SEAGRASS, ENHALUS ACOROIDES, THALASSIA HEMPRICHII, PERCENT COVER, ECOLOGICAL STATUS
Seagrass is an advanced, higher-level plant that lives and grows immersed in the marine environment. Seagrass beds are a stretch of the ecosystem that covers a coastal area or shallow sea with a depth of fewer than 5 metres and can be formed from one (monospecific) or more (mixed) seagrass specie...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/55721 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Seagrass is an advanced, higher-level plant that lives and grows immersed in
the marine environment. Seagrass beds are a stretch of the ecosystem that covers a
coastal area or shallow sea with a depth of fewer than 5 metres and can be formed
from one (monospecific) or more (mixed) seagrass species, which ecologically act as
primary producers, biota habitats, wave absorbers, sediment traps, and nutrient traps.
The last monitoring of the Papagarang Island seagrass ecosystem in Komodo
National Park was carried out in 2003. This study aims to (1) examine the current
condition of seagrass coverage on the Papagarang Island and compare it with
conditions in 2003; (2) compare the condition of seagrass cover near settlements
(Station 1) with those far from settlements (Station 2); and (3) determine the
ecological status of seagrass beds based on the Decree of the State Ministry for
Environment Number 200 of 2004. Data collection was carried out in January 2021
using the SeagrassWatch method. Through the research results, there are two species
of seagrass, namely Enhalus acoroides and Thalassia hemprichii. The type of
sediment found at Station 1 is coarse sand and coral fragments, while Station 2 is in
the form of fine sand and mud. The average seagrass coverage in January 2021
decreased by 2.9% compared to July 2003. The mean height of the canopy at Station
1 and Station 2 was 26.7 cm and 62.9 cm respectively. The average algae cover of the
substrate at Station 1 was 21.3% and Station 2 at 5.9%. The average epiphytic algae
coverage at Station 1 was 27.7% and Station 2 at 31.4%. The seagrass coverage
condition of the two stations was significantly different (p-value <0.05) for all
variables, except for epiphytic algae coverage. The condition of seagrass coverage at
Station 2 on Papagarang Island is classified as healthy, while Station 1 is classified as
unhealthy. |
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