicate looking than A. monticola. A comparison of spicule data for all known Asbestopluma species through 2011 is published in Lopes et al (2011). Type locality.…”

Section: Systematicsmentioning

confidence: 99%

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Four new species of Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) from the Northeast Pacific

Lundsten

Reiswig

Austin³

2014

Zootaxa

686

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Interest in cladorhizid sponges has grown rapidly in the past 19 years since a unique feeding strategy, carnivory, was described by Vacelet and Boury-Esnault in 1995. Since that time, 31% of the 133 extant cladorhizids have been described. Previously, seven species of cladorhizid sponges were known from the Northeast Pacific. Here we describe four additional species, including two species of Asbestopluma and two species of Cladorhiza. We report on species ranges, habitat, and ecology, including one from a chemosynthetic environment that appears to be using methane-oxidizing bacteria as a nutrient source. In fact, three of the four species described here were found in chemosynthetic habitats. The presence of small crustacean prey was also documented for three of these species.

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Section: Systematicsmentioning

confidence: 91%

Section: Systematicsmentioning

confidence: 93%

Section: Systematicsmentioning

confidence: 99%

Section: Systematicsmentioning

confidence: 99%

Section: Systematicsmentioning

confidence: 99%

See 3 more Smart Citations

Four new species of Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) from the Northeast Pacific

Lundsten

Reiswig

Austin³

2014

Zootaxa

686

View full text Add to dashboard Cite

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Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean)

et al. 2022

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In the Antarctic seas, where hard substrates are scarce, the presence of secondary bio-substrates formed by calcareous organisms is an essential condition to increase the epibiosis and therefore the diversity of sessile benthic fauna. The aggregations of stylasterid hydrozoa, with their branched carbonate structures, are an example of a secondary habitat defined as a 'deep marine animal forest'. The three-dimensional habitat made by these corals supports a high biodiversity of associated organisms, usually invertebrates. Recently, deep remotely operated vehicle (ROV) exploration of the Iselin Bank and the Hallett Ridge (Ross Sea, Antarctica) documented wide areas characterised by large thanatocoenosis of stylasterid skeletons lying on flat muddy substrates, with scattered living colonies generally made of few short branches. In our study, sponges associated with 54 dead colonies of two stylasterid species recorded in these areas were investigated. The analysis led to the discovery of a remarkable number of specimens (127) ascribed to 38 sponge species (31 encrusting and 7 massive). Two of these sponges, Asbestopluma (Asbetopluma) sinuosa and Lissodendoryx (Ectyodoryx) inferiolabiatae, are new. In light of the present data, we can assume that, in Antarctica, stylasterid skeletal remains, due to their three-dimensional structure, play an important role in maintaining sponge biodiversity. This is also due to the ability of sponge specie to produce miniaturised specimens able to colonise these peculiar substrata.

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An exceptional occurrence of deep-sea sponges in the region of former Larsen Ice Shelves, Antarctic Peninsula, with the description of two new species

Buskowiak

Janussen

2021

Mar. Biodivers.

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Two new species of deep-sea sponges from the Weddell Sea are described. Both are new to science: a carnivorous Demospongiae species Abyssocladia antarctica sp. nov. and a Hexactinellida species Caulophacus leonieae sp. nov., the latter characterized by a new type of microscleres. Both were sampled at the former Larsen Ice Shelf region, Antarctic Peninsula, that was covered by ice until recent breakup events started in 1995. Abyssocladia Lévi, 1964 and Caulophacus Schulze, 1886 are well-known genera in the deep sea but were discovered here at only 200–300 m depths. The findings support the hypothesis that deep-sea and sub-shelf environments provide similar life conditions. These discoveries should urge us to further investigate areas of disintegrated Antarctic shelf ice as soon as possible, since new trophic conditions may have a severe impact on biodiversity and faunal composition.

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New carnivorous sponges (Cladorhizidae:Poecilosclerida:Demospongiae) from off Diego Ramírez Archipelago (south Chile), with comments on taxonomy and biogeography of the family

Cited by 25 publications

References 17 publications

Four new species of Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) from the Northeast Pacific

Four new species of Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) from the Northeast Pacific

Sponges associated with stylasterid thanatocoenosis (Cnidaria, Hydrozoa) from the deep Ross Sea (Southern Ocean)

An exceptional occurrence of deep-sea sponges in the region of former Larsen Ice Shelves, Antarctic Peninsula, with the description of two new species

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