Results 51 to 60 of about 215,212 (170)
Developmental role of dpp in the gastropod shell plate and co-option of the dpp signaling pathway in the evolution of the operculum [PDF]
, 2012 The operculum is a novel structure in gastropod molluscs. Because the operculum shows notable similarities to the shell plate, we asked whether there were an evolutionary link between these two secretory organs.
Hashimoto Naoki +3 more
core +1 more source
Investigating development, incubation and dietary effects in egg and veliger larvae of Littorina littorea (Linnaeus, 1758) [PDF]
, 2022 Vanlig Strandsnegl (Littorina littorea) er en lite utnyttet delikatesse i Norge, men arten sankes, eksporteres og konsumeres i mange europeiske land. Denne studien har undersøkt noen av de tidligere ukjente faktorene som påvirker de tidlige livsstadiene ...
Lillebjerka, Tora
core
Generalized torsion orders of generalized torsion elements [PDF]
arXiv, 2023 A non-trivial element of a group is a generalized torsion element if some products of its conjugates is the identity. The minimum number of such conjugates is called a generalized torsion order. We provide several restrictions for generalized torsion orders by using $G$-invariant norm and Alexander polynomials.
arxiv
Association between shell morphology of micro-land snails (genus Plectostoma) and their predator’s predatory behaviour [PDF]
, 2014 Predator–prey interactions are among the main ecological interactions that shape the diversity of biological form. In many cases, the evolution of the mollusc shell form is presumably driven by predation.
Alcock +48 more
core +1 more source
MICROMORPHOLOGY AND GENE EXPRESSION IN MUSCLE AND SHELL DEVELOPMENT OF THE MOLLUSCA [PDF]
, 2001 This work comprises detailed studies by scanning electron microscopy (SEM), transmission electron microscopy (TEM), fluorescence staining combined with confocal laser scanning microscopy (CLSM), as well as serial sectioning analyses and reconstruction ...
Wanninger, Andreas
core
Macrofaunal contributions to benthic nutrient fluxes revealed by radium disequilibrium
Limnology and Oceanography, EarlyView.Abstract The benthic flux of nutrients underpins marine food webs, influences conditions for life in the oceans, and contributes to climatic feedback. Estimates of these fluxes' contributions to macro‐ and micronutrient cycles are, however, highly variable, generating significant uncertainty in biogeochemical models.
Isabelle J. Cooper +2 more
wiley +1 more source
HELIX: Data-driven characterization of Brazilian land snails [PDF]
arXiv, 2021 Decision-support systems benefit from hidden patterns extracted from digital information. In the specific domain of gastropod characterization, morphometrical measurements support biologists in the identification of land snail specimens. Although snails can be easily identified by their excretory and reproductive systems, the after-death mollusk body ...
arxiv
The Development of Haliotis tuberculata, with Special Reference to Organogenesis during Torsion
, 1937 Investigation of the development of Haliotis tuberculata , Linnaeus, was undertaken as a natural sequel to an examination of the bionomics and anatomy of Haliotis (Crofts 1929, p. 159).
Doris R. Crofts
semanticscholar +1 more source
The Anatomical Record, Volume 307, Issue 12, Page 3653-3684, December 2024.Abstract Acynodon adriaticus, a small eusuchian from the Late Cretaceous of Italy, is known for its well‐preserved cranial and postcranial material. Despite its excellent preservation, many details remain hidden due to the physical overlap between the elements and matrix obliteration.
Marco Muscioni +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 25, Issue 10, October 2024.Abstract Active and relic marine methane‐seep sites are widely distributed globally and are distinguished by distinctive geology, biogeochemistry, and ecosystems. The discovery of methane‐seep sites in the Krishna‐Godavari (K‐G) basin has created exciting new opportunities for methane‐seep research in the Bay of Bengal.
S. P. K. Pillutla +7 more
wiley +1 more source