Results 31 to 40 of about 5,335 (233)
Scientia Marina, 2009 Six chaetognath species were determined, all for the first time, in the inner waters between Reloncaví Fjord and Boca del Guafo, Chile. Sagitta tasmanica (85.3%) and Eukrohnia hamata (5.8%) were dominant.
Francisco Villenas +2 more
doaj +1 more source
Current Biology, 2019 Amiskwia sagittiformis Walcott 1911 is an iconic soft-bodied taxon from the Burgess Shale [1-3]. It was originally interpreted as a chaetognath [1], but it was later interpreted as a pelagic nemertean [2] or considered of uncertain affinity [3].
J. Vinther, L. Parry
semanticscholar +1 more source
Ciencias Marinas, 2005 Oceanographic conditions in the Pacific waters off Baja California are described for the period 2002–2003. Anomalies in the temperature-salinity relationships were observed from October 2002 to April 2003, with a clear contribution of low salinity and ...
Reginaldo Durazo +5 more
doaj +3 more sources
Biomass and production of net zooplankton in the Bering Sea
Известия ТИНРО, 2021 Total biomass and production are evaluated for taxonomic groups of zooplankton sampled with Juday net (mesh size 0.168 mm) from the 0-200 m layer in the Bering Sea in 1986-2018. The annual mean stock of zooplankton is assessed as 245.1 .
K. M. Gorbatenko
doaj +1 more source
Feeding and vertical migration of the chaetognath Sagitta friderici (Ritter Zahony, 1911) in the southern Benguela during spring 1987, with notes on seasonal variability of feeding ecology [PDF]
, 1994 The feeding biology and the vertical migration of Sagitta friderici were examined over 24 h at two stations in the southern Benguela during spring (October) 1987.
Gibbons, Mark J., Stuart, V.
core +1 more source
Chaetognatha, Spadellidae, Paraspadella nana Owre, 1963: new occurrence from the southwest Atlantic Ocean [PDF]
Check List, 2010 Chaetognaths are composed by six families and among them Spadellidae is strictly benthic. This study reports the first occurrence of Paraspadella nana Owre, 1963 in the coastal zone located in the northern region of Espírito Santo state (19°51’12” S, 40 ...
Michele Arruda +2 more
doaj +3 more sources
Sub-frontal niches of plankton communities driven by transport and trophic interactions at ocean fronts [PDF]
Biogeosciences, 2023 Observations and theory have suggested that ocean fronts are ecological hotspots, associated with higher diversity and biomass across many trophic levels. The hypothesis that these hotspots are driven by frontal nutrient injections is seemingly supported
I. Mangolte +3 more
doaj +1 more source
Frontiers in Marine Science, 2021 The abundance and distribution of plastic debris at the sea surface shows considerable variability over different spatial scales. Some of the oceanographic processes at small (<1 km) and submeso (1–10 km) scales manifest themselves as slicks at the ...
Camila Gallardo +15 more
doaj +1 more source
Phylogeny: The Continuing Classificatory Conundrum of Chaetognaths [PDF]
Current Biology, 2006 The phylogenetic conundrum posed by the Chaetognatha, a cryptic phylum consisting largely of planktonic predators, is the subject of two short papers in this issue of Current Biology. These analyses go some way towards defining the phylogenetic position of the chaetognaths, which possess features apparently spanning the protostome/deuterostome divide.
Ball, Eldon, Miller, David J.
openaire +3 more sources
Distribution of siphonophores in the Northwest Pacific Ocean and links to environmental conditions
Frontiers in Marine Science, 2023 Despite their abundance in marine ecosystems, studies on siphonophores are limited. In this study, 26 species of siphonophores in the Northwest Pacific Ocean were identified during multiple cruises of the R/V ISABU from 2018–2020, and various factors ...
Nayeon Park +5 more
doaj +1 more source