Impact of Cyclones and Floods on Seagrass Habitats

Bandeira, Salomão; Amoné-Mabuto, Manuela; Chitará-Nhandimo, Sádia; Scarlet, Maria Perpétua J.; Rafael, José

doi:10.1007/978-3-030-74303-1_18

Cited by 5 publications

(8 citation statements)

References 15 publications

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“…The localized disappearance of community species within intertidal areas in Mozambique has already been reported, with the bivalves Macoma litoralis and Anadara antiquata no longer found due to land reclamation within Maputo bathing areas [37].…”

Section: Resource Use and Depletionmentioning

confidence: 78%

“…The degradation of seagrasses leads to the depreciation of resources that are dependent on them; therefore, seagrass restoration as a way to restore fisheries is a scientifically viable option [37]. This study, together with the previous studies carried out in the study areas, paved the way for seagrass restoration [35,49] and documentation towards seagrass management [50].…”

Section: Resource Use and Depletionmentioning

confidence: 79%

“…Table 1. Brief summary of seagrass status and associated risks at the sites (adapted from [37]). Seagrass-meadow-associated invertebrates were assessed using standard protocols [38,39] as also summarized within the IPSN (Indo-pacific Seagrass Network) protocol (https:// indopacificseagrass.network/research-protocols/, accessed on 9 January 2020).…”

Section: Bairro Dos Pescadoresmentioning

confidence: 99%

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Seagrass Invertebrate Fisheries, Their Value Chains and the Role of LMMAs in Sustainability of the Coastal Communities—Case of Southern Mozambique

et al. 2022

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Invertebrate gleaning within seagrass meadows is a common activity across eastern African communities that depend on fisheries for their livelihoods. Based on a case study of two contrasting sites, Maputo Bay (MB) and Inhambane Bay (IB),this study documents, both qualitatively and quantitatively, the gleaning activity, its value chain and stakeholders,payingparticular attention to the recently created Locally Managed Marine Areas (LMMAs) within IB, boasting creativity in seagrass invertebrate fishery management.Twenty-four common edible species were identified for MB, and 15 for IB; nearly all gleaners were women and children. Our estimates indicate that about 7.7 and 7.6 tons of invertebrates are collected in the peak catch weeks (spring low tides) in MB and IB, respectively. Resources are caught and sold at local markets, food fairs (for IB only), and restaurants,as well as for direct household consumption. One thousand one hundred and seventy two(1172) hectares of LMMAs (corresponding to nearly 0.05 of IB) of fisheries management, together with existing community and other stakeholder engagement and intervention on value chains, are at the center of tangible invertebrate fishery management.

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Section: Resource Use and Depletionmentioning

confidence: 78%

Section: Resource Use and Depletionmentioning

confidence: 79%

Section: Bairro Dos Pescadoresmentioning

confidence: 99%

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Seagrass Invertebrate Fisheries, Their Value Chains and the Role of LMMAs in Sustainability of the Coastal Communities—Case of Southern Mozambique

et al. 2022

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“…Gleaning, as a small-scale fishery practice or collection of benthic invertebrates or other animals from the substrate of the intertidal area during the spring tide period, has been an important and popular fishing method in intertidal areas from prehistoric times to the present day using none or simple tools such as sticks, stones or gardening hoes [6][7][8][9]. High concentration of fishing and destructive fisheries practices in Mozambique caused the reduction of resources along the coast of the country [10], and gleaning to harvest intertidal associated bivalves caused the loss of over 50% of seagrass coverage in Maputo Bay, Bairro dos Pescadores [11]. Notwithstanding, the causes of the ongoing decline of seagrass in Bairro dos Pescadores remain outside of management control.…”

Section: Introductionmentioning

confidence: 99%

Intertidal Gleaning Exclusion as a Trigger for Seagrass Species and Fauna Recovery and Passive Seagrass Rehabilitation

