Figure 2
From: Comparative histology of muscle in free ranging cetaceans: shallow versus deep diving species
Intracellular substrates stores.
(A) Intramyofiber glycogen. Adult male of pygmy sperm whale (Kogia breviceps). PAS stain, 100× magnification. (B) Intramyofiber glycogen. Neonate female of sperm whale (Physeter macrocephalus). PAS stain, 40× magnification. (C) Intramyofiber lipids were visualised as small droplets with a variable staining pattern ranging from olive green to black. Calf male of short-finned pilot whale (Globicephala macrorhynchus). Osmium tetroxide postfixation, 100× magnification. (D) Small fibres typically had a greater lipid concentration as revealed by OT. Adult female of Blainville’s beaked whale (Mesoplodon densirostris). Osmium tetroxide postfixation, 200× magnification.
