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Michelle Kelly - One of the best experts on this subject based on the ideXlab platform.

  • description of two new species of dysidea porifera demospongiae Dictyoceratida dysideidae from tauranga harbour bay of plenty new zealand
    Zootaxa, 2020
    Co-Authors: Samuel Mc P Cormack, Michelle Kelly, Christopher N Battershill
    Abstract:

    Differentiation of species within the genus Dysidea Johnston, 1842 (Order Dictyoceratida Minchin, 1900, Family Dysideidae Gray, 1867) is extremely difficult as they lack spicules which are strongly diagnostic in other Demospongiae, and their primary and secondary fibres and the mesh that they form, may be irregular in shape and thickness, thus difficult to measure for comparisons. Here we review species of Dysidea known from the New Zealand Exclusive Economic Zone (EEZ), validating five species: Dysidea cristagalli Bergquist, 1961a, from the Hauraki Gulf; D. hirciniformis (Carter, 1885a) sensu Dendy (1924), from North Cape; D. navicularis Lendenfeld, 1888, from Port Lyttleton on the east coast of the South Island; D. ramsayi (Lendenfeld, 1888) from the Chatham Islands; D. spiculivora Dendy, 1924, from Cape Maria Van Diemen and the Three Kings Islands to the north of New Zealand. Dysidea fragilis (Montagu, 1818) sensu Bergquist (1961b), from Mernoo Bank on Chatham Rise, is now considered to be invalid, and D. elegans (Nardo, 1847) sensu Brondsted (1927), from the Coromandel Peninsula, is considered unrecognisable. Several partially characterised species have also been cited in the literature. Two new species from Tauranga Harbour, on the northeast coast of the North Island, Dysidea tuapokere sp. nov. and D. teawanui sp. nov., are described. These descriptions are based on fresh material and in situ photography, facilitating clear, informative descriptions, that will enable ease of identification of these species in the future.

  • Reconstructing ordinal relationships in the Demospongiae using mitochondrial genomic data
    Molecular Phylogenetics and Evolution, 2008
    Co-Authors: Dennis V. Lavrov, Xiujuan Wang, Michelle Kelly
    Abstract:

    Class Demospongiae (phylum Porifera) encompasses most of sponges’ morphological and species diversity. It also represents one of the most challenging and understudied groups in animal phylogenetics, with many higher-level relationships still being unresolved. Among the unanswered questions are the most fundamental, including those about the monophyly of the Demospongiae and the relationships among the 14 recognized orders within the class. The lack of resolved phylogeny hampers progress in studies of demosponge biology, evolution and biodiversity and may interfere with the efficient conservation and economic use of this group. We addressed the question of demosponge relationships using mitochondrial genomic data. We assembled a mitochondrial genomic dataset comprising all orders of demosponges that includes 17 new and five previously published complete demosponge mitochondrial genomes. To test for the congruence between mtDNA-based and nuclear rRNA-based phylogenies, we also determined and analyzed 18S rRNA sequences for the same set of species. Our results provide strong support for five major clades within the Demospongiae: Homoscleromorpha = G0 (order Homosclerophorida), Keratosa = G1 (orders Dendroceratida, Dictyoceratida, and Verticillitida), Myxospongiae = G2 (orders Chondrosida, Halisarcida, and Verongida), marine Haplosclerida = G3 and the rest of demosponges = G4 (orders Agelasida, Astrophorida, Hadromerida, Halichondrida, Poecilosclerida, Spirophorida, and freshwater Haploscerida), and for the (G0((G1 + G2)(G3 + G4)) relationships among these clades. Conversely, mitochondrial genomic data do not support the monophylies of traditional subclasses Ceractinomorpha and Tetractinomorpha as well as several currently recognized orders of demosponges. Furthermore, we demonstrate that mitochondrial gene arrangements can also be informative for the inference of order-level demosponge relationships and propose a modified method for the analysis of gene order data that works well when translocation of tRNA genes are more frequent than other rearrangements.

