Consulta: creatorFacets:"Lemonnier, Hugues"
Registros recuperados: 41
Data/hora: 17/06/2024 07:36:15

DEDUCTION : A research project for shrimp farming sustainability in New-Caledonia
Provedor de dados: 5
Autores: Beliaeff, Benoit; Chim, Liet; Della Patrona, Luc; Goyard, Emmanuel; Herlin, Jose; Labreuche, Yannick; Walling, Emilie; Ansquer, Dominique; Brun, Pierre; Castex, Mathieu; Coatanea, Denis; Courties, Claude; De Lorgeril, Julien; Dufour, Robert; Frappier, Julie; Goarant, Cyrille; Huber, Matthias; Lemaire, Pierrette; Lemonnier, Hugues; Loubersac, Lionel; Le Roux, Frederique; Lucas, Ronan; Patrois, Jacques; Peignon, Jean-marie; Pham, Dominique; Ramage, Yannick; Soulard, Benoit; Vic, Marlene; Vourey, Elodie; Wabete, Nelly.
New Caledonian shrimp farming feasibility studies started in the mid-seventies. Today ca. 2000 tons of Litopenaeus stylirostris, introduced in 1978, are semi-intensively produced each year. Since fifteen years, production has been impacted by two seasonal vibriosis, the “Summer” syndrome caused by Vibrio nigripulchritudo in relation to pond bottom and water column quality, and the “Winter Syndrome” caused by Vibrio penaeicida in relation to drastic temperature drops . With the ambition of elucidating processes possibly leading to mortality outbreaks in ponds, Ifremer has been conducting a research program since 2003 under the DESANS project (2003-2006) and the present DEDUCTION project, equally funded by the South and North Provinces and by the Government...
Tipo: Text
Palavras-chave: Shrimp farming; Technical and scientific support; Vibriosis; Water quality; Pathology; Ecophysiology; Genetics; Zoosanitary monitoring and procedures; Multifactorial and multidisciplinary approach.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00143/25438/23591.pdf

Diagenetic Processes in Aquaculture Ponds Showing Metal Accumulation on Shrimp Gills
Provedor de dados: 5
Autores: Lemonnier, Hugues; Royer, Florence; Caradec, Florian; Lopez, Etienne; Hubert, Clarisse; Rabiller, Emilie; Desclaux, Terence; Fernandez, Jean-michel; Andrieux-loyer, Francoise.
The gill is the organ by which many toxic metals are taken up by crustaceans. Iron is known to precipitate at its surface, a phenomenon recently observed in some tropical aquaculture ponds. The present study uses a field approach to understand better the environmental conditions and ecological processes involved in this deposit. Because shrimp are exposed to reduced products originating from organic waste accumulated in the sediment, spatial variation in pH, redox potential and concentrations of dissolved metals in pore water were investigated in these ponds. Total organic carbon, acid volatile sulfide and pyrite were also analyzed in the solid phase. Fe2+ in pore waters showed high spatial variability between ponds and within the same pond with...
Tipo: Text
Palavras-chave: Shrimp aquaculture sustainability; Iron deposits; Gills; Sediment acidification; Redox dynamic; Dynamic of metals; Pyrite.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/79026/81450.pdf

Evolution of shrimp production and pond bottom in a semi-intensive system
Provedor de dados: 5
Autores: Lemonnier, Hugues; Brizard, Raphael; Mugnier, Chantal; Herlin, Jose.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00354/46558/46369.pdf

Rapport de mesures dans le lagon de Hienghène-Touho - Province Nord - Nouvelle-Calédonie. SPHYNX - Suivi des Paysages HYdrologiques des lagons Nord
Provedor de dados: 5
Autores: Le Gendre, Romain; Soulard, Benoit; Lemonnier, Hugues; Laugier, Thierry; Hubert, Morgane; Desclaux, Terence; Royer, Florence; Le Tesson, Eric; Dumas, Franck; Kayara, Jean-françois.
Ce rapport fait partie du projet de recherche PRESENCE (PRessions sur les Ecosystèmes récifaux et lagonaires de Nouvelle-CalédoniE). L'objectif de ce projet est de mieux appréhender le fonctionnement des lagons de Nouvelle-Calédonie à partir d’observations in-situ, de télédétection et de modélisation hydrodynamique. Ce rapport présente les mesures effectuées sur les lagons de Touho à Pouébo situés sur la côte Est de la Province Nord de Nouvelle-Calédonie, secteur sur lequel les connaissances et observations du fonctionnement hydrodynamique étaient assez parcellaires. Les données seront utilisées par la suite pour mieux appréhender la dynamique de ce grand lagon mais également à des fins de calibration et de validation de modèle...
Tipo: Text
Palavras-chave: Mesures; Hydrologie; Courantologie; Hydrodynamique; Hienghène; Hyehen; Pouébo; Pweevo; Modélisation.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00452/56378/58028.pdf

Spatial and temporal extension of eutrophication associated with shrimp farm wastewater discharges in the New Caledonia lagoon
Provedor de dados: 5
Autores: Thomas, Yoann; Courties, Claude; El Helwe, Yasmin; Herbland, Alain; Lemonnier, Hugues.
Shrimp farming in New Caledonia typically uses a flow-through system with water exchange rates as a tool to maintain optimum hydrological and biological parameters for the crop. Moreover, the effluent shows hydrobiological characteristics (minerals, phytoplankton biomass and organic matter) significantly higher than that of the receiving environment. Separate surveys were carried out in a bay (CH Bay) with a medium-size intensive farm (30 ha) (PO) and in a mangrove-lined creek (TE Creek) near a larger semi-intensive farm (133 ha) (SO). Net loads of nitrogen exported from the semi-intensive farm and the intensive farm amounted to 0.68 and 1.36 kg ha(-1) day(-1), respectively. At CH Bay, discharge effects were spatially limited and clearly restricted to...
Tipo: Text
Palavras-chave: Environmental impact; Shrimp farming; Eutrophication; Flow cytometry; New Caledonia.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12527/9882.pdf

