scholarly journals Connectivity Patterns for Direct Developing Invertebrates in Fragmented Marine Habitats: Fish Farms Fouling as Source Population in the Establishment and Maintenance of Local Metapopulations

2021 ◽  
Vol 8 ◽  
Author(s):  
Victoria Fernandez-Gonzalez ◽  
Sandra Navarro-Mayoral ◽  
Pablo Sanchez-Jerez
Keyword(s):  
Coastal Zone Management ◽  
Fish Farm ◽  
Source Population ◽  
Fish Farms ◽  
Species Dispersal ◽  
Stepping Stones ◽  
Ecological Connectivity ◽  
Zone Management ◽  
Marine Habitats

Artificial structures can be considered as high spatially structured habitats in the marine pelagic system, where patch connectivity would be strongly dependent on the exchange of larvae or dispersing individuals. Fish-farms located offshore may alter ecological connectivity, modifying trophic resources, and species dispersal among patches. High population densities of invertebrates can be found associated with fish-farm fouling communities, which can act as a seed source, contributing to the patterns of connectivity through individuals exchange between subpopulations or with sink populations. A field experiment was performed to analyse the role of fish-farms in the colonisation of new uninhabited habitats (floating experimental units) located at different positions relative to the fish farm and the main current, containing artificial habitats with and without feed pellets similar to those used in the fish farm. Amphipods were used as example of direct developing invertebrates for studying dispersing individuals from the fish farm to the new habitats. The richest and most abundant populations in this study were found close to and downstream of the fish farm, surpassing 1,000 amphipods at their maximum. Moreover, some floating habitats located more than 2 km from the fish farm were colonised in only 15 days. Thus, the role of fish farms has been shown to extend beyond a ‘stepping-stones’ effect in species dispersal, and have an additional effect on ecological connectivity by increasing population sizes and acting as population source. Our study aims to provide recommendations for coastal zone management in order to predict potential spread from fish farms to other platforms in the future and promote solutions related to interactions and consequences of connectivity within and between marine facilities.

Institutional Networks for Inclusive Coastal Management in Trinidad and Tobago

2002 ◽  
Vol 34 (6) ◽  
pp. 1095-1111 ◽  
Author(s):  
Emma Tompkins ◽  
W Neil Adger ◽  
Katrina Brown
Keyword(s):  
Resource Management ◽  
Trinidad And Tobago ◽  
Coastal Zone Management ◽  
Social Institutions ◽  
Zone Management ◽  
Resource Managers ◽  
Participatory Workshop ◽  
The Social ◽  
Semistructured Interviews

The authors consider the role of institutional networks in integrated and inclusive coastal-zone management in Trinidad and Tobago. Drawing on theories of social institutions, a framework for understanding the institutional prerequisites for participatory management is developed. In this framework, distinction is made between institutions at the community, formal-organisational, and national regulatory levels and the means by which institutions adapt to and learn about new issues in terms of networks of dependence and exchange are characterised. The immediate networks between actors (their spaces of dependence) are augmented by wider networks between institutions at various scales (their spaces of exchange). This framework is applied to a case study of resource management in Trinidad and Tobago. Semistructured interviews with key government urban and economic planners, fisheries regulators, and other agents in Trinidad and Tobago, and a participatory workshop for resource managers, are used to identify the perceived opportunities and constraints relating to integrated and inclusive resource management within the social institutions. The findings are analysed through an exploration of the spaces of dependence and exchange that exist in the various social networks at the different institutional scales. The prescriptive relevance of this approach is in the demonstration of the nature of change required in social institutions at all scales to facilitate integrated and inclusive resource management.