  • Secondary metabolites from three Florida sponges with antidepressant activity.
    Journal of Natural Products, 2008
    Co-Authors: Anna J. Kochanowska, S. Childress, Abir T. El-alfy, Gina S. Stewart, Rae R Matsumoto, Kenneth J. Sufka, Michelle Kelly, Mark T Hamann
    Abstract:

    Brominated indole alkaloids are a common class of metabolites reported from sponges of the order Verongida. Herein we report the isolation, structure determination, and activity of metabolites from three Florida sponges, namely, Verongula rigida (order Verongida, family Aplysinidae), Smenospongia aurea, and S. cerebriformis (order Dictyoceratida, family Thorectidae). All three species were investigated chemically, revealing similarities in secondary metabolites. Brominated compounds, as well as sesquiterpene quinones and hydroquinones, were identified from both V. rigida and S. aurea despite their apparent taxonomic differences at the ordinal level. Similar metabolites found in these distinct sponge species of two different genera provide evidence for a microbial origin of the metabolites. Isolated compounds were evaluated in the Porsolt forced swim test (FST) and the chick anxiety−depression continuum model. Among the isolated compounds, 5,6-dibromo-N,N-dimethyltryptamine (1) exhibited significant antide...

  • aquaculture trials of the new zealand bath sponge spongia heterofibria manipulatus using lanterns
    New Zealand Journal of Marine and Freshwater Research, 2004
    Co-Authors: Michelle Kelly, Sean J Handley, Michael J Page, Paul Butterfield, Bruce Hartill, Shane Kelly
    Abstract:

    Abstract A submarine lantern system was trailed in the aquaculture of explants of the endemic New Zealand bath‐sponge Spongia (Heterofibria) manipulatus (Demospongiae: Dictyoceratida: Spongiidae) at four New Zealand sites, two in the Marlborough Sounds and two off Coromandel Peninsula. The main objectives were to compare growth rates of explants at different sites, compare these with those of control sponges, and to assess the utility of these lanterns for the culture of this species. After a period of 13 months, sponges at exposed Bonne Point in the Marlborough Sounds were on average 73% larger in estimated volume than at the start of the experiments. Growth rates of explants at exposed Port Charles, Coromandel, showed no significant change over the study period, although positive growth over spring 2003 was evident. Sponge explants at sheltered Wairangi Inlet and Kennedy Bay, in the Marlborough Sounds and Coromandel, respectively, did poorly, with most explants regressing in size and becoming moribund. ...

  • non destructive video image analysis method for measuring growth in sponge farming preliminary results from the new zealand bath sponge spongia heterofibria manipulatus
    New Zealand Journal of Marine and Freshwater Research, 2003
    Co-Authors: Sean J Handley, Shane Kelly, Michelle Kelly
    Abstract:

    Abstract The skeleton of the New Zealand endemic sponge Spongia (Heterofibria) manipulatus (Demospongiae: Dictyoceratida: Spongiidae) has physical qualities that make it suitable for use as a bath‐sponge. The species is particularly abundant around exposed coastlines of D'Urville Island in the Marlborough Sounds and on the east coasts of Northland and Coromandel Peninsula. Growth rates and changes in the shape of explants of S. (H.) manipulatus were monitored for a period of 12 months on a pilot marine farm near D'Urville Island, using digital video image analysis. This nondestructive method proved to be an accurate means of monitoring sponges for changes in size when compared with repeated wet‐weighing ex situ. Sponge explants increased in size by an average of 28.5% from September 2000 to June 2001, after which growth varied markedly to September 2001, with most of the explants changing little or shrinking in size. Implications of the biological and physical characteristics of S. (H.) manipulatus, for t...

Patricia R. Bergquist - One of the best experts on this subject based on the ideXlab platform.

