Sample sites.

Sample sites.</p

Field data and model input data (picture).

(RAR)</p

S1 Data -

(RAR)</p

Three kinds of seaweed statistical parameters (GBDT).

Three kinds of seaweed statistical parameters (GBDT).</p

Original spectral data.

(RAR)</p

Sampling station setting.

(RAR)</p

Texture feature parameters (red band).

Texture feature parameters (red band).</p

Model input data (wet weight).

(RAR)</p

Spectral curves of seaweed at different growth stages.

a. Ulva australis, b. Sargassum thunbergii, c. Sargassum fusiforme. The spectral curves of different colors represent the average of each growth stage.</p

Three kinds of seaweed statistical parameters (RF).

Three kinds of seaweed statistical parameters (RF).</p