Results 1 to 10 of about 5,335 (233)
Unfolding the ventral nerve center of chaetognaths [PDF]
Neural DevelopmentBackground Chaetognaths are a clade of marine worm-like invertebrates with a heavily debated phylogenetic position. Their nervous system superficially resembles the protostome type, however, knowledge regarding the molecular processes involved in ...
June F. Ordoñez, Tim Wollesen
doaj +6 more sources
Taxonomic reassessment of chaetognaths (Chaetognatha, Sagittoidea, Aphragmophora) from Korean waters [PDF]
ZooKeys, 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 +5 more sources
Methodology optimization to quantify microplastic presence in planktonic copepods, chaetognaths and fish larvae [PDF]
MethodsX, 2023 Two of the groups most impacted by microplastics (MPs) are zooplankton and fish larvae, either through MPs ingestion or absorption. Although there has been an increase of studies focusing on MPs ingestion by these organisms, there is still no ...
S.M. Rodrigues +4 more
doaj +3 more sources
Simulation of encounter rates between zooplankton organisms and microplastics in a tropical estuary. [PDF]
PLoS ONE, 2023 Coastal estuarine systems may hold a large number of microplastic particles, which predators often mistake for prey. This study estimated the encounter rates between microplastics (alleged prey) and zooplankton having different feeding modes, trophic ...
Laura Sanvicente-Añorve +4 more
doaj +2 more sources
Diversity, seasonal abundance, and environmental drivers of chaetognath populations in North Inlet Estuary, South Carolina, USA [PDF]
Ecology 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
Journal of Marine Science and Engineering, 2020 Information on the in situ diet of juvenile chaetognaths is critical for understanding the population recruitment of chaetognaths and their functional roles in marine food web.
Lingli Wang +5 more
doaj +2 more sources
Terrestrial, Atmospheric and Oceanic Sciences, 2020 The biomass and estimated production, feeding rate of chaetognaths were studied in the Yellow Sea. Sagitta crassa, Sagitta enflata, Sagitta bedoti, and Sagitta nagae were found during the study period, and S. crassa and S. nagae were the dominant species.
Yuanzi Huo +8 more
doaj +2 more sources
Anterior-posterior patterning in the chaetognath Spadella cephaloptera informs bilaterian nervous system and tail evolution [PDF]
Communications BiologyThe formation of the bilaterian anterior–posterior axis relies on deeply conserved patterning systems, yet how these evolved remains incompletely understood.
June F. Ordoñez, Tim Wollesen
doaj +2 more sources
ParasitologiaThe prevalence of endoparasites associated with chaetognath abundance in the coastal waters of the Mexican Central Pacific was studied fortnightly from November 2010 to December 2011.
Viridiana Plascencia-Palomera +5 more
doaj +2 more sources
A giant stem-group chaetognath. [PDF]
Sci AdvChaetognaths, with their characteristic grasping spines, are the oldest known pelagic predators, found in the lowest Cambrian (Terreneuvian). Here, we describe a large stem chaetognath, Timorebestia koprii gen. et sp.
Park TS +12 more
europepmc +6 more sources