Results 91 to 100 of about 10,631 (210)

Primer registro de la medusa urticante invasora Gonionemus vertens en el hemisferio sur (Mar del Plata, Argentina) [PDF]

open access: yes, 2014
En este trabajo registra el primer hallazgo de la hidromedusa Gonionemus vertens Agassiz, 1862 en el hemisferio sur. Alrededor de 30 medusas recientemente liberadas fueron encontradas en un acuario en septiembre de 2008.
Genzano, Gabriel Nestor   +3 more
core  

The Phylum Cnidaria: A Review of Phylogenetic Patterns and Diversity 300 Years After Linnaeus [PDF]

open access: yes, 2007
Systema Naturae includes representatives of every major lineage of the animal phylum Cnidaria. However, Linnaeus did not classify the members of the phylum as is now done, and the diversity of the group is not well represented.
Brugler, Mercer R.   +11 more
core   +3 more sources

Biological surveys reveal unexpectedly high faunal diversity at Nankai Trough methane seeps

open access: yesEcosphere, Volume 16, Issue 11, November 2025.
Abstract Cold seeps are chemosynthesis‐based ecosystems powered by microbial primary production that support diverse and specialized faunal assemblages in the deep sea. Despite Nankai Trough in Japan being a geologically active margin hosting numerous seeps, much of the faunal diversity remains undocumented.
Chong Chen   +6 more
wiley   +1 more source

Community composition of epibenthic megafauna on the West Greenland Shelf [PDF]

open access: yes, 2015
Epibenthic organisms are a critical component of the marine environment, functioning as ecosystem engineers, habitat and food for other organisms. Our knowledge of the diversity, complexity and sensitivities of these habitats is limited, particularly at ...
Blicher, ME   +7 more
core   +1 more source

Life Cycle Transitions in the Freshwater Jellyfish Craspedacusta sowerbii

open access: yesBiology
Craspedacusta sowerbii is an invasive hydrozoan found globally in freshwater habitats. C. sowerbii has a complex life cycle that includes benthic, pelagic, dispersal and dormant stages.
Kent Winata   +6 more
doaj   +1 more source

Molecular Phylogenetics of Thecata (Hydrozoa, Cnidaria) Reveals Long-Term Maintenance of Life History Traits despite High Frequency of Recent Character Changes [PDF]

open access: yes, 2017
Two fundamental life cycle types are recognized among hydrozoan cnidarians, the benthic (generally colonial) polyp stage either producing pelagic sexual medusae or directly releasing gametes elaborated from an attached gonophore.
Couloux, Arnaud   +4 more
core  

Phylogenetics of Hydroidolina (Hydrozoa: Cnidaria) [PDF]

open access: yes, 2017
Hydroidolina is a group of hydrozoans that includes Anthoathecata, Leptothecata and Siphonophorae. Previous phylogenetic analyses show strong support for Hydroidolina monophyly, but the relationships between and within its subgroups remain uncertain.
Cartwright, Paulyn   +6 more
core  

Mini-Collagens in Hydra Nematocytes [PDF]

open access: yes, 1991
We have isolated and characterized four collagen-related c-DNA clones (N-COL 1, N-COL 2, N-COL 3, N-COL 4) that are highly expressed in developing nematocytes in hydra.
David, Charles N.   +4 more
core   +2 more sources

AXOPORA AGGTELEKENSIS SCHOLZ, 1972, ORIGINALLY DESCRIBED AS HYDROZOA, IS ATTRIBUTED TO THE NEW GENUS ANISOPHYTES (CYANOPHYTA?)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2007
Examination of the calcareous microfossil from the Anisian reef limestones of the Aggtelek Mountains, northern Hungary, described as Axopora aggtelekensis by Scholz, supports the cyanobacterian nature of this organism.
BABA SENOWBARI-DARYAN   +1 more
doaj   +1 more source

The taxonomic status of the genus Stylactaria Stechow, 1921 (Hydroidomedusae, Anthomedusae, Hydractiniidae), with the description of a new species [PDF]

open access: yes, 1997
The status of all the species ascribed in the literature to Stylactaria is discussed, that nominal genus is considered a congener of Hydractinia and a new species (Hydractinia calderi n. sp.) is described. The medusae of the medusa-based genera Hansiella
Bouillon, J.   +2 more
core  

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