Caractérisation des sédiments des fonds de bassin des différentes fermes aquacoles de Nouvelle- Calédonie : Compilation des fiches techniques publiées de 1998 à 2000
Provedor de dados: 5
Autores: Lemonnier, Hugues.
En 1996, le vieillissement des fonds de bassins aquacoles de crevettes était présenté comme hypothèse explicative de la dégradation des rendements de production sur certains sites d’élevage. Un travail conséquent avait été réalisé à l’époque dont l'objectif était, à partir d'un inventaire des différents sédiments des fermes aquacoles du Territoire, de mettre en évidence une éventuelle évolution de ce sédiment au fil des cycles d'élevage et son influence sur la productivité. L’objet de ce document est de numériser et de compiler les différentes fiches techniques diffusées à l’époque sous forme papier aux aquaculteurs de la filière crevette de Nouvelle-Calédonie.
Tipo: Text
Palavras-chave: Aquaculture; Litopenaeus stylirostris; Durabilité; Sédiment; Envasement; Matière organique; PH; Déchets.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00656/76762/77918.pdf

Combined effect of exposure to ammonia and hypoxia on the blue shrimp Litopenaeus stylirostris survival and physiological response in relation to molt stage
Provedor de dados: 5
Autores: Mugnier, Chantal; Zipper, Etienne; Goarant, Cyrille; Lemonnier, Hugues.
The effect of ambient ammonia, hypoxia and combination of both on survival and the physiological and immunological response of the blue shrimp Litopenaeus stylirostris in relation to molt stage was studied. Shrimp were submitted to 44.0-71.5 mg 1(-1) total ammonia-N corresponding to 2.0 mg 1(-1) unionized ammonia NH3-N and/or to 1.5 mg O-2 1(-1) (4.3 kPa) for 24 hours. Survival was recorded and the molt stages of both dead and surviving shrimp determined. Only shrimp in intermolt and premolt stages were sampled for analysis of haemolymph. Haemolymph was assayed for osmoregulatory capacity (OC), magnesium ion (Mg2+), calcium ion (Ca2+), total proteins, oxyhaemocyanin, lactate, glucose and total haemocyte count (THC).   Low mortalities were recorded for...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4092.pdf

Nutrient and microbial dynamics in eutrophying shrimp ponds affected or unaffected by vibriosis
Provedor de dados: 5
Autores: Lemonnier, Hugues; Courties, Claude; Mugnier, Chantal; Torreton, Jean-pascal; Herbland, Alain.
A field survey was conducted on two intensive shrimp farms using similar technical practices: one (DF) historically affected by a vibriosis, the other (HC) in which the pathogen has been observed although no mortality event has occurred. Because historical data suggest that eutrophication process may directly or indirectly play a role in the disease outbreak, we focussed our research on its dynamics. A higher variability of the phytoplanktonic compartment linked to an imbalance in the molar N:P ratio was observed in farm DF compared to farm HC, implying a modification on the linkage between the bacteria and phytoplankton compartments at DF. The beginning of the mortality outbreak at DF followed a shift from picoto nanophytoplankton. The organic matter...
Tipo: Text
Palavras-chave: Aquaculture; Shrimp; Eutrophication; Ecosystem shift; Phytoplankton; Vibriosis.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00002/11368/8119.pdf

SEARSÉ (volet 1) Signature des eaux des rivières et des estuaires dans le sud-ouest de la Nouvelle-Calédonie
Provedor de dados: 5
Autores: Lemonnier, Hugues; Royer, Florence; Lopez, Etienne; Berne, Stéphanie; Boher, Laura; Coignot, Elise; Desnues, Anne; Dupouy, Cécile; Helly, Maëlle; Gérard, Philippe; Gunkel-grillon, Peggy; Jamet, Léocadie; Lemestre, Monica; Liufau, Félise; Siano, Raffaele; Soulard, Benoit.
De par des mutations économiques, démographiques et sociétales, que connaît à ce jour la Nouvelle-Calédonie, des pressions anthropiques ne cessent de croître sur les milieux littoraux et côtiers. Les rivières sont d’importants vecteurs de transport de sédiments et d’éléments dissous. Ces apports, s’ils sont essentiels pour le fonctionnement des écosystèmes côtiers, peuvent être néfastes en cas d’excès (sels nutritifs, métaux et autres contaminants). Le projet SEARSE a pour objectifs de qualifier et de quantifier les apports des rivières et suivre leur devenir dans les panaches dans le lagon autour du grand Nouméa.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00630/74207/73835.pdf

Evaluación de los parámetros biológicos, fisiológicos, inmunológicos y nutricionales en camarones Litopenaeus stylirostris afectados por vibriosis
Provedor de dados: 5
Autores: Mugnier, Chantal; Justou, Carole; Lemonnier, Hugues; Patrois, Jacques; Ansquer, Dominique; Goarant, Cyrille; Lecoz, Jean-rené.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00354/46555/46366.pdf

