Effects of Epiphytes and Depth on Seagrass Spectral Profiles
Case Study of Gulf St. Vincent, South Australia
Bibliographic Data
| ID | 15512949 |
|---|---|
| Authors | Charnsmorn Hwang (National Cheng Kung University, corresponding author), Chih‐Hua Chang (0000-0002-9681-8522, National Cheng Kung University, corresponding author), Michael Burch (0000-0001-9762-7042, The University of Adelaide), Michael D Burch (The University of Adelaide), Milena Fernandes (0000-0002-6024-0765, Flinders University), Tim Kildea (South Australian Water Corporation) |
| Year | 2019 |
| Volume | 16 |
| Issue | 15 |
| Pages | 2701-2701 |
| Publication date | 2019-07-29 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph16152701 |
| PMID | 31362358 |
| OpenAlex | W2964843877 |
| Language | EN |
| References cited | 51 |
Seagrasses are a crucial indicator species of coastal marine ecosystems that provide substratum, shelter, and food for epiphytic algae, invertebrates, and fishes. More accurate mapping of seagrasses is essential for their survival as a long-lasting natural resource. Before reflectance spectra could properly be used as remote sensing endmembers, factors that may obscure the detection of reflectance signals must be assessed. The objectives in this study are to determine the influence of (1) epiphytes, (2) water depth, and (3) seagrass genus on the detection of reflectance spectral signals. The results show that epiphytes significantly dampen bottom-type reflectance throughout most of the visible light spectrum, excluding 670-679 nm; the depth does influence reflectance, with the detection of deeper seagrasses being easier, and as the depth increases, only Heterozostera increase in the exact "red edge" wavelength at which there is a rapid change in the near-infrared (NIR) spectrum. These findings helped improve the detection of seagrass endmembers during remote sensing, thereby helping protect the natural resource of seagrasses
Algae · Biology · Ecosystem · Epiphyte · Invertebrate · Reflectivity · Remote sensing · Seagrass · Spectral signature · Coral and Marine Ecosystems Studies · Environmental Science · Marine and coastal plant biology · Marine Biology and Ecology Research · Ecology · Geology · Oceanography
| Citation velocity | historical |
|---|---|
| Highly cited | No |