کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2842690 1571091 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amino and fatty acid dynamics of octopus (Octopus vulgaris) early life stages under ocean warming
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Amino and fatty acid dynamics of octopus (Octopus vulgaris) early life stages under ocean warming
چکیده انگلیسی


• There was a great decrease in amino acid content throughout embryogenesis.
• Temperature did not affect fatty acid composition or levels.
• Temperature was responsible for the decrease in many amino acid levels.

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Thermal Biology - Volume 55, January 2016, Pages 30–38
نویسندگان
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