Journal of Coastal Conservation最新文献

Mangrove forests serve various economic, social and environmental benefits and ecotourism in the mangrove forests is recognized as a form of nature tourism which contributes to the conservation of ecosystems and economic development. Our focus is on the sustainable development of mangrove forests and ecotourism of the mangrove forests of the Sundarbans. Modeling of mangrove forests and mangrove ecotourism of the Sunderbans for sustainable development is a formidable challenge. This research presents a system dynamics model of mangrove forests and ecotourism of the Sundarbans to address the different policy scenarios for sustainable development. The model has been simulated to address the issues of cutting cycle policy, mangrove plantation policy and the policy for capacity development and tourist promotion for conservation and future restoration of mangrove forests for sustainable ecosystem and economic development and the policy implications have also been addressed to aid policy planning and design for sustainable development of the mangrove ecosystem of the Sundarbans.

Mitigation, adaptation, environmental protection, and sustainable development on the land and related water bodies are being promoted in a fragmented way. Integrated Water Resources Management and Integrated Coastal Management have been presented as a way to face these problems. The Source-to-sea approach has recently emerged proposing a new water governance and management framework. This research aimed to understand the Source-to-sea approach and identify its relationships and convergences with the approaches of Integrated Water Resources Management and Integrated Coastal Management and answer the question of whether they are integrative, complementary, or competitive. Content analysis was used as part of the investigation method so that it was possible to identify the intentions and perceptions of the concepts, principles, and dimensions adopted by each approach. The classification of elements resulted in 8 categories. Based on Leopold’s matrix, we created a base matrix to analyze the relationships between the approaches. The S2S approach integrates and, at the same time, complements Integrated Water Resources Management and Integrated Coastal Management. For the eight categories, Source-to-sea was fully committed to 6 of them. Integrated Water Resources Management was fully committed to 5 of them. And Integrated Coastal Management was fully committed to only 3 of them. The Source-to-sea approach brings new elements, revitalizes some methods, and strengthens the governance and management structure of freshwater and marine water resources, enabling a new vision in the continuum where Integrated Water Resources Management and Integrated Coastal Management are part of the process within a new perspective.

This article establishes the significance of marine molluscs of India, existing and potential threats are discussed, and molluscan distribution in Indian states based on current information is examined. About 3370 molluscan species are known from marine habitats of India and the highest number of species from the east coast of India. Marine molluscs of India are facing threats because of various causes. The greatest threat to marine molluscs has been the loss and reduced quality of habitat caused by human-induced modifications and the capture of molluscs for the fishery. Species and habitat-based approaches to molluscan conservation are evaluated. The conservation measures taken by the Indian government are discussed.

In this study, we delve into the complex interplay between the Allee effect and a tri-trophic marine ecosystem of zooplankton, sardines, and sharks in Moroccan waters, aiming to contribute to the field of coastal conservation, planning, and management. Our investigation focuses on understanding the impact of the Allee effect on catches, profits, and fishing efforts within the context of bioeconomic models. By analyzing the positive aspects, boundaries, and equilibrium points, we examine how the Allee effect influences the fishing efforts and overall performance of fishermen, providing valuable insights for sustainable fishing practices. The research outcomes shed light on the intricate interplay among the Allee effect, economic variables, and the abundance of diverse species, thereby offering crucial guidance for effective coastal conservation, planning, and management strategies.

São Luís Island in Maranhão State, Brazil, has a vegetational mosaic where sandbanks with shrubs, small dunes, and mangroves are common. Due to its geography, the urbanization process in this area tends to form agglomerations that suffocate small rivers and streams. Based on a floristic survey of the family Malpighiaceae, we discuss the importance of taxonomic knowledge for the preservation of the flora of São Luís Island. We list 18 species of Malpighiaceae that occur in the area. Among them, only four have herbarium collections from the 21st century. Byrsonima intermedia and Heteropterys mathewsiana are new records for Maranhão State and Bunchosia apiculata is a new record for São Luís Island. Although they have not been formally assessed, most species are under threat, especially from disorderly urban growth and the unregulated discard of waste. Maintaining natural habitats and controlling threats might reveal relevant new findings about the diversity of Maranhão and contribute significantly to the preservation of the biodiversity on São Luís Island.

SWASH (Simulating WAves till SHore) is a non-hydrostatic numerical model used to investigate the reflection coefficient of three wavelike trapezoidal submerged breakwaters (Structure A, B, and C) in this study. The breakwater was configured in sections of crest and trough; Structure A has its crest and trough section on the sea-bed. Structure B was only a crest section placed on the sea-bed, while Structure C’s crest section is on the sea-bed with its trough section trenching into the sea-bed. Regular wave is propagated over the structures to examine their differences in reflecting wave energy. The result shows that Structure C of the three wavelike trapezoidal submerged breakwaters can effectively reflect more waves while covering less area on the sea-bed. The possibility of a dual peak on the resonant of the reflection coefficient is seen for all the three wavelike trapezoidal submerged breakwaters with a shift in their prominent peak along with the dual peak position. The variation of breakwater height and top widths directly affects the peak value of the reflection coefficient. However, the breakwater height will shift the positioning of the peak values occurrence.