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From egg to hatchling: preferential retention of fatty acid biomarkers in young‐of‐the‐year Port Jackson sharks Heterodontus portusjacksoni
Author(s) -
Beckmann C. L.,
Mitchell J. G.,
Seuront L.,
Stone D.A.J.,
Huveneers C.
Publication year - 2014
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12451
Subject(s) - biology , yolk , hatchling , fatty acid , zoology , fishery , biochemistry , hatching
The muscle and liver fatty acid composition of young‐of‐the‐year ( YOY ) Port Jackson sharks Heterodontus portusjacksoni were investigated to determine the effects of a known dietary lipid source v . maternal input as demonstrated by egg yolk fatty acid profiles. Ten Heterodontus portusjacksoni egg yolks were collected in situ and compared with four hatched H. portusjacksoni fed a known diet in a controlled feeding experiment of 185 days. This study demonstrated that fatty acids are probably conservatively transferred from egg yolks to YOY H. portusjacksoni , while diet did not have a large effect on the fatty acid composition of the liver or muscle.