Monitoring mangrove forests after aquaculture abandonment using time series of very high spatial resolution satellite images: A case study from the Perancak estuary, Bali, Indonesia
Provedor de dados: 5
Autores: Proisy, Christophe; Viennois, Gaelle; Sidik, Frida; Andayani, Ariani; Enright, James Anthony; Guitet, Stephan; Gusmawati, Niken; Lemonnier, Hugues; Muthusankar, Gowrappan; Olagoke, Adewole; Prosperi, Juliana; Rahmania, Rinny; Ricout, Anais; Soulard, Benoit; Suhardjono,.
Revegetation of abandoned aquaculture regions should be a priority for any integrated coastal zone management (ICZM). This paper examines the potential of a matchless time series of 20 very high spatial resolution (VHSR) optical satellite images acquired for mapping trends in the evolution of mangrove forests from 2001 to 2015 in an estuary fragmented into aquaculture ponds. Evolution of mangrove extent was quantified through robust multitemporal analysis based on supervised image classification. Results indicated that mangroves are expanding inside and outside ponds and over pond dykes. However, the yearly expansion rate of vegetation cover greatly varied between replanted ponds. Ground truthing showed that only Rhizophora species had been planted,...
Tipo: Text
Palavras-chave: Mangroves; Rehabilitation; Rhizophora plantations; Shrimp ponds; Remote sensing; ICZM.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00389/50088/52252.pdf

TREMOR ( Volet 1) Transfert des éléments traces métalliques par la matière organique dissoute colorée
Provedor de dados: 5
Autores: Dupouy, Cécile; Juillot, Farid; Lemonnier, Hugues; Mounier, Stéphane; Boher, Laura; Bessard, Marie; Jamet, Léocadie; Gérard, Philippe; Gunkel-grillon, Peggy.
La particularité des sols côtiers de Nouvelle-Calédonie est d’être essentiellement formés de latérites, exploitées depuis des décennies pour leurs teneurs en éléments traces métalliques (ETM) tels que le nickel, le chrome, le cobalt ou le manganèse. De par sa forte productivité en matière organique, la mangrove constitue un réservoir important de matière organique dissoute (MOD) qui peut être transportée vers l’Océan sur de grandes distances. Les observations menées soulèvent la question du rôle puit/source que joue la mangrove vis-à-vis de la dynamique des ETM à l’interface Terre-Mer à l’aval des massifs miniers de Nouvelle-Calédonie. Le projet TREMOR a ainsi, pour objectif d’apporter des éléments de réponses à cette question en s’appuyant sur les...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00630/74206/73834.pdf

Caractérisation des sédiments des fonds de bassin des différentes fermes aquacoles de Nouvelle-Calédonie
Provedor de dados: 5
Autores: Lemonnier, Hugues; Brizard, Raphael.
Le but de celle fiche biotechnique est de présenter l'ensemble des données concernant l'étude de la caractérisation des sédiments aquacoles. Ce travail! a été mené pendant l'année 1996 et a abouti à un inventaire des sédiments sur l 'ensemble des sites de production du Territoire. Il s'agit d'un premier rapport descriptif permettant une première présentation des principaux résultats aux producteurs du Territoire, un second rapport comprenant les interprétations et les conclusions est actuellement en cours de rédaction.
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00274/38545/37066.pdf

Sediment accumulation in earthen shrimp ponds
Provedor de dados: 5
Autores: Lemonnier, Hugues; Brizard, Raphael; Herlin, Jose; Mugnier, Chantal.
Tipo: Text
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00354/46556/46367.pdf

Feasibility of polyculture of blue shrimp Litopenaeus stylirostris and goldlined rabbitfish Siganus lineatus in a mesocosm system
Provedor de dados: 5
Autores: Luong, Trung Cong; Hochard, Sebastien; Royer, Florence; Lemonnier, Hugues; Letourneur, Yves.
The study was conducted to (1) estimate the effects of polyculture of blue shrimp Litopenaeus stylirostris with goldlined rabbitfish Siganus lineatus on production, environmental quality and water and sediment metabolism and (2) to determine if blue shrimp and goldlined rabbitfish polyculture is possible. The experiment was carried out for 12 weeks in a mesocosm system that consisted of 12 circular outdoor mesocosm fiberglass tanks (1.7 m2, 1275 L water volume). Shrimp (2.9 g) were randomly stocked at density of 15 shrimp.m− 2 without rabbitfish (control), with rabbitfish (25.5 g) at low density (1.2 fish.m− 2) (LDRB) and high density (2.4 fish.m− 2) (HDRB). Results indicated that goldlined rabbitfish S. lineatus did not affect shrimp growth performance....
Tipo: Text
Palavras-chave: Polyculture; Penaeidae; Siganidae; Integrated production; Environment; Pond ecology.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00198/30968/29344.pdf

Dynamics of phytoplankton communities in eutrophying tropical shrimp ponds affected by vibriosis
Provedor de dados: 5
Autores: Lemonnier, Hugues; Lantoine, Francois; Courties, Claude; Guillebault, Delphine; Nezan, Elisabeth; Chomerat, Nicolas; Escoubeyrou, Karine; Galinie, Christian; Blockmans, Bernard; Laugier, Thierry.
Tropical shrimp aquaculture systems in New Caledonia regularly face major crises resulting from outbreaks of Vibrio infections. Ponds are highly dynamic and challenging environments and display a wide range of trophic conditions. In farms affected by vibriosis, phytoplankton biomass and composition are highly variable. These conditions may promote the development of harmful algae increasing shrimp susceptibility to bacterial infections. Phytoplankton compartment before and during mortality outbreaks was monitored at a shrimp farm that has been regularly and highly impacted by these diseases. Combining information from flow cytometry, microscopy, pigment and phylogenetic analysis, the presence of Picocyanobacteria, Prasinophyceae and Diatomophyceae were...
Tipo: Text
Palavras-chave: Tropical aquaculture pond; Litopenaeus stylirostris; Vibriosis; Eutrophication; Phytoplankton; Harmful algae.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00343/45411/44986.pdf

