Diversity, cover, shoot density, and distribution of seagrasses in the coastal areas of Gingoog City, Misamis Oriental, Philippines
Jhun Rheil H. Molina | Michael Jeriel Bersaldo
Discipline: environmental sciences
Abstract:
Seagrass is a vital part of the coastal environment because it offers refuge, food,
and protection for a variety of animals. Despite its ecological and economic importance,
seagrass meadows are under threat globally due to natural and human-caused activities.
This study aims to establish baseline data on seagrass diversity, composition, cover, shoot
density and distribution in Gingoog City, Misamis Oriental that would serve as a useful
reference for future initiatives in management and conservation measures. A total of
six species of seagrasses were identified in two sampling stations namely: Thalassia
hemprichii, Halophila ovalis, Enhalus acoroides, Halodule pinifolia, Halodule uninervis,
and Syringodium isoetifolium. These two sampling stations exhibited a mixed stand of
seagrass community. The result of diversity indices showed that barangay Lunao was
more diverse than barangay San Juan (H' = 0.99). Shoot density and distribution of seagrass
showed preferences in different regions of the seagrass beds where Thalassia hemprichii
species was widely distributed and dominated in Barangay Lunao while Halodule pinifolia
has some restrictions in its distribution with high shoot density in the high intertidal
region of the seagrass of Barangay San Juan. This high density of seagrass especially on
Halodule pinifolia in a disturbed area is important in the coastal ecosystem because it
maintains the seagrass diversity, actively stabilizes sediment, improves water quality, and
supports a vast number of the marine organisms in this disturbed area of
the coastal water of barangay San Juan.
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