Paul Tett

Paul Tett
Scottish Association for Marine Science

38.07

About

191
Publications
20,923
Reads
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6,191
Citations
Research Experience
January 1996 - February 2010
Edinburgh Napier University
Position
  • Professor (Full)
August 1965 - August 2016
University of the Highlands and Islands
Position
  • Reader in Coastal Systems

Publications

Publications (191)
Article
Full-text available
Increasing direct human pressures on the marine environment, coupled with climate‐driven changes, is a concern to marine ecosystems globally. This requires the development and monitoring of ecosystem indicators for effective management and adaptation planning. Plankton lifeforms (broad functional groups) are sensitive indicators of marine environme...
Article
Full-text available
This paper examines marine planning in Scotland and the extent to which it constrains or enables change towards adaptive governance. An in-depth case study of the partnership-based regional marine planning process is presented, based on interviews and documentary analysis. Drawing on adaptive governance theory, analysis focussed on key themes of: (...
Article
Full-text available
Marine aquaculture is the most promising industry for ensuring future provision of seafood. Yet, the worldwide growth and expansion of this industry have been slower than expected, calling for the identification of environmentally suitable sites while accounting for all factors that could constrain or benefit its establishment. Here, we determine t...
Article
Full-text available
Nutrient enrichment is a significant cause of ecosystem change in coastal habitats worldwide. This study focuses on the change in a benthic macroinvertebrate community and environmental quality as assessed through different biotic indices following the construction of a sewage outfall pipe in the west of Scotland, from first implementation to seven...
Article
Plankton are sensitive indicators of change and, at the base of marine food webs, they underpin important ecosystem services such as carbon sequestration and fisheries production. In the UK and the Northeast Atlantic region, change in plankton functional groups, or ‘lifeforms’, constructed based on biological traits, is the formally accepted policy...
Article
Full-text available
In the last 15 years, conservation has shifted increasingly towards perspectives based on the instrumental value of nature, where what counts is what provides benefits to humans. The ecosystem services framework embraces this vision of nature through monetary valuation of the environment to correct market failures and government distortions that hi...
Preprint
Interactions between environmental and social change are complex and require deepinsights into human perceptions, values, motivations and choices. Humanities disciplines can bringthese insights to the study of marine social–ecological systems in the context of global environmentalchallenges. Such systems can be defined on a range of scales, but the...
Technical Report
Full-text available
The ECCLR Committee is carrying out this work in advance of the Rural Economy and Connectivity (REC) Committee’s forthcoming inquiry on aquaculture in Scotland, the terms of reference for which will be considered in the coming weeks. The ECCLR Committee’s focus is the report commissioned by SPICe and undertaken by SAMS Research Services Ltd (SRSL)....
Article
Full-text available
Interactions between environmental and social change are complex and require deep insights into human perceptions, values, motivations and choices. Humanities disciplines can bring these insights to the study of marine social–ecological systems in the context of global environmental challenges. Such systems can be defined on a range of scales, but...
Presentation
Full-text available
With the global population estimated to reach 9.8 billion by 2050, food security and nutrition are critical issues. Seafood is especially important, where it makes up a larger portion of the diet than elsewhere. Half of the seafood eaten on the planet comes from aquaculture and that share continues to grow. As it does, care must be taken to ensure...
Article
Water quality in Tolo Harbour and Channel (Tolo) has been improved since 1998 after the diversion of sewage effluent. However, it remains poorly understood how nutrient loading reduction has impacted the phytoplankton community. To evaluate this, we applied a Phytoplankton Community Index PI(mp) to the 23-year data (1991-2013) at inner (TM4) and ou...
Article
Modern approaches to Ecosystem-Based Management and sustainable use of marine resources must account for the myriad of pressures (interspecies, human and environmental) affecting marine ecosystems. The network of feeding interactions between co-existing species and populations (food webs) are an important aspect of all marine ecosystems and biodive...
Article
Full-text available
Much work had been undertaken on tracking change in the condition of marine pelagic ecosystems and on identifying regime shifts. However, it is also necessary to relate change to states of good ecosystem health or what the European Marine Strategy Framework Directive (MSFD) calls “Good Environmental Status” (GES). Drawing on existing scientific and...
