Baseline Assessment of Seagrass Communities of Lubang and Looc Islands, Occidental Mindoro, Philippines

Genito, Genibeth E.; Nabuab, Fenelyn M.; Acabado, Cristy S.; Albasin, Bella Sheila; Beldia, Pacifico D.

doi:10.5134/144638

Cited by 3 publications

(6 citation statements)

References 10 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…High algal cover denotes high nutrients caused by pollution that contributes to the increase in sea nutrient level (Fortes, et al, 2004). The seagrass condition in Maribojoc Bay is similar to that in Guimaras Island (Babaran and Ingles, 1996), Lubang Island (Genito et al, 2010), and the coastal areas of Iligan City (Orbita & Gumban, 2013). In the Philippines, data from 26 sites reported seagrass cover to be generally low, usually not exceeding 20%, indicating that most of the seagrass beds in these areas have sparse coverage (BINU, 2005).…”

Section: Cover Percentagementioning

confidence: 65%

“…Clim. 1(1) 12-19, 2022 in thriving without significant interference from the other seagrass species (Genito et al, 2010). In terms of relative abundance, Thalassia hemprichii had the highest across sampling stations (Figure 2; Table 2).…”

Section: Resultsmentioning

confidence: 97%

“…Seagrass species such as H. pinifolia, H. ovalis, and S. isoetifolium are able to inhabit relatively deeper waters by having low light requirements, and faster and continuous rhizome growth (Vermaat et al, 1995). Meanwhile, T. hemprichii and E. acoroides are indiscriminate species in relation to depth (Genito et al, 2010). Certainly, the growth and distribution of seagrasses are controlled by the physical, chemical, and biological properties of the environment they live in (Greve & Binzer, 2004;Borum et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Seagrass Diversity and Distribution in Maribojoc Bay, Bohol, Philippines

MASCARIŇAS

2022

Am. J. Environ. Clim.

View full text Add to dashboard Cite

Seagrasses are major parts of coastal and marine biodiversity. Unfortunately, these aquatic plants and their ecological values are virtually unknown to many Filipinos. This study assessed the seagrasses in Maribojoc Bay, particularly in the coastal areas of the three municipalities, namely Maribojoc, Dauis, Panglao, and the City of Tagbilaran. Ecological assessments were conducted to determine the composition, abundance, distribution, percent cover, diversity, dominance, and evenness of seagrass species. Eight sampling sites were surveyed from October to December 2020. Seven seagrass species were identified, with Thalassia hemprichii as the most abundant (52.79%). There was a significant difference (p>0.05) in seagrass species relative abundance. The Shannon diversity index implies low diversity (H’=1.40) of seagrass species. High dominance (2.98) and low evenness (0.72) were attributed to the high abundance of T. hemprichii in the seagrass beds. The seagrass coverage was characterized by patchy and continuous meadows, with percentage cover ranging from 17.45% (poor) – 60% (good). Maribojoc Bay had a seagrass percentage cover of 38.65%, which can be classified under “fair” conditions. Seagrass community structure implies sparse coverage and low diversity, probably due to the deterioration of once-continuous meadows. However, further studies concerning seagrass communities are recommended in order to implement rehabilitation program or improve current management in Maribojoc Bay.

show abstract

Section: Cover Percentagementioning

confidence: 65%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Seagrass Diversity and Distribution in Maribojoc Bay, Bohol, Philippines

MASCARIŇAS

2022

Am. J. Environ. Clim.

View full text Add to dashboard Cite

show abstract

“…However, only a few studies on its marine resources, even less so for seaweeds and seagrass (hereon referred to as marine macrophytes), have so far been carried out. Genito et al (2009) reported eight seagrass species, including the dominant Thalassia hemprichii (Ehrenberg) Ascherson and Cymodocea rotundata Ascherson & Schweinfurth in Lubang and Looc Islands in Occidental Mindoro, with seagrass communities in these areas being threatened by slash-and-burn farming. VinceCruz-Abeledo et al (2019) identified and compared seaweed species in Calatagan Bay, Batangas from 1985 to 2019 to link the possible effect of warming coastal waters with seaweed biodiversity change.…”

Section: Introductionmentioning

confidence: 99%

Marine macrophyte composition during summer, southwest and northeast monsoons in Verde Island, Batangas City, Batangas, Philippines

