Results 11 to 20 of about 700 (176)

ParaHox Genes Revisited: From Gut Patterning to Integrated Axial and Neural Organization in Rotifera. [PDF]

J Exp Zool B Mol Dev Evol
In rotifers, ParaHox genes show a dispersed genomic organization, with Xlox absent across gnathiferans. Exclusive neuronal expression of Gsx and Cdx reveals that ancestral ParaHox genes coordinated neural and epithelial development beyond gut patterning, suggesting an integrated role in early bilaterian body plan organization.
Fröbius AC, Mark Welch DB, Herlyn H.
europepmc   +2 more sources

eDNA Metabarcoding Reveals Microbial Community Composition in Tropical Mangrove Forests in Makassar, Indonesia. [PDF]

Ecol Evol
This study used environmental DNA (eDNA) metabarcoding with 18S rRNA markers to assess microbial diversity in the Lantebung Mangrove Forest, Makassar, Indonesia. It identified 103 microbial species across five kingdoms, revealing higher species richness in open‐water areas (P1) and greater individual abundance under mangrove canopy (P2).
Larekeng SH, Basyuni M, Aznawi AA, Irmawati I, Iswanto I, Saldy M, Mubaraq A, Slamet B, Sumarga E, Arifanti VB, Ali HM.   +10 more
europepmc   +2 more sources

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

Marine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol, Maria Grazia Mazzocchi, Isabella D'Ambra   +2 more
wiley   +1 more source

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

Boletim 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, Marco Valério Jansen Cutrim, Xiomara Franchesca Garcia Diaz, Paula Nepomuceno Campos, Glauber David Almeida Palheta, Nuno Filipe Alves Correia de Melo   +5 more
doaj   +1 more source

Tables and diagrams on trophology of walleye pollock in the western Bering Sea

Известия ТИНРО, 2016
State of zooplankton, as the food base of walleye pollock, in the western Bering Sea in the early 21st century is considered. Warm period of the 2001-2006 changed to cold period of the 2007-2013 and, after the transitional year of 2014, a new warm period
Anatoly F. Volkov
doaj   +1 more source

Macroid Formation in <i>Salmacina stellaebayensis</i> n. sp. From Mauritania's Baie de l'Étoile With New Insights on Mitogenome Evolution in Serpulidae (Annelida). [PDF]

Ecol Evol
We describe Salmacina stellaebayensis n. sp. from Mauritania's Baie de l'Étoile and provide the first complete mitochondrial genome for the genus Salmacina. The species forms distinctive macroid colonies in Cymodocea nodosa seagrass meadows, offering new insights into serpulid life history and habitat specialization.
Cremer HA, Kupriyanova E, Knorrn AH, Moctar SMM, Freiwald A, Tilic E.   +5 more
europepmc   +2 more sources

A new look at the ventral nerve centre of Sagitta: implications for the phylogenetic position of Chaetognatha (arrow worms) and the evolution of the bilaterian nervous system

Frontiers in Zoology, 2007
Background The Chaetognatha (arrow worms) are a group of marine carnivores whose phylogenetic relationships are still vigorously debated. Molecular studies have as yet failed to come up with a stable hypothesis on their phylogenetic position.
Müller Carsten HG, Harzsch Steffen
doaj   +1 more source

Distribution, abundance and biomass of Chaetognaths off São Sebastião region, Brazil in February 1994

Brazilian Journal of Oceanography, 2002
The distribution, abundance, biomass, population structure and feeding habits of chaetognaths collected off São Sebastião region, Brazil, in February 1994 are described. Bongo nets were hauled obliquely to collect zooplankton samples. Forty-three samples
Tsui-Hua Liang, Luz Amelia Vega-Perez
doaj   +1 more source

Seasonal chaetognath abundance and distribution in a tropical estuary (Southeastern, Brazil)

Brazilian Journal of Oceanography, 2005
This study focuses on the seasonal variation of the chaetognath species in the Vitória Bay/Passage Channel estuarine system, Espírito Santo, Brazil, in terms of their abundance and distribution.
Luiz Loureiro Fernandes, José Mauro Sterza, Keyla de Oliveira Neves   +2 more
doaj   +1 more source

Comparative Multi-Marker Environmental DNA Metabarcoding of Marine Metazoan Communities: Water vs. Sediment. [PDF]

Mol Ecol Resour
ABSTRACT This study investigates the metazoan biodiversity in the Southern Adriatic Sea using environmental DNA (eDNA) metabarcoding. Sediment and adjacent water samples were collected from three sites (one pristine, two impacted by human activities) at three distances from the coast across two seasons.
Tagliabue A, Furfaro G, Pallavicini A, Martino F, Zane L, Sattin E, Valle G, Piraino S, Turon X.   +8 more
europepmc   +2 more sources