Article
Full-text available
Valuation that focuses only on individual values evades the substantial collective and intersubjective meanings, significance and value from ecosystems. Shared, plural and cultural values of ecosystems constitute a diffuse and interdisciplinary field of research, covering an area that links questions around value ontology, elicitation and aggregati...
Article
We evaluate whether society can adequately be conceptualized as a component of social-ecological systems, given social theory and the current outputs of systems-based research. A mounting critique from the social sciences posits that resilience theory has undertheorized social entities with the concept of social-ecological systems. We trace the way...
Article
Microplankton plays a vital part in marine ecosystems, and its importance has been recognized by the inclusion of microplankton community composition in regulatory frameworks such as the European Water Framework Directive and the Marine Strategy Framework Directive as an indicator of ecological status. Quantitative techniques are therefore required...
Chapter
Glacial retreat at high latitudes is exposing new coastlines where mariculture might help satisfy demand for protein and provide economic opportunities for a locally expanding human population. Scottish sea-farming takes place along a previously glaciated coast. Based on experience here, we propose a general framework for sustainable mariculture ba...
Research
Full-text available
A report on the outputs of a workshop held in Belfast March 2011 on developing indicators and targets for the pelagic (plankton) habitat in the context of Good Environmental Status as defined by the MSFD
Research
Full-text available
This is the final report to Defra on the Lifeform and State Space project in developing a UK integrated plankton monitoring programme
Book
Coastal Zones: Solutions for the 21st Century bridges the gap between national and international efforts and the local needs for actions in communities where coastal zone challenges are faced daily. The solution-oriented approach covers issues of coastal zone management as well as responses to natural disasters. This work provides ideas on how to f...
Article
Full-text available
The European Unions' Marine Strategy Framework Directive aims to limit anthropogenic influences in the marine environment. But marine ecosystems are characterized by high variability, and it is not trivial to define its natural state. Here, we use the physical environment as a basis for marine classification, as it determines the conditions in whic...
Article
Full-text available
The basin of Thau in southern France is a shallow, weakly flushed lagoon which is an important location for oyster cultivation. Phytoplankton analyses were carried out in 1975–1976 and then (almost) continuously since 1987. We report an investigation of ‘the balance of organisms’ in phytoplankton in relation to reductions in phosphorus loading, usi...
Article
Full-text available
The sustainable exploitation of marine ecosystem services is dependent on achieving and maintaining an adequate ecosystem state to prevent undue deterioration. Within the European Union, the Marine Strategy Framework Directive (MSFD) requires member states to achieve Good Environmental Status (GEnS), specified in terms of 11 descriptors. We analyze...
Chapter
This chapter describes the structure, main processes and functions of coastal and marine habitats. Models offer a way to synthesise our understanding of the environment, analyse changes in ecosystems with complex and non-linear interactions, and forecast future changes. A feature of the shelf sea environment is that it is heavily influenced by proc...
Chapter
Given the complexities and unknowns of coastal and marine futures, scenario analysis using a ‘Delphi process’ can help to explore expert views and assemble them into consistent ‘best guesses’ of alternative futures. This chapter presents five scenarios consisting of descriptions of different societal organisation in relation to (i) the importance o...
Article
Full-text available
2014. Temporal constraints on ecosystem management: definitions and examples from Europe's regional seas. Ecology and Society 19(4): ABSTRACT. Our ability to meet environmental targets is often constrained by processes and events that occur over long timescales and which may not be considered during the planning process. We illustrate with examples...
Technical Report
Full-text available
Healthy ecosystems are essential for the long-term wellbeing of humans as they provide vital services such as food production, pollination, climate regulation and flood protection. Global trends including population growth, changing diets and consumption patterns, urbanisation and climate change will exert increasing pressure on supplies of food an...
Article
