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Showing 1 to 19 of 19 for “"Anthozoa"”.
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ΒΙΟΝΟΜΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΘΑΛΑΣΣΙΩΝ ΑΝΕΜΩΝΩΝ (ACTINIARIA, ANTHOZOA) ΤΟΥ ΘΕΡΜΑΙΚΟΥ ΚΟΛΠΟΥ
THE RESEARCH CARRIED OUT IN THERMAIKOS GULF REVEALED THE PRESENCE OF 15 SPECIESOF SEA ANEMONES. NINE OF THE FIFTEEN SPECIES FOUND, ARE REPORTED FOR THE FIRSTTIME FROM THE EASTERN MEDITERRANEAN AND ONE FROM THE AEGEAN SEA. ACCORDING TO THE SELECTIVE PREFERENCE SHOWED BY THE VARIOUS ANEMONE SPECIES …
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Comportamento reprodutivo de Mussismilia hispida (Verril, 1902) (Cnidaria, Anthozoa, Scleractinia)
Through histological analysis the reproductive pattern of Mussismilia hispida, a zooxanthellate coral species endemic to the Brazilian coast was verified. Fragments from 2 tagged colonies, which were marked in the field in order to be repeatedly sampled, and 10 others haphazardly chosen were …
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Evolutionary patterns within the Anthozoa (phylum Cindaria) reflected in ribosomal gene sequences
… Cnidaria, at the subclass level within the Class Anthozoa, and at the ordinal level within the Subclass Octocorallia. Traditional cladistics using morphological data have resulted in disagreements over taxonomic relationships, primarily due to a paucity of morphological characters within the …
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Revisão sistemática dos Octocorallia (Coelenterata, Anthozoa) dos recifes de Abrolhos, BA, Brasil
… on shallow water Octocorallia (Coelenterata, Anthozoa) from the Abrolhos area, Bahia, Brazil. These studies were based on material from collections in Brazilian and American institutions. The specimens from Abrolhos were compared with specimens of other localities to determine the variation …
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Evolutionary patterns within the Anthozoa (phylum Cindaria) reflected in ribosomal gene sequences
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1998.
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Characterisation of anterior patterning genes in the staghorn coral, Acropora millepora(Cnidaria; Anthozoa; Scleractinia)
To a surprising extent, molecular mechanisms underlying many aspects of development are conserved across the higher (bilateral and triploblastic) Metazoa, but the degree to which similar mechanisms apply to non-bilateral and diploblastic animals such as cnidarians is unclear. The aim of this thesis …
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Octocorallia (Cnidaria: Anthozoa) da plataforma continental e ilhas oceânicas brasileiras: famílias Paramuriceidae e Plexauridae
Fourteen species of octocorals, from the Brazilian continental platform and oceanic islands, from depths between 20 and 400m, were studied regarding aspects of their taxonomy, bathymetry, and geographical distribution. These species included nine Paramuriceidae (Bebryce cinerea, Bebryce sp., …
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Identificação dos coralitos de pólipos fundadores de corais recifais do Brasil (Cnidaria, Anthozoa, Scleractinia)
To study an organism's life history, it is important to identify them throughout their life cycle. ln corals, a complicating factor is the difficulty of identification at their initial stages. The taxonomy of corais is based on skeletal structures present in the adults. The purpose of this study …
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Phylogenetics, systematics and biogeography of deep-sea Pennatulacea (Anthozoa: Octocorallia): evidence from molecules and morphology
… mostly unknown age and phylogeny. Pennatulids (Anthozoa:<br/>Octocorallia) are a group whose taxonomy and phylogenetic relationships remain poorly<br/>known and little studied, in spite of their abundance and ecological importance in softbottom<br/>communities. Phylogenetic analysis of a …
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Taxonomia Integrativa morfo-molecular das espécies de zoantídeos do gênero Protopalythoa (Cnidaria: Anthozoa) em Pernambuco
Zoantídeos são cnidários comuns de águas rasas em todo o mundo e no Brasil compõe a maioria das comunidades de ambiente recifal, principalmente no nordeste brasileiro. Apesar de abundantes são ainda pouco estudados. Apresentam história taxonômica confusa e com descrições vagas. Dentre os gêneros …
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Variação de formas de crescimento de Montastraea cavernosa (Linnaeus, 1767) (Cnidaria, Anthozoa, Scleractinia): uma abordagem modular
Clonal animals grow through addition of functional units (zooids), whose assemblage constitutes a colony. The modular approach consists in describing colony form from the arrangement and size of modules. The modular approach was used here to access variations in growth forms of the coral …
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An ultrastructural study of gametogenesis and early development in the sea anemone <i>Actinia fragecea</i> (Cnidaria : Anthozoa)
Large Individuals of the sea anemone <i>Actinia fragacea</i> were collected at approximately monthly intervals over a two year period. Their gonads were examined by light and electron microscopy, in order to follow the gametogenic process. The sexes are separate, and both show an annual cycle of …
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Estudo sistemático de duas espécies de Acontiaria (Cnidaria, Anthozoa, Actiniaria) da Baía de Guanabara, Rio de Janeiro, Brasil
Two species of sea anemones (Cnidaria, Anthozoa, Actiniaria) from Guanabara Bay, Rio de Janeiro, Brazil, were studied. They are both from the subtribe Acontiaria Carlgren (in Stephenson, 1935). These anemones are Haliplanella lineata (Verrill, 1869) and a new genus, new species, both of the family …
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Microanatomia e sistemática das espécies de Zoanthus Lamarck, 1801 (Cnidaria, Anthozoa, Zoanthidea) do litoral e ilhas oceânicas do Brasil
The species of Zoanthus Lamarck, 1801, that occur on the coast and oceanic islands of Brazil are surveyed and redescribed. Four species are involved: Zoanthus sociatus (Ellis, 1767) is widely distributed from Ceará to São Paulo and also occur on Atol das Rocas, Fernando de Noronha Island and …
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Screening farmacológico e diversidade bacteriana do muco de Palythoa caribaeorum (Cnidaria, Anthozoa) da praia de Porto de Galinhas-PE, Brasil
Palythoa caribaeorum (baba-de-boi) é um cnidário marinho que secreta um muco viscoso o qual apresenta propriedades farmacológicas e abriga uma série de bactérias com potencial de aplicação biotecnológica. No presente trabalho, objetivou-se obtenção desses micro-organismos associados ao muco de …
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Invertebrados fósseis da formação IPU (siluriano), Grupo Serra Grande, Bacia do Parnaíba
… a médio. Os fósseis são atribuídos à ordem Anthozoa (anêmonas-do-mar), filo Cnidaria, pois possuem: disco oral, disco aboral, coluna, tentáculos, abertura bucal, cavidade interna e possivelmente mesentérios. Estudos paleobiológicos apontam capacidade de escavação no substrato, expansão e …
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Introducing the starlet sea anemone Nematostella vectensis as a model for investigating microbial mediation of health and disease in hexacorals
… this is the case of reef-building corals (class Anthozoa, subclass Hexacorallia) where rising seawater temperatures and coastal eutrophication have been correlated to increased prevalence of microbial diseases and coral bleaching. Despite such correlations, factors that govern whether …
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Screening for fluorescent and chromoproteins from South African sea anemones
… Actinaria) are a diverse order from the Class Anthozoa. They are found in all marine habitats at all depths and their symbiotic relationships play an important role in energy transfers especially in the benthic-pelagic community. The evolutionary background and phylogenetics of the class is …