Consulta: subjectFacets:"Macrophytes"
Registros recuperados: 39
Data/hora: 07/06/2024 02:30:13

Региональные аспекты разнообразия флоры черноморских макрофитов
Provedor de dados: 13
Autores: Мильчакова, Н. А.
Выполнена таксономическая ревизия флоры черноморских макрофитов. Показано изменение регионального видового разнообразия флоры зелёных, бурых и красных водорослей, обсуждаются причины и последствия этой трансформации для экосистемы Чёрного моря. В дополнение к опубликованному ранее, приведён список новых для флоры видов красных водорослей, а также видов, считающихся, по мнению автора, вселенцами. Анализируются экологические и биологические факторы, обуславливающие распространение новых видов в бассейне Чёрного моря. Выполнен прогноз смены фитогеографической структуры флоры при гидрологических и климатических изменениях, в том числе глобальных.
Tipo: Journal Contribution
Palavras-chave: Флора; Макрофиты; Региональное разнообразие; Вселенцы; Чёрное море; Flora; Macrophytes; Regional diversity; Alien species; Black Sea Flora Flora http://aims.fao.org/aos/agrovoc/c_2983.
Ano: 2007
URL: http://repository.ibss.org.ua/dspace/handle/99011/323

Современное состояние запасов макрофитобентоса в прибрежной зоне Тарханкутского полуострова (Чёрное море)
Provedor de dados: 13
Autores: Мильчакова, Н. А.; Миронова, Н. В.; Рябогина, В. Г.
General stock of macrophytes in the water area of Tarkhankut peninsula is estimated in 37000 t. There is more than 25200 t belong to Cystoseira and 500 t - Phyllophora crispa (68% and 1,3% corr.). According  estimated data 15,6 t macrophytes grow on 1 ga coastal zone, between it 10,7 t Cystoseira and 0,2 t Phyllophora.
Tipo: Book Section
Palavras-chave: Macrophytes; Resources; Cystoseira; Phyllophora.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1859

Флористическая характеристика морских акваторий обьектов природно-заповедного фонда региона Севастополя (Черное море)
Provedor de dados: 13
Autores: Мильчакова, Н. А.; Рябогина, В. Г.
Впервые приведены списки видов макрофитов морских акваторий 6 объектов природно-заповедного фонда региона Севастополя. Общее количество видов составляет 137, из которых 33 принадлежат зеленым водорослям, 37 – бурым, 63 - красным и 4 вида - морским травам. В охраняемых акваториях произрастают три вида водорослей, внесенных в Красную книгу Украины, и один вид - эндемик Черного моря.
Tipo: Journal Contribution
Palavras-chave: Макрофиты; Природно-заповедные объекты; Регион Севастополя; Черное море; Macrophytes; Marine reserves; The Black Sea; Sevastopol's  region.
Ano: 2002
URL: http://repository.ibss.org.ua/dspace/handle/99011/383

Современное состояние промысловых биоресурсов Чёрного моря
Provedor de dados: 13
Autores: Загородняя, Ю. Я.; Сергеева, Н. Г.; Болтачёв, А. Р.; Финенко, З. З.; Еремеев, В. Н.; Мильчакова, Н. А.; Гаевская, А. В.; Гришин, А. Н.; Зуев, Г. В.; Шульман, Г. Е.; Миронов, О. Г.
Обобщены  результаты ретроспективного анализа  всех доступных материалов и собственных  многолетних исследований промысловых  биоресурсов Чёрного моря. Показано, что в последние годы, по сравнению с концом 80 – первой половиной 90-х годов ХХ столетия состояние ресурсной базы улучшается. Запасы черноморской и азовской хамсы восстанавливаются до уровня 1970-х годов. На уровне выше среднемноголетнего в последнее десятилетие сохраняется запас шпрота. В удовлетворительном состоянии находятся запасы пиленгаса и мерланга. Вызывает тревогу состояние запаса камбалы-калкана, которая находится на грани уничтожения. Выявлены существенные изменения в структуре бентосных биоценозов в результате распространения экологически пластичных моллюсков-вселенцев (Rapana venosa и...
Tipo: Journal Contribution
Palavras-chave: Биоресурсы; Промысловые виды рыб; Макрофиты; Зообентос; Фито- и зоопланктон; Чёрное море; Bioresource; Commercial fish; Macrophytes; Zoobenthos; Phyto- and zooplankton; Black Sea.
Ano: 2009
URL: http://repository.ibss.org.ua/dspace/handle/99011/1191

Habitat complexity does not influence prey consumption in an experimental three-level trophic chain
Provedor de dados: 76
Autores: Granzotti,Rafaela V.; Muniz,Carolina M.; Gomes,Luiz C.
ABSTRACT Habitat complexity influences species diversity and regulates trophic interactions, mostly by increasing resource partitioning within habitats and providing refuge for prey. The influence of habitat complexity on more than two trophic levels is not well understood, mainly because behavioral modifications of prey and predator may influence the outcome of trophic interactions. Thus, we conducted a two-factor experiment with a three-level trophic chain: a piscivorous fish [Hoplerythrinus unitaeniatus (Spix &amp; Agassiz 1829)], an invertivorous fish (Moenkhausia forestii Benine, Mariguela &amp; C. de Oliveira, 2009) and an aquatic macroinvertebrate (Chironomidae larvae). We measured prey consumption in low, intermediate and high habitat complexity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrophytes; Predator-prey interactions; Piscivory; Foraging behavior.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100228

