Example Of Sustainable Management Research Articles

Relocation of Dredged Material from Marano and Grado Lagoon: An Example of Sustainable Management

The high degree of dynamism of coastal and lagoon morphodynamic processes often implies the need for dredging operations to maintain the navigability of the main waterways towards harbours or sites which have important tourist or economical value. In particular, within sheltered and shallow lagoons this phenomenon is continuous and involves large volumes of material that requires to be properly managed. The dredged materials can provide sediments for environmental enhancement and they can be used, as an example, to create or improve habitats, mudflats and salt marshes. Numerical model can be a valuable tool to investigate the morphological evolution of the disposals, especially in the medium term, with the aim of verifying the sediment stability and the bed level changes. The present paper shows an example of sustainable management of cohesive materials dredged from two channels of the Marano and Grado lagoon. The non-linear interactions between tidal currents and locally generated wind waves are reproduced by means of a coupled spectral-hydrodynamic model associated with a transport equation to compute sediment load concentration. The comparison of the results confirms the validity of the adopted procedure.

THE WINE SECTOR MANAGEMENT IN PORTUGAL: AN OVERVIEW ON ITS THREE-DIMENSIONAL SUSTAINABILITY

The paper scrutinizes wine sector sustainability management in Portugal, which is a traditional wine producer. In Portugal, wine is strategic to its agri-food industry. As the wine market faced changes in consumption and an increase in the quality of the wine offered, new green products (organic, biodynamic) appeared for market niches concerned with environmental and health issues, as well as new ways of communication through the Internet and social media. First, we discuss a global wine market that affects wine market in Portugal, and then we present the internal situation and tendencies, including some examples of sustainable management of this sector in the economic, societal, and ecological dimensions. In the present work, the perspective is essentially of an entire economic sector, since in the Portuguese wine market the Old-World model prevails. This situation comprises high market fragmentation, and strong power exercised by distribution and consumers; it also means that wine production is subject to strict national and common market regulations. However, we do not abandon the micro analysis at the level of the company’s relations with its stakeholders. The methodology adopted in this review is qualitative and it consists of critical analysis of the literature from diverse disciplines, but it also uses secondary sources, such as institutional and technical reports, databases, statistics, notes and media news.

Sustainable Management and Sustainable Development in Quran and Sunnah: إدارة الاستدامة والتنمية المستدامة في القرآن والسنة

The study aims to clarify that words and sentences in the Holy Quran and Sunnah are rich in examples of sustainable management and development principles and their respective applications. In addition, the study confirms to non- believers living in this modern civilized world (Muslims or non- Muslims) that Islam supports and reinforces the implementation of sustainable management and development. It also highlights that Islam is suitable for all Mankind, wherever, whenever, and however, all through the span of life on this earth. The results of this study confirms that the Holy Quran and Sunnah are very rich in their terminology including words, sentences and phrases of sustainable management and development; Also Implementation of sustainable management and development is compulsory in Islam. In conclusion, the study offers some recommendations to increase and enhance awareness about Sustainable management and development such as the importance of legalization (Issuing legislations) to implement sustainable management and development based on Quran and Sunnah; Furthermore Islamic countries should support civilized human nature research which spreads Islam’s respect and Kindness towards other communities،

Deep-water red coral from the island of Sardinia (north-western Mediterranean): a local example of sustainable management

Since 1979, red coral harvesting in Sardinia has been regulated by regional laws. The regulations, including a minimum take size of 10-mm basal diameter, were imposed to limit and control harvesting. Our study indicated that >75% of the red coral colonies harvested in 2007–08 in the north-western coast were above the legal minimum size for exploitation. Moreover, extensive surveys with remotely operated vehicles allowed us to document the real structure of wild populations. Large colonies (>10 mm) represented a big portion of the population (~38% of the total), suggesting that harvesting effort did not affect yet the maximum size of colonies. All these results seem to be confirmed by the application of the model of Beverton and Holt. This model shows that the fishery of red coral in Sardinia reaches its maximum yield at an age at first capture of 20 years, an age significantly lower than the average age of 30 years calculated for the colonies actually harvested in the Sardinian coast. Our data confirmed that the measures enacted in the Sardinian regulations provide for an adequate management of this resource and, in addition, can represent a guideline for other countries that still lack a valid management plan.

Overfishing: what everyone needs to know

Overfishing: what everyone needs to know

The eel fishery in Lough Neagh, Northern Ireland – an example of sustainable management?

Abstract Lough Neagh produces over 500 t of grown eel annually and employs 300 people fishing yellow and silver eel. Glass eel are transported upstream and stocked into the Lough. Since glass eel returns crashed in the 1980s, additional glass eel seed has been purchased from other fisheries. The fishery now faces ecological, social and economic pressures. Prices for the product have fallen; recruitment to the fishery has declined, and seed has decreased in availability and increased in price. Fishers are less inclined to take up the hard work required to make a living fishing eel and the fisher population is ageing. The European Commission has recognised the decline of eel and proposed emergency measures, which may further affect the viability of the fishery. The sustainability of the fishery is examined, based on the relationship between glass eel input and grown eel outputs over a period of 45 years, set against increasing environmental, socio‐economic, and natural resource pressures. Spawning escapement of silver eel is estimated by mark–recapture experiments.