Welcome to PAP/RAC Mediterranean Coastal Alert! This newsletter is regularly updated monthly. It contains abstracts of selected current articles and archives on various environmental themes, in particular those dealing with all aspects of coastal issues. The selection is made from the articles published in the leading international scientific journals. This newsletter is an excellent way of keeping you updated with coastal studies and processes.

In this issue Issue No. 31, 2011-07-15

Managing erosion-induced problems in NW Mediterranean urban beaches
(Abstract...)

Ten Years Assessment of ICZM Principles Applied at a Local Scale: Ria de Aveiro Case Study
(Abstract...)

Estimating coastal recession due to sea-level rise: beyond the Bruun rule
(Abstract...)

Estimating the economic impacts of maritime port development: The case of A Coruña, Spain
(Abstract...)

Abstract

Managing erosion-induced problems in NW Mediterranean urban beaches

The applicability of recommendations of the Eurosion project to define a policy to manage coastal erosion has been tested at the “beach” scale in the Mediterranean coast. Thus, a favourable sediment status has been defined for these beaches taking into account their main functions: recreation and protection. Because they act at two different seasons, this status needs to be seasonally defined. For the protection function, the favourable sediment status depends on the level of safety fixed by the manager taking into account the importance of existing infrastructures and, for recreation it depends on the use density of the beach. The concept has been formalized for beach management within a framework where benchmarking plays a crucial role to determine the need of intervention. This has been illustrated for open cell beaches where one of its boundaries can permit variations in the sediment budget and for pocket beaches which act as closed sediment cells.

Keywords: Erosion; Storms; Recreation; Tourism; Vulnerability; Resilience; Nourishment; Favourable sediment status.

Source: A. Sánchez-Arcilla, J. A. Jiménez and M. Marchand (2011); “Managing erosion-induced problems in NW Mediterranean urban beaches” (Original: “Managing coastal evolution in a more sustainable manner. The Conscience approach”, Article available online: 13 June 2011), Ocean & Coastal Management, Article in Press, Accepted Manuscript; Received: 20 July 2010; Revised: 17 May 2011; Accepted: 23 May 2011; Available online: 15 June 2011 under DOI: 10.1016/j.ocecoaman.2011.05.003.

Contact: jose.jimenez@upc.es

Link: ScienceDirect

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Ten Years Assessment of ICZM Principles Applied at a Local Scale: Ria de Aveiro Case Study

The need for an integrated management for Ria de Aveiro Lagoon is not new. Back in the 90s, the European Commission stated that, concerning the management of the coastal zones, there was a lack of co-ordination and concertation between the governmental institutions and the different sectors of activities. This circumstance was not related to the amount and quality of the management instruments and laws but due to the lack of co-ordination between the different stakeholders involved in this management process. This statement applied to the European space was perfectly adjusted to the Portuguese reality, in particular, to the estuary and coastal area of the Ria de Aveiro. The Aveiro lagoon is the target of several research projects as well as some action programmes. Firstly, this study analyses two of the most important Portuguese research projects: the MARIA and ESGIRA-MARia that were in the scope of the LIFE Environment of the European Union. Secondly, this study examines also the UNIR@RIA Spatial Plan, that was designed with a strong basis on an inter-municipality level and the POLIS LITORAL Ria de Aveiro Action Programme that appears as an environmental and financial opportunity to take into action some of the required measures for the study area. This paper analyses the previously mentioned Projects and Plans; comparing them; identifying their goals, their methodology; the involved stakeholders; pointing out their success actions and their weakness; establishing a coherent line between them; and enumerating the elements passed from the beginning of the studies stage to the actions plans of nowadays.

Keywords: Assessment of ICZM Principles; Ria de Aveiro Lagoon; Local scale.

Source: Alves, J. Silva, C. Pereira and L. Sousa (2011); “Ten Years Assessment of ICZM Principles Applied at a Local Scale: Ria de Aveiro Case Study“, Journal of Coastal Research, Special Issue 64 (Proceedings of the 11th International Coastal Symposium), 1311 – 1215, Szczecin, Poland, ISSN 0749-0208.

Contact: lisa@ua.pt

Link: Journal of Coastal Reserch

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Estimating coastal recession due to sea-level rise: beyond the Bruun rule

Accelerated sea level rise (SLR) in the twenty-first century will result in unprecedented coastal recession, threatening billions of dollars worth of coastal developments and infrastructure. Therefore, we cannot continue to depend on the highly uncertain coastal recession estimates obtained via the simple, deterministic method (Bruun rule) that has been widely used over the last 50 years. Furthermore, the emergence of risk management style coastal planning frameworks is now requiring probabilistic (rather than deterministic, single value) estimates of coastal recession. This paper describes the development and application of a process based model (PCR model) which provides probabilistic estimates of SLR driven coastal recession. The PCR model is proposed as a more appropriate and defensible method for determining coastal recession due to SLR for planning purposes in the twenty-first century and beyond.

Keywords: Coastal recession; Accelerated sea-level rise; The Bruun rule.

Source: R. Ranasinghe, D. Callaghan and M. J. F. Stive (2011); “Estimating coastal recession due to sea level rise: beyond the Bruun rule”, Climatic Change Journal; Received: 3 September 2009; Accepted: 5 April 2011; Published online: 10 June 2011 under DOI 10.1007/s10584-011-0107-8.

Contact: r.ranasinghe@unesco-ihe.org

Link: SpringerLink

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Estimating the economic impacts of maritime port development: The case of A Coruña, Spain

In recent years, we have seen an increasing number of port megaprojects in Spain (Ferrol, Gijón, Pasaia, Tenerife) justified, among other reasons, by the need for increasing storage and transport capacity, the location of container logistic centres on major shipping routes, or the need to have refuge harbours to avoid oil tanker accidents in case of bad sea conditions. The development of the megaproject for the A Coruña Outer Port in Galicia (northwest of Spain) is very controversial due to its major impacts on nearby fishing, and seafood banks affecting fishing and shellfish activities. We propose a methodology to assess these impacts on multi-species and multi-gear traditional fisheries. The analysis includes the impacts on over fifty fish and shellfish species (e.g. sand sole, European squid, spinous spider crab, common cuttlefish, European pilchard, pouting, gilthead sea bream, octopus, goose barnacle and seaweeds). Stakeholders’ knowledge (e.g. administration, professionals, fishermen) was used to assign non-spatial commercial data (landings) to the corresponding gears employed and fishing grounds affected by the port development. Our results show that the short-term economic losses are between 2.6 and 3 million Euros (2005 prices) and are mainly related to inshore fishing activities. Our results served as a frame of reference for negotiations between representatives of the A Coruña fishermen's guild and the Port Authority.

Keywords: Port development; Fishing and shellfish impacts; Economic valuation.

Source: X.R. Doldán-Garcia, M.L. Chas-Amil and J. Touza (2011); “Estimating the economic impacts of maritime port development: The case of A Coruña, Spain”, Article in Press, Accepted manuscript, to appear in Ocean & Coastal Management; Received: 5 October 2010; Revised: 26 April 2011; Accepted: 25 June 2011 under DOI: 10.1016/j.ocecoaman.2011.06.011.

Contact: xoan.doldan@usc.es

Link: ScienceDirect

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