Results 51 to 60 of about 14,791 (205)

Diversity of Echinoderms in Drini Beach Gunung Kidul, Yogyakarta

open access: yesJurnal Ilmu Dasar, 2023
Research on the diversity of echinoderms at Drini Beach, Gunung Kidul, Yogyakarta has been conducted from December 2020 to July 2021. This study aimed to determine the Echinoderm diversity index.
Intan Mufida   +2 more
doaj   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska   +6 more
wiley   +1 more source

Larval settlement in echinoderms: a review of processes and patterns [PDF]

open access: yes, 2022
Echinoderms are a common component of benthic marine ecosystems, with many being ecologically and/or economically important. Like many marine organisms, most echinoderms have a bipartite life history with a planktonic larval phase and a benthic adult ...
Doll, Peter C.   +5 more
core   +1 more source

Comparative Neurobiology of Biogenic Amines in Animal Models in Deuterostomes

open access: yesFrontiers in Ecology and Evolution, 2020
We review the occurrence of biogenic amines and their potential role as neurotransmitters in the nervous system of three groups of invertebrate deuterostomes: tunicates, cephalochordates, and echinoderms.
Enrico D’Aniello   +4 more
doaj   +1 more source

Genome-wide identification and comparative analysis of Dmrt genes in echinoderms

open access: yesScientific Reports, 2023
The Dmrt (Doublesex-mab3-related transcription factor) gene family is a class of crucial transcription factors characterized by one or several conserved DM (Doublesex/Mab-3) domains.
Quanchao Wang   +4 more
doaj   +1 more source

Morphology and Chemical Messenger Regulation of Echinoderm Muscles

open access: yesBiology, 2023
The muscular systems of echinoderms play important roles in various physiological and behavioral processes, including feeding, reproduction, movement, respiration, and excretion.
Huachen Liu, Muyan Chen
doaj   +1 more source

Conditioning cultured Diadema antillarum through uncaged mid‐water grow‐out shifts behavior and morphology

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction The long‐spined black sea urchin Diadema antillarum is a keystone herbivore on Caribbean reefs, yet population recovery following mass mortality events has been slow and spatially variable. Restocking programs increasingly rely on aquaculture, but rearing conditions may generate behavioral and morphological shifts that affect post‐
Oliver J. Klokman   +3 more
wiley   +1 more source

Understanding form and function of the stem in early flattened echinoderms (pleurocystitids) using a microstructural approach [PDF]

open access: yesPeerJ, 2016
Pleurocystitid rhombiferans are among the most unusual echinoderms whose mode of life has been long debated. These echinoderms are usually interpreted as vagile epibenthic echinoderms, moving over the sea bottom by means of a flexible stem.
Przemysław Gorzelak, Samuel Zamora
doaj   +2 more sources

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

open access: yesSedimentology, EarlyView.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi   +4 more
wiley   +1 more source

Sea urchin holobionts: microbiome variation across species, compartments and locations in Paracentrotus lividus and Arbacia lixula

open access: yesFrontiers in Marine Science
Understanding holobiont dynamics is essential for unraveling the complex interactions between marine hosts and their microbiota. Sea urchins play pivotal roles in shaping benthic ecosystems, yet the functional roles of their microbial symbionts remain ...
Vanessa Arranz   +8 more
doaj   +1 more source

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