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Showing 1 to 14 of 14 for “"SEA ANEMONES"”.
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The effects of anticholinergic drugs on sea anemones
The first proof of the chemical mediation of nerve impulses by the peripheral release of specific chemicals was made by Loewi (1921). He demonstrated that during stimulation of the vagus nerve leading to an excised frog’s heart (Figure 1) a chemical mediator that he called Vagus-substance was …
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Screening for fluorescent and chromoproteins from South African sea anemones
Sea anemones (Order Actinaria) are a diverse order from the Class Anthozoa. They are found in all marine habitats at all depths and their symbiotic relationships play an important role in energy transfers especially in the benthic-pelagic community. The evolutionary background and phylogenetics of …
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Feeding biology of intertidal sea anemones in the south-western Cape
… abundance and distribution of intertidal sea anemone assemblages were investigated by means of line-transects at two sites on the Cape Peninsula - Wooley's Pool in False Bay and Blouberg in Table Bay. A single species, Bunodactis reynaudi dominated at Blouberg (average density 901 running …
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Multi-component chemical defense in seahares (Gastropoda:Opisthobranchia): antipredator compounds act as both honest and deceptive signals to multiple predator species
… to others? These issues were examined using seahares (Aplysia spp. and Stylocheilus spp.) and their cnidarian, crustacean, and vertebrate predators. Seahares release defensive secretions called ink and opaline from independent glands. In behavioral assays, seahares with full glands versus …
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Neue integrative Ansätze für das Sammeln, Bearbeiten und Beschreiben skelettloser Hexacorallia am Beispiel chilenischer Seeanemonen
… dissertation and exemplified by Chilean sea anemones. The results have been presented in specialist journals and at relevant meetings. To fill existing gaps and to alleviate difficulties, traditional procedures have been combined with modern methods. The applied techniques were tested for …
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The Roles of Ca2+ and cAMP in the Nematocyst Discharge of the Sea Anemone Tentacle
… are aquatic animals, including jellyfish, hydra, sea anemones, and corals. They are the simplest metazoans having a nervous system and are diploblastic. Cnidarians are obligate predators that capture prey using specialized stinging cells called cnidocytes. The cnidocyte contains a nematocyst, …
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Estudo sistemático de duas espécies de Acontiaria (Cnidaria, Anthozoa, Actiniaria) da Baía de Guanabara, Rio de Janeiro, Brasil
Two species of sea anemones (Cnidaria, Anthozoa, Actiniaria) from Guanabara Bay, Rio de Janeiro, Brazil, were studied. They are both from the subtribe Acontiaria Carlgren (in Stephenson, 1935). These anemones are Haliplanella lineata (Verrill, 1869) and a new genus, new species, both of the family …
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ΒΙΟΝΟΜΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΘΑΛΑΣΣΙΩΝ ΑΝΕΜΩΝΩΝ (ACTINIARIA, ANTHOZOA) ΤΟΥ ΘΕΡΜΑΙΚΟΥ ΚΟΛΠΟΥ
THE RESEARCH CARRIED OUT IN THERMAIKOS GULF REVEALED THE PRESENCE OF 15 SPECIESOF SEA ANEMONES. NINE OF THE FIFTEEN SPECIES FOUND, ARE REPORTED FOR THE FIRSTTIME FROM THE EASTERN MEDITERRANEAN AND ONE FROM THE AEGEAN SEA. ACCORDING TO THE SELECTIVE PREFERENCE SHOWED BY THE VARIOUS ANEMONE SPECIES …
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SENSITIVITY AND RESILIENCE OF CNIDARIAN EARLY LIFE PROCESSES TO ANTHROPOGENIC CLIMATE CHANGE
… populations of cnidarians (e.g., corals and sea anemones) on a global scale over recent decades. Conserving and restoring cnidarian populations requires a thorough understanding of these species’ early life processes (i.e., reproduction and development), yet we lack foundational knowledge in …
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Nemo no more? Spatial demographic and population genetic analyses of the two-band anemonefish, Amphiprion bicinctus, in the Gulf of Eilat, Red Sea
Anemonefishes' obligatory mutualism with sea anemones dictates their occurrence on coral reefs. I examined spatial distribution, settlement, habitat usage, and survival patterns of the two-band anemonefish, Amphiprion bicinctus. In a 300 X 30 m study site off the coast of Israel in the Gulf of …
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Multisector Mitigation of Plastic Pollution: Approaches from Biology, Policy, Law and Industry
… pollution is ubiquitous in the ocean. Researchers are actively determining how plastic pollution harms marine animals and which measures should be used to reduce pollution. I use the four pathways to global sustainability (created by Folke et al., 2021) as a guiding framework for this …
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Biological adhesion in wet environments: adaptations and mechanisms
… processes requiring a pressure difference and a seal to maintain it. Through my investigations, I have identified several key principles for biological suction attachments to wet and rough surfaces. Using three-dimensional reconstructions of blepharicerid suction organs and in vivo visualisation …
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Chemoreceptors Regulate Discharge of Microbasic p-mastigophores in the Sea Anemone, AIPTASIA PALLIDA
… cnida discharge on the tentacles of the sea anemone, Aiptasia pallida. These two classes of receptors were shown to interact with glycine and N-acetylneuraminic acid (NANA). We now show that the discharge of the microbasic p-mastigophores, one of the three types of cnidae present on the …
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Interactions of Proteins with Membranes: Insights from Molecular Dynamics Simulations
… Among eukaryotic PFTs, actinoporins (APs) from sea anemones have raised atten- tion in the last years, as models of protein-membrane interaction for α-PFTs and for their biomedical interest. Out of APs, one of the most characterized members is equinatoxin II (EqtII) from Actinia equina. However, …