  • speciation and biosynthetic variation in four dictyoceratid sponges and their cyanobacterial symbiont oscillatoria spongeliae
    Chemistry & Biology, 2005
    Co-Authors: Christian P Ridley, Patricia R. Bergquist, John N. A. Hooper, John D Faulkner, Mary Kay Harper, Margo G Haygood
    Abstract:

    Four species of marine sponges (Phylum Porifera, Order Dictyoceratida), which contain the filamentous cyanobacterial symbiont Oscillatoria spongeliae, were collected from four locations in Palau. The halogenated natural products associated with the symbiont were characterized from each sample, revealing that each species contained either chlorinated peptides, brominated diphenyl ethers, or no halogenated compounds. Analysis of the host sponges and the symbionts indicated that each species of sponge contained a distinct strain of morphologically similar cyanobacteria. Although cospeciation may be present in this group, we have identified that at least one host switching event has occurred in this symbiosis. Only the strain of O. spongeliae in the sponge containing the chlorinated compounds possessed genes involved in the biosynthesis of chlorinated leucine precursors, indicating that the chemical variation observed in these animals has a genetic foundation.

  • order Dictyoceratida minchin 1900
    2002
    Co-Authors: Steve C De Cook, Patricia R. Bergquist
    Abstract:

    Dictyoceratida Minchin (Demospongiae) is constituted of four families and thirty six described and valid genera, several additional genera are known but have not yet been described. Sponges are tough and flexible, they are hard if debris infiltrates the matrix, or the skeletal mesh is condensed, soft when the density of the fibre skeleton in relation to soft tissue volume is reduced. The surface is typically conulose, except where densely armoured as in some species of Psammocinia. Fibres are anastomosing and, except in two genera, have a hierarchical arrangement with respect to diameter and surface orientation with primary, secondary and sometimes tertiary elements present. Fibre composition is homogeneous with growth laminae just apparent, or pithed and strongly laminated with bark and pith elements, the whole being always tightly adherent.

  • new species of spongia porifera demospongiae Dictyoceratida from new zealand and a proposed subgeneric structure
    New Zealand Journal of Marine and Freshwater Research, 2001
    Co-Authors: Steve Cook, Patricia R. Bergquist
    Abstract:

    Abstract This paper is the fifth in a series revising the taxonomy of New Zealand dictyoceratid sponges (phylum Porifera, subclass Ceractinomorpha, order Dictyoceratida). Six new species of the genus Spongia are added to New Zealand's known fauna. The use of subgenera within the genus Spongia is discussed, and two new subgenera are proposed. The genus Hippospongia is revised, and an emended generic diagnosis is proposed.

  • two new genera and five new species of the cacospongia group porifera demospongiae Dictyoceratida
    Zoosystema, 2000
    Co-Authors: Steve Cook, Patricia R. Bergquist
    Abstract:

    Cet article est le quatrieme d'une serie revisant la taxonomie des eponges dictyoceratides (phylum Porifera, classe Demospongiae, ordre Dictyoceratida) de Nouvelle-Zelande. Dans ce travail, le genre d'eponges thorectides Cacospongia Schmidt est redefini de facon a rendre ce taxon moins ambigu et a mieux tenir compte de la morphologie de l'espece-type, Cacospongia mollior Schmidt, 1862. Le nouveau genre Scalarispongia n. gen. est etabli pour des eponges prealablement classees dans Cacospongia, et Cacospongia scalaris Schmidt, 1862 est designe comme l'espece-type. Un troisieme genre, Semitaspongia n. gen., est propose pour recevoir un autre groupe d'eponges qui sont semblables a C. scalaris Schmidt, mais qui montrent des differences morphologiques constantes dans le squelette de fibres et dans le collagene du mesohyle. Cinq especes non decrites de Nouvelle-Zelande, auparavant presumees appartenir a Cacospongia, ont ete attribuees a Semitaspongia n. gen. : Semitaspongia incompta n. sp., S. glebosa n. sp., S. nigracorda n. sp., S. pulvinata n. sp., et S. bactriana n. sp. Semitaspongia incompta est designee comme espece-type. Une espece de ce groupe de genres a deja ete signalee en Nouvelle-Zelande, et est transferee dans Cacospongia.

