1 – Dynamics of the Integument

TL;DR: Field studies indicate that low Ca concentrations limit the distribution and success of Ca-demanding freshwater crustaceans in soft-water localities, and a long-lasting depletion of Ca caused by reversed acidification could thus be detrimental to such species.

TL;DR: Although the calcium and phosphorus content of the hepatopancreas and the carapace responded to dietary supplementation, there was no clear correlation of tissue mineralization to shrimp growth.

TL;DR: In this article, the authors tested the capacity to digest starch and to metabolise glucose at different stages of the moulting cycle of the Litopenaeus vannamei.

TL;DR: This paper examined the relationship between species assemblages and measured environmental variables using multivariate techniques and found that the differences in cladoceran assemblage were related to physical and chemical variables, such as sulphate (SO42−), calcium (Ca2+), pH, maximum lake depth (Zmax), and dissolved organic carbon (DOC).

TL;DR: The structure of α-chitin has been determined by X-ray diffraction, based on the intensity data from deproteinized lobster tendon Least-squares refinement shows that adjacent chains have alternating sense (i are antiparallel) In addition, there is a statistical distribution of side-chain orientations, such that all the hydroxyl groups form hydrogen bonds as discussed by the authors.

TL;DR: It is shown that resilin is a structure protein in which the primary chains show little or no tendency to form secondary structures; they are bound together in a uniform three-dimensional network (the tertiary structure) with no potential limits as to size.