Enregistrement d'images vidéo géoréférencées par caméra remorquée dans les lagunes de Méditerranée. Expérimentations pilotes dans les étangs de Leucate (Juin 2004), de Thau et d'Ingril (avril 2005).
Provedor de dados: 5
Autores: Oheix, Jocelyne.
Dans le cadre du Réseau de Suivi Lagunaire, des images vidéo géoréférencées par caméra tractée ont été réalisées dans trois lagunes de Méditerranée : Thau, Leucate et Ingril avec la collaboration de l'équipe d'Ifremer/Toulon qui assure le développement technique de l'outil d'acquisition d'images dans le cadre du projet « Prisme ». L'objectif est de déterminer la faisabilité technique en lagune puis d'optimiser l'exploitation des données. Ce rapport présente les résultats de la mise en œuvre de la caméra tractée, du rejeu des images et de la représentation cartographique des données sous SIG. Ces expérimentations ont permis de définir une typologie d'utilisation de la vidéo tractée en lagune: - Recouvrement végétal, - Cartographie d'herbier, - Grand type de...
Tipo: Text
Palavras-chave: Lagunes littorales; Méditerranée; Vidéo sous-marine remorquée; Diagnostic; Macrophytes; Coastallagoon; Mediterranean; Towed submarine video; Diagnostic; Macrophytes.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00113/22400/20092.pdf

Suivi estival des lagunes méditerranéennes françaises - Bilan des résultats 2014
Provedor de dados: 5
Autores: Derolez, Valerie; Oheix, Jocelyne; Ouisse, Vincent; Munaron, Dominique; Fiandrino, Annie; Messiaen, Gregory; Hubert, Clarisse; Lamoureux, Alice; Malet, Nathalie; Fortune, Martine; Berard, Lucas; Mortreux, Serge; Guillou, Jean-louis.
Le Réseau de Suivi Lagunaire (RSL), qui permettait d’évaluer l’état vis-à-vis de l’eutrophisation des lagunes du Languedoc-Roussillon, a pris fin en 2013. Une campagne DCE d’évaluation de l’état des masses d’eau côtières et de transition de la façade méditerranéenne est programmée en 2015. Ce rapport rend compte des suivis réalisés par Ifremer en 2014 sur 22 masses d’eau lagunaires du bassin Rhône-Méditerranée et Corse (financement AERMC).   Un diagnostic de l’état des masses d’eau, intégrant l’état physico-chimique de la colonne d’eau et l’état du phytoplancton est établi pour les 22 masses d’eau (dont 4 oligo-mésohalines), à partir des données acquises sur la période 2009-2014, selon les critères et les grilles DCE. Trois masses d’eau (Thau,...
Tipo: Text
Palavras-chave: Directive Cadre sur l’Eau (DCE); Lagunes; Masses d’eau de transition; Phytoplancton; Macrophytes; Sédiments.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00273/38461/36864.pdf

Turbidity retrieval and monitoring of Danube Delta waters using multi-sensor optical remote sensing data: An integrated view from the delta plain lakes to the western-northwestern Black Sea coastal zone
Provedor de dados: 5
Autores: Guttler, Fabio; Niculescu, Simona; Gohin, Francis.
Based on multi-sensor optical remote sensing techniques, more than 80 medium and high spatial resolution satellite images were used for studying the turbidity patterns of Danube Delta waters. During a selected 4-year temporal coverage (2006 to 2009), the turbidity gradients were simultaneously analyzed in the delta plain lakes and in the Black Sea western-northwestern coastal zone. Two distinct, but complementary, methodologies for retrieving turbidity were employed, one for the lakes and the other for the coastal zone. After comparing the turbidity satellite-derived turbidity products with in-situ measurements, the inter-comparability of the products was independently verified. Then, through an integrative analysis, the initial hypothesis of turbidity...
Tipo: Text
Palavras-chave: Turbidity; Satellite remote sensing; Danube Delta; Delta plain lakes; Western-northwestern Black Sea; Danube River plume; Phytoplankton; Macrophytes.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00135/24622/23607.pdf

Campagne de surveillance DCE 2015 en Méditerranée française. Districts « RHONE ET COTIERS MEDITERRANEENS » ET « CORSE »
Provedor de dados: 5
Autores: Witkowski, Fanny; Andral, Bruno; Derolez, Valerie; Tomasino, Corinne.
Sur la façade méditerranéenne, l'Ifremer a assuré en 2015 une partie logistique de la quatrième campagne du contrôle de surveillance DCE et la coordination de la caractérisation de plusieurs éléments de qualité. Les résultats de la quatrième campagne de contrôles de surveillance DCE permettent de caractériser la qualité de 45 masses d’eau littorales suivies en 2015. Dans le district « Rhône et côtiers méditerranéens » (volet 1), 3 des 18 masses d’eau côtières (MEC) sont déclassées pour la chimie au regard des résultats acquis dans la matière vivante, tandis que l'ensemble des MEC suivies pour le phytoplancton affichent un bon état. Dans les masses d’eau de transition (MET), la chimie matière vivante déclasse 7 MET, le suivi dans l'eau (échantillonneurs...
Tipo: Text
Palavras-chave: Surveillance; Phytoplancton; Macrophytes; Substances prioritaires; Bioaccumulation; État biologique; État chimique; Eaux côtières; Eaux de transition.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00394/50583/51272.pdf

