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Factors Influencing Adaptive Marine Governance in a Developing Country Context: a Case Study of Southern Kenya Ecology and Society
Evans, Louisa S.; The School of International Development, University of East Anglia; louisa.evans@jcu.edu.au; Brown, Katrina; The School of International Development, University of East Anglia; k.brown@uea.ac.uk; Allison, Edward H.; The WorldFish Center; e.allison@cgiar.org.
Adaptive governance can be conceptualized as distinct phases of: 1) understanding environmental change; 2) using this understanding to inform decision making; and 3) acting on decisions in a manner that sustains resilience of desirable system states. Using this analytical framework, we explore governance in practice in two case studies in Kenya, that reflect the “messiness” of contemporary coastal governance in many developing country contexts. Findings suggest that adaptive marine governance is unlikely to be a smooth process of learning, knowledge sharing, and responding. There are institutional, sociocultural, and political factors, past and present, that influence each phase of both local and state decision making. New local...
Tipo: Peer-Reviewed Reports Palavras-chave: Coral reefs; Coastal zone; Fisheries; Governance; Inclusion; Knowledge; Participation.
Ano: 2011
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Акватория и берега Севастополя: экосистемные процессы и услуги обществу IBSS Repository
Шадрин, Н. В.; Павлова, Е. В..
В монографии представлены результаты изучения современной экологической ситуации в акватории Севастополя. Рассмотрены также вопросы взаимосвязей функционирования экосистем и социально-экономического развития. Для экологов, экономистов, менеджеров, студентов и жителей Севастополя.
Tipo: Book Palavras-chave: Ecosystems; Scales; Models; Anthropogenic factors; Eutrophication; Ichthyoplankton; Phytoplankton; Zooplankton; Oil pollution; Litter; Mortality; Coastal zone; Biodiversity; Rivers; Zooplankton; Ecosystems; Scales; Models; Eutrophication; Rivers; Biodiversity; Phytoplankton; Anthropogenic factors; Mortality; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_6838; Http://aims.fao.org/aos/agrovoc/c_4881; Http://aims.fao.org/aos/agrovoc/c_2734; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_33949; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1999 URL: http://repository.ibss.org.ua/dspace/handle/99011/381
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Биотический баланс сообщества пелагиали прибрежной зоны Черного моря IBSS Repository
Александров, Б. Г.; Курилов, А. В..
Дана количественная оценка вклада пелагических организмов в трансформацию органического вещества в прибрежной зоне Чёрного моря. На основании рассчитанных элементов биотического баланса – рационов, продукции и деструкции определены количественные взаимоотношения между бактерио-, фито- и зоопланктоном. Полученные результаты свидетельствуют о высоких продукционных характеристиках организмов микробиальной петли и низкой эффективности трансформации энергии на более высокие трофические уровни в пелагиали. Приведено сопоставление функциональной роли инфузорий и мезозоопланктона, дается оценка полученным результатам в сравнении с другими районами Мирового океана. Выявлена зависимость потребления первичной продукции микрозоопланктоном от географической широты...
Tipo: Journal Contribution Palavras-chave: Микробиальная петля; Биотический баланс; Зоопланктон; Первичная продукция; Прибрежная зона; Biotic balance; Primary production; Zooplankton; Coastal zone; Primary production Primary production http://aims.fao.org/aos/agrovoc/c_34329.
Ano: 2002 URL: http://repository.ibss.org.ua/dspace/handle/99011/399
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Influence de l'azote et du phosphore sur la croissance et la toxicité de Prorocentrum lima (Ehrenberg) Dodge ArchiMer
Morlaix, Martine; Lassus, Patrick.
Very few attempts have been made in order to investigate the role of nutrients on cellular growth and toxin production in dinoflagellates associated with DSP (Diarrhetic Shellfish Poison). Some preliminary results are presented here, aiming at a better knowledge of inorganic nitrogen and organic phosphorus effects upon division rate and toxin content of Prorocentrum lima (PL2V spanish strain). Nitrogen have a positive effect on growth rate, up to a threshold value of 880muM.l-1. Above this threshold the rate decreases. There is no effect on toxin content since okadaic acid and DTX1 cell contents remain low (4.8 +/- 0.5 pg.cell.-1) and steady. Phosphorus effect upon division rate follows a non-linear relationship, whereas cellular toxic content is inversely...
Tipo: Text Palavras-chave: Croissance; Toxicité; Concentration chimique; Division cellulaire; Production; Espagne; Phosphore; Azote; Europe; Nutriment; Milieu marin; Zone côtière; Ecotoxicologie; Pyrrophycophyta; Algae; Thallophyta; Okadaïque acide; Prorocentrum lima; Growth; Toxicity; Chemical concentration; Cell division; Production; Spain; Phosphorus; Nitrogen; Europe; Nutrient; Marine environment; Coastal zone; Ecotoxicology; Pyrrophycophyta; Algae; Thallophyta.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00133/24469/22483.pdf
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Modele tridimensionnel de circulation et de dispersion ArchiMer
Thouvenin, Benedicte; Salomon, J.