Fanoro,

Scarlet,

Bandeira

2023

Diversity

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This study evaluates gleaning exclusion as an approach for the rehabilitation of seagrass ecosystems and as an option for important intertidal resource management that contributes to the social well-being of communities. The monitoring of seagrass plant and invertebrate recovery after the implementation of gleaning exclusion was conducted over 50 plots of 5 m × 5 m each, which were settled in the seagrass meadow of NW Maputo Bay, Mozambique. The exclusion experiment was designed to compensate for the important loss of seagrass in the area due to gleaning activity characterized mainly by digging and revolving sediments to collect mostly clams. Results showed that, in general, seagrass plant shoot density started having significant positive recovery after five months: three months for Halophila ovalis, five months for Halodule uninvervis, and much more time (>six months) for the IUCN Red List endangered Zostera capensis. For invertebrates, 194 individual invertebrates were collected belonging to 13 species. Solen cylindraceus was the most dominant edible invertebrate species in the local community, and Dosinia hepatica for non-edible species. The result of the experiment showed a positive recovery in the abundance and diversity of invertebrates. The results support previous findings, suggesting that the installation of a no-take zone can enhance the health of an ecosystem. Therefore, to limit the violation and conflicts of the no-take zones, the creation of alternative activities for harvesters and the flexibility of restrictions are vital. Further investigation should be considered to obtain an effective management of the zones, including documentation of species, gleaning practices, and an effective restoration of seagrass meadows.

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“…Zostera capensis, which is categorized as a vulnerable species under the IUCN Red List (Short et al 2011), is also known to occur in Maputo Bay where about 800 ha have been reported (Bandeira 2014). In Mozambique, primary drivers causing seagrass decline include physical disturbance such as floods, dredging, sedimentation and clam collection (Bandeira et al 2014, 2020, 2021, Amone‐Mabuto 2017). Of these, the decline due to gleaning is a particularly significant threat to seagrass meadows in the WIO region, where bivalve harvesting is a common activity (Nordlund 2012, Chitará‐Nhandimo et al 2022).…”

Section: Introductionmentioning

confidence: 99%

A field experiment exploring disturbance‐and‐recovery, and restoration methodology of Zostera capensis to support its role as a coastal protector

Amoné-Mabuto

Hollander

Lugendo

et al. 2022

Nordic Journal of Botany

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Seagrass degradation in the western Indian Ocean is of serious concerns with numerous severe climate events that has impacted Mozambique, as well as South Africa in recent time, highlighting the need for re‐establishing these critical habitats. The following paper present a field experiment from Mozambique concerning disturbance‐and‐recovery effects of Zostera capensis, a highly impacted seagrass species in the region. We undertook trials mimicking disturbance of meadows in terms of digging to collect clams, a common practice in Maputo Bay. Our results indicated that once such anthropogenic impacts are halted, Z. capensis meadows restore itself after 12 months of impact exclusion. In addition, we also conducted seagrass restoration experiment using a manual method, the so‐called plug method which, demonstrated to improve the survival rate with 75%, which has large implications for seagrass transplantation projects that are both time consuming and financially costly. The results from this study will further guide the appropriate management to build the best practice in seagrasses meadows restoration and awareness. It is clear from this study that a combination of both impact exclusions and active restoration is bound for best results of seagrass management actions.

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Impact of Cyclones and Floods on Seagrass Habitats

Cited by 5 publications

References 15 publications

Seagrass Invertebrate Fisheries, Their Value Chains and the Role of LMMAs in Sustainability of the Coastal Communities—Case of Southern Mozambique

Seagrass Invertebrate Fisheries, Their Value Chains and the Role of LMMAs in Sustainability of the Coastal Communities—Case of Southern Mozambique

Intertidal Gleaning Exclusion as a Trigger for Seagrass Species and Fauna Recovery and Passive Seagrass Rehabilitation

A field experiment exploring disturbance‐and‐recovery, and restoration methodology of Zostera capensis to support its role as a coastal protector

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