  • New species of dictyoceratid sponges from New Zealand: Genus Ircinia (Porifera: Demospongiae: Dictyoceratida)
    New Zealand Journal of Marine and Freshwater Research, 1999
    Co-Authors: Steve Cook, Patricia R. Bergquist
    Abstract:

    Abstract This paper is the third in a series revising the taxonomy of New Zealand dictyoceratid sponges (phylum Porifera, class Ceractinomorpha, order Dictyoceratida). Only one species of Ircinia has previously been described from New Zealand, Ircinia novaezealandiae Bergquist, 1961. Six new species of Ircinia are added to New Zealand's known fauna. The genus Ircinia contains in excess of 40 published species worldwide, although the integrity of some of these is uncertain, often because of poor diagnoses. The diagnoses of new species reported here provide a model for the morphological descriptions of future species. The subdivision of Ircinia is also considered.

Chung Ja Sim - One of the best experts on this subject based on the ideXlab platform.

  • eight new species of genus coscinoderma demospongiae Dictyoceratida spongiidae from chuuk island the federated states of micronesia
    Animal Systematics Evolution and Diversity, 2014
    Co-Authors: Chung Ja Sim, Young A Kim
    Abstract:

    This paper describes eight new species of the genus Coscinoderma from Chuuk Island, the Federated States of Micronesia. This genus is characterized by very fine, meandering uncored secondary fibres. All the new Coscinoderma species are compared with eight other valid species from tropical regions. Coscinoderma folium n. sp. is characterized by its large thickly foliate shape, and cored primary fibres are easily found between secondary fibres in choanosome. Coscinoderma lacium n. sp. differs in having round conules and no cored primary fibres. Coscinoderma cavernosa n. sp. is distinguished from other species by its cavernous shape and long sharp conules. Coscinoderma wenoa n. sp. is characterized by long conules and primary fibres. Coscinoderma mappula n. sp. differs in having a thick sand crust in the choanosome. Coscinoderma bakusi n. sp. is characterized by having several oscules at the top of the sponge and color changed grey to dark brown in alcohol. Coscinoderma pollax n. sp. is characterized by having a small thumb shape. Coscinoderma truki n. sp. similar to C. pollax in shape but differs in cored primary fibres with many spicules.

  • four new species of the genus hyattella Dictyoceratida spongiidae from korea
    Animal Systematics Evolution and Diversity, 2014
    Co-Authors: Chung Ja Sim, Kyung Jin Lee
    Abstract:

    Four new species of the genus Hyattella (Dictyoceratida: Spongiidae); H. sinchangensis n. sp., H. mara n. sp., H. chuja n. sp. and H. lendenfeldi n. sp., were collected from Jeollanam-do and Jeju-do, Korea. Hyattella sinchangensis n. sp., H. mara n. sp., H. chuja n. sp. and H. grobosa Lendenfeld, 1889 are very similar to each other in some characters. However, Hyattella sinchangensis n. sp. characterized by no special dermal lamella and no tertiary fibres, and more thin secondary fibres than H. globosa. Hyattella mara n. sp. is differs in having well developed dermal lamella, slightly fasciculated primary fibres, and thick tertiary fibres. Hyattella chuja n. sp. differs in surface characters with a slightly elevated part, skeleton with abundant spongine, and very complex meshes. Hyattella lendenfeldi n. sp. is similar to H. tenella (Lendenfeld, 1889) in skeletal structure, thickness of primary and secondary fibres, but differs in growth form.

