| Area | Arroyo Corte Madera |
| Topic | Habitat: Embeddedness at Pool Tails for Arroyo Corte Madera Tribs 2003 |
| Caption: The chart shows embeddedness, or the degree to which spawning gravels are buried, according to stream surveys in tributaries to Arroyo Corte Madera del Presidio in 2003. Embeddedness of 25% or less is considered suitable for salmonid spawning (CDFG 1998). All of the tributaries contained a large proportion of embeddedness less than 50%. Spawning gravel labeled unsuitable for salmonid spawning is shown in blue. These visual estimates involve some subjectivity, and are not as rigorous in describing spawning and incubation habitat conditions, as are quantitative bulk gravel samples. See Info Links for more information. | |
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