Every salmon is a stack of tissues that must agree under season, prey and human pressure.
Meters below repeat the six atlas scores as gauges; they are relative marks, not laboratory certificates.
Systems
Support and integument
An adipose-finned salmonid with a kype in breeding males. Osmoregulatory gills and kidney switch twice -- downriver as smolts, upriver as adults.
Feeding apparatus
Marine fat built on plankton and forage fish, then spent on the upstream fast. Semelparous Pacific bodies become the forest fertiliser. The feeding kit sets the ecological-role score relative to the other 23 types.
Respiration and circulation
Gas exchange and blood flow are tuned to the salmon energy budget -- dive, hover, sprint or bulk browse -- not to a generic vertebrate template.
Senses and neural control
Natal-stream olfaction is the famous sense. Polarised light and magnetite help the ocean leg.
Reproduction and ontogeny
Replacement rate is the hidden resilience number. Dams, warm water, and a hatchery that smells like a factory. Climate-warmed rivers close the adult run before the gravel is reached.
Thermoregulation and salt/water
Climate and osmoregulation bound where a salmon can close its daily budget. Field sites in the English-speaking world still measure that envelope first.
Relative meters
Hotspots
Primary weapon or tool
The bill, teeth, trunk, pouch or talon that field guides name first -- and that trade or conflict usually targets.
Energy store
Fat, cache, crop or bamboo hours that decide whether a season closes.
Natal or breeding site
A redd, eyrie, den, anemone or ice lair -- often a single-point risk (Izumi, Natron, Gir).
Sensory organ
Natal-stream olfaction is the famous sense. Polarised light and magnetite help the ocean leg.
Human interface
Hunt, tourism, film or quota -- the surface where salmon biology meets English-language law.
Tissues & materials
Keratin and integument
Feathers, fur, baleen or skin plates -- tissues, not metals. Moult and wear are the maintenance cycle.
Bone and cartilage
Load paths for stoop, lunge, knuckle-walk or hover. Marrow and pneumatic bone differ by family.
Muscle and tendon
The expensive tissue that speed and intelligence scores only hint at.
Fat, oil and glycogen
Stores that migration, fast and lactation spend. A market for those stores (oil, ivory, fin) is a historical threat.
Keep exploring
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Overall 36