Acid-Base Balance and Nitrogen Excretion in Invertebrates: by Dirk Weihrauch, Michael O'Donnell

By Dirk Weihrauch, Michael O'Donnell

This textbook offers a accomplished evaluate at the diversified innovations invertebrate animals have built for nitrogen excretion and upkeep of acid-base stability and summarizes the newest findings within the box, bought by way of cutting-edge technique. A vast variety of terrestrial, freshwater and marine invertebrate teams are coated, together with crustaceans, cephalopods, bugs and worms. furthermore the effect of present and destiny alterations in ocean acidification on marine invertebrates as a result of anthropogenic CO2 unlock may be analyzed. The e-book addresses graduate scholars and younger researchers attracted to common animal body structure, comparative body structure and marine/aquatic animal body structure. additionally it's a vital resource for researchers facing the results of accelerating pCO2 degrees on aquatic animals, of which the overwhelming majority are certainly invertebrates. All chapters are peer-reviewed.

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Extra info for Acid-Base Balance and Nitrogen Excretion in Invertebrates: Mechanisms and Strategies in Various Invertebrate Groups with Considerations of Challenges Caused by Ocean Acidification

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G−1) (Nakamura and Wright 2013) and probably reflect the greater temporal restrictions for volatilizing ammonia in terrestrial habitats. During bouts of ammonia gas excretion, glutamine and other N-sequestering amino acids are catabolised to release ammonia into the haemolymph. L−1 and creates a favourable gradient for its secretion into the pleon fluid and subsequent volatilization (Wieser 1972b; Wright and O’Donnell 1993; Wright et al. 1994, 1996; Wright and ­Peña-Peralta 2005). Potential ammonia production from glutamine catabolism in Armadillidium vulgare exceeds the measured excretion rates by a factor of 60 (Wright and Peña-Peralta 2005).

Academic Press, London, pp 163–213 Cole GA, Brown RJ (1967) The chemistry of artemia habitats. Ecology 48:858–861 Cruz MJ, Sourial MM, Treberg JR, Fehsenfeld S, Adlimoghaddam A, Weihrauch D (2013) Cutaneous nitrogen excretion in the African clawed frog Xenopus laevis: effects of high environmental ammonia (HEA). Aquat Toxicol 136–137:1–12 DeVries MC, Wolcott DL, Holliday CW (1994) High ammonia and low ph in the urine of the ghost crab, Ocypode quadrata. Biol Bull 186:342–348 Durand F, Regnault M (1998) Nitrogen metabolism of two portunid crabs, Carcinus maenas and Necora puber, during prolonged air exposure and subsequent recovery: a comparative study.

9 (n = 5) μmol. guanine g−1 tissue. 9 (n = 3) μmol. urate g−1 tissue) of the midgut gland of Coenobita brevimanus (Linton et al. 2005). It appears that purinotely and guanine metabolism has only evolved in Birgus latro and is not a synapomorphic character of the Coenobitidae. 3  otential Steps in the Evolution of Purinotely as Displayed P by the Terrestrial Crustacea As Birgus latro is the only known terrestrial crustacean that utilises purinotely as its primary mode of nitrogenous excretion, we can propose the following steps in the evolution of purinotely: 1.

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