Seasonal variations in photosynthetic irradiance response curves of macrophytes from a Mediterranean coastal lagoon
Provedor de dados: 5
Autores: Plus, Martin; Auby, Isabelle; Verlaque, Marc; Levavasseur, Guy.
The main photosynthesis and respiration parameters (dark respiration rate, light saturated production rate, saturation irradiance, photosynthetic efficiency) were measured on a total of 23 macrophytes of the Than lagoon (2 Phanerogams, 5 Chlorophyceae, 10 Rhodophyceae and 6 Phaeophyceae). Those measurements were performed in vitro under controlled conditions, close to the natural ones, and at several seasons. Concomitantly, measurements of pigment concentrations, carbon, phosphorous and nitrogen contents in tissues were performed. Seasonal intra-specific variability of photosynthetic parameters was found very high, enlightening an important acclimatation capacity. The highest photosynthetic capacities were found for Chlorophyceae (e.g. Monostroma obscurum...
Tipo: Text
Palavras-chave: Thau lagoon; Phaeophyceae; Rhodophyceae; Chlorophyceae; Seagrasses; Seasonal variations; Oxygen method; Macrophytes; Light response curve; Photosynthesis.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-465.pdf

Checklist of the macroalgae of Thau Lagoon (Herault, France), a hot spot of marine species introduction in Europe
Provedor de dados: 5
Autores: Verlaque, Marc.
A checklist of macroalgae in Thau Lagoon (Herault, France), based on literature records and new collections, is given. Using present-day taxonomy, 196 taxa and stadia of macroalgae have been identified to date. Sixty of these were no longer found in the samples, 36 were new to the lagoon, and the taxonomic identity of 15 species was amended. Twenty-five new introduced taxa were identified, giving a total of 45 introduced macroalgae for the flora (23% of total). Among these, 17 taxa and several genera (Acrorhrix, Chondrus, Dasysiphonia (?), Prionitis) are new to the Mediterranean Sea and 12 are new to Europe. The majority (43 taxa) may originate from the Pacific region, having arrived either directly or via other aquaculture sites. A highly probable vector...
Tipo: Text
Palavras-chave: Méditerranée; Étang de Thau; Inventaire; Macrophytes; Espèces introduites; Mediterranean Sea; Than Lagoon; Macroalga; Checklist; Introduced species.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43368/42842.pdf

Rôle des macrophytes dans la restauration des milieux lagunaires : successions écologiques
Provedor de dados: 5
Autores: Le Fur, Ines.
The growing awareness of the negative impacts of the degradation of the water quality in coastal lagoons because of eutrophication has resulted in public action aiming at the reduction of the nutrient loadings into these lagoons. Hence, some of these coastal lagoons are currently undergoing ecological restoration and have shown a clear improvement of their water quality linked to decreasing phytoplankton biomass in the last 10 years. However, the response of the benthic macrophytes appears more complex, particularly by showing non-linear behaviour. By using complementary approaches including statistical analyses of long-term observations (1998-2015) and in situ measurements, this thesis aims to describe the dynamics of the macrophytes in space and time and...
Tipo: Text
Palavras-chave: Macrophytes; Eutrophisation; Lagunes méditerranéennes; Oligotrophisation; Restauration; Macrophytes; Eutrophication; Mediterrannean lagoons; Oligotrophication; Restoration.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00498/60959/64362.pdf

Réseaux de surveillance DCE - Campagne 2012 – District « Rhône et côtiers méditerranéens »
Provedor de dados: 5
Autores: Sargian, Peggy; Andral, Bruno; Derolez, Valerie.
Les programmes de surveillance liés à la mise en œuvre de la DCE sont coordonnés par le Ministère de l’Ecologie, du Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin hydrographique ce sont les Agences de l’eau qui, avec l’Etat, prennent en charge l’application, la mise en œuvre de ces réseaux.  Sur la façade méditerranéenne, Ifremer a assuré pour le compte du Schéma Directeur des Données sur l’Eau la maîtrise d’ouvrage de la troisième campagne du contrôle de surveillance, en coordonnant l’ensemble de l’acquisition des données et de leur synthèse en collaboration avec de nombreux partenaires : les Universités, des bureaux d’études, des structures locales de gestion et les services de l’Etat.   Les résultats de cette troisième...
Tipo: Text
Palavras-chave: Surveillance; Phytoplancton; Benthos de substrat meuble; Posidonie; Macrophytes; Macroalgues; Substances prioritaires; Bioaccumulation; État biologique; État chimique; État écologique.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00170/28133/26353.pdf

Réseaux de surveillance DCE – Campagne 2012 – District « Corse »
Provedor de dados: 5
Autores: Sargian, Peggy; Andral, Bruno; Derolez, Valerie.
Les programmes de surveillance liés à la mise en œuvre de la DCE sont coordonnés par le Ministère de l’Ecologie, du Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin hydrographique ce sont les Agences de l’eau qui, avec l’Etat, prennent en charge l’application, la mise en œuvre de ces réseaux.  Sur la façade méditerranéenne, Ifremer a assuré pour le compte du Schéma Directeur des Données sur l’Eau la maîtrise d’ouvrage de la troisième campagne du contrôle de surveillance, en coordonnant l’ensemble de l’acquisition des données et de leur synthèse en collaboration avec de nombreux partenaires : les Universités, des bureaux d’études, des structures locales de gestion et les services de l’Etat.   Les résultats de cette troisième...
Tipo: Text
Palavras-chave: Surveillance; Phytoplancton; Benthos de substrat meuble; Posidonie; Macrophytes; Macroalgues; Substances prioritaires; Bioaccumulation; État biologique; État chimique; État écologique.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00170/28134/26354.pdf