Eutrophication in a tropical pond: Understanding the bacterioplankton and phytoplankton dynamics during a vibriosis outbreak using flow cytometric analyses
Provedor de dados: 5
Autores: Lucas, Ronan; Courties, C.; Herbland, Alain; Goulletquer, Philippe; Marteau, Anne-laure; Lemonnier, Hugues.
In tropical shrimp ponds, the increasing of feed input, concomitantly with the stocking shrimp biomass, induces an eutrophication of the ecosystem. Although difficult to maintain, its stability is required to guarantee the success of the culture. A 110-day period of phytoplankton and bacterioplankton stock and dynamics in an earthen pond (1.2 ha area, 1 m depth) was monitored using flow cytometry to provide baseline information on community characteristics and ecosystem instability. Seven autotrophic cell types were identified over the whole sampling period. Prokaryotic cells included Synechococcus sp., a group named UNK which presented an atypical new flow cytometric signature and picoeukaryotes (PEUK). Nanophytoplankton cells were represented by 4...
Tipo: Text
Palavras-chave: Tropical shrimp aquaculture; Ecosystem shift; Phytoplankton; Bacterioplankton; Vibrio; Flow cytometry.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00029/14068/11312.pdf

Biological, physiological, immunological and nutritional assessment of farm-reared Litopenaeus stylirostris shrimp affected or unaffected by vibriosis
Provedor de dados: 5
Autores: Mugnier, Chantal; Justou, Carole; Lemonnier, Hugues; Patrois, Jacques; Ansquer, Dominique; Goarant, Cyrille; Le Coz, Jean-rene.
Shrimp aquaculture in New Caledonia is subject to seasonal mortalities during grow-out due to highly virulent Vibrio nigripulchritudo (Vn). To understand the mechanisms affecting shrimp resistance and leading to significant mortality, a shrimp ecophysiology and immunology survey was conducted on two farms, the first considered as a "control" farm (HC), the second affected by the disease (DF). Mortality observed during the survey at DF started 50 days after stocking and was typical of this disease. The main observations regarding shrimp were: (a) growth was not affected by the disease and was faster in the DF than in the HC pond; (b) disease did not affect one sex more than the other, or a specific part of the population in terms of weight; (c) the physical...
Tipo: Text
Palavras-chave: Vibriosis; Penaeid shrimp; Field survey; Physiology; Immunology; Nutritional status.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00176/28764/27567.pdf

Vers une modélisation déterministe des écoulements de surface en Nouvelle-Calédonie. Implémentation du code GR4H sur quatre bassins versants du Grand Nouméa
Provedor de dados: 5
Autores: Desclaux, Terence; Pischedda, Marine; Lemonnier, Hugues; Soulard, Benoit; Le Gendre, Romain.
Ce rapport fait suite au stage de Marine Pischedda (Master 2 La Rochelle) réalisé au sein de l’unité de recherche "Lagons, Ecosystèmes et Aquaculture Durable en Nouvelle-Calédonie" (LEAD/NC) de l’Ifremer entre février et juillet 2016. Cette étude a été conduite sur quatre bassins versants du Grand Nouméa : la Coulée, la Dumbéa Est, la Dumbéa Nord et la Couvelée. L’objectif principal était de démontrer la pertinence de l’utilisation de modèle pluie-débit au pas de temps horaire (GR4H en l’occurrence) sur les bassins versants calédoniens. Le cadre plus général de ce travail était d’aboutir à une représentation affinée du continuum terre-mer par le couplage des modèles GR4H et MARS3D développés pour simuler la circulation côtière. Les périodes d’étiages ayant...
Tipo: Text
Palavras-chave: Continuum Terre-Lagon; Nouvelle-Calédonie; Rivières; GR4H; Bassins versants; Grand Nouméa; Modélisation; Débits; Land-lagoon continuum; New Caledonia; River; GR4H; Watershed; Nouméa; Model; River Flow.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00388/49969/50545.pdf

Effets des renouvellements en eau sur l'écosystème des bassins d'élevages semi-intensifs de crevettes en Nouvelle-Calédonie durant la saison froide
Provedor de dados: 5
Autores: Lemonnier, Hugues; Brizard, Raphael.
Une expérience a été réalisée en conditions hivernales dans six bassins de terre pour déterminer l'effet des taux de renouvellement sur la production de crevettes Penaeus stylirostris, sur les caractéristiques de l'eau et du sédiment des enceintes d'élevage. Les budgets d'azote ont été établis en prenant en compte les différentes formes azotées dans l'eau, dans le sédiment, dans l'aliment et dans les crevettes. Un épisode de mortalité a été obserVé en cours d'élevage et peut être attribué à une epizootie dénommée "syndrome 93». Ce dernier était concomitant à une phase de croissance phytoplantonique et a été d'autant plus important que la biomasse phytoplanctonique dans le bassin d'élevage était élevée. Bien qu'une dilution importante de la colonne d'eau se...
Tipo: Text
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00079/19066/16661.pdf

