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Close-up of fish melanophores. Fish coloration is produced through specialized cells called chromatophores. The dermal chromatophore is a basic color unit in amphibians, reptiles, and fish which has three cell layers: "the xanthophore (contains carotenoid and pteridine pigments), the iridophore (reflects color structurally), and the melanophore (contains melanin)". [5]
Crab meat or crab marrow is the meat found within a crab, or more specifically in the leg of a crab. It is used in many cuisines around the world for its soft, delicate and sweet flavor. Crab meat is low in fat and provides approximately 340 kilojoules (82 kcal) of food energy per 85-gram (3 oz) serving.
Trout who swim the streams love to feed on land animals, aquatic life, and flies. [4] Most of their diet comes from macroinvertebrates, or animals that do not have a backbone like snails, worms, or insects. They also eat flies, and most people who try to use lures to fish trout mimic flies because they are one of trout's most fed on meals. [4 ...
The species has displayed notable negative phototaxis, meaning the organism prefers to avoid sunlight, [10] and changes location during the day and nighttime. [10] It eats small feather duster worms and other coral reef invertebrates. [9] This crab is commonly kept in reef aquariums to control bristle worm populations. [11]
For example, the bright yellow of an American goldfinch, the startling orange of a juvenile red-spotted newt, the deep red of a cardinal and the pink of a flamingo are all produced by carotenoid pigments synthesized by plants. In the case of the flamingo, the bird eats pink shrimps, which are themselves unable to synthesize carotenoids.
Many varieties of fish, particularly cold-water oily fish like salmon, are rich in omega-3 fatty acids, “healthy” fats that support heart, brain and eye health.
In freshwater the top of the trout is an olive color with brown and black spots, with the ventral side being tan to yellow. The sides have many orange and red spots ringed with a light blue. [10] Their average length is 60 cm, but they can grow up to 130 cm in length and weigh up to 20 kg under favourable habitat conditions.
Hemigrapsus oregonensis, on Orcas Island, Washington. This crab is an intertidal crab with wide-set eyes and no rostrum.Despite its name, body color can vary. Often, the crab's rectangular-shaped carapace is deep red or brown with light green spots, but it can also be grey-green, yellow-green, pale green or white with small blue/black spots, as well as have lighter colored legs with similar ...