Changes in Proximate and Fatty Acids of the Eggs During Embryo Development in the Blue Swimming Crab, &lt;I&gt;Portunus pelagicus&lt;/I&gt; (Linnaeus 1758) at Lasongko Bay, Southeast Sulawesi, Indonesia

Hamid, Abdul; Wardiatno, Yusli; Batu, Djamar Tumpal Floranthus Lumban; Riani, Etty

doi:10.17485/ijst/2015/v8i6/62337

Cited by 5 publications

(2 citation statements)

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“…In general, the fatty acid content in early-staged eggs (stages I and II) or intermediate-staged eggs (stages II and III) did not differ significantly [36,37,46,48,49,59]. However, as vitellogenesis progressed, the amounts of almost all important fatty acids decreased considerably [23,24,35,37,51,53]. In other species, there was a continuous decrease in the fatty acid contents throughout embryo development [29,47,60].…”

Section: Discussionmentioning

confidence: 89%

“…In contrast, MUFAs were relatively more prevalent than PUFAs in the eggs of the crab species Uca rapax [48], Armases cinereum [49], Eriocheir sinensis [25], and Shinkaia crosnieri [22], and the shrimp species Chorismus antarcticus, Notocrangon antarcticus, and Nematocarcinus lanceopes [50]. SFA-dominated profiles have been observed for the eggs of the crabs Uca annulipes [51], Uca inversa, Uca urvillei, Uca chlorophthalmus, Uca vocans [35], and Portunus pelagicus [52,53]. A balanced SFA/MUFA/PUFA ratio has been observed in the blue crab Callinectes sapidus [36].…”

Section: Discussionmentioning

confidence: 95%

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Fatty Acids in the Eggs of Red King Crabs from the Barents Sea

Dvoretsky,

Bichkaeva,

Baranova

et al. 2024

Animals

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The red king crab, Paralithodes camtschaticus, was introduced into the Barents Sea where, after a period of 30 years of adaptation, it has established a new population. This population has been commercially exploited over the past two decades, supporting profitable fisheries in both Russia and Norway. Biochemical studies aimed at assessing fatty acid profiles have been conducted, focusing primarily on the edible parts of red king crabs. Only recently have by-products been included in this research. Capture of female red king crabs is prohibited in Russia but is allowed in Norway. The fatty acids of the egg masses carried by these females have not yet been studied. To fill this knowledge gap, we assayed the fatty acid composition of eggs using gas–liquid chromatography. Our results showed a predominance of polyunsaturated fatty acids, while the concentrations of saturated and monounsaturated fatty acids were similar. Multivariate comparisons showed no significant differences in fatty acid profiles in terms of egg developmental stage (nauplius vs. metanauplius), habitat conditions (soft vs. hard bottoms), female size class, or number of autotomized limbs. However, individual comparisons showed some differences in fatty acids, the most important being the lower content of docosahexaenoic acid in eggs at the metanauplius stage compared to eggs at the nauplius stage, which is likely due to its essential role in the development of red king crab embryos. The total fatty acid content (53.94 mg g−1) was 2–87 times higher in eggs than in other red king crab tissues, confirming the critical role that fatty acids play in maintaining physiological processes during vitellogenesis. The high content of essential fatty acids and an optimal omega-3-to-omega-6 ratio (4.9) suggest that red king crab eggs are a good product for a healthy diet and a valuable source for extracting essential fatty acids.

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