Guide de reconnaissance et de suivi des macrophytes des lagunes du Languedoc-Roussillon
Provedor de dados: 5
Autores: Lauret, Michel; Oheix, Jocelyne; Derolez, Valerie; Laugier, Thierry.
The guide to macrophytes in Languedoc-Roussillon’s lagoons has been realised in the context of Mediterranean Lagoon Monitoring Network (LMN). It aims to provide knowledge on the macrophytes to the lagoons managers. The guide is divided into two parts. The first part deals with biology and ecology of the macrophytes and different methods of macrophyte monitoring. The second part is composed of cards of the most occurent species in lagoons, illustrated with photographs to make the identification easier.
Tipo: Text
Palavras-chave: Macrophytes; Macroalgues; Biologie; Écologie; Eutrophisation.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15416/12943.pdf

Diagnostic de la qualité du compartiment macrophytes des lagunes profondes dans le contexte de la Directive Cadre sur l’Eau (bassin Rhône Méditerranée &amp; Corse). Propositions d’évolution de la stratégie d’échantillonnage
Provedor de dados: 5
Autores: Derolez, Valerie; Oheix, Jocelyne.
Dans le contexte de la mise en œuvre de la Directive Cadre sur l’Eau (DCE) dans les lagunes méditerranéennes, un diagnostic de la qualité des peuplements de macrophytes est effectué tous les trois ans. Certaines lagunes du bassin Rhône Méditerranée et Corse sont caractérisées par des profondeurs importantes, qui peuvent constituer une limite naturelle au développement des espèces de référence, dont les herbiers de zostères et de cymodocées représentent la part la plus importante en terme de recouvrement. L’objectif de ce rapport est d’analyser les diagnostics des macrophytes et l’impact des stations profondes de plus de 5 mètres sur la qualité des diagnostics pour les étangs de Ponant, Diana, Urbino, Thau et Berre. Cette analyse est complétée par des...
Tipo: Text
Palavras-chave: DCE; Lagunes; Macrophytes; Zostères.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00114/22528/20205.pdf

Diagnostic du compartiment macrophyte dans 17 masses d’eau de transition lagunaires en 2016, 2017 et 2018
Provedor de dados: 5
Autores: Cimiterra, Nicolas; Massinelli, Laura; Dijoux, Laury; Oheix, Jocelyne; Derolez, Valerie.
En Méditerranée, des campagnes de surveillance sont mises en oeuvre tous les 3 ans depuis 2006 pour répondre aux objectifs de surveillance des eaux côtières et de transition. Ce rapport présente en détail les résultats des campagnes de suivi de l’état des macrophytes dans les masses d’eau de transition (MET) lagunaires, réalisées en 2016, 2017 et 2018, intégrées à l’état des lieux DCE 2018.  
Tipo: Text
Palavras-chave: Surveillance; Lagune; DCE; Macrophytes.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00656/76772/77931.pdf

Bilan méthodologique de l’outil de diagnostic de l’eutrophisation du RSL. Quatorze années de résultats en Région Languedoc-Roussillon
Provedor de dados: 5
Autores: Ifremer.
Ce travail présente un bilan de l’outil de diagnostic de l’eutrophisation mis en oeuvre depuis 2000 dans le cadre du Réseau de Suivi Lagunaire. Cet outil repose sur l’étude de quatre compartiments : sédiments, macrophytes, colonne d’eau et phytoplancton. Un récapitulatif de la méthode actuelle de diagnostic et de ses évolutions depuis le début du RSL est présenté (pour chacun des compartiments puis pour la méthode de diagnostic complet). Des analyses statistiques ont permis d’étudier la pertinence de la stratégie de suivi et de la grille de diagnostic de chaque compartiment. Les résultats permettent de préconiser un maintien des stratégies de prélèvements du sédiment et des macrophytes et l’arrêt des suivis annuels de la colonne d’eau et du phytoplancton...
Tipo: Text
Palavras-chave: Réseau de Suivi Lagunaire; Lagune; Eutrophisation; Méthode de diagnostic; Sédiment; Macrophytes; Phytoplancton; Colonne d’eau; Prélèvement; Analyse; Grille de qualité; DCE.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00165/27662/25839.pdf

Étude et modélisation des populations de macrophytes dans la lagune de Thau (Hérault, France)
Provedor de dados: 5
Autores: Plus, Martin.
The works carried out can be divided in three main lines : design and management of experimental studies on primary production processes, macrophyte spatial distribution study and development of macrophyte and seagrass numerical models.  In situ and in vitro experiments have been performed with the aim of studying the processes and the parameters involved in the photosynthesis-respiration system, as well as to establish the main biotic (self-shading effect, physiology of the photosynthesis, carbon, nitrogen and chlorophyll tissu contents) and abiotic (temperature, light and nutrients) factors controlling macrobenthic primary production. A seagrass ecosystem model based on nitrogen and oxygen fluxes has been developped. Model calibration and validation have...
Tipo: Text
Palavras-chave: Primary production; Light; Nitrogen; Nutrients; Mathematical model; Thau lagoon; Seagrass; Macrophytes; Production primaire; Lumière; Azote; Nutriments; Model mathématique; Thau; Phanérogames; Macrophytes.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/these-6518.pdf

Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oleron, Atlantic coast, France)
Provedor de dados: 5
Autores: Pigeot, J; Miramand, P; Guyot, T; Sauriau, Pierre-guy; Fichet, D; Le Moine, Olivier; Huet, V.
The Marennes-Oleron Bay is subject to chronic pollution by cadmium (Cd) from the Gironde watershed. An ecosystem approach was used to study the fate of cadmium in the different biological compartments. The median Cd concentration was 0.4 mu g g(-1) dry weight for the 63 benthic species measured. When combined with the respective biomasses for the different species studied, we estimated that 7 kg of Cd is partitioned into the soft tissues of the benthic species in the bay. The majority of this cadmium was distributed between primary producers, mainly microphytobenthos (40 %), and suspension-feeders, mainly oysters (40 %). All other benthic species measured were associated with negligible masses of Cd. Two trophic levels contained 98 % of the Cd: 3 kg was...
Tipo: Text
Palavras-chave: Marennes Oleron Bay; Trophic food web; Bioaccumulation; Cadmium; Macrofauna; Microphytobenthos; Macrophytes.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-3615.pdf

Modelling of oxygen and nitrogen cycling as a function of macrophyte community in the Thau lagoon
Provedor de dados: 5
Autores: Plus, Martin; Chapelle, Annie; Lazure, Pascal; Auby, Isabelle; Levavasseur, G; Verlaque, M; Belsher, Thomas; Deslous-paoli, Jean-marc; Zaldivar, J; Murray, C.
A three-dimensional model coupling physical and biological processes for the whole Than lagoon (Mediterranean coast of France) was developed in order to assess the relationships between macrophytes and the oxygen and nitrogen cycles. Ten species have been inserted as forcing variables in the model. Plankton dynamics, shellfish cultivation impact and mineralization of organic matter are also considered, as well as nutrient and oxygen exchanges between the sediment and the water column.   Simulations with and without the macrophytes have shown that the system can be characterized as having a highly structured pattern involving lagoon nitrogen and oxygen cycles. This pattern is created by the combined influence of macrophytes, watershed and oyster farming....
Tipo: Text
Palavras-chave: Thau lagoon; Biogeochemical cycles; Ecological modelling; Macrophytes.
Ano: 2003
URL: https://archimer.ifremer.fr/doc/2003/publication-459.pdf

Fish assemblages in stream stretches occupied by cattail (Typhaceae, Angiospermae) stands in Southeast Brazil
Provedor de dados: 83
Autores: Rocha,Fabíola Carla da; Casatti,Lilian; Carvalho,Fernando Rogério; Silva,Alexandre Marco da.
Macrophytes are a major component of lentic and lotic aquatic ecosystems. As consequences of environmental degradation, species of cattail (genus Typha) may become dominant along streams. The purpose of this study was to investigate the structure and feeding of fish assemblages in stream stretches under influence of Typha sp., also addressing the influences of temporal variation on composition, abundance, biomass, diversity, species richness, and feeding of fish. Six streams (labelled S1-S6) in the upper rio Turvo basin, southeast Brazil, with dense stands of Typha sp. in the instream and riparian habitat, were studied in six campaigns during three central months in both of the dry and wet periods, by using a standardized collection effort. Thirty-seven...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disturbance; Chironomidae larvae; Detritus; Macrophytes; Upper rio Paraná.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200016

Acute Toxicity of Herbicides and Sensibility of Aquatic Plant Wolffia brasiliensis as a Bioindicator Organism
Provedor de dados: 87
Autores: PEREIRA,P.C.; BRUNETTI,I.A.; CASTRO,K.S.; CHIAROTTI,L.F.; SANTOS,B.E.; MORAES,J.C.; CRUZ,C.
ABSTRACT: This study aimed to establish the mass cultivation of Wolffia brasiliensis under laboratory conditions, determine the sensitivity of reference substances (potassium dichromate, sodium chloride, and potassium chloride), and estimate the acute toxicity (LC50;7d) for the herbicide glyphosate, diquat, paraquat, imazapyr, 2,4-D, saflufenacil, imazamox, penoxsulam, metsulfuron-methyl, and atrazine. Three media were tested for culture establishment: Hoagland’s medium, 5.0 g L-1 NPK fertilizer (20-5-20), a mixture of Oxisol + organic substrate of decaying aquatic plant (2:1; v v-1). Sensitivity tests with reference substances and acute toxicity for herbicides were carried out after establishing the cultivation. The species W. brasiliensis presented an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrophytes; Chemicals; Ecotoxicology; Reference substances; Pesticides.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100289