Bottom topography, coastal morphology and density variations are the three factors influencing marine current flow in Seine Bay. Numerical modeling allows the study of this tridimensional structure.
Tipo: Text Palavras-chave: Hodographs; Salinity gradients; Coastal zone; Bottom topography; Mathematical models; Tidal currents; Dispersion; Water circulation.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1260.pdf
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Impact du barrage d'Arzal sur la qualité des eaux de l'estuaire et de la baie de la Vilaine ArchiMer
Merceron, Michel.
The Arzal dam upon the Vilaine estuary provokes an aggravation of a recurrent summer hypoxia of the bottom waters in the bay of Vilaine.
Tipo: Text Palavras-chave: Suspended sediments; Salinity; Coastal zone; Dam estuary; Oxygen depletion; Matières en suspension; Salinité; Zone côtière; Estuaire; Barrage; Anoxie.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/rapport-2658.pdf
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Cycle du mercure en estuaire, baie de Seine et pays de Caux ArchiMer
Laurier, Fabien.
The Seine estuary and its adjacent region Pays de Caux are two significant sources of mercury for coastal marine environments. It is carried through fluvial means for the Seine bay and through karstic fresh water emergences for Pays de Caux's coastal area. Mercury cycle in the Seine estuary and bay is affected by additional anthropical activities. The estuary's maximal turbidity area acts like a trap and a chemical reactor for fluvial mercury. Within this area, we can confirm: (i) the non conservative behaviour of dissolved mercury; (ii) mercury enrichment of particles when comparing the Seine's and marine environment and we suggest mercury particle redistribution from the organic fraction to the oxyhydroxydes fraction. A large fraction of mercury is...
Tipo: Text Palavras-chave: Bay of Seine; Pays de Caux; Estuary; Coastal zone; Speciation; Bioavailability; Mercury; Pays de Caux; Seine; Estuaire; Emergence; Zone côtière; Spéciation; Biodisponibilité; Mercure.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/these-1842.pdf
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Suivi bactériologique des gisements naturels de coquillages des Côtes d'Armor fréquentés en pêche à pied - Année 2005 ArchiMer
Rougerie, Michel; Prigent, Jean-luc.
Tipo: Text Palavras-chave: France; Bay of Saint Brieuc; Bacteriology; Contamination; Coastal zone; Recreational fishing; Shellfish beds.
Ano: 2006 URL: https://archimer.ifremer.fr/doc/2006/rapport-2103.pdf
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Cartographic Atlas of Marine Environmental Law in West Africa. Methodology and use for spatial planning ArchiMer
Le tixerant, Matthieu; Bonnin, Marie; Gourmelon, Françoise; Ragueneau, Olivier; Rouan, Mathias; Ly, Ibrahima; Ould zein, Ahmed; Ndiaye, Fatou; Diedhiou, Mohamed; Ndao, Souleye; Ndiaye, Mamadou Bassirou.
In the marine environment, positive law generates multiple zones and regulatory limits that overlap in space, justifying a cartographic representation as a relevant approach to promote understanding (synthetic vision), analysis (highlighting legal anomalies, inconsistencies and redundancies), dissemination and communication to different audiences (awareness-raising). The article presents a methodology leading to the mapping of marine and coastal environmental law in West Africa, using a geographic information base to produce static or interactive cartographic representations via a Geographic Data Infrastructure (GDI). It shows the contribution of this type of mapping to a transversal approach in a multi-activity, multi-sectoral and multi-scale context. A...
Tipo: Text Palavras-chave: Afrique de l’ouest; Mer; Littoral; Droit de la mer; Environnement; SIG; Cartographie; West Africa; Sea; Coastal zone; Law of the sea; Environment; GIS; Cartography.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00656/76813/81628.pdf
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Bathymetric estimation using MERIS images in coastal sea waters ArchiMer
Minghelli Roman, Audrey; Polidori, Laurent; Mathieu-blanc, Sandrine; Loubersac, Lionel; Cauneau, François.
Bathymetric estimation using remote sensing images has previously been applied to high spatial resolution imagery such as CASI, Ikonos, or SPOT but not on medium spatial resolution images (i.e., MERIS). This choice can be justified when there is a need to map the bathymetry on large areas. In this letter, we present the results of the bathymetry estimation over a large known area, the Gulf of Lion (France), expanding over 270 x 180 km.