2021

Philippine Journal of Systematic Biology

View full text Add to dashboard Cite

Verde Island Passage is the world’s center of the center of marine shore fish biodiversity, located in southwestern Luzon Island in the Philippines. The passage is named after Verde Island, which is located at its middle. Although the island is located within a key biodiversity area, studies on its marine macrophyte biodiversity are scant. The present study was conducted to determine the composition, distribution, and dominance of marine macrophytes, specifically seaweeds and seagrass, during the northeast monsoon, summer, and southwest monsoon in four coastal areas in Verde Island using the line transect-quadrat method. Results revealed 63 macrophyte species, of which 92% were seaweeds and 8% were seagrass. The majority of the seaweeds were green (41%), followed by red (35%) and brown (16%) seaweeds. In most sites, the brown seaweed Padina sp. was dominant during summer and cover decreased during both monsoons. The green seaweed Neomeris annulata was present in all sites and seasons. The differences in cover across sites may be due to substratum type and topography where a relatively wider intertidal zone with different substratum such as rocky and sandy to muddy provides complex habitat promoting higher macrophyte cover. Temporal differences in marine macrophyte composition were more pronounced in macroalgae-dominated sites than in the seagrass-dominated site. Several important seaweeds that could be studied as bioindicators were recorded, such as Padina sp., which registered high cover especially in sites near populated areas and backyard pig pens. Ulva spp., which are known to form green tide blooms, and Caulerpa verticillata were also noted and should be monitored. Some red seaweeds with potential for cultivation were observed (i.e., Halymenia durvillei and Portieria hornemannii). Claudea sp., an uncommon red seaweed with limited distribution in the Philippines, was recorded and needs verification. This study is the first extensive marine macrophyte assessment at the heart of the Verde Island Passage. KEYWORDS: biodiversity, bioindicator, eutrophication, microbenthic algae, seagrass, Verde Island Passage

show abstract

“…Despite the valuable functions and services of marine macrophytes in the marine ecosystem, biodiversity studies on marine macrophytes in the VIP are limited -some dated more than a decade ago or are spatially limited (Roleda et al 2000;Genito et al 2009;Saco et al 2020). Marine macrophytes, including macroalgae and seagrass, occupy the base of the marine food web as primary producers.…”

mentioning

confidence: 99%

Macrophyte Diversity and Conservation Values of the Verde Island Passage, Philippines

Rula¹,

Ramos-Danila²,

Valera³

et al. 2022

Philipp J Sci

View full text Add to dashboard Cite

The diversity and distribution of marine macrophytes – including seaweeds and seagrasses – in the Verde Island Passage (VIP), Philippines, was assessed covering nine sites across four provinces (Batangas, Marinduque, Occidental Mindoro, and Oriental Mindoro). Presence-absence data were compared to those of other sites within the VIP collected in earlier studies. Data from the VIP were then compared to sites with similar environmental and geographical features in other parts of the Philippines. A total of 116 macroalgal species and nine seagrass species were recorded from the VIP. This macroalgal richness represents approximately 12% of the reported macroalgae, and the number of seagrass species represents almost half of the known species in the country, suggesting that VIP supports a high diversity of marine macrophytes. Data analyses showed significant clustering of sites within the VIP. Some of the neighboring sites with similar environmental conditions also clustered together. The separation of clusters with sites outside the VIP may, in part, be explained by differences in local environmental conditions such as types of substratum, water depth, and current patterns (water motion). The diversity and uniqueness of marine macrophytes in the VIP highlight the importance of the ecosystem services and functions that these organisms provide. The role of various abiotic and biotic factors in driving variations in macroalgal diversity in the passage needs to be further verified with increased sampling efforts to obtain a more comprehensive understanding of the conservation value of the VIP.

show abstract

Baseline Assessment of Seagrass Communities of Lubang and Looc Islands, Occidental Mindoro, Philippines

Cited by 3 publications

References 10 publications

Seagrass Diversity and Distribution in Maribojoc Bay, Bohol, Philippines

Seagrass Diversity and Distribution in Maribojoc Bay, Bohol, Philippines

Marine macrophyte composition during summer, southwest and northeast monsoons in Verde Island, Batangas City, Batangas, Philippines

Macrophyte Diversity and Conservation Values of the Verde Island Passage, Philippines

Contact Info

Product

Resources

About