Anatomy and physiology of Cattail as related to different population densities
Provedor de dados: 87
Autores: CORRÊA,F.F.; MADAIL,R.H.; BARBOSA,S.; PEREIRA,M.P.; CASTRO,E.M.; SORIANO,C.T.G.; PEREIRA,F.J.
The objective of this work was to evaluate the effects of the population density of Typha angustifolia plants in the anatomical and physiological characteristics. Plants were collected from populations of high density (over 50% of colonization capacity) and low density (less than 50% of colonization capacity) and cultivated under controlled greenhouse conditions. Plants from both populations were grown in plastic trays containing 4 L of nutritive solution for 60 days. At the end of this period, the relative growth rate, leaf area ratio, net assimilatory rate, root/shoot ratio, leaf anatomy, root anatomy, and catalase and ascorbate peroxidase activities were evaluated. Plants from high density populations showed increased growth rate and root/shoot ratio....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrophytes; Typha angustifolia; Morphological plasticity; Plant growth; Ecological plant anatomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000100001

Addition of residues and reintroduction of microorganisms in Jatropha curcas cultivated in degraded soil
Provedor de dados: 91
Autores: Santos,Adriana A.; Agustini,José A.; Maltoni,Katia L.; Cassiolato,Ana M. R.
ABSTRACT The aim of this study was to evaluate, through mycorrhization (root colonization and number of spores of arbuscular mycorrhizal fungi - AMF), leaf acid phosphatase and soil chemical characteristics, the effects of the addition of residues (macrophytes and ash), hydrogel and the reintroduction of microorganisms in a degraded area cultivated with jatropha. Degradation occurred when the surface soil was removed during the construction of a hydroelectric power plant. The experiment was set in a randomized block design, using a 2 x 2 x 4 factorial scheme, i.e., two inoculation treatments (with and without soil-inoculum), two hydrogel treatments (with and without) and four with the addition of residues (macrophytes - MAC, ash, MAC + ash and control,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas L.; Arbuscular mycorrhiza; Hydrogel; Macrophytes; Cerrado.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000400372

The aquatic habit and host plants of Paracles klagesi (Rothschild) (Lepidoptera, Erebidae, Arctiinae) in Brazil
Provedor de dados: 92
Autores: Meneses,Aurélio R.; Bevilaqua,Marcus Vinícius O.; Hamada,Neusa; Querino,Ranyse B.
The aquatic habit and host plants of Paracles klagesi (Rothschild) (Lepidoptera, Erebidae, Arctiinae) in Brazil. The aquatic caterpillar Paracles klagesi (Rothschild, 1910) was collected from the headwaters of a stream in an ecotone between Cerrado and Babaçu forest in northeastern Brazil. The single caterpillar found was observed feeding on the macrophyte Tonina fluviatilis Aubl. (Eriocaulaceae) and other aquatic plants of the family Nymphaeaceae present in the area, but also accepted as food Elodea canadensis Michx. (Hydrocharitaceae) and Cabomba sp. (Cabombaceae) under laboratory conditions.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic insects; Arctiini; Insecta; Caterpillar; Macrophytes.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300016

Addition of waste and introduction of microorganisms after 45 years of soil degradation
Provedor de dados: 124
Autores: Santos,Adriana Avelino; Agustini,José Antônio; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues.
ABSTRACT The construction of hydroelectric power plants (HPP) may result in environmental problems, such as extensive areas of exposed subsoil and conditions of extreme degradation. These areas require alternative that minimize impact and allow partial recovery of their ecosystem functions and vegetation. This study aimed to evaluate the effects of residue addition (organic/macrophytes - OR and inorganic/ash - AR), hydrogel, and inoculation of microorganisms in degraded soil, cultivated with Jatropha curcas, through fertility and microbial activity. A conserved Cerrado ("savannah") soil was the source of microorganisms - mainly mycorrhizal fungi. The experiment was conducted for 12 months (during 2010/2011) at the farm of UNESP-School of Engineering/Campus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas; Macrophytes; Sugar cane ash; Hydrogel; Cerrado; Microbial activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300363

Temperature influences swine wastewater treatment by aquatic plants
Provedor de dados: 63
Autores: Weirich,Carlos Eduardo; Feiden,Aldi; Souza,Camila Silveira; Marchetti,Clarice Rossato; Aleixo,Valdemir; Klosowski,Élcio Silvério.
ABSTRACT Studies show that aquatic plants are an efficient alternative to minimize the harmful effects of wastewater. Two species of aquatic macrophytes (Pistia stratiotes and Eichhornia crassipes) were chosen to evaluate the temperature effect on the performance of these macrophytes species in a post-treatment system of swine wastewater. The experiment was carried out in the municipality of Toledo, Paraná State, Brazil. For the experimental system, 24 concrete tanks with 80 L capacity were used, each measuring approximately 1.5 m in length, 0.25 m in width and 0.16 m deep. Wastewater characteristics and variables hydrogen potential (pH), electrical conductivity (EC), and dissolved oxygen (DO) were measured weekly. After, we analyzed the aquatic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pistia stratiotes; Eichhornia crassipes; Nitrogen; Phosphorus; Macrophytes.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000400103

Arbuscular mycorrhizal fungi and dark septate fungi in plants associated with aquatic environments
Provedor de dados: 39
Autores: Marins,Josy Fraccaro de; Carrenho,Rosilaine.
ABSTRACT There have been several reports of symbionts in the roots of plants that live in aquatic environments. Arbuscular mycorrhizal fungi (AMF) are the most common microsymbionts and possibly recolonized the aquatic environment together with plants; however, their functions and the extent of their benefits are unclear. Furthermore, the presence of other groups of fungi, such as dark septate fungi (DSF), with functions supposedly analogous to those of mycorrhizal fungi, has also been reported. The present work provides a compilation of data regarding the presence of arbuscular mycorrhizae in plants from, or under the influence of, aquatic environments, and co-colonization by AMF and DSF. Forty species of non-vascular plants, ferns, fern allies, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colonization; Flooding; Fungal co-occurrence; Macrophytes; Taxonomic diversity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200295

