seagrass restoration, Zostera marina, Cymodocea nodosa, Zostera noltii, gut transit time, feeding rate, Gastrointestinal Transit, Animals, Feces - chemistry, Nutritive Value, Zosteraceae - chemistry, Herbivory, Perciformes - physiology, Portugal, Diet - veterinary
Seawater - analysis, Water Purification - methods, Waste disposal, Fluid - methods