Results 41 to 50 of about 10,631 (210)
A comparative study of populations of Ectopleura crocea and Ectopleura ralphi (Hydrozoa, Tubulariidae) from the Southwestern Atlantic Ocean [PDF]
, 2014 Ectopleura crocea (L. Agassiz, 1862) and Ectopleura ralphi (Bale, 1884) are two of the nominal tubulariid species re-corded for the Southwestern Atlantic Ocean (SWAO), presumably with wide but disjunct geographical ranges and similar morphologies.
Ale, Ezequiel +2 more
core +1 more source
Nerve net differentiation in medusa development of Podocoryne carnea
Scientia Marina, 2000 The phylum Cnidaria is the most primitive phylum with a well-developed nervous system. Planula larvae and polyps display a diffuse nerve net (plexus), which is densest in the polyp hypostome.
Hans Gröger, Volker Schmid
doaj +1 more source
Marine alien species in Italy: A contribution to the implementation of descriptor D2 of the Marine Strategy Framework Directive [PDF]
, 2019 A re-examination of marine alien species or Non Indigenous Species (NIS) reported in Italian Seas, until December 2018, is provided, focusing on establishment success, year of first record, origin, potential invasiveness, and likely pathways, in ...
Andaloro F. +20 more
core +3 more sources
Character Evolution in Hydrozoa (phylum Cnidaria) [PDF]
Integrative and Comparative Biology, 2010 The diversity of hydrozoan life cycles, as manifested in the wide range of polyp, colony, and medusa morphologies, has been appreciated for centuries. Unraveling the complex history of characters involved in this diversity is critical for understanding the processes driving hydrozoan evolution.
Paulyn, Cartwright, Annalise M, Nawrocki
openaire +2 more sources
Scientia Marina, 2000 A new hydrozoan species, Sarsia marii, is described by using morphological and molecular characters. Both morphological and 16S rDNA data place the new species together with other Sarsia species near the base of a clade that developed, walking tentacles ...
Bernd Schierwater, Andrea Ender
doaj +1 more source
Sertularia marginata (Cnidaria: Hydrozoa) in the Mediterranean: an alien species in expansion? [PDF]
, 2013 Mature and dense populations of the tropical hydroid species Sertularia marginata were detected in the Alboran Sea (Western Mediterranean) and along the Atlantic coast of the Strait of Gibraltar.
Bethencourt Núñez, Manuel +2 more
core +7 more sources
A fragmented metazoan organellar genome [PDF]
, 2008 Background: Animal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and sometimes subdivided into two to presumably four ...
Erpenbeck, Dirk +2 more
core +1 more source
The Histology ofNanomia bijuga(Hydrozoa: Siphonophora) [PDF]
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2014 The siphonophoreNanomia bijugais a pelagic hydrozoan (Cnidaria) with complex morphological organization. Each siphonophore is made up of many asexually produced, genetically identical zooids that are functionally specialized and morphologically distinct.
Church, Samuel H +3 more
openaire +2 more sources
Trends in the diversity, distribution and life history strategy of Arctic Hydrozoa (Cnidaria).
PLoS ONE, 2015 This is the first attempt to compile a comprehensive and updated species list for Hydrozoa in the Arctic, encompassing both hydroid and medusa stages and including Siphonophorae.
Marta Ronowicz +2 more
doaj +1 more source
Toxins, 2017 Stings from the hydrozoan species in the genus Physalia cause intense, immediate skin pain and elicit serious systemic effects. There has been much scientific debate about the most appropriate first aid for these stings, particularly with regard to ...
Christie L. Wilcox +3 more
doaj +1 more source