Results 1 to 10 of about 361 (104)
Diversity of marine plankton in coral reef ecosystems at Gosong Island, Southwest Aceh [PDF]
E3S Web of Conferences, 2022 Plankton is a fundamental part of the waters, especially in coral reef ecosystems. This study aims to determine the abundance and diversity of plankton species, both phytoplankton, and zooplankton in the waters of Gosong Island, Southwest Aceh.
Najmi Nurul +3 more
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The phylum Vertebrata: a case for zoological recognition [PDF]
Zoological Letters, 2018 The group Vertebrata is currently placed as a subphylum in the phylum Chordata, together with two other subphyla, Cephalochordata (lancelets) and Urochordata (ascidians). The past three decades, have seen extraordinary advances in zoological taxonomy and
Naoki Irie +2 more
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CiC3-1a-Mediated Chemotaxis in the Deuterostome Invertebrate Ciona intestinalis (Urochordata) [PDF]
The Journal of Immunology, 2003 Abstract Deuterostome invertebrates possess complement genes, and in limited instances complement-mediated functions have been reported in these organisms. However, the organization of the complement pathway(s), as well as the functions exerted by the cloned gene products, are largely unknown.
Pinto MR +8 more
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Temporal and spatial distribution of Thaliacea of the Urochordata around Hormuz Island, the Persian Gulf [PDF]
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2011 The class Thaliacea belongs to Urochordata which branched from phylum chordata. Thaliacea have three orders: Doliolida (Cyclomyaria), Pyrosomatida and Salpida (Desmomyaria) and all are considered marine plankton, holoplankton and microphages.
M. Eftekhar* ; A. Savari; H. Rezaei; A.R. Mahoori; R. Zare
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Are Melanocortin Receptors Present in Extant Protochordates?
BiomoleculesFunctional melanocortin receptor (MCR) genes have been identified in the genomes of early chordates, e.g., the cyclostomata. Whether they appear in the most ancient chordates such as cephalochordate and urochordata, however, remains unclear due to ...
Ren-Lei Ji +4 more
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Sub-Phylum Tunicata (Urochordata)
, 1962 Three main divisions of this ancient group have been recognised: (1) the sessile Ascidiacea, (2) the Thaliacea, and (3) the Appendicularia. Each has an organisation which, when taken as a whole, is ‘significantly unique in itself’ (Berrill). The tunicates are marine. The Ascidiacea are all sessile, whilst the other two groups are pelagic.
T. Jeffery Parker, William A. Haswell
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SPERM CHEMOTAXIS IN OIKOPLEURA DIOICA FOL, 1872 (UROCHORDATA: LARVACEA)
The Biological Bulletin, 1983 An alcohol extract of unfertilized eggs of the larvacean, Oikopleura dioica, can attract sperm over a distance of at least 80 µm from an artificial source. The sperm, which normally swim in wide circles or straight lines, alter their path to form small loops between straight or slightly curved segments directed up the gradient.
Miller, Richard L, King, Kenneth R
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Taxonomic Study of Family Doliolidae (Urochordata: Thaliacea: Doliolida) from Korea [PDF]
Animal Systematics, Evolution and Diversity, 2010 Four species in two genera of the family Doliolidae are identified and re-described in Korean waters: Doliolum denticulatum Quoy and Gaimard, 1834, Doliolum nationalis Borgert, 1894, Dolioletta gegenbauri (Uljanin, 1884), and Dolioletta tritonis (Herdman, 1888). Dolioletta gegenbauri is newly recorded in Korean fauna.
Sun-Woo Kim, Jea-Hyun Lee, Chang-Bae Kim
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TAXONOMIC CORRELATES OF BIOLUMINESCENCE AMONG APPENDICULARIANS (UROCHORDATA: LARVACEA)
The Biological Bulletin, 1985 Larvaceans, common members of marine plankton communities, filter-feed with renewable, external, mucous houses. The houses of some species of Oikopleuridae produce endogenous bioluminescent flashes upon mechanical stimulation and may contribute significantly to surface luminescence.
Galt, Charles P +2 more
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The morphology of allograft rejection in Styela plicata (Urochordata: Ascidiacea)
Cell and Tissue Research, 1990 This study identifies three discrete processes responsible for the rejection of tunic tissue transplanted between individuals of the solitary ascidian Styela plicata. The first stage of rejection is characterized by the destruction of blood vascular components within incompatible allografts.
David A. Raftos
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