Rising Seas, Receding Coastlines, and Vanishing Maritime Estates and Territories: Possible Solutions and Reassessing the Role of International Law

2014 ◽  
Vol 16 (1) ◽  
pp. 38-74
Author(s):  
Tony George Puthucherril
Keyword(s):  
International Law ◽  
Coastal Zone ◽  
Environmental Law ◽  
Coastal Zone Management ◽  
Integrated Coastal Zone Management ◽  
International Environmental Law ◽  
Zone Management ◽  
Rules And Principles ◽  
Central Argument

Abstract This article probes the role of international law, (namely, the international law of the sea, the international rules on statehood, and international environmental law) in providing a legal and normative framework to help countries respond to the challenges brought about by sea level rise. It is noted that possible solutions can operate at two levels – first, by re-engineering existing international rules to secure continuance of the rights and privileges guaranteed under existing international law, and second, by bringing to the fore the need to develop international rules on integrated coastal zone management to facilitate the implementation of coastline armouring. The central argument here is that while new rules and principles of international law are required at both levels, the emphasis should, as a first step, be on rule development vis-à-vis integrated coastal zone management.

scholarly journals Integrated Methodological Approach for the Documentation of Marine Priority Habitats and Submerged Antiquities: Examples from the Saronic Gulf, Greece

2021 ◽  
Vol 13 (21) ◽  
pp. 12327
Author(s):  
Nikos Georgiou ◽  
Xenophon Dimas ◽  
George Papatheodorou
Keyword(s):  
Cultural Heritage ◽  
Coastal Zone ◽  
Marine Pollution ◽  
Methodological Approach ◽  
Coastal Zone Management ◽  
Cost Effective ◽  
Resource Exploitation ◽  
Zone Management ◽  
Marine Habitats ◽  
Anthropogenic Intervention

The rising human activities and resource exploitation have increased pressure in the coastal zone and the marine environment, risking the very existence of Marine Priority Habitats (MPH) and Underwater Cultural Heritage (UCH). The delimitation of these two priority areas in a time- and cost-effective way is essential for the sustainable management and exploitation of sea resources and natural-cultural heritage preservation. We propose an Integrated Methodological Approach for the Detection and Mapping of MPH and UCH. To achieve this, we used a downscale methodological approach of increasing spatial resolution based on three main methodological axes: (i) desk-based research, (ii) marine geophysics/seafloor classification, and (iii) in-depth visual inspection/3D mapping. This methodological scheme was implemented at the Saronic Gulf and focused on Aegina island. The methodology proposed, which combines existing and new techniques, proved successful in detecting and mapping the MPH and UCH in detail, while it compiled the information necessary for the establishment of Marine Spatial Planning (MSP) maps. Finally, the MSP map constructed for the Saronic Gulf demonstrated the lack of holistic coastal zone management plans due to impacts on UCH linked to anthropogenic intervention and the sparsity of marine habitats owing to marine pollution.

scholarly journals The Role of Social-Ecological Resilience in Coastal Zone Management: A Comparative Law Approach to Three Coastal Nations

2019 ◽  
Vol 7 ◽  
Author(s):  
Ahjond Garmestani ◽  
Robin K. Craig ◽  
Herman Kasper Gilissen ◽  
Jan McDonald ◽  
Niko Soininen ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Coastal Zone Management ◽  
Comparative Law ◽  
Ecological Resilience ◽  
Zone Management ◽  
Social Ecological

Part II Commercial Aspects of the Marine Environment, 4 The UNDP and Ocean Governance

2018 ◽  
Author(s):  
Kirk Elizabeth A
Keyword(s):  
Coastal Zone Management ◽  
Development Programme ◽  
Global Ocean ◽  
Integrated Coastal Zone Management ◽  
Large Marine Ecosystems ◽  
Zone Management ◽  
Ocean Governance ◽  
History Of ◽  
Nations Development

This chapter discusses the role of the United Nations Development Programme (UNDP) in ocean governance. It first provides a background on the history of the UNDP and its basic approach to ocean governance, with emphasis on how its history has shaped the UNDP’s relationship with ocean governance. It then considers the UNDP’s current and former activities relating to ocean governance, noting that many of the initiatives it supports appear to focus on the concept of Large Marine Ecosystems (LMEs) or on integrated coastal zone management. It also describes the UNDP’s regime building approach to the development of oceans governance regimes and concludes with an assessment of areas in which UNDP’s activities fit with global ocean governance objectives.

Sign in / Sign up

Export Citation Format

Share Document