Structure and dynamics of the community of periphytic algae in a subtropical reservoir (state of São Paulo, Brazil)
Provedor de dados: 39
Autores: Taniwaki,Ricardo Hideo; Borghi,Tatiana Cintra; Magrin,Albano Geraldo Emílio; Calijuri,Maria do Carmo; Bottino,Flávia; Moschini-Carlos,Viviane.
Much remains to be learned about biological diversity, which constitutes a valuable natural resource. Due to the pressure that human activity has put on natural resources, biodiversity has been reduced, often unbeknownst to those responsible for that activity. Therefore, we aimed to perform a quantitative and qualitative analysis of periphytic algae in the Itupararanga reservoir, correlating the results with the physical and chemical characteristics of the water, as well as with climatic conditions. To that end, five samples were collected at four sampling stations in the Itupararanga reservoir during the year 2010. Aquatic macrophytes were collected with a 156-cm² frame, and the periphytic algae were scraped free of the macrophytes with a brush. Samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Periphyton; Macrophytes; Water quality; Detrended correspondence analysis; Principal components analysis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000300013

Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern
Provedor de dados: 39
Autores: Silva,Adinan Alves da; Oliveira,Juraci Alves de; Campos,Fernanda Vidal de; Ribeiro,Cleberson; Farnese,Fernanda dos Santos.
ABSTRACT In many plant species, tolerance to toxic metals is highly dependent on glutathione, an essential metabolite for cellular detoxification. We evaluated the responses of glutathione metabolism to arsenite (AsIII) in Salvinia molesta, an aquatic fern that has unexplored phytoremediation potential. Plants were exposed to different AsIII concentrations in nutrient solution for 24 h. AsIII caused cell membrane damage to submerged leaves, indicating oxidative stress. There was an increase in the glutathione content and ϒ-glutamylcysteine synthetase enzyme activity in the submerged and floating leaves. The glutathione peroxidase and glutathione sulfotransferase enzymes also showed increased activity in both plant parts, whereas glutathione reductase only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arsenic; Glutathione; Macrophytes; Oxidative stress; Phytoremediation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400657

Potential effects of mechanically removing macrophytes on the phytoplankton community of a subtropical reservoir
Provedor de dados: 39
Autores: Wojciechowski,Juliana; Burda,Tamires Marcela; Scheer,Mauricio Bergamini; Costa,Elaine Aparecida Dias da; Fernandes,Luciano Felício.
ABSTRACT Intensive growth of aquatic macrophytes interferes with water quality and ecosystem dynamics worldwide. Although mechanically removing macrophytes is the most commonly used method for their eradication, it can also cause undesirable disturbances in aquatic reservoir communities. We performed laboratory incubations of phytoplankton sampled before and after macrophytes were mechanically removed from the Piraquara II reservoir, South Brazil. We analyzed changes in growth and composition of the main phytoplankton groups with respect to nutrient shifting. Prior to removing the macrophytes, the phytoplankton community was dominated by low cell abundances of diatoms and flagellates. In contrast, growth rates of cyanobacteria (mainly Cylindrospermopsis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chlorophytes; Cyanobacteria; Diatoms; Macrophytes; Mechanical removal; Phytoplankton; Reservoir management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400588

Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits
Provedor de dados: 42
Autores: PEREIRA,FABRICIO J.; CASTRO,EVARISTO M. DE; OLIVEIRA,CYNTHIA DE; PIRES,MARINÊS F.; PEREIRA,MARCIO P.; RAMOS,SILVIO J.; FAQUIN,VALDEMAR.
This study aimed at verifying the lead tolerance of water hyacinth and at looking at consequent anatomical and physiological modifications. Water hyacinth plants were grown on nutrient solutions with five different lead concentrations: 0.00, 0.50, 1.00, 2.00 and 4.00 mg L–1 by 20 days. Photosynthesis, transpiration, stomatal conductance and the Ci/Ca rate were measured at the end of 15 days of experiment. At the end of the experiment, the anatomical modifications in the roots and leaves, and the activity of antioxidant system enzymes, were evaluated. Photosynthetic and Ci/Ca rates were both increased under all lead treatments. Leaf anatomy did not exhibit any evidence of toxicity effects, but showed modifications of the stomata and in the thickness of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Ecophysiology; Plant anatomy; Macrophytes.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301423

Periphytic diatoms from an oligotrophic lentic system, Piraquara I reservoir, Paraná state, Brazil
Provedor de dados: 49
Autores: Silva-Lehmkuhl,Angela Maria da; Tremarin,Priscila Izabel; Vercellino,Ilka Schincariol; Ludwig,Thelma A. Veiga.
Abstract: Knowledge of biodiversity in oligotrophic aquatic ecosystems is fundamental to plan conservation strategies for protected areas. This study assessed the diatom diversity from an urban reservoir with oligotrophic conditions. The Piraquara I reservoir is located in an Environmental Protection Area and is responsible for the public supply of Curitiba city and the metropolitan region. Samples were collected seasonally between October 2007 and August 2008. Periphytic samples were obtained by removing the biofilm attached to Polygonum hydropiperoides stems and to glass slides. The taxonomic study resulted in the identification of 87 diatom taxa. The most representative genera regarding the species richness were Pinnularia (15 species) and Eunotia (14...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial substrate; Diatom ecology; Macrophytes; Reservoirs.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200302

