René Hoffmann

4 Questions 11 Answers 0 Followers

Questions related from René Hoffmann

Calcium uptake in marine mollusks?

I am looking for articles dealing with the calcium uptake in marine mollusks such as cephalopods, bivalves or gastropods. Specifically, whether the Ca comes from sea water or from food...

28 April 2019 6,407 9 View

Looking for publications dealing with the chemical composition of sea urchin spines, any suggestions?

Hi, for an review I am looking for publications that deal with the elemental or stable isotope composition of sea urchin spines (any taxa is welcome). As a good starting point I have choosen...

01 August 2016 1,754 4 View

Does anyone know of a detailed study about the chemical composition of Recent coleoid hooks as well as fossil coleoid hooks (onychites)?

It is widely accepted that Recent coleoid hooks are composed of beta chitin and that fossil coleoid hooks might be composed of similar material. Anyway I couldn´t find a detailed study.

14 June 2015 2,739 3 View

Does anyone know about the possibility to measure stable oxygen isotopes from molluscan chitin?

Stable oxygen isotopes are often used for palaeoclimatic reconstructions. I was wondering if it is possible to use the oxygen isotopes from molluscan chitin to perform similar palaeoclimatic...

06 August 2013 7,998 13 View