Dietary copper absorption and excretion in three semi-terrestrial grapsoid crabs with different levels of terrestrial adaptation

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dc.contributor.authorSa M.G.
dc.contributor.authorValenti W.C.
dc.contributor.authorZanotto F.P.
dc.date.accessioned2024-03-13T01:38:39Z
dc.date.available2024-03-13T01:38:39Z
dc.date.issued2008
dc.description.abstractThree species of phylogenetically related semi-terrestrial crabs (Superfamily Grapsoidea - Sesarma rectum, Goniopsis cruentata and Neohelice granulata (formerly: Chasmagnathus granulatus) with different degrees of terrestriality were studied to quantify the accumulation of copper (Cu) in hemolymph, gills, hepatopancreas and antennal gland, and its excretion through the faeces. These crabs were fed for 15 days practical diets containing 0 (A), 0.5 (B), 1.0 (C), and 1.5% (D) of added CuCl2 (corresponding to 0, 0.2, 0.5 and 0.7% of Cu2+, respectively). The amount of food ingested was directly proportional to the degree of terrestriality: S. rectum, the most terrestrial species, ate around 2-3 times more than the other crabs, whereas G. cruentata ate 1.5-2 times more than N. granulata, the least terrestrial. The amount of Cu excreted in the feces was proportional to Cu ingestion, and was 76.8% and 64.2% higher for Sesarma fed diet D compared to G. cruentata and N. granulata, respectively. Sesarma also displayed higher Cu concentration in the haemolymph, gills and antennal glands, but not in the hepatopancreas. A detoxifying mechanism followed by elimination was probably present at this last organ, preventing Cu accumulation. More terrestrial crabs, such as Sesarma, may accumulate more Cu in hemolymph and tissues, showing a correlation between metal accumulation and increased terrestriality. In this aspect, contaminated feed sources with Cu may have more impact in conservation of terrestrial crabs. © 2008 Elsevier Inc. All rights reserved.
dc.description.firstpage112
dc.description.issuenumber2
dc.description.lastpage116
dc.description.volume148
dc.identifier.doi10.1016/j.cbpc.2008.04.002
dc.identifier.issn1532-0456
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37581
dc.relation.ispartofComparative Biochemistry and Physiology - C Toxicology and Pharmacology
dc.rightsAcesso Restrito
dc.subject.otherlanguageBioaccumulation
dc.subject.otherlanguageBrachyura
dc.subject.otherlanguageNutrition
dc.subject.otherlanguageTerrestrial crabs
dc.titleDietary copper absorption and excretion in three semi-terrestrial grapsoid crabs with different levels of terrestrial adaptation
dc.typeArtigo
local.scopus.citations10
local.scopus.eid2-s2.0-46149095734
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=46149095734&origin=inward
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