Assessment of Mangrove Colonization of Aquaculture Ponds Through Satellite Image Analysis: Implications for Mangrove Management

Santos, Kriselda Anna delos; Avtar, Ram; Salmo, Severino G.; Fujii, Masahiko

doi:10.1007/978-981-19-2738-6_3

Cited by 3 publications

(1 citation statement)

References 46 publications

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“…Despite the goods and uses and the vital ecological functions they provide, mangroves are not being utilized in a sustainable manner only but destructive, as well. They have been and are still being converted into other land use such as ports, dams, agriculture lands, salt beds, industrial areas, and aquaculture ponds (Primavera 1997; Alongi 2002; Saenger 2002), the latter being the major driver of mangrove loss in the Philippines (delos Santos et al 2022). These conversions led to the loss of habitat to many of the mangrove‐associated fauna, most of which are essential sources of food and livelihood to the marginal fisherfolks.…”

Section: Introductionmentioning

confidence: 99%

The reestablishment of mangrove crabs (Scylla spp.) in an abandoned pond following natural mangrove recolonization

Lebata‐Ramos,

Solis,

Sibonga

2023

Restoration Ecology

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Scylla spp. are among the most economically important fisheries resources derived from the mangroves. However, the widespread mangrove destruction resulted in the loss of habitat, thus the dwindling capture production of many mangrove‐associated faunas. Although studies have shown that Scylla populations have reestablished in mangrove‐reforested areas, this study was the first in a mangrove‐recolonized abandoned pond in the Philippines. Six fishers conducted standardized fishing every spring tide of the month using cylindrical bamboo traps. All crabs caught from July 2010 to December 2011 were recorded for species, sex, sexual maturation of females, carapace width (CW), and body weight (BW). Total landings comprised 14,262 crabs weighing 1,743 kg; 79.67% Scylla olivacea, 20.18% S. tranquebarica, and 0.15% S. serrata. CW ranged 3.1–17.1 cm and BW 10–1,250 g, with the male crabs comprising 39.23–64.65% of the monthly landings and the females distributed as 19.88–45.01% immature, 0.50–16.57% mature, 0.45–16.02% gravid, and less than 0.10% spent crabs. Monthly landings ranged 254–1,231 pcs of crabs or 32.38–160.59 kg. The monthly mean catch per unit effort (CPUE), in terms of number, was 0.101 ± 0.01–0.456 ± 0.02 crab gear−1 day−1 (max = 1.13), while in terms of biomass, 12.86 ± 0.84–54.36 ± 3.16 g gear−1 day−1 (max = 112.50). Length–weight relationships of S. olivacea and S. tranquebarica are expressed as W = 0.224967L2.9864 (r2 = 94.08%, p < 0.001; n = 11,363) and W = 0.173409L3.1074 (r2 = 92.71%, p < 0.001; n = 2,878), respectively. This study revealed that Scylla spp. could reestablish in mangrove‐recolonized abandoned ponds.

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Section: Introductionmentioning

confidence: 99%

The reestablishment of mangrove crabs (Scylla spp.) in an abandoned pond following natural mangrove recolonization

Lebata‐Ramos,

Solis,

Sibonga

2023

Restoration Ecology

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Variations in litterfall dynamics, root biomass, and sediment accretion in restored and recolonized mangroves in Leyte, Philippines

Gerona-Daga,

MacKenzie,

Salmo III

2024

Estuarine, Coastal and Shelf Science

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A systematic review of mangrove restoration studies in Southeast Asia: Challenges and opportunities for the United Nation’s Decade on Ecosystem Restoration

Gerona-Daga

Salmo

2022

Front. Mar. Sci.

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Mangroves provide valuable ecological and socio-economic services. The importance of mangroves is particularly evident in Southeast (SE) Asia where the most extensive and diverse forests are found. To recover degraded mangroves, several SE Asian countries have implemented restoration programs. However, to date, there has been no systematic and quantitative synthesis on mangrove restoration studies in the region. Here, we provide a bibliometric-based analysis of mangrove restoration to provide understanding on trends and future directions needed to meet biodiversity and restoration targets in the region. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol, we analyzed 335 articles (249 articles with ecological attributes; 86 articles with social attributes) published until February 2022 from Scopus and Web of Science databases. Mangrove restoration studies with ecological and social attributes started around the early 1990s mostly from Indonesia, Thailand, Malaysia, Vietnam, and the Philippines. Majority of SE Asian countries have stronger collaboration to western countries rather than within the region. Reasons for restoration vary per country, but mostly were intended to rehabilitate damaged mangroves. Direct planting was the most common restoration method used while hydrological rehabilitation was less practiced. Research on ecological attributes were dominated by biodiversity-related studies focused on flora and fauna, and less on other ecosystem services (e.g., coastal protection, fisheries production, etc.). Studies with social attributes only accounted for <30% of the publications, mostly on topics related to ecological economics. Although mangrove restoration studies are apparent, some thematic restoration foci are needed. We propose priority research topics to help achieve the biodiversity and restoration targets by 2030.

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Assessment of Mangrove Colonization of Aquaculture Ponds Through Satellite Image Analysis: Implications for Mangrove Management

Cited by 3 publications

References 46 publications

The reestablishment of mangrove crabs (Scylla spp.) in an abandoned pond following natural mangrove recolonization

The reestablishment of mangrove crabs (Scylla spp.) in an abandoned pond following natural mangrove recolonization

Variations in litterfall dynamics, root biomass, and sediment accretion in restored and recolonized mangroves in Leyte, Philippines

A systematic review of mangrove restoration studies in Southeast Asia: Challenges and opportunities for the United Nation’s Decade on Ecosystem Restoration

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