Tipo: Text Palavras-chave: MERIS; Coastal zone; Bathymetry.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2597.pdf
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Relations entre apports terrigènes et conchyliculture dans les Pertuis Charentais ArchiMer
Soletchnik, Patrick; Polsenaere, Pierre; Le Moine, Olivier; Guesdon, Stephane; Bechemin, Christian.
This work presents interactions between quantitative and qualitative river freshwater inputs and the shellfish farming (oyster and mussel) in the Pertuis Charentais. The quantity of freshwater (i.e. salinity) seems to have a weak influence on the shellfish farming contrarily to its quality determined by particulate and dissolved matters contained in the water. In autumn and winter, large precipitations have a "globally positive" effect amending the coastal ecosystem. Associated dissolved nutriments and the organic matter largely determine the quality of the coming spring growth for bred shellfish, itself controlling in turn the annual yield efficiencies. However, in winter their effects are postponed because of strong mineral load, low luminosity and...
Tipo: Text Palavras-chave: Conchyliculture; Huîtres; Moules; Apports terrigènes; Zone côtière; Pertuis Charentais.; Shellfish aquaculture; Oysters; Mussels; Terrestrial inputs; Coastal zone; Pertuis Charentais..
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00248/35964/34490.pdf
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The Contribution of Wind-Generated Waves to Coastal Sea-Level Changes ArchiMer
Dodet, Guillaume; Melet, Angélique; Ardhuin, Fabrice; Bertin, Xavier; Idier, Déborah; Almar, Rafael.
Surface gravity waves generated by winds are ubiquitous on our oceans and play a primordial role in the dynamics of the ocean–land–atmosphere interfaces. In particular, wind-generated waves cause fluctuations of the sea level at the coast over timescales from a few seconds (individual wave runup) to a few hours (wave-induced setup). These wave-induced processes are of major importance for coastal management as they add up to tides and atmospheric surges during storm events and enhance coastal flooding and erosion. Changes in the atmospheric circulation associated with natural climate cycles or caused by increasing greenhouse gas emissions affect the wave conditions worldwide, which may drive significant changes in the wave-induced coastal hydrodynamics....
Tipo: Text Palavras-chave: Wind waves; Sea level; Coastal zone; Climate change.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00509/62046/66721.pdf
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Dynamique des suspensions et des depots: Synthese des discussions ArchiMer
Larsonneur, C.
During the debate, the observations have dealt with balance-sheets, swell influence, sediment movements, and sedimentation flow deducted from suspensions studies. General remarks have been formulated, and a distinction of main fluvial mouths in the French littoral have been suggested.
Tipo: Text Palavras-chave: Drowned valleys; Deltas; Estuaries; Coastal zone; Particle motion; Suspended particulate matter; Sediment dynamics.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1287.pdf
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Sediment and water movement in coastal embayments. ArchiMer
Collins, M.
The investigations described in this report relating to Swansea Bay and Thermaicos Bay demonstrate that processes which take place in embayments, particularly those concerned with water and sediment movement, representing only a constituent part of a much larger transport system.
Tipo: Text Palavras-chave: Coastal zone; Sediment transport; Tidal motion; Wave motion; Hydrodynamics; Bays; Water motion; Sediment movement.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1286.pdf
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Behaviour and fate of urban particles in coastal waters: Settling rate, size distribution and metals contamination characterization ArchiMer
Oursel, B.; Garnier, C.; Pairaud, Ivane; Omanovic, D.; Durrieu, G.; Syakti, A. D.; Le Poupon, C.; Thouvenin, Benedicte; Lucas, Y..
The evaluation of contaminant net fluxes from the coast to the open sea requires the study of terrigeneous particles behaviour and fate. We studied the particles issued from two small coastal rivers whose waters are mixed with treated wastewater (TWW) coming from the Marseille wastewater treatment plant (WWTP) just before discharge to the Mediterranean Sea. An experimental device was developed and used to investigate particles settling rates, size distribution and metallic contamination when mixing with seawater. The particles were sampled in flood deposits of rivers and outlets during rainy periods and in the outlet water during dry periods. The flood deposits were mainly composed of 50–200 μm-sized particles, higher metals content being observed in the...
Tipo: Text Palavras-chave: Particles contamination; Urban rivers; Coastal zone; TWW; Hydro sedimentation modelling.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00169/28066/27277.pdf
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Tests and jaws’ morphological patterns of regular sea urchin Paracentrotus lividus (Lamarck, 1816) in relation to environmental conditions ArchiMer
Caill-milly, Nathalie; Mahias, Jérémy; Bru, Noelle; De Casamajor, Marie-noelle; Pigot, Thierry; Corbet, Paul.
