Results 81 to 90 of about 6,474 (222)
The phylogenetic position of ctenophores and the origin(s) of nervous systems [PDF]
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
Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen+4 more
wiley +1 more source
Parallel evolution of gravity sensing
Omnipresent gravity affects all living organisms; it was a vital factor in the past and the current bottleneck for future space exploration. However, little is known about the evolution of gravity sensing and the comparative biology of gravity reception.
Daria Y. Romanova+2 more
doaj +1 more source
Is the Presence of Jellyfish Problematic or Beneficial?
Jellyfish are a diverse group of animals. The group consists of Chordata, Ctenophora and, mainly, Cnidaria. Jellyfish are often thought to be harmful, but few can cause fatality in humans.
Udomsak DARUMAS
doaj +1 more source
The Ribosomal Operon Database: A Full‐Length rDNA Operon Database Derived From Genome Assemblies
ABSTRACT Current rDNA reference sequence databases are tailored towards shorter DNA markers, such as parts of the 16/18S marker or the internally transcribed spacer (ITS) region. However, due to advances in long‐read DNA sequencing technologies, longer stretches of the rDNA operon are increasingly used in environmental sequencing studies to increase ...
Anders K. Krabberød+4 more
wiley +1 more source
Placozoa are small disc-shaped animals representing one of the early branching metazoan lineages with only a dozen cell types, fast effector reactions, and complex behaviors.
Daria Y. Romanova+3 more
doaj +1 more source
Species Distribution Models for Mesopelagic Mesozooplankton Community
ABSTRACT Aim We aimed to enhance our understanding of the distribution of mesopelagic mesozooplankton (MM) using species distribution models, assess the performance of various modelling techniques, identify key environmental predictors for MM distribution and compute their habitat suitability indices.
Yulia Egorova+3 more
wiley +1 more source
State of Mnemiopsis leidyi (Ctenophora: Lobata) and mesozooplankton in Iranian waters of the Caspian Sea during 2008 in comparison with previous surveys [PDF]
Mnemiopsis leidyi which was accidentally introduced into the Caspian Sea in 1999 and since then has colonized extensively. The horizontal distribution of M.
Babaei, H.+4 more
core
Deepwater Sharks at Their Northern Limits—Distribution, Diet and Trophic Relations
ABSTRACT Deepwater areas and continental slope regions south and west off Iceland are characterized by a relatively high species diversity and abundance of sharks that likely play a critical ecological role within this ecosystem. The study investigates trophic ecology of the sharks employing stomach content analysis and stable isotope analysis of ...
Jón Sólmundsson+2 more
wiley +1 more source
Abstract In 2017, a new regulatory management system, the traffic light system (TLS), was implemented to estimate the effects of salmon lice from Norwegian salmon aquaculture on marine survival of wild Atlantic salmon and forms the basis of aquaculture capacity regulation.
Solveig van Nes+2 more
wiley +1 more source