Results 1 to 10 of about 3,582 (192)

Unveiling pelagic-benthic coupling associated with the biological carbon pump in the Fram Strait (Arctic Ocean) [PDF]

open access: yesNature Communications
Settling aggregates transport organic matter from the ocean surface to the deep sea and seafloor. Though plankton communities impact carbon export, how specific organisms and their interactions affect export efficiency is unknown.
Simon Ramondenc   +7 more
doaj   +2 more sources

Diversity, seasonal abundance, and environmental drivers of chaetognath populations in North Inlet Estuary, South Carolina, USA [PDF]

open access: yesEcology and Evolution, 2023
Chaetognaths (Phylum: Chaetognatha) are one of the most abundant phyla of zooplankton worldwide and play an important role in marine trophic interactions.
Sarah E. Stone, Joshua P. Stone
doaj   +2 more sources

Main characteristics of arrowworms in the Bering Sea (species composition, distribution, biomass, production)

open access: yesИзвестия ТИНРО, 2021
Zooplankton was sampled from the epipelagic layer (0–200 m) in the Bering Sea using Jedae net (mouth 0.1 m2, mesh size 0.168 mm) in 1986–2018. Arrowworms were the most numerous predators, represented with 3 species: Parasagitta elegans, Eukrohnia hamata,
К. M. Gorbatenko
doaj   +1 more source

Taxonomic reassessment of chaetognaths (Chaetognatha, Sagittoidea, Aphragmophora) from Korean waters [PDF]

open access: yesZooKeys, 2022
Since the first record of chaetognaths (arrow worms) reported from Korean waters by Molchanov in 1907, three families, 12 genera and 21 species have been additionally described.
Seohwi Choo, Man-Ki Jeong, Ho Young Soh
doaj   +3 more sources

Chaetognatha of the Namibian upwelling region: taxonomy, distribution and trophic position. [PDF]

open access: yesPLoS ONE, 2013
In October 2010, the vertical distribution, biodiversity and maturity stages of Chaetognatha species were investigated at four stations located off Walvis Bay, Namibia.
Karolina Bohata, Rolf Koppelmann
doaj   +1 more source

New group of the Early Palaeozoic conodont-like fossils [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
The paper is devoted to the Upper Cambrian and Tremadocian organophosphatic microfossils which were hitherto treated as conodonts and assigned mainly to the genera Coelocerodontus and Viirodus.
Hubert Szaniawski
doaj   +1 more source

Characterization of the zooplankton in the continental shelf of the Brazilian Equatorial Atlantic

open access: yesBoletim do Instituto de Pesca, 2023
The equatorial Atlantic is characterized by its high abundance of zooplankton. However, starting point studies concerning the species composition in the northern Brazilian continental shelf are still scarce.
Yago Bruno Silveira Nunes   +5 more
doaj   +1 more source

Evolution of Synonymous Codon Usage in the Mitogenomes of Certain Species of Bilaterian Lineage with Special Reference to Chaetognatha

open access: yesBioinformatics and Biology Insights, 2016
Chaetognatha is a minor phylum, comprising transparent marine invertebrates varying in size from 0.5 to 12 cm. The exact phylogenetic position of Chaetognatha in Metazoa has not been deciphered as some embryological characteristics place chaetognaths ...
Sudeesh Karumathil   +5 more
doaj   +2 more sources

Rotiferan Hox genes give new insights into the evolution of metazoan bodyplans [PDF]

open access: yes, 2017
The phylum Rotifera consists of minuscule, nonsegmented animals with a unique body plan and an unresolved phylogenetic position. The presence of pharyngeal articulated jaws supports an inclusion in Gnathifera nested in the Spiralia.
Fröbius, Andreas C., Funch, Peter
core   +1 more source

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