|
|
|
| Registros recuperados: 32 | |
|
|
| Pereira,Carlos; De Roa,Evelyn Zoppi; Montiel,Edie; Hernández,Vanessa; Castillo,Anyoelis. |
| ABSTRACT Microphytobenthos is a community that groups benthic photosynthetic microorganisms. In Venezuela and the other countries in the Caribbean Sea, this group has been scarcely studied, so its diversity is unknown. This study aims to describe the spatial and temporal variations of its composition and abundance in the central coastal zone of Venezuela. Samplings were conducted monthly from June 2014 to March 2015, in random stations at depths less than 20 m. Richness and abundance data were processed through multivariate hypothesis tests (Anosim - SIMPER - nMDS). A total of 327 species were identified, with a dominance of diatoms and dinoflagellates, without significant spatial and temporal variations. In terms of abundance, the most representative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Community structure; Marine ecology; Caribbean Sea; Microalgae. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612022000200029 |
| |
|
|
| Folke, Carl; Stockholm Resilience Centre, Stockholm University; Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences; carl.folke@beijer.kva.se. |
| Overfishing has historically caused widespread stock collapses in the Southern Ocean. Until recently, illegal, unreported, and unregulated (IUU) fishing threatened to result in the collapse of some of the few remaining valuable fish stocks in the region and vulnerable seabird populations. Currently, this unsustainable fishing has been reduced to less than 10% of former levels. We describe and analyze the emergence of the social-ecological governance system that made it possible to curb the fisheries crisis. For this purpose, we investigated the interplay between actors, social networks, organizations, and institutions in relation to environmental outcomes. We drew on a diversity of methods, including qualitative interviews, quantitative social network and... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: CCAMLR; Governance; IUU fishing; Marine ecology; Southern Ocean; Toothfish. |
| Ano: 2013 |
|
| |
|
| |
|
|
| Cruaud, Perrine; Decker, Carole; Olu, Karine; Arnaud-haond, Sophie; Papot, Claire; Le Baut, Jocelyn; Vigneron, Adrien; Khripounoff, Alexis; Gayet, Nicolas; Cathalot, Cecile; Caprais, Jean-claude; Pignet, Patricia; Godfroy, Anne; Cambon Bonavita, Marie-anne. |
| This study provides an analysis of vesicomyid bivalve–symbiont community distribution across cold seep and hydrothermal vent areas in the Guaymas Basin (Gulf of California, Mexico). Using a combination of morphological and molecular approaches including fluorescent in situ hybridization (FISH), and electronic microscopy observations, vesicomyid clam species and their associated symbionts were characterized and results were analyzed in light of geochemical conditions and other on‐site observations. A greater diversity of vesicomyids was found at cold seep areas, where three different species were present (Phreagena soyoae [syn. kilmeri], Archivesica gigas, and Calyptogena pacifica). In contrast, A. gigas was the only species sampled across the hydrothermal... |
| Tipo: Text |
Palavras-chave: Deep-sea ecosystems; Guaymas Basin; Marine ecology; Pliocardinae bivalve; Sulfur storage; Vesicomyid movements. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00493/60426/64028.pdf |
| |
|
|
| Bailleul, Frédéric; Charrassin, Jean-benoit; Ezraty, Robert; Ardhuin, Fanny; Mcmahon, Clive R.; Field, Iain C.; Guinet, Christophe. |
| The behaviour of southern elephant seals from Kerguelen Island (4950′S, 7030′E) was investigated in relation to the oceanographic regions of the Southern Ocean. The oceanographic and the seal behaviour data, including location and diving activity, were collected using a new generation of satellite-relayed devices measuring and transmitting pressure, temperature, and salinity along with locations. Dive duration, maximum diving depth, time spent at the bottom of the dives, and shape of dive profiles were compared between male and female seals, and were related to the oceanographic characteristics of areas prospected by the seals. Most animals travelled to the Antarctic shelf. However, during winter, adult females travelled away from the... |
| Tipo: Text |
Palavras-chave: Mirounga leonina; Diving Behaviour; Pelagic environment; Benthic environment; Temperature profiles; Marine ecology. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2500.pdf |
| |
|
| |
|
|
| Feis, Marieke E.; Thieltges, David W.; Olsen, Jeanine L.; De Montaudouin, Xavier; Jensen, K. Thomas; Bazairi, Hocein; Culloty, Sarah C.; Luttikhuizen, Pieternella C.. |
| Although molecular ecology of macroparasites is still in its infancy, general patterns are beginning to emerge, e.g. that the most vagile host in a complex life cycle is the main determinant of the population genetic structure of their parasites. This insight stems from the observation that populations of parasites with only freshwater hosts are more structured than those with terrestrial or airborne hosts. Until now, the same has not been tested for marine systems, where, in theory, a fully marine life cycle might sustain high dispersal rates because of the absence of obvious physical barriers in the sea. Here, we tested whether a marine trematode parasite that utilises migratory birds exhibited weaker population genetic structure than those whose life... |
| Tipo: Text |
Palavras-chave: Marine ecology; Population genetics; Parasite; Host parasite dynamics; Trematode; Invertebrates; Gymnophallus choledochus; Bucephalus minimus. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00375/48625/49417.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Llanio, M.; Fernàndez, M.D.; Cabrera, B.; Aneiros, A.. |