  • a new species of the genus hippospongia demospongiae Dictyoceratida from korea
    Animal Systematics Evolution and Diversity, 2011
    Co-Authors: Kyung Jin Lee, Chung Ja Sim
    Abstract:

    Sponges of the family Spongiidae are poorly known in Korean waters. This paper describes Hippospongia bergquistia n. sp. of the family Spongiidae (Demospongiae: Dictyoceratida) collected from Moselpo, Jejudo Island, Korea in 2007. This new species has a cavernous construction, rare pseudo-tertiary fibre, and rare primary fibres.

  • a new species of the genus narrabeena demospongiae Dictyoceratida thorectidae from korea
    Animal Systematics Evolution and Diversity, 2010
    Co-Authors: Hye Ri Kim, Chung Ja Sim
    Abstract:

    A new species of the family Thorectidae, Narrabeena nigra n. sp. is described. This species was collected from the front of Songaksan, Daejeong-eup, Seogwipo-si, Jejudo Island, Korea. Narrabeena nigra n. sp. is similar to Narrabeena lamellate (Bergquist, 1980) with uncored primary and secondary fibres and an unarmoured surface. They differ in growth form, colour, and fibres.

  • two new spongia species Dictyoceratida spongiidae from korea
    Animal Cells and Systems, 2009
    Co-Authors: Hye Ri Kim, Chung Ja Sim
    Abstract:

    Abstract Two new species of the family Spongiidae, Spongia (Heterofibria) corallina n. sp. and Spongia (Heterofibria) purpurea n. sp. are described. They were collected from Gageodo Island, Jeollanam‐do, Korea. Spongia (H.) corallina n. sp. is closest to S. (H.) cristata Cook & Bergquist (2001) from New Zealand in skeletal features, but the new species differs from S. (H.) cristata by the arrangement of fibres and growth form. Spongia (H.) purpurea n. sp. closley resembles S. (H.) cristata, but the new species differs from New Zealand specimens by the arragement and thickness of pseudo‐tertiary fibres.

Pinheiro Ulisses - One of the best experts on this subject based on the ideXlab platform.

John N. A. Hooper - One of the best experts on this subject based on the ideXlab platform.

  • Soft sponges with tricky tree: On the phylogeny of dictyoceratid sponges
    Journal of Zoological Systematics and Evolutionary Research, 2020
    Co-Authors: Dirk Erpenbeck, Steve Cook, John N. A. Hooper, Adrian Galitz, Merrick Ekins, Rob W. M. Van Soest, Gert Wörheide
    Abstract:

    Keratose (horny) sponges constitute a very difficult group of Porifera in terms of taxonomy due to their paucity of diagnostic morphological features. (Most) keratose sponges possess no mineral skeletal elements, but an arrangement of organic (spongin) fibers, with little taxonomic or phylogenetic information. Molecular phylogenetics have targeted this evolutionary and biochemically important lineage numerous times, but the conservative nature of popular markers combined with ambiguous identification of the sponge material has so far prevented any robust phylogeny. In the following study, we provide a phylogenetic hypothesis of the keratose order Dictyoceratida based on nuclear markers of higher resolution potential (ITS and 28S C-region), and particularly aim for the inclusion of type specimens as reference material. Our results are compared with previously published data of CO1, 18S, and 28S (D3-D5) data, and indicate the paraphyly of the largest dictyoceratid family, the Thorectidae, due to a sister group relationship of its subfamily Phyllospongiinae with Family Spongiidae. Irciniidae can be recovered as monophyletic. Results on genus level and implications on phylogenetic signals of the most frequently described morphological characters are discussed.