Assimilation of shrimp farm sediment by     Holothuria scabra     : a coupled fatty acid and stable isotope approach
Provedor de dados: 5
Autores: Mathieu-resuge, Margaux; Le Grand, Fabienne; Schaal, Gauthier; Kraffe, Edouard; Lorrain, Anne; Letourneur, Yves; Lemonnier, Hugues; Benoît, Julie; Hochard, Sébastien.
Deposit-feeding sea cucumbers are efficient nutrient recyclers and have the potential to contribute to the limitation of organic matter load in polyculture or integrated aquaculture systems. Assessing how they assimilate organic matter originating from other farmed species is therefore important for the development of such multi-species farming systems. Here, a coupled stable isotope − fatty acid approach was used to characterize the assimilation of organic matter from shrimp (Penaeus stylirostris) farming by Holothuria scabra in an experimental culture system. H. scabra were reared in mesocosms on shrimp farming-originating sediment with and without additional food sources (maize and fish meals). Although fatty acid results did indicate that...
Tipo: Text
Palavras-chave: Fatty acids; Stable isotopes; Rotational co-culture; Shrimp-farming; Holothurid.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00624/73589/73023.pdf

Physiological response of the blue shrimp Litopenaeus stylirostris to short-term confinement on a pond bottom
Provedor de dados: 5
Autores: Mugnier, Chantal; Lemonnier, Hugues; Legrand, Alexandre.
The blue shrimp Litopenaeus stylirostris was exposed to pond sediment for 48 h and its physiological response was studied in relation to molt stage. Shrimp were maintained in cages within a semi-intensive pond after 4 months of rearing. Hypoosmoregulatory capacity (hypo-OC), magnesium ions (Mg ions), glucose, total proteins and oxyhaemocyanin were assayed in haemolymph. An increase of 370% to 500% in Mg ions concentration and 200% to 266% in glucose concentration, and a decrease in hypo-OC in shrimp maintained close to the centre of the pond indicated a short-term stress response in all molt stages. Indicators of water and sediment pore water quality were within normal operating limits, however this area was characterized by high water content and...
Tipo: Text
Palavras-chave: Stress; Pond bottom; Penaeid shrimp; Molt stage; Haemolymph constituents; Litopenaeus stylirostris.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1675.pdf

Influence of sediment characteristics on shrimp physiology: pH as principal effect
Provedor de dados: 5
Autores: Lemonnier, Hugues; Bernard, E; Boglio, E; Goarant, Cyrille; Cochard, Jean-claude.
Penaeid shrimp reared in earthen ponds are exposed to sediment, which can, in some instances, induce a stress. In seawater, the osmoregulatory capacity (hyporegulation) is a useful tool to compare the physiological condition of shrimp exposed to various stressors. By keeping some shrimp in cages at different locations of a single pond heterogeneous in terms of sediment quality, it was possible, using osmotic pressure (OP), to identify some locations where the stress was maximum and some others where it was minimum. Simultaneously, sediment samples were taken and analysed in order to evaluate some physico-chemical parameters that could be related to the stress observed in the shrimps kept in the cages. This approach allowed to show a significant positive...
Tipo: Text
Palavras-chave: PH; Sediments; Stress; Osmotic pressure; Shrimp physiology.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-1866.pdf

Effet des conditions environnementales sur le développement des pathologies à Vibrio dans les élevages de crevettes en Nouvelle-Calédonie
Provedor de dados: 5
Autores: Lemonnier, Hugues.
Shrimp aquaculture in New Caledonia is a developing industry, exclusively based on the species Litopenaeus stylirostris. However, it is subject to mortalities during grow out as observed all over the world. Since 1993, shrimp reared during the cold period are affected by a disease named "syndrome 93". As a consequence, the whole industry has become seasonal and produces essentially during the warm season. The climatic conditions during the periods of transition between the two main seasons could be responsible for an environmental stress and the origin reason for mortality outbreaks. Stocking density is the main risk factor. It increases the probability of the appearance and development of the epizooty in the pond. The "Summer Syndrome", a septicemic...
Tipo: Text
Palavras-chave: New Caledonia; Risk factors; Environmental stress; Vibriosis; Epizooty; Pond management; Eutrophication; Pond health; Shrimp; Litopenaeus stylirostris; Peneids; Aquaculture; Nouvelle  Calédonie; Facteur de risque; Stress environnemental; Vibrioses; Pratiques d'élevage; Eutrophisation; Santé de l'écosystème bassin; Crevette; Litopenaeus stylirostris; Pénéides; Aquacultre.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-2643.pdf

Expériences sur l'influence des sédiments du bassin d'élevage sur la physiologie de Penaeus stylirostris. Rapport des travaux menés du 26 novembre au 7 décembre 1955 à la Station Saint Vincent
Provedor de dados: 5
Autores: Cochard, Jean-claude; Goarant, Cyrille; Boglio, Eric; Lemonnier, Hugues.
The influence of the soil quality of culture pond on the physiological state of Penaeus stylirostris reared in earthen shrimp pond in New Caledonia was investigated by the measurement of the osmoregulatory capacity and magnesium hemolymph concentration of samples of 20 of these shrimp captured in the pond and maintained for 24 or 48h in cages laid on the bottom. A first experiment was affected by the occurrence of a pathology caused by Vibrio penaeicida probably due to initial handling stress. The second experiment showed that the osmoregulatory capacity is depresssed as a function of the soil quality : the more it is reduced the more the depression is important.
Tipo: Text
Palavras-chave: Crevettes; Penaeus; P. stylirostris; Nouvelle Calédonie; Capacité osmorégulatrice; Stress; Sédiment; Shrimp culture; Penaeus; P. stylirostris; New Caledonia; Osmoregulatory capacity; Stess; Soil.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00426/53779/54664.pdf