| Los invertebrados y las plantas marinas han provisto una nueva fuente de sustancias farmacológicas para el estudio de mecanismos que median los procesos inflamatorios (Jacobs et al., 1993). Se han descubierto nuevas clases estructurales de compuestos antiinflamatorios en la evaluación farmacológica de productos naturales marinos puros aislados de esponjas, gorgonias, corales y algas (Glaser et al., 1989). Debido a que en las costas cubanas hay abundancia de especies marinas, particularmente esponjas y celenterados aún poco estudiados, decidimos explorar los posibles efectos antiinflamatorios-analgésicos de cinco extractos provenientes de esponjas y gorgonias de nuestro archipiélago. |
| Tipo: Journal Contribution |
Palavras-chave: Marine ecology; Sponges; Marine ecology; Sponges; Http://aims.fao.org/aos/agrovoc/c_4609; Http://aims.fao.org/aos/agrovoc/c_7321. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/2924 |
| |
|
|
| Etoga, G. Y. L.. |
| Biodiversity is a holistic concept which encompasses what the scientific literature describes as inter-specific diversity (diversity between species), intra-specific diversity (genetic diversity) and diversity of ecosystems. As a support of life, the preservation of biodiversity in terrestrial and marine habitats is of primary importance for the ecological balance of the Earth. Moreover, it is essential for human beings whose lifestyle depends on nature. The value of biodiversity lies with the opportunities provided to mankind to adapt to a changing environment. Concerning specifically the seas and oceans that constitute ¾ of the planet and 90% of the biosphere, there is a renewed ‘ecological awareness’ at the global level on the need to preserve marine... |
| Tipo: Theses and Dissertations |
Palavras-chave: Marine ecology; Marine resources; Biodiversity. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/5475 |
| |
|
|
| Belfiore, S.; Balgos, M.; McLean, B.; Galofre, J.; Blaydes, M.; Tesch, D.. |
| This first issue is devoted to the use of indicators for ICAM, and is a direct result of the IOC-DFO-NOAA-CSMP International Workshop on the same topic, organised in May 2002, in Ottawa. Based on a background paper prepared by the Center for the Study of Marine Policy (University of Delaware) in preparation for the workshop, the aim of this Reference Guide is to present a literature review on the use of indicators around the world, from various programmes and projects, at global, regional, national and local scale.The need for indicators and reporting techniques which reflects the performance of coastal management projects and programmes and reveals the complex relationship that exist between coastal ecosystem health and anthropogenic activities,... |
| Tipo: Book |
Palavras-chave: Oceanography; Coastal oceanography; Coastal zone management; Marine ecology; Marine environment; Environment management; Socioeconomic aspects; Policies; Marine environment; Marine ecology; Policies; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_4609; Http://aims.fao.org/aos/agrovoc/c_6062. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/2677 |
| |
|
|
| Braun, M.; Reyes, H.; Valenzuela, V.; Castillo, J.; Osses, J.; Catasti, V.. |
| El presente documento corresponde al pre-informe final del Proyecto FIP 2002-01 Monitoreo de las condiciones bio-oceanográficas fisico-químicas; la distribución geográfica y abundancia de huevos y larvas de los recursos anchoveta, sardina, jurel y caballa y su variabilidad estacional; y la distribución de los recursos detectados por medio de técnicas hidroacústicas en la I y II Regiones, registradas durante los cruceros estacionales de monitoreo MOBIO 0205, MOBIO 0209, MOBIO 0212 y MOBIO 301, realizados en otoño, invierno y primavera de 2002 y verano de 2003 respectivamente. Entrega además la serie de tiempo mensual generada producto de la ocupación de las estaciones costeras de vigilancia localizadas frente a los puertos de Mejillones, Iquique y Arica... |
| Tipo: Report |
Palavras-chave: Physical oceanography; Water temperature; Salinity; Dissolved oxygen; Marine ecology; Seasonal variations; Echo surveys; Geographical distribution; Zooplankton; Physical oceanography; Water temperature; Dissolved oxygen; Geographical distribution; Zooplankton; Salinity; Marine ecology; Http://aims.fao.org/aos/agrovoc/c_5830; Http://aims.fao.org/aos/agrovoc/c_16063; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_6751; Http://aims.fao.org/aos/agrovoc/c_4609. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1728 |
| |
|
| |
|
| |
|
|
| Hénocque, Y.; Denis, J.. |
| This second volume of a guide to integrated coastal zone management opens a new dimension by discussing the processes involved in a more complete and dynamic way than the first, To fulfil1 this requirement, an expanded work group, drawing upon the knowledge of experts in political science, economics, and sociology, devoted over two years of effort (1999 - 2001) to its completion, following a disciplined working method. A dual principle prevailed in the application of this method. On one hand, it prescribed an approach structured as a series of steps, and on the other, it demanded that real situations be brought to light, emphasizing case studies of experience with or analysis of coastal management. |
| Tipo: Book |
Palavras-chave: Marine Environment Management; Coastal zone; Ecological zonation; Ecosystem management; Environmental factors; Environmental impact; Environmental monitoring; Environmental surveys; Environmental assessment; Marine ecology; Marine environment; Marine sciences; Ecological zonation; Environmental factors; Environmental impact; Environmental monitoring; Marine environment; Environmental assessment; Marine ecology; Marine sciences; Http://aims.fao.org/aos/agrovoc/c_2465; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_37751; Http://aims.fao.org/aos/agrovoc/c_4609; Http://aims.fao.org/aos/agrovoc/c_4613. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/2806 |
| |
|
| |
| Registros recuperados: 32 | |
|
|
|