Epiphytic diatoms (Diatomeae) from Piraquara II urban reservoir, Paraná state
Provedor de dados: 49
Autores: Marra,Raquel Cristina; Tremarin,Priscila Izabel; Algarte,Vanessa Majewski; Ludwig,Thelma Veiga.
Abstract We conducted a taxonomical study of epiphytic diatoms on the macrophytes Polygonum hydropiperoides, Ludwigia peruviana and Alternanthera philoxeroides collected in the mesotrophic reservoir Piraquara II flooded in 2009, located in the state of Paraná. A total of 135 infrageneric taxa were identified, among them five at generic level and other five are first records to the state. We provided illustration, valve metrics, meristics limits and taxonomic reference for each taxon. Also, life forms and species frequency are given. The most frequent diatoms totalized 15.3% of total identified taxa and sporadic species represented 54.7%. Achnanthidium minutissimum (Kützing) Czarnecki and Brachysira neoexilis Lange-Bertalot occurred in more than 90% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillariophyta; Freshwater; Macrophytes; Mesotrophic; Periphyton; Taxonomy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400303

The invertebrate's community in adjacent Alto Iguaçu's anthropic lakes of different environmental factors
Provedor de dados: 49
Autores: Krawczyk,Ana Carolina de Deus Bueno; Baldan,Lucíola Thais; Aranha,José Marcelo Rocha; Menezes,Márcia Santos de; Almeida,Cyntia Vilasboas.
Environmental differences occur between lentic and lotic communities' establishment, especially because of water time residence. Here we used a combination of field measurements and statistical analysis to evaluate the influent factors on the aquatic macroinvertebrates' composition and structure in 15 anthropogenic lakes from Alto Iguaçu's region. Macroinvertebrates were sampled from the marginal vegetation (with or without macrophytes) and sediment. Chemical parameters ranged among the anthropogenic lakes, mainly those which are connected to the Iguaçu River, beyond the presence or absence of macrophytes, interfering on the community's structure. Lake's morphometric data were measured in each lake and its relation to community was tested. The community...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater invertebrates; Iguaçu River; Productivity; Macrophytes; Tropical lakes.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100005

Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil
Provedor de dados: 52
Autores: Gazulha,Vanessa; Montú,Mônica; Marques,David da Motta; Bonecker,Claúdia Costa.
The aim of this study was to test the effects of natural free-floating plants on zooplankton distribution in a shallow subtropical lake. First, the hypothesis that free-floating plants have an effect on physico-chemicals, leading to a decrease on nutrient availability and influencing the phytoplankton biomass and zooplankton community was tested. Second, the hypothesis that free-floating plants act as a refuge for zooplankton was tested. Three microhabitats were selected: free-floating plants, littoral area and open water. Results demonstrated that the effects of different microhabitats on phytoplankton biomass and physico-chemicals were not significant, indicating a weak influence of the plants. Zooplankton densities were higher in free-floating plants...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrophytes; Refuge; Spatial distribution; Tropical zooplankton.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400014

Comparison of diversity indices applied to macrophyte incidence-based data
Provedor de dados: 52
Autores: Evangelista,Heloísa Beatriz Antoniazi; Thomaz,Sidinei Magela; Evangelista,Luiz Roberto.
In this work, a recently proposed diversity index based on Patil and Taillie parametric diversity measure (or Tsallis entropy), Sq*, was applied to samples (presence-absence data) of macrophytes from the Itaipu Reservoir, Brazil. This new index was the value of the family of indices Sq for a specific evenness of a sample. Results demonstrated that the Shannon index and species richness showed expressively high correlation with the Sq*; however, the evenness had low correlation coefficients with the index Sq*, indicating that Sq* was particularly sensitive to rarity and species richness. On the other hand, the weak correlations of this index with evenness demonstrated that it was less sensitive to species relative abundances.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tsallis entropy; Macrophytes; Reservoir; Shannon; Simpson.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200014

Bioaccumulation and chemical forms of cadmium, copper and lead in aquatic plants
Provedor de dados: 52
Autores: Hu,JinZhao; Zheng,AiZhen; Pei,DongLi; Shi,GuoXin.
The cadmium(Cd), copper(Cu) and lead(Pb) accumulation, as well as their relative content of different chemical forms in Sagittaria sagittifolia L. and Potamogeton crispus L. were determined. The results showed that both the plants had the ability to accumulate large amounts of Cd, Cu and Pb, and they absorbed metals in dose-dependent manners. The roots of S. sagittifolia appeared more sensitive to Cd and Pb than the leaves of P. crispus. The potential of Cu uptake by these two plant tissues was similar. Under the same concentration, the uptake of Cu for both the plants was higher than Pb and Cd, while that of Pb was lowest. The Cd, Cu and Pb existed with various forms in the plants. Cd and Pb were mainly in the NaCl extractable form in S. sagittifolia and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Phytoextraction; Macrophytes; Sagittaria sagittifolia L.; Potamogeton crispus L.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100029