Les flux de matières dans les écosystèmes "marais aquacoles". Impact des densités d'élevage sur les bilans de matériel particulaire et dissous
Provedor de dados: 5
Autores: Lemonnier, Hugues.
Les marais maritimes sont des espaces littoraux de niveau inférieur à celui des hautes mers de vive eau qui ont été structurés par l'homme dans les infrastructures côtières abritées (slikke, schorre). Ils représentent au total une superficie de 27000 hectares dans les régions Pays de Loire, Poitou-Charentes et Aquitaine dont 13 % sont endigués et en exploitation (Manaud et al, 1992). Dans le cadre de la revalorisation du marais, des activités aquacoles se sont développées au cours de ces quinze dernières années : la vénériculture, la pénéiculture et la pisciculture semi-intensive du bar (Dicentrarchus labrax) ou la daurade royale (Sparus aurata). Cette aquaculture nouvelle s'étend actuellement sur 300 hectares et aura produit 150 tonnes de poissons en...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00436/54773/56225.pdf

Suitability of a lumped rainfall–runoff model for flashy tropical watersheds in New Caledonia
Provedor de dados: 5
Autores: Desclaux, Terence; Lemonnier, Hugues; Genthon, Pierre; Soulard, Benoit; Le Gendre, Romain.
The GR4H lumped hourly rainfall–runoff model was assessed for its integration in a ridge-to-reef modelling framework. Particular attention was paid to rainfall representation, robustness of parameter estimates and ability to reproduce main runoff features. The study was conducted in four tropical mountainous watersheds in New Caledonia, exposed to intense rainfall events, large annual climatic variations triggered by El Niño oscillation, and wildfires. The inverse distance and elevation weighting algorithm outperformed other classical rainfall interpolation methods under data-limited conditions. The time-span of data needed for robust calibration was site-specific and varied from 6–7 years to 10 years, which may be linked to El Niño events and to...
Tipo: Text
Palavras-chave: Hydrological model; Ridge-to-reef; GR4H; Rainfall-runoff model; Integrated modelling; New Caledonia; Lagoon; Wildfire.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00455/56681/58466.pdf

Effect of water exchange on effluent and sediment characteristics and on partial nitrogen budget in semi-intensive shrimp ponds in New Caledonia
Provedor de dados: 5
Autores: Lemonnier, Hugues; Faninoz, Sebastien.
An experiment was conducted in six earthen ponds with 20 shrimps m(-2) Litopenaeus stylirostris (Stimpson) during the warm season in New Caledonia to study the dynamics of wastes in relation with water exchange rate (WER). The nitrogen budget was established, taking into account the different forms of nitrogen in the water, sediment, feed and shrimp. Data from a wide range of treatments applied in unreplicated ponds were treated using regression analysis to establish the relationship between WER and partial nitrogen budget, sediment characteristics and shrimp performance. To compare effluent quality between treatments during the season, data were analysed using the non-parametric sign test. The water outflow was characterized by a decrease in the...
Tipo: Text
Palavras-chave: New Caledonia; Nitrogen; Water exchange; Shrimp; Sediment quality; Effluent.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1811.pdf

"Summer syndrome" in Litopenaeus stylirostris grow out ponds in New Caledonia: zootechnical and environmental factors
Provedor de dados: 5
Autores: Lemonnier, Hugues; Herbland, Alain; Salery, Lucas; Soulard, Benoit.
The "Summer Syndrome", a septicemic vibriosis caused by Vibrio nigripulchritudo, is responsible for one of the two main seasonal mortalities which affect shrimp aquaculture in New Caledonia. It was identified for the first time in December 1997 in an intensive shrimp farm (called farm DF) and has been enzootic ever since. The "Summer syndrome" affects shrimp during warm-season growout. Although the geographic area concerned is limited, it is a potential threat for the industry in that the disease could spread. Analysis of grow out data from 1991 to 2002 in this farm was carried out in order to characterize the disease and the environmental conditions in relation to mortality. Results of farm DF were compared to data from farms not affected by the disease...
Tipo: Text
Palavras-chave: Eutrophication; Pond management; Vibriosis; Shrimp culture ponds.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1868.pdf

Response of phytoplankton to organic enrichment and shrimp activity in tropical aquaculture ponds: a mesocosm study
Provedor de dados: 5
Autores: Lemonnier, Hugues; Hochard, Sebastien; Nakagawa, Kento; Courties, Claude; Rodier, Martine.
We conducted a mesocosm study to investigate the combined effect of organic enrichment and sediment resuspension by shrimp on phytoplankton communities in shrimp aquaculture ponds. Hence, the factorial design included two factors, i.e., (i) shrimp density with a concomitant increase of feed input resulting in organic enrichment and (ii) with/without access of shrimp to the sediments. Increasing feed input in the system raised the eutrophication state of the environment characterized by an increase in phytoplankton biomass. Bioturbation enhanced (i) mineralization of organic matter via the microbial loop, resulting in faster nutrient recycling, (ii) an increase of primary production, and (iii) buffering capacity against eutrophication consequences. The...
Tipo: Text
Palavras-chave: Aquaculture; Litopenaeus stylirostris; Phytoplankton communities; Eutrophication; Bioturbation.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00392/50364/51066.pdf

