The inner blubber layer, containing high lipid proportions of longer chain SFAs and PUFAs, seems to reflect the fatty acid composition of the diet of the seals more than the outer blubber layer.

Oct 19, 2023 · The energy stored in blubber includes both proteins (mostly collagen) and fats (mostly lipids). The ability of blubber to use these stored nutrients means marine mammals are …

Blubber varies across species in the ratio of collagen to lipid, and can even vary within the same animal. Blubber depth can range from a few millimeters in newborn pinniped pups to 50 cm …

To answer long-standing questions regarding how (or if) energy and lipid utilization adapted to aquatic stressors, we quantified variations in gene transcripts critical to lipid metabolism …

May 1, 2021 · We were able to detect 817 molecular lipid species in blubber of killer whales (Orcinus orca) and humpback whales (Megaptera novaeangliae). The profiles were largely …

Aug 8, 2022 · An inverse relationship between total lipid content in blubber and heat flow (Worthy and Edwards 1990) suggests that lipid-rich deeper layers of blubber reduce thermal …

Jan 1, 2009 · Depletion of lipid from blubber stores will decrease the insulative capacity of the tissue and may seriously compromise an individual, especially if nutritionally stressed. Thus, …

Phocid seals rely on lipids in the form of a blubber layer as insulation and lipids as energy sources in blubber and muscle. The amount and lipid composition of blubber and other lipid stores vary …

Dec 1, 2022 · The aim of the current pilot study was to explore the lipid profiles in blubber of several marine mammal species from Australia in conjunction with the patterns of some of the …

The adipose tissue contains lipids that have a relatively low thermal conductivity. This extra layer does not conduct heat from the whale’s body, therefore not losing it to the surrounding waters. …

Ex vivo studies have enhanced our understanding of the role of blubber by investigating the physical (e.g. adipocyte morphology, thickness, thermal conductivity [81–85]) and biochemical …

Dec 15, 2012 · Blubber, the specialized hypodermis of cetaceans, provides thermal insulation through the quantity and quality of lipids it contains. Quality refers to percent lipid content; …

Jan 26, 2021 · We investigated lipid and FA variability among inner and outer blubber layers, three body sites, four study years, and lactation status of adult female Pacific walruses …

We documented an extended lipidomic fingerprint in two cetacean species present in northern Norway during wintertime. We were able to detect 817 molecular lipid species in blubber of …

Jul 24, 2015 · The ability to retain the heat is affected by the lipid and water concentration in the blubber. The lipid can increase the heat retaining ability, while the water concentration is used …

Oct 28, 2023 · Blubber is primarily composed of triglycerides, which are fatty acids attached to a glycerol molecule. It is a concentrated source of energy, providing 9 calories per gram, which …

Jan 1, 2018 · In newborn phocid seals, blubber can represent <6% of body mass and contain only 20% lipid; this rapidly changes during a brief (~4–28-day) lactation period, such that the …

Oct 20, 2023 · Blubber is a specialized adipose tissue found in marine mammals, rich in fats and omega-3 fatty acids. While not a common food source for humans, its consumption by …