Results 81 to 90 of about 3,654 (204)

Three species of intertidal sea anemones (Anthozoa: Actiniidae) from the Tropical Pacific : Description of anthopleura buddemeieri, n. sp., with remarks on anthopleura asiatica and gyractis sesere [PDF]

open access: yes, 2005
A new species of sea anemone, Anthopleura buddemeieri Fautin, is described from Fiji and Papua New Guinea. Occurring high in the intertidal zone, a typical individual has a column rich brown in color and marked with longitudinal rows of red spots ...
Fautin, Daphne Gail
core   +1 more source

Transmission Electron Microscopy of Coral Tissue

open access: yesCurrent Protocols, Volume 4, Issue 11, November 2024.
Abstract Coral reefs are invaluable ecosystems that are under threat from various anthropogenic stressors. There has been a recent increase in the diagnostic tools utilized to understand how these threats impact coral reef health. Unfortunately, the application of diagnostic tools like transmission electron microscopy (TEM) is not as standardized or ...
Erin Papke   +5 more
wiley   +1 more source

THE TOXICITY OF PHYSALIA NEMATOCYSTS

open access: yesThe Biological Bulletin, 1958
The general composition and conditions of reactivity of the nematocysts and nematocyst contents of Physalia are described. A method is presented for isolation of nematocysts without contamination by other tentacular material. The nematocyst content appears to be a highly labile protein complex.
CHARLES E. LANE, ELEANOR DODGE
openaire   +2 more sources

Nematocysts in four species of corals [PDF]

open access: yes, 1974
The types and d istribution of homatocysts in four coral species were studied. Of the 20 maj or categories or nematocysts recognized in the phylum enidaria, five types were encountered in these four corals. They were holotrichous isorhizas , atrichous
Wafar, M V M
core  

A single gene determines allorecognition in hydrozoan jellyfish Cladonema radiatum inbred lines

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 9, Page 1002-1020, November 2024.
Abstract Allorecognition—the ability of an organism to discriminate between self and nonself—is crucial to colonial marine animals to avoid invasion by other individuals in the same habitat. The cnidarian hydroid Hydractinia has long been a major research model in studying invertebrate allorecognition, establishing a rich knowledge foundation.
Crystal Tang   +7 more
wiley   +1 more source

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

Dermoscopy of Fire Coral (Millepora) Sting: The Clock Sign

open access: yes
JEADV Clinical Practice, Volume 4, Issue 2, Page 574-576, June 2025.
Fátima Mayo‐Martínez, Ruggero Moro
wiley   +1 more source

The role of heterotrophic plasticity in coral response to natural low‐light environments

open access: yesEcology and Evolution, Volume 14, Issue 9, September 2024.
Low‐light environments are driving vertical reef compression and favoring depth generalists within coral communities lying on inshore turbid reefs, highlighting an emerging local threat that is affecting fringing reefs on a global scale. Our study provides direct field evidence that the reef coral Galaxea fascicularis exhibits heterotrophic plasticity,
Yong Luo   +13 more
wiley   +1 more source

Fluid Dynamics of Ballistic Strategies in Nematocyst Firing

open access: yesFluids, 2020
Nematocysts are stinging organelles used by members of the phylum Cnidaria (e.g., jellyfish, anemones, hydrozoans) for a variety of important functions including capturing prey and defense. Nematocysts are the fastest-known accelerating structures in the
Christina Hamlet   +2 more
doaj   +1 more source

High‐Resolution Longitudinal eDNA Metabarcoding and Morphological Tracking of Planktonic Threats to Salmon Aquaculture

open access: yesEnvironmental DNA, Volume 6, Issue 5, September–October 2024.
In the current study, we present and assess an exhaustive approach to identify the planktonic drivers of farmed Atlantic salmon complex gill disease (CGD) and fish mortality. We explored delayed or “lagged” effects of plankton abundances on gill health and undertook a comparison of environmental DNA (eDNA) metabarcoding and microscopy in their ability ...
María Algueró‐Muñiz   +15 more
wiley   +1 more source

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