Surveying shrimp aquaculture pond activity using multitemporal VHSR satellite images - case study from the Perancak estuary, Bali, Indonesia
Provedor de dados: 5
Autores: Gusmawati, Niken; Soulard, Benoit; Selmaoui-folcher, Nazha; Proisy, Christophe; Mustafa, Akhmad; Le Gendre, Romain; Laugier, Thierry; Lemonnier, Hugues.
From the 1980's, Indonesian shrimp production has continuously increased through a large expansion of cultured areas and an intensification of the production. As consequences of diseases and environmental degradations linked to this development, there are currently 250,000 ha of abandoned ponds in Indonesia. To implement effective procedure to undertake appropriate aquaculture ecosystem assessment and monitoring, an integrated indicator based on four criteria using very high spatial optical satellite images, has been developed to discriminate active from abandoned ponds. These criteria were: presence of water, aerator, feeding bridge and vegetation. This indicator has then been applied to the Perancak estuary, a production area in decline, to highlight the...
Tipo: Text
Palavras-chave: Aquaculture; Abandoned ponds; VHSR images; Indicator; Supervised classification; Spatial and temporal survey.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00392/50343/51081.pdf

Holothurie : Lien entre performances de production et de bioremédiation dans le contexte de la crevetticulture en Nouvelle-Calédonie. Projet Hobical
Provedor de dados: 5
Autores: Hochard, Sebastien; Ducrocq, Manuel; Lemonnier, Hugues; Royer, Florence; Hubert, Morgane; Michaut, Henri; Verge, Raphael; Letourneur, Yves; Lorrain, Anne; Mathieu-resuge, Margaux; Schaal, Gauthier; Kraffe, Edouard; Legrand, Fabienne; Burgy, Laurent; Kuhn, John; Kuhn, Sandra; Queffelec, Laurent; Millot, Maxime; Le Rohellec, Julien; Benoit, Julie; Vanhuysse, Charles.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00347/45798/45444.pdf

Devenir des apports terrigènes autour du Grand Nouméa (Décembre 2016 - Avril 2017)
Provedor de dados: 5
Autores: Desclaux, Terence; Hubert, Clarisse; Le Tesson, Eric; Lemonnier, Hugues; Petton, Sebastien; Royer, Florence; Soulard, Benoit; Schohn, Thomas; Le Gendre, Romain.
Dans l’objectif de mieux caractériser le devenir en mer des apports terrigènes autour de la ville de Nouméa, Nouvelle-Calédonie, notamment suite au passage de dépressions et cyclones tropicaux, différents réseaux d’observation routiniers (GOPS, Météo-France, DAVAR) ont été complétés par l’installation d’instruments au niveau des exutoires marins de la Dumbéa et la Coulée, et par la réalisation répétée de profils hydrologiques (CTD) sur la zone côtière d’intérêt. L’objectif de ce rapport est de restituer et commenter les observations collectées. Le contexte météo-océanique et les observations réalisées sont d’abord exposés sur l’ensemble de la période étudiée, qui court du 1er décembre 2016 au 30 avril 2017. Les conséquences du passage du cyclone Cook sur...
Tipo: Text
Palavras-chave: Apports terrigènes; Lagon; Campagne de mesure; Panache; Rivière; Cyclone; Dépression tropicale; Grand Nouméa; Nouvelle-Calédonie; Physico chimie.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00471/58315/60865.pdf

Effects of blue shrimp     Litopenaeus stylirostris     and goldlined rabbitfish     Siganus lineatus     in mono- and polyculture on production and environmental conditions
Provedor de dados: 5
Autores: Trung Cong, Luong; Lemonnier, Hugues; Hochard, Sebastien; Royer, Florence; Letourneur, Yves.
This study was conducted to compare the effects of shrimp and rabbitfish in mono- and polyculture stocked at high biomass on production and environmental conditions in a mesocosm system. Shrimp (14 g) and/or rabbitfish (19 g) were stocked in four treatments with different density but with the same total biomass (236 g m−2), including shrimp monoculture (SM) (17 shrimp m−2), shrimp–fish polyculture (SF) (11 shrimp and 4 rabbitfish m−2), fish–shrimp polyculture (FS) (6 shrimp and 8 rabbitfish m−2) and fish monoculture (FM) (12 rabbitfish m−2). After 10 weeks of experiment, shrimp survival and biomass were low in the treatments where shrimp were dominant (SM, SF), while rabbitfish survival and biomass were high in all the treatments. Shrimp mortality was...
Tipo: Text
Palavras-chave: Polyculture; Penaeidae; Siganidae; Integrated production; Carrying capacity; Pond ecology.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00355/46606/46468.pdf

Phénomène des branchies orange dans les élevages de crevettes en Nouvelle-Calédonie
Provedor de dados: 5
Autores: Lemonnier, Hugues; Barri, Kiam; Pham, Dominique; Wabete, Nelly; Boulo, Viviane; Lignot, Jean-herve; Royer, Florence; Hubert, Morgane; Blockmans, Bernard; Pierrot, Thomas; Laugier, Thierry; Tostin, Nathalie.
L'aquaculture est une activité importante du paysage économique de la Nouvelle-Calédonie., La crevette Bleue du Pacifique, Litopenaeus stylirostris est aujourd’hui l’espèce cible, élevée en semi-intensif, dans des bassins de terre de 4 à 10 hectares. Une coloration orange prononcée au niveau des branchies, comparable à celle observée suite à un stress hypoxique alors qu’aucun déficit en oxygène n’est constaté, est apparue récemment engendrant une décote du produit à la vente et donc un risque économique supplémentaire pour cette filière déjà fragilisée par des mortalités à vibrioses. Le phénomène se déclare à un poids moyen des animaux compris entre 10 et 18 g pour une durée moyenne d’élevage de 70 jours. L'intensité de la couleur évolue avec le stade de...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00248/35909/34462.pdf

