The benefit of one cannot replace the other: seagrass and mangrove ecosystems at Santa Fe, Bantayan Island

Mendoza, Ayana Rose R.; Patalinghug, Jenny Marie; Divinagracia, Joshua Ybañez

doi:10.1186/s41610-019-0114-7

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Meanwhile, in Jago-Jago, seagrass grows side by side with mangroves so that, there is a possibility of competition for a place to live and nutrition. This is supported by research by [27] which found that there is interaction and competition for a place to grow between seagrass and mangroves that live side by side.…”

Section: Figure 2 Percentage Of Cover and Density Of Enhalus Acoroidesmentioning

confidence: 84%

Estimation of carbon stock in seagrass communities in Central Tapanuli

Harahap

Khairunnisa

Susetya

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the carbon stock in seagrass communities in Central Tapanuli, North Sumatera, Indonesia. The research was conducted from July to August 2020 in the coastal areas of Hajoran and Jago Jago. The parameters measured in this study were density, coverage, biomass, carbon content, and carbon stock in seagrass. Biomass analysis and carbon measurement are divided into the top (above-ground biomass) and the bottom substrate (below-ground biomass). Carbon measurements are conducted using the loss on ignition (LOI) approach. The results showed that the seagrass ecosystem on the coast of Central Tapanuli Regency, which was covered by monospecies Enhalus acoroides, was in a less healthy condition with a cover percentage of 30.3-33.3% and a density of 59-67 shoots/m2. Above-ground and below-ground seagrass biomass reached 140.19-188.72 g/m2 and 368.13-423.69 g/m2 respectively, while carbon stock reached 70.57-94.86 g Corg/m2 and 18731-19603 g Corg/m2 and total standing stock range 257.87-290.90 g Corg/m2. The data obtained from this research can be used as a database to see the potential of seagrass beds as storage of CO2 and as an effort to mitigate and adapt to climate change.

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Section: Figure 2 Percentage Of Cover and Density Of Enhalus Acoroidesmentioning

confidence: 84%

Estimation of carbon stock in seagrass communities in Central Tapanuli

Harahap

Khairunnisa

Susetya

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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“…For the typhoon damage however, it may also be related to human activities because of the recent storm intensification with ongoing climate change. Another unique case we found as cause of decline are mangrove plantations, which suggests that improper restoration efforts without sound scientific knowledge can lead to deterioration of coastal ecosystems (Primavera and Esteban, 2008;Sharma et al, 2017;Mendoza et al, 2019).…”

Section: Temporal Changes In Seagrass Beds and Their Causesmentioning

confidence: 86%

Distribution, Temporal Change, and Conservation Status of Tropical Seagrass Beds in Southeast Asia: 2000–2020

et al. 2021

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Although Southeast Asia is a hotspot of global seagrass diversity, there are considerable information gaps in the distribution of seagrass beds. Broad-scale seagrass distribution has not been updated in the global seagrass database by UNEP-WCMC since 2000, although studies on seagrasses have been undertaken intensively in each region. Here we analyze the recent distribution of tropical seagrass beds, their temporal changes, causes of decline and conservation status in Southeast Asia (plus southern mainland China, Taiwan and Ryukyu Island of Japan) using data collected after 2000. Based on the 195 literature published since 2000, we identified 1,259 point data and 1,461 polygon data showing the distribution of seagrass beds. A large discrepancy was found in the seagrass bed distribution between our updated data and the UNEP-WCMC database, mostly due to inaccurate and low resolution location information in the latter. Temporal changes in seagrass bed area analyzed for 68 sites in nine countries/regions demonstrated that more than 60% of seagrass beds declined at an average rate of 10.9% year–1, whereas 20% of beds increased at an average rate of 8.1% year–1, leading to an overall average decline of 4.7% year–1. Various types of human-induced threats were reported as causes for the decline, including coastal development, fisheries/aquaculture, and natural factors such as typhoons and tsunamis. The percentage of seagrass beds covered with existing marine protected areas (MPAs) varied greatly among countries/regions, from less than 1% in Brunei Darussalam and Singapore to 100% in southern Japan. However, the degree of conservation regulation was not sufficient even in regions with higher MPA coverage. The percentage of seagrass beds within EBSAs (Ecologically and Biologically Significant Area determined by the Convention of Biological Diversity) was higher than that within MPAs because EBSAs cover a greater area than MPAs. Therefore, designating EBSAs as legally effective MPAs can greatly improve the conservation status of seagrass beds in Southeast Asia.

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“…Transect line (10 m) was laid perpendicularly from the seaward margin into the seagrass bed, mangrove forest, and NMS area. Three quadrats (0.35m×0.35m) were fixed, covering all the zones of seagrass and mangroves (Mendoza et al 2019). Onfauna and in-fauna (10×10×5cm) samples were collected from inside the quadrate and sieved using 0.4 mm mesh size sieve then put into a plastic bag.…”

Section: Collection Of Samplesmentioning

confidence: 99%

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

et al. 2020

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Abstract. Al-Asif A, Hamli H, Abu Hena MK, Idris MH, Gerusu GJ, Ismail JB, Karim NU. 2020. Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia. Biodiversitas 21: 4606-4615. Present study dealt with the on faunal and in faunal assemblage from seagrass bed, mangrove area, and adjacent non-mangrove and seagrass (NMS) in Punang-Sari estuary, Lawas, Sarawak, Malaysia. Samples were collected from June to July 2019 by using quadrates and handpicking from the outside the sampling area to know the real checklist of surface macrofauna in this area. A ten-meter transect line was settled in three habitat areas where sampling was performed by putting three quadrates (0.35m×0.35m). Epifauna and infauna samples were collected from inside the quadrate and sieved using 0.4 mm mesh size sieve. A total of 111 species of gastropod (87 species from 30 families), bivalve (18 species from 9 families), Polychaeta (2 species), echinoderms (1 species), and crustacean (3 species) were recorded during the study period. Seagrass meadows comprised most diverse and abundant faunal (50 species) assemblage followed by mangrove habitats (48 species), and NMS (20 species). The dendrogram revealed two significant habitats in the sampling site. PCA analysis revealed, seagrass habitat sheltered a higher number of species followed by mangrove and NMS area. Jaccard similarity index revealed seagrass and mangrove habitats (0.42) contains the highest similar species amongst all habitats compared to mangrove and non-seagrass-mangrove area (0.26). Out of total species recorded (101), only ten species were reported as least concern, and 2 species hold deficient data status, and the rest are not evaluated. Bio-assemblage in seagrass habitat was found rich compared to other habitats, which could be useful for future ecological investigation and marine ranching.

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The benefit of one cannot replace the other: seagrass and mangrove ecosystems at Santa Fe, Bantayan Island

Cited by 10 publications

References 17 publications

Estimation of carbon stock in seagrass communities in Central Tapanuli

Estimation of carbon stock in seagrass communities in Central Tapanuli

Distribution, Temporal Change, and Conservation Status of Tropical Seagrass Beds in Southeast Asia: 2000–2020

Benthic macrofaunal assemblage in seagrass-mangrove complex and adjacent ecosystems of Punang-Sari Estuary, Lawas, Sarawak, Malaysia

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