Results 41 to 50 of about 3,435 (205)

Differentiating hyperpycnal, hypopycnal and turbidity current deposits in late Quaternary glaciogenic mud

The Depositional Record, Volume 12, Issue 1, February 2026.
X‐ray CT and microscopic analysis of glaciogenic mud provide insight into the deposits of sediment‐laden density flows and reveal that strata comprise two microtextural motifs. The deposits of bottom‐hugging hyperpycnal flows and slope‐failure‐related turbidity currents are characterised by laterally continuous, sharply bounded silt‐rich and clay‐rich ...
Omar N. Al‐Mufti, R. William C. Arnott, Marc J. Hinton, Hazen A. J. Russell   +3 more
wiley   +1 more source

Abundance of Meiofauna and Physical-Chemical Parameters as Water Quality Indicator

Ilmu Kelautan, 2019
The zone of Losari Coast is an icon of Makassar city, however increase activity of surrounding communities causes a decrease in the water quality. Meiofauna is an effective benthic organism used as an indicator of water quality.
Muh Sri Yusal, Muh Aris Marfai, Suwarno Hadisusanto, Nurul Khakhim   +3 more
doaj   +1 more source

Taking machine learning with a grain of sand: Sediment Analysis Neural‐network Data‐engine (SAND‐e) reveals sedimentological differences between turbid and clear‐water reefs

The Depositional Record, Volume 12, Issue 1, February 2026.
Using machine learning, researchers can count and crudely identify sand grains from coral reefs automatically. This will allow us to generate larger datasets to answer sedimentological questions. Abstract Sediment is an important facet of sand cay reefs as it is responsible for reef accretion and island formation, with shifts in the proportions of ...
G. William M. Harrison, Teigan G. Collins, Allia Rosedy, Nadia Santodomingo, Willem Renema, Kenneth G. Johnson   +5 more
wiley   +1 more source

Desenho amostral em meiofauna marinha

Vértices, 2010
As atividades humanas litorâneas sobre a biota marinha têm levado a discussões sobre protocolos de amostragem adequados, de forma que os vários estudos possam ser comparados.
Luciana Monteiro Lage, Ricardo Coutinho
doaj   +1 more source

A critical role of heterotrophic bacteria in early diagenesis of carbonates through exopolymer degradation and calcium release

The Depositional Record, Volume 12, Issue 1, February 2026.
Exopolymeric substances (EPS) produced in the photic zone and surface sediments sequester calcium. Below the sediment surface, heterotrophic bacteria degrade EPS, releasing calcium resulting in carbonate precipitation. This process, which continues for millennia deep in the core, is an important sink for atmospheric carbon dioxide.
Pieter T. Visscher, Pierre Boussagol, Raphael Bourillot, Christophe Dupraz, Olivier Braissant, Alan W. Decho, Brendan P. Burns, Richard Allen White III, Paxton Tomko, Emmanuelle Vennin   +9 more
wiley   +1 more source

Cryptofauna Associated With the Epilithic Algal Matrix on Subtropical Brazilian Reefs

Austral Ecology, Volume 51, Issue 2, February 2026.
ABSTRACT The epilithic algal matrix (EAM) plays a significant role in the benthic cover of reefs worldwide. In Brazil, the EAM accounts for a substantial proportion of the benthos, and its associated fauna contributes to the majority of the reef's metazoan biodiversity and is an important link into the trophic chain, connecting the production performed
Gabriel Soares Figueiredo Barros, Quenia Nascimento Lyrio, Cesar Augusto Marcelino Mendes Cordeiro, Carlos Eduardo Leite Ferreira   +3 more
wiley   +1 more source

Environmental Gradients, Not Geographic Boundaries, Structure Meiofaunal Communities in Siberian Seas

Environmental DNA
Meiofauna (all invertebrates smaller than 1 mm) are not only sensitive to environmental changes but also contribute significantly to nutrient cycling and energy transfer to higher trophic levels.
Adele Maciute, Elias Broman, Francisco J. A. Nascimento, Tommaso Tesi, Evgeniy Yakushev, Birgit Wild, Elena Kirillova, Igor Semiletov, Örjan Gustafsson, Stefano Bonaglia   +9 more
doaj   +1 more source

Improved taxonomic and gene sampling advance the knowledge of deep relationships within Macrodasyida (Gastrotricha)

Cladistics, Volume 42, Issue 1, Page 25-45, February 2026.
Abstract Advances in Macrodasyida (Gastrotricha) phylogenetics, fuelled by new species discoveries and molecular data, are reshaping taxonomic classifications. Molecular analyses suggest polyphyly in Cephalodasyidae and Macrodasyidae, yet insufficient sampling continues to obscure precise relationships.
Agata Cesaretti, Anush Kosakyan, Francesco Saponi, M. Antonio Todaro   +3 more
wiley   +1 more source

Ichnological insights into deoxygenation across the Cenomanian–Turonian Boundary Oceanic Anoxic Event 2 in the northern extent of Western Interior Seaway (west‐central Alberta)

Sedimentology, Volume 73, Issue 2, Page 355-390, February 2026.
ABSTRACT In‐depth ichnological and sedimentological analyses of the Cenomanian–Turonian boundary Oceanic Anoxic Event (OAE2) from the Western Interior Seaway of west‐central Alberta reveal a persistent physico‐chemically stressed setting. The interval is characterised by a dominantly diminutive and diminished ichnological assemblage, with familiar ...
Sara K. Biddle, Murray K. Gingras
wiley   +1 more source

Meiofauna Community in Soft Sediments at TAG and Snake Pit Hydrothermal Vent Fields

Frontiers in Marine Science, 2020
The risk assessment of seafloor massive sulfide (SMS) mining on meiobenthic organisms, specifically on soft-sediment meiofauna, is impeded by a lack of knowledge on the biology and ecology of these communities.
Adriana Spedicato, Nuria Sánchez, Lucie Pastor, Lenaick Menot, Daniela Zeppilli   +4 more
doaj   +1 more source