This paper investigates whether morphological variability of test and Aristotle’s lantern can be detected in sea urchins exposed to domestic pollution and whether this variability can be also related to tidal level and hydrodynamic features. The study was conducted on four sites along the French Basque coast. Each site is characterized by its geological layers’ orientation, regardless of its proximity to sewage outlets. Analyses on high-resolution pictures of jaws were performed and three parameters were retained: length, height and demipyramid dry mass. Five shape descriptors were consequently defined regarding the test and the jaws. Individuals with heavy test density associated with highly developed demipyramid regarding test diameter and height were...
Tipo: Text Palavras-chave: Morphometry; Body size; Aristotle's lantern; Sewage discharge; Coastal zone; Biological indices.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00612/72402/71347.pdf
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Physiological basis of interactive responses to temperature and salinity in coastal marine invertebrate: Implications for responses to warming ArchiMer
Torres, Gabriela; Charmantier, Guy; Wilcockson, David; Harzsch, Steffen; Giménez, Luis.
Developing physiological mechanistic models to predict species’ responses to climate‐driven environmental variables remains a key endeavor in ecology. Such approaches are challenging, because they require linking physiological processes with fitness and contraction or expansion in species’ distributions. We explore those links for coastal marine species, occurring in regions of freshwater influence (ROFIs) and exposed to changes in temperature and salinity. First, we evaluated the effect of temperature on hemolymph osmolality and on the expression of genes relevant for osmoregulation in larvae of the shore crab Carcinus maenas. We then discuss and develop a hypothetical model linking osmoregulation, fitness, and species expansion/contraction toward or away...
Tipo: Text Palavras-chave: Carcinus maenas; Climate change; Coastal zone; Larva; MRNA expression; Multiple stressors; Osmoregulation; Salinity; Temperature.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00692/80408/83516.pdf
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Evaluation de la pollution par les detergents anioniques en cinq zones du littoral français ArchiMer
Cossa, Daniel.
Tipo: Text Palavras-chave: Experimentation; Anionic detergents; Coastal zone; Marine pollution.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2156.pdf
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Dynamique du carbone et des nutriments dans la zone côtière Baie de l’Aiguillon-Pertuis Breton et influence des apports terrestres du bassin versant du Marais poitevin ArchiMer
Lannuzel, Reva.
Coastal zones represent key systems in biogeochemical cycle couplings between continents, oceans and the atmosphere transporting considerable amounts of matter, energy and nutrients (C, N, P et Si) from land to sea. Despite its relatively modest surface area (7 % of the global ocean surface), this zone accounts for 14–30 % of all oceanic primary production. The present study deals with nutrients and carbon dynamics during a full hydrologic cycle in 2017 over the terrestrial-aquatic continuum formed by the Poitevin Marsh-Aiguillon Bay- Breton Sound to better understand terrestrial export influence on the coastal zone. Carbon and nutrient concentrations were sampled twice a month over heterogeneous sites (estuaries, channels and coastal sites) to integrate...
Tipo: Text Palavras-chave: Zone côtière; Biogéochimie; Carbone; Nutriments; Chlorophylle a; Limitation potentielle et réelle; Dynamique.; Coastal zone; Biogeochemistry; Carbon; Nutrients; Chlorophyll a; Real and potential limitation; Spatio-temporal dynamic..
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00445/55647/57299.pdf
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Bilan des connaissances sur la qualité de l'eau dans la zone du polder conchylicole de Bouin - Projet LEAUPOLD ArchiMer
Hatt, Philippe-jacques; Stavrakakis, Christophe; Buchet, Vincent; Dupuy, Beatrice.
Le polder conchylicole de Bouin (Vendée) est le principal bassin français de production de naissains d’huîtres creuses issus d’écloseries. Depuis 2007, et malgré l’installation de dispositifs de traitement de l’eau, des anomalies dans les élevages voire des mortalités affectent la production des écloseries et nurseries du secteur, ainsi que celle de microalgues en grand volume d'une entreprise spécialisée. Les observations des professionnels orientent la recherche de la cause de ces mortalités sur les contaminants chimiques, notamment les pesticides utilisés par l'agriculture, dont les exploitations du polder agricole, qui jouxtent le polder conchylicole. Comme l'ont montré de nombreux travaux, certains de ces produits altèrent la qualité de l’eau de mer...
Tipo: Text Palavras-chave: Bassin Loire-Bretagne; Baie de Bourgneuf; Environnement; Conchyliculture; Qualité de l'eau; Pollution chimique; Bassin versant; Mortalité; Zone côtière; Loire-Bretagne district; Bourgneuf bay; Environment; Shellfish aquaculture; Water quality; Chemical pollution; Watershed; Mortality; Coastal zone.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00280/39165/37726.pdf
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