Results 21 to 30 of about 174 (100)

Novel Australian Polyzoinae (Styelidae, Tunicata) [PDF]

open access: yesJournal of Natural History, 2005
Species in the colonial subfamily Polyzoinae demonstrate a range of colonial organisations. Colony form appears to be significant at species level but not to have a phylogenetic significance at gen...
openaire   +1 more source

Cromosomi ed Evoluzione Nella Famiglia Styelidae (Ascidiacea)

open access: yesCaryologia, 1978
RIASSUNTOEsaminando i cromosomi di dieci specie appartenenti alla famiglia Styelidae, sono stati raccolti alcuni indizi che indicano come primitivo il carattere « precoce attivita centromerica ». Smettendo alcuni dati precedenti e stata provata l'alta uniformita cariologica del genere Slyela.Considerando il numero aploide 16 come primitivo, segue che ...
D. Colombera   +2 more
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Phylogeny of the families Pyuridae and Styelidae (Stolidobranchiata, Ascidiacea) inferred from mitochondrial and nuclear DNA sequences [PDF]

open access: yesMolecular Phylogenetics and Evolution, 2009
The Order Stolidobranchiata comprises the families Pyuridae, Styelidae and Molgulidae. Early molecular data was consistent with monophyly of the Stolidobranchiata and also the Molgulidae. Internal phylogeny and relationships between Styelidae and Pyuridae were inconclusive however.
Perez-Portela, Rocio   +3 more
openaire   +5 more sources

Introduced and native Phlebobranch and Stolidobranch solitary ascidians (Tunicata: Ascidiacea) around Salvador, Bahia, Brazil

open access: yesZoologia (Curitiba), 2012
The Port of Salvador (12°58'S, 38°30'W) receives cargo ships from different regions such as southeast Asia, North Atlantic, Mediterranean, Africa, North and South America.
Rosana M. Rocha   +3 more
doaj   +1 more source

An updated 18S rRNA phylogeny of tunicates based on mixture and secondary structure models

open access: yesBMC Evolutionary Biology, 2009
Background Tunicates have been recently revealed to be the closest living relatives of vertebrates. Yet, with more than 2500 described species, details of their evolutionary history are still obscure. From a molecular point of view, tunicate phylogenetic
Shenkar Noa   +9 more
doaj   +1 more source

Botryllus (Ascidiacea, Styelidae) on the Argentine coast

open access: yesNew Zealand Journal of Marine and Freshwater Research
Two species belonging to the genus Botryllus from three localities (five sampling sites) on the Argentine coast (southwestern Atlantic) were identified, based on morphological analyses. Besides, genetic analyses (COI partial sequences) revealed the presence of clade A of the Botryllus schlosseri species complex, which is widely distributed and ...
Anabela Taverna   +4 more
openaire   +2 more sources

Symplegma (Ascidiacea: Styelidae), a non-indigenous genus spreading within the Mediterranean Sea: taxonomy, routes and vectors

open access: yesAquatic Invasions, 2020
Symplegma is a genus of compound ascidians (Fam.Styelidae) with warm water affinities and distribution in tropical and subtropical waters of the Pacific, Indian and Atlantic Oceans.The first record of this genus (as S. viride) in the Mediterranean was from 1951 in the Levantine Sea, presumably entering the basin from the Red Sea through the Suez Canal ...
Alfonso A. Ramos‐Esplá   +6 more
openaire   +5 more sources

New Records of Stolidobranchia (Tunicata: Ascidiacea) from Brazil

open access: yesTaxonomy
New surveys on the Brazilian tropical coast revealed new occurrences of five species in Styelidae (Stolonia sabulosa, Amphicarpa paucigonas, Polyandrocarpa anguinea Polycarpa insulsa, Styela plicata) and one in Molgulidae (Molgula davidi).
Gustavo Antunes Gamba   +1 more
doaj   +1 more source

Dos nuevos registros de ascidias (Tunicata: Ascidiacea) para la costa continental de Chile Two new records of ascidians (Tunicata: Ascidiacea) for the continental coast of Chile

open access: yesRevista Chilena de Historia Natural, 2000
Las ascidias (Tunicata: Ascidiacea) Asterocarpa humilis (Heller, 1878) (Styelidae) y Molgula ficus (Macdonald, 1859) (Molgulidae) se registran por primera vez, para la costa de Chile continental.
MARCELA CLARKE, JUAN CARLOS CASTILLA
doaj  

Evaluation of Cadmium and Lead Detoxification in the Sea Squirt Cnemidocarpa amphora (Kott, 1992) (Stolidobranchia, Styelidae)

open access: yesPakistan Journal of Biological Sciences, 2022
<b>Background and Objective:</b> The entries of trace elements into marine invertebrates are mainly in particulate form whereas the exits to the sea concern dissolved forms so that sea waters contain both dissolved and particular forms of the same element.
openaire   +2 more sources

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