Reliable ecosystem quality assessment of marine environments is increasingly important due to mounting pressures attributable to human activities. Biotic indices are widely used in studies to describe communities and indicate the ecological state of systems. This study focuses on benthic macroinvertebrate-based biotic indices for the assessment of...
Article
Full-text available
Although the terms 'health' and 'healthy' are often applied to marine ecosystems and communicate information about holistic condition (e. g. as required by the Ecosystem Approach), their meaning is unclear. Ecosystems have been understood in various ways, from non-interacting populations of species to complex integrated systems. Health has been see...
Chapter
As the diverse contributions to this volume show, there is now widespread recognition of the importance of tidal stirring as one of the fundamental influences on the shelf sea environment. Not only does it control the intensity of vertical mixing thus partitioning the shelf into mixed and stratified regions separated by fronts, but tidal stirring i...
Article
In this paper we describe a new ecological model for Regions of Restricted Exchange (RRE), such as fjords, estuaries, rias and lagoons. The model is intended to simulate the impact of external nutrient input on microplankton (phytoplankton plus pelagic microheterotrophs) in RREs. We have implemented the model with the practical purpose of finding a...
Book
ICZM depends on an understanding of the coastal zone system to be managed. During the SPICOSA project, the authors' task was to provide teams engaged in applications of the 'Systems Approach Framework' with a theoretical basis for understanding these systems in terms of ecological, economic, and social structures and processes. This chapter briefly...
Article
Recent European Court rulings in the context of eutrophication viewed proliferation of a particular species of algae as a disturbance to the balance of aquatic ecosystems and the proliferation of one or more species as a cause of a reduction in other species. We discuss the scientific basis for this opinion in relation to the growth of marine prima...
Article
Full-text available
We report an application of the Science and Policy Integration for Coastal System Assessment (SPICOSA) Systems Approach Framework (SAF) to Loch Fyne, a fjord in western Scotland. The issue was the potential for conflict between shellfish aquaculture and recreational use for yachting. This was investigated by building an ecological-economic model to...
Article
Full-text available
The yield of microphytobenthic (MPB) chlorophyll from nitrogen expresses the relationship between chlorophyll formation and nutrient consumption within the surface sediment. In shallow coastal lagoons MPB have an important role in chlorophyll dynamics and may represent the majority of microalgal chlorophyll pigments. Given that chlorophyll has been...
Article
Anthropogenic nutrient enrichment of coastal waters is considered to be one reason for the putative worldwide increase in the occurrence of harmful algal blooms (HABs). This has led to the view that the occurrence of HABs diagnoses the undesirable consequence of anthropogenic nutrient enrichment and thus eutrophication. This view rests on a set of...
Chapter
The culture of marine species has been steadily increasing since the early 1970s, especially over the last 20 years, when the total biomass of captured wild fish started to stabilize. The growth in human population and the pressures on wild stocks, combined with increased interest in aquatic products and diversification, have been the impetus for t...
Article
Ria Formosa is a Region of Restricted Exchange given its limited connection to coastal water circulation. Furthermore, it is subject to several anthropogenic activities that can lead to an increase in nutrients and potentially to eutrophication. Previous studies have shown the importance of the benthic compartment, specifically the microphytobentho...
Article
This paper introduces a DPSIR framework for the estimation of the aquacultural carrying and waste-assimilating capacities of fjordic water bodies. The ACExR-LESV physical-biological model, intended as a water quality management support tool by simulating pressure-impact relationships, is described in outline. Results of testing in a typical Scottis...
Article
Phytoplankton are free-floating plants found in marine and freshwaters that through their photosynthetic growth form the base of the aquatic food chain. A small subset of the phytoplankton may be harmful to human health or to human use of the ecosystem. The species that cause harm are now widely referred to as ‘Harmful Algae’ with the term ‘Harmful...
Article
2. The large-scale physical environment 3. Sediment dynamics 4. Large-scale nutrient fluxes and geo-chemical environment
Article
The yield of phytoplankton chlorophyll from nitrogen is a useful parameter in the study of eutrophication of coastal waters, providing the link between chlorophyll formation and nutrient consumption. This parameter has been estimated for microphytobenthos from Ria Formosa lagoon on the south coast of Portugal with a series of three experiments cond...