  • Affinities of Sponges (Porifera) of the Marquesas and Society Islands, French Polynesia
    Pacific Science, 2013
    Co-Authors: Kathryn A. Hall, Jean Vacelet, Patricia Sutcliffe, John N. A. Hooper, Aline Alencar, Andrzej Pisera, Sylvain Petek, Eric Folcher, John Butscher, Joel Orempuller
    Abstract:

    This article reports on a survey of sponges from the higher-island reefs and slopes of the Marquesas and Society Islands archipelagos, French Polynesia, recording presence/absence and an estimate of local abundance at 109 sites from six and eight islands within each archipelago, respectively. Sponge distributions within archipelagos were relatively homogeneous, showing some differential patterns in affinities between north-south islands, and approximately one-third of the fauna apparently endemic to these archipelagos, but between-archipelago comparisons showed large heterogeneity, with only four of the 75 species shared between both archipelagos. The fauna of the Marquesas Islands (with sites consisting mostly of rocky slopes) was dominated by species in order Poecilosclerida and showed a range of taxonomic diversity similar to that of the remote fauna of the Hawaiian Islands. By comparison, the sponge fauna of the Society Islands sites was dominated by species of order Dictyoceratida, reflecting predominance of coral reef and lagoon sites and associated phototrophic feeding strategies. Parsimony and multivariate statistical analyses comparing French Polynesian sponge faunas with others in the southwestern Pacific showed closest nested faunal similarities between the (Marquesas Islands + Society Islands), (((Tonga + Fiji) + Vanuatu) + New Caledonia), and (North Great Barrier Reef + South Great Barrier Reef) but no or very low similarity between more geographically isolated faunas such as Palau and the collective Great Barrier Reef.

  • co i barcoding reveals new clades and radiation patterns of indo pacific sponges of the family irciniidae demospongiae Dictyoceratida
    PLOS ONE, 2010
    Co-Authors: Judith Poppe, Patricia Sutcliffe, John N. A. Hooper, Gert Wörheide, Dirk Erpenbeck
    Abstract:

    Background 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.

  • speciation and biosynthetic variation in four dictyoceratid sponges and their cyanobacterial symbiont oscillatoria spongeliae
    Chemistry & Biology, 2005
    Co-Authors: Christian P Ridley, Patricia R. Bergquist, John N. A. Hooper, John D Faulkner, Mary Kay Harper, Margo G Haygood
    Abstract:

    Four species of marine sponges (Phylum Porifera, Order Dictyoceratida), which contain the filamentous cyanobacterial symbiont Oscillatoria spongeliae, were collected from four locations in Palau. The halogenated natural products associated with the symbiont were characterized from each sample, revealing that each species contained either chlorinated peptides, brominated diphenyl ethers, or no halogenated compounds. Analysis of the host sponges and the symbionts indicated that each species of sponge contained a distinct strain of morphologically similar cyanobacteria. Although cospeciation may be present in this group, we have identified that at least one host switching event has occurred in this symbiosis. Only the strain of O. spongeliae in the sponge containing the chlorinated compounds possessed genes involved in the biosynthesis of chlorinated leucine precursors, indicating that the chemical variation observed in these animals has a genetic foundation.

  • influence of re orientation on alignment to flow and tissue production in a spongia sp porifera demospongiae Dictyoceratida
    Journal of Experimental Marine Biology and Ecology, 2003
    Co-Authors: Justin I Mcdonald, Keith A Mcguinness, John N. A. Hooper
    Abstract:

    Spongia individuals on intertidal reefs in Darwin Harbour displayed a distinct tendency to orientate towards a strong uni-directional water flow, their longest axis facing across the water current. Individuals rotated by 90° re-orientated tissue to face across the prevailing currents. There were significant differences in growth between re-orientated sponges, and both moved control and undisturbed control treatments. Compared to mean growth rates of −1.27 cm year−1 (from undisturbed controls) and −1.68 cm year−1 (from moved controls), re-orientated individuals had significantly higher growth rates (46.15 cm year−1). Increased volumetric growth of re-orientated individuals was not a result of re-arrangement of existing tissue but a consequence of the production of more sponge tissue, evident by an increase in sponge volume. Increased tissue production identified in this study may be beneficial to researchers growing sponges for aquaculture purposes.