Impact de la crevetticulture calédonienne sur l'environnement : état des lieux, recherche de traceurs des effluents et définition d'un programme de recherche pluriannuel
Provedor de dados: 5
Autores: Lemonnier, Hugues; Thomas, Yoann; Legrand, Alexandre; Martin, Jean-louis; Herbland, Alain.
In the booming context of shrimp culture in French Caledonia, some research actions need to be considered in order (i) to make sure this production will not impact the quality and biodiversity of the coastal environment it is contingent upon (ii) for the field to highlight, based on objective bases, its good "environmental image", for an efficient commercialization of its products. In the framework of the MOM project, a number of actions have been carried out: Action 1: A bibliographical synthesis of the impact of shrimp culture on coastal environment has been conducted, taking into account the works carried out throughout the world and in French Caledonia in order to draw the main issues the Territory will have to deal with. It seems necessary to start...
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6593.pdf

Study seeks candidates for blue shrimp polyculture in New Caledonia
Provedor de dados: 5
Autores: Luong, Cong Trung; Hochard, Sebastien; Royer, Florence; Lemonnier, Hugues; Letourneur, Yves.
Seasonal pathologies reduce the profitability and sustainability of the shrimp-farming industry in New Caledonia. A study was therefore conducted to estimate the effects of polyculture of blue shrimp with goldline rabbitfish or mullet on production performance and environmental quality. The fish did not affect shrimp production, and the combined shrimp/fish yields were significantly greater than the yield from shrimp monoculture. Changes in environmental quality in all treatments were few and minor throughout the culture period.
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00354/46554/46365.pdf

Sediment quality affects shrimp physiology in New Caledonia research
Provedor de dados: 5
Autores: Lemonnier, Hugues; Bernard, Eric; Boglio, Eric; Goarant, Cyrille; Cochard, Jean-claude.
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00354/46557/46368.pdf

Projet Déduction 2007-2010. Bilan par action et annexes
Provedor de dados: 5
Autores: Beliaeff, Benoit; Laugier, Thierry; Chim, Liet; Coatanea, Denis; Della Patrona, Luc; Goyard, Emmanuel; Herlin, Jose; Labreuche, Yannick; Lemaire, Pierrette; Lemonnier, Hugues; Morvan, Patrice; Patrois, Jacques; Peignon, Jean-marie; Pham, Dominique; Soulard, Benoit; Wabete, Nelly; Walling, Emilie; Ansquer, Dominique; Castex, Mathieu; Lucas, Ronan; Reynaud, Yann; Ifremer, LEAD-NC,.
Ce document constitue le bilan détaillé des résultats du projet DEDUCTION (2007-2010) , action par action. Le projet DEDUCTION "DEveloppement DUrable de la Crevetticulture, Traitement de l’Information et Observatoire du système en Nouvelle-Calédonie" est un projet de recherche et de développement en soutien à la filière crevetticole néo-calédonienne. C'est un programme très horizontal et pluridisciplinaire en poursuivant et développant les ouvertures scientifiques, techniques et thématiques établies à la faveur de DESANS. Son ossature s’articule autour de 4 actions : 3 actions de recherche et une action transversale devant faciliter les interfaces entre la recherche et sa finalité, entre les chercheurs et les partenaires locaux (GFA, Provinces,...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00199/31006/35663.pdf

Evaluation de l’impact de l’aquaculture de crevettes sur les mangroves de Nouvelle-Calédonie
Provedor de dados: 5
Autores: Virly, Sabrina; Buisson, Damien; Clough, Barry; Lemonnier, Hugues; Richer De Forges, Bertrand.
L’aquaculture de crevettes Litopeneus stylirostris, qui est apparue en 1970 en Nouvelle-Calédonie, est devenue une activité économique importante aujourd’hui avec 17 fermes en production et un tonnage de 2000 tonnes en 2004. Situées sur des zones d’arrière mangrove, les fermes exercent une pression sur l’environnement limitrophe, notamment les mangroves. Le rejet des eaux usées des fermes aquacoles dans le lagon semble constituer le principal impact sur l’environnement côtier.  La présente étude qui a été lancée dans le cadre du programme ZoNéCo a pour principal objectif l’évaluation d’éventuels impacts de l’aquaculture sur les mangroves de Nouvelle-Calédonie. Elle s’attache : - d’une part à étudier l’évolution des différentes strates végétales d’une...
Tipo: Text
Ano: 2005
URL: http://archimer.ifremer.fr/doc/00198/30913/29284.pdf

Temporal variability of benthic-pelagic coupling in shallow enclosed environment: A case study with eutrophying shrimp ponds
Provedor de dados: 5
Autores: Hochard, Sébastien; Royer, Florence; Hubert, Morgane; Lemonnier, Hugues.
The evolution of benthic pelagic coupling was followed in two semi-intensive shrimp ponds in New Caledonia, with a special emphasis on the role of microphytobenthos (MPB). Three distinct periods could be identified. During the first period, MPB activity led to relative decoupling between the water column and the sediment, both compartments being autotrophic with low nutrients exchanges. During the second period, the sediment operated at the edge of a functional switch between autotrophy and heterotrophy. The amplitude of nutrient fluxes depended of the pool considered (DIN, DIP) and showed light dark variation. In the last period, sediment switched to heterotrophy with the establishment of benthic-pelagic coupling concomitantly to a massive sediment...
Tipo: Text
Palavras-chave: Tropical aquaculture; Shrimp; Eutrophication; Benthic-pelagic coupling; Microphytobenthos; Bioturbation.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00485/59681/62754.pdf