Amino and fatty acid dynamics of octopus (Octopus vulgaris) early life stages under ocean warming.
J Therm Biol
; 55: 30-38, 2016 Jan.
Article
em En
| MEDLINE
| ID: mdl-26724195
ABSTRACT
The oceans are becoming warmer, and the higher temperatures are expected to have a major impact on marine life at different levels of biological organization, especially at the most vulnerable early life stages. Thus, we hypothesize that the future warmer scenarios (here +3 °C) will affect the biochemical composition (amino acid - AA, and fatty acid-FA) of octopod (Octopus vulgaris) embryos and recently-hatched pelagic paralarvae. The main essential amino acids found in octopus embryos were arginine, leucine and lysine; while aspartic and glutamic acids, and taurine were the main non-essential amino acids. Palmitic, eicosapentaenoic and docosahexaenoic acids were the main FAs found in octopus tissues. Relevant ontogenetic changes were observed, namely a steep decrease in the content of many AAs, and a selective retention of FAs, thus evidencing the protein-based metabolism of these cephalopods. Temperature per si did not elicit significant changes in the overall FA composition, but was responsible for a significant decrease in the content of several AAs, indicating increased embryonic consumption.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oceanos e Mares
/
Ácidos Graxos
/
Aminoácidos
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Temperatura Alta
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Octopodiformes
Limite:
Animals
Idioma:
En
Revista:
J Therm Biol
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
China