Results 11 to 20 of about 20,536 (259)

Speciation among sympatric lineages in the genus Palythoa (Cnidaria: Anthozoa: Zoantharia) revealed by morphological comparison, phylogenetic analyses and investigation of spawning period [PDF]

open access: yesPeerJ, 2018
Zoantharians are sessile marine invertebrates and colonial organisms possessing sexual and asexual reproductive ability. The zooxanthellate zoantharian genus Palythoa is widely distributed in coral reef ecosystems.
Masaru Mizuyama   +2 more
doaj   +2 more sources

A citizen science approach to monitoring bleaching in the zoantharian Palythoa tuberculosa [PDF]

open access: yesPeerJ, 2016
Coral reef bleaching events are expected to become more frequent and severe in the near future as climate changes. The zoantharian Palythoa tuberculosa bleaches earlier than many scleractinian corals and may serve as an indicator species.
John Everett Parkinson   +5 more
doaj   +2 more sources

A preliminary survey of zoantharian endosymbionts shows high genetic variation over small geographic scales on Okinawa-jima Island, Japan [PDF]

open access: yesPeerJ, 2017
Symbiotic dinoflagellates (genus Symbiodinium) shape the responses of their host reef organisms to environmental variability and climate change. To date, the biogeography of Symbiodinium has been investigated primarily through phylogenetic analyses of ...
Hatsuko Noda   +3 more
doaj   +2 more sources

Chemical Screening Method for the Rapid Identification of Microbial Sources of Marine Invertebrate-Associated Metabolites

open access: yesMarine Drugs, 2011
Marine invertebrates have proven to be a rich source of secondary metabolites. The growing recognition that marine microorganisms associated with invertebrate hosts are involved in the biosynthesis of secondary metabolites offers new alternatives for the
Russell G. Kerr   +4 more
doaj   +1 more source

Molecular signatures of the rediae, cercariae and adult stages in the complex life cycles of parasitic flatworms (Digenea: Psilostomatidae)

open access: yesParasites & Vectors, 2020
Background Parasitic flatworms (Trematoda: Digenea) represent one of the most remarkable examples of drastic morphological diversity among the stages within a life cycle.
Maksim A. Nesterenko   +7 more
doaj   +1 more source

Myogenesis of Siboglinum fiordicum sheds light on body regionalisation in beard worms (Siboglinidae, Annelida)

open access: yesFrontiers in Zoology, 2021
Background Many annelids, including well-studied species such as Platynereis, show similar structured segments along their body axis (homonomous segmentation).
Nadezhda Rimskaya-Korsakova   +6 more
doaj   +1 more source

Marine Invertebrate Xenobiotic-Activated Nuclear Receptors: Their Application as Sensor Elements in High-Throughput Bioassays for Marine Bioactive Compounds

open access: yesMarine Drugs, 2014
Developing high-throughput assays to screen marine extracts for bioactive compounds presents both conceptual and technical challenges. One major challenge is to develop assays that have well-grounded ecological and evolutionary rationales.
Ingrid Richter, Andrew E. Fidler
doaj   +1 more source

Evaluation of Antibacterial Assays for Screening of Marine Invertebrate Extracts

open access: yesSqualen, 2018
Marine environment continuously produces pharmacologically active compounds. To screen marine natural products as a source of potential antibiotics, it is very important to select an accurate and efficient antibacterial assay. This study aims to find out
Nurrahmi Dewi Fajarningsih   +2 more
doaj   +1 more source

Often Overlooked: Understanding and Meeting the Current Challenges of Marine Invertebrate Conservation

open access: yesFrontiers in Marine Science, 2021
Making up over 92% of life in our oceans, marine invertebrates inhabit every zone in the water column, with contributions ranging from ecosystem functioning to socioeconomic development.
Emily Yi-Shyuan Chen
doaj   +1 more source

Diversity of Pacific Agathotanais (Peracarida: Tanaidacea)

open access: yesFrontiers in Marine Science, 2022
Agathotanais is one of the seven genera classified into the family Agathotanaidae. So far, 12 species have been described for the genus, seven of which are known from the Pacific.
Anna Stępień   +4 more
doaj   +1 more source

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