Results 41 to 50 of about 4,001 (195)
The Geonemertes problem (Nemertea) [PDF]
A new genus of monostiliferous hoplonemerteans, Pantinonemertes gen. nov., provides evidence for the separate evolution of terrestrial nemerteans. The genus is established for two new species found in Australia, P. enalios sp. nov., an intertidal form, and P. winsori sp.
Janet Moore, Ray Gibson
openaire +1 more source
Transplants in annelids, nemerteans and planarians: a tool for embryology, immunology, endocrinology and regeneration research [PDF]
While transplantation procedures are often associated with biomedical applications, they are also an invaluable tool for basic research. This review focuses on how transplantation techniques have been used to understand the biology of three large ...
E E Zattara
doaj +1 more source
Tetrodotoxin, an extremely potent low-molecular-weight neurotoxin, and its analogues (TTXs) are widely distributed in aquatic and terrestrial ecosystems. Most investigations concerning TTXs have been conducted mainly on puffer fish, octopus, and mollusks,
Anna E. Vlasenko, Timur Yu. Magarlamov
doaj +1 more source
Tetrodotoxin (TTX), an extremely potent low-molecular-weight neurotoxin, is widespread among marine animals including ribbon worms (Nemertea). Previously, studies on the highly toxic palaeonemertean Cephalothrix cf.
Grigorii V. Malykin +2 more
doaj +1 more source
Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley +1 more source
An Overview of Hox Genes in Lophotrochozoa: Evolution and Functionality
Hox genes are regulators of animal embryonic development. Changes in the number and sequence of Hox genes as well as in their expression patterns have been related to the evolution of the body plan.
Marco Barucca +2 more
doaj +1 more source
Collecting and Culturing Lineus sanguineus to Study Nemertea WBR.
AbstractWhole-body regeneration, the ability to reconstruct complete individuals from small fragments, is rare among ribbon worms (phylum Nemertea) but present in the pilidiophoran species Lineus sanguineus. This species can regenerate complete individuals from a tiny midbody section, and even from a quarter of a piece, provided it retains a fragment ...
Zattara EE, Fernández-Alvarez FA.
europepmc +5 more sources
Ecology of a North Sea pockmark with an active methane seep [PDF]
: At a large North Sea pockmark, with active methane seeps, surface sediments were found to have higher insoluble sulphide concentrations than sedlments from the surrounding area.
Austen, MC +9 more
core +1 more source
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens +2 more
wiley +1 more source
Translocating Intact Assemblages to Degraded Sites to Accelerate Ecological Recovery
Estuarine ecosystems are threatened by anthropogenic pressures such as climate change, coastal development, and increased nutrient and sediment inputs. These pressures are deteriorating ecological health and threatening the functioning and services that estuarine ecosystems provide.
Orlando Lam‐Gordillo +3 more
wiley +1 more source

