Results 41 to 50 of about 1,885 (176)

Embryonic development of the Mediterranean starfish Hacelia attenuata

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo   +3 more
wiley   +1 more source

Discovery and Fine‐Scale Mapping of Hadal Xenophyophore Habitat in the Nova Canton Trough, Central Pacific Ocean

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Discovery and fine‐scale mapping of a hadal xenophyophore field: submersible video transects and photogrammetry enable semi‐automated delineation of xenophyophores, revealing their abundance, spatial organisation, structural complexity and contribution to habitat heterogeneity at ~8000 m depth.
Denise J. B. Swanborn   +5 more
wiley   +1 more source

Phylogenetic relationships and lineage-specific mitochondrial gene rearrangement in Ophiuroidea: insights from mitochondrial genomes

open access: yesFrontiers in Marine Science
Ophiuroids, the most diverse group of echinoderms, inhabit a vast array of ecological niches and play vital roles in benthic ecosystems as suspension feeders, scavengers and opportunists.
Jieying Na   +13 more
doaj   +1 more source

Equinodermos colectados por el oceanografico pesquero "B. C. Academic Knipovic", en el sur de Chile

open access: yesBrazilian Journal of Oceanography, 1980
This is a study of the echinoderms caught during the oceanographic fishery cruise performed by the "B.C. Academic Knipovic" in April, 1973. The recorded specimens are from the South of Chile (45º 08'S; 74º 54'W) and belong to the classes Asteroidea ...
Alfonso Guzmán C
doaj   +1 more source

Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

open access: yesRemote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 444-461, June 2026.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command   +8 more
wiley   +1 more source

Cultura oceânica na Educação Básica

open access: yesRevista da SBEnBIO
O presente relato de experiência docente tem como objetivo apresentar a sequência didática (SD) intitulada: “Como se descobre uma espécie nova? Helena e Cecília sabem e vão te contar”.
Renata Alitto   +2 more
doaj   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

open access: yesFisheries Management and Ecology, Volume 33, Issue 3, Page 612-629, June 2026.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens   +2 more
wiley   +1 more source

Notes on the Echinoderm Fauna of the Tapak Tuan Bay Waters, Aceh Selatan the Nangroe Aceh Darussalam

open access: yesMakara Seri Sains, 2003
A total of 21 species of echinoderms, belonging to of 5 species Holothuroidea, 5 species of Asteroidea, 4 species Echinoidea and 7 species Ophiuroidea have been found in the Tapak Tuan of Aceh Selatan.
Eddy Yusron
doaj  

The complete mitochondrial genome of a deep sea ophiuroid of the genus Amphiura (Ophiuroidea: Amphiuridae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
Amphiura is a widely distributed genus of Ophiuroidea from various environment, play an important role in evolution. Here, we reported a complete mitochondrial genome of Amphiura sp. which was collected from a deep sea seamount in the West Pacific.
Jieying Na   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy