Results 41 to 50 of about 779 (167)

Analysis of the Structure and Functioning of the Chudao Oyster Reef Ecosystem in Sanggou Bay, China [PDF]

open access: yesEcol Evol
The study focuses on the Chudao oyster reef ecosystem in Sanggou Bay, China. By investigating the biodiversity, food web structure, and energy flow, the study aims to provide a basis for further exploring the role of oyster reef in maintaining marine ecological environment. ABSTRACT The Chudao oyster reef in Sanggou Bay, China represents a rare case of
Shi Y   +8 more
europepmc   +2 more sources

Transplants in annelids, nemerteans and planarians: a tool for embryology, immunology, endocrinology and regeneration research [PDF]

open access: yesInvertebrate Survival Journal, 2015
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

First records of Hubrechtella ijimai (Nemertea, Hubrechtiiformes) from Korea and China [PDF]

open access: yesCheck List, 2017
Hubrechtella ijimai is reported for the first time from South Korea (East China Sea) and China (Yellow Sea), about 260 and 930 km from the nearest locality in Japan.
Alexei V Chernyshev   +3 more
doaj   +3 more sources

Tetrodotoxins in Ribbon Worms Cephalothrix cf. simula and Kulikovia alborostrata from Peter the Great Bay, Sea of Japan

open access: yesToxins, 2022
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 and Its Analogues (TTXs) in the Food-Capture and Defense Organs of the Palaeonemertean Cephalothrix cf. simula

open access: yesToxins
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

Progress and Challenges in Phylogenomics and Genomics of Lophotrochozoa/Spiralia

open access: yesZoologica Scripta, Volume 55, Issue 4, Page 521-544, July 2026.
ABSTRACT Lophotrochozoa is one of the three major bilaterian groups comprising more than half of the bilaterian phyla. Lophotrochozoa includes among others Mollusca, Annelida, Platyhelminthes and Rotifera. Despite representing such a large proportion of animal diversity, they are historically understudied and genomic resources have been scarce. However,
Torsten H. Struck
wiley   +1 more source

An Overview of Hox Genes in Lophotrochozoa: Evolution and Functionality

open access: yesJournal of Developmental Biology, 2016
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

Ultrastructure and phylogenetic significance of spermatozoa in Nemertea

open access: yesZoomorphology, 2023
Abstract Sperm ultrastructure is frequently employed as a source for phylogenetic inference due to the ease of accessing spermatozoa. Despite being unicellular, sperm cells exhibit a relatively high number of diverse characters and character states.
Thomas Bartolomaeus   +3 more
openaire   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

A global assessment of abyssal–hadal vermiform lebensspuren: Functional consistency with depth

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Lebensspuren—sedimentary traces produced by benthic organisms—are widespread on deep‐sea floors but remain infrequently reported from abyssal (~ 3000–6000) and hadal (> 6000 m) environments. Here, we present the most comprehensive assessment of abyssal–hadal vermiform lebensspuren to date, spanning multiple ocean basins and reaching full‐ocean
Denise J. B. Swanborn   +2 more
wiley   +1 more source

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