Results 51 to 60 of about 6,623 (219)

Expression and phylogenetic analysis of the zic gene family in the evolution and development of metazoans [PDF]

open access: yes, 2010
Background zic genes are members of the gli/glis/nkl/zic super-family of C2H2 zinc finger (ZF) transcription factors. Homologs of the zic family have been implicated in patterning neural and mesodermal tissues in bilaterians ...
Michael J Layden   +4 more
core   +2 more sources

Synthetic pelagic biomass size spectra of the tropical and subtropical Atlantic

open access: yesEcosphere, Volume 17, Issue 5, May 2026.
Abstract Synthetic normalized biomass size spectra (NBSS) comprising non‐synoptically sampled phytoplankton, meso‐ and macrozooplankton, and micronekton including mesopelagic fishes were explored to analyze pelagic community structure in seven regions of the tropical and the subtropical Atlantic representative of different water bodies (NE Brazil shelf,
Heino O. Fock   +25 more
wiley   +1 more source

Vallicula multiformis Rankin, 1956 (Ctenophora, Platyctenida): first record from the Indian Ocean [PDF]

open access: yesCheck List, 2015
The benthic ctenophore Vallicula multiformis Rankin, 1956 is recorded for the first time in the Arabian Sea, from the Gulf of Kutch, west coast of India in March 2013.
Amruta Prasade   +3 more
doaj   +3 more sources

Feeding ecology of juvenile Pacific salmon (Oncorhynchus spp.) in a northeast Pacific fjord: diet, availability of zooplankton, selectivity for prey, and potential competition for prey resources [PDF]

open access: yes, 2010
We investigated the feeding ecology of juvenile salmon during the critical early life-history stage of transition from shallow to deep marine waters by sampling two stations (190 m and 60 m deep) in a northeast Pacific fjord (Dabob Bay, WA) between May ...
Bollens, Stephen M.   +4 more
core  

Carbon content of Mnemiopsis leidyi eggs and specific egg production rates in northern Europe [PDF]

open access: yes, 2014
The comb jelly Mnemiopsis leidyi is considered to be a successful invasive species, partly due to its high reproduction potential. However, due to the absence of direct carbon measurements of eggs, specific reproduction rates remain uncertain.
Colin, S. P.   +2 more
core   +1 more source

The IceShark, an effective method for sampling plankton under sea ice

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 4, April 2026.
Abstract Seasonal sea ice plays a crucial role in shaping coastal ecosystem dynamics throughout the circumpolar region. Of particular interest to oceanographers is the ice‐ocean interface which functions as a multidimensional habitat, supporting both sympagic algae and pelagic phytoplankton in the under‐ice surface waters.
Eleanor A. Barry   +4 more
wiley   +1 more source

New genomic data and analyses challenge the traditional vision of animal epithelium evolution

open access: yesBMC Genomics, 2018
Background The emergence of epithelia was the foundation of metazoan expansion. Epithelial tissues are a hallmark of metazoans deeply rooted in the evolution of their complex developmental morphogenesis processes.
Hassiba Belahbib   +6 more
doaj   +1 more source

First records of two lobate comb-jellies (Ctenophora) from the Pakistani coast [PDF]

open access: yesCheck List, 2015
The knowledge on the comb-jellies faunistics along the southern Asian coast is very scarce. For some countries such as Pakistan there are no previous formal records of ctenophores. This study is a first survey to the group diversity along Pakistani coast,
Shahnawaz Gul, Otto Oliveira
doaj   +3 more sources

Primer registro de Bolinopsis vitrea (Ctenophora: Tentaculata) para el golfo de México

open access: yesNovitates Caribaea, 2023
Se aportan los primeros datos de la distribución de Bolinopsis vitrea en el golfo de México. Diversos ejemplares de B. vitrea fueron registrados y fotografiados entre el 2015 al 2018 en los arrecifes Tuxpan, Enmedio, Tanhuijo y Lobos; ecosistemas que ...
Vicencio De la Cruz-Francisco   +2 more
doaj   +1 more source

The phylogenetic position of ctenophores and the origin(s) of nervous systems [PDF]

open access: yes, 2015
Ctenophores have traditionally been treated as eumetazoans, but some recent whole genome studies have revived the idea that they are, rather, the sister group to all other metazoans.
Jákely, Gáspár   +2 more
core   +3 more sources

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