Consulta: subjectFacets:"Marine biogeography"
Registros recuperados: 5
Data/hora: 09/06/2024 14:40:02

Biogeography of tuna and billfish communities
Provedor de dados: 5
Autores: Reygondeau, Gabriel; Maury, Olivier; Beaugrand, Gregory; Fromentin, Jean-marc; Fonteneau, Alain; Cury, Philippe.
Aim The aims of this study were: (1) to identify global communities of tuna and billfish species through quantitative statistical analyses of global fisheries data; (2) to describe the spatial distribution, main environmental drivers and species composition of each community detected; and (3) to determine whether the spatial distribution of each community could be linked to the environmental conditions that affect lower trophic levels by comparing the partitions identified in this study with Longhursts biogeochemical provinces. Location The global ocean from 60 degrees S to 65 degrees N. Methods We implemented a new numerical procedure based on a hierarchical clustering method and a nonparametric probabilistic test to divide the oceanic biosphere into...
Tipo: Text
Palavras-chave: Biogeochemical provinces; Global ocean; Istiophorus; Katsuwonus; Macroecology; Makaira; Marine biogeography; Tetrapturus; Thunnus; Xiphias.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00060/17141/14716.pdf

Recent population expansion and connectivity in the hydrothermal shrimp Rimicaris exoculata along the Mid-Atlantic Ridge
Provedor de dados: 5
Autores: Teixeira, Sara; Cambon-bonavita, Marie-anne; Serrao, Ester A.; Desbruyeres, Daniel; Arnaud-haond, Sophie.
Aim Deep-sea hydrothermal vents are unstable habitats that are both spatially and temporally fragmented. In vent species, a 'short-term insurance' hypothesis would lead us to expect mostly self-recruitment, limiting the loss of larvae in the deep ocean or water column and increasing genetic differentiation over the time elapsed since colonization. Alternatively, a 'long-term insurance' hypothesis would support the prediction of selection for large-scale dispersal, to ensure long-term persistence in these ephemeral habitats. The main goal of this study was to infer the spatial and temporal distribution of genetic diversity of the shrimp Rimicaris exoculata, which forms high-density local populations on hydrothermal vents along the Mid-Atlantic ridge....
Tipo: Text
Palavras-chave: Bottleneck; Deep-sea biogeography; Dispersal; Genetic diversity; Hydrothermal vents; Marine biogeography; Mid-Atlantic Ridge; Rimicaris exoculata; Spatio-temporal distribution.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00033/14394/12350.pdf

Climate Change-Induced Emergence of Novel Biogeochemical Provinces
Provedor de dados: 5
Autores: Reygondeau, Gabriel; Cheung, William W. L.; Wabnitz, Colette C. C.; Lam, Vicky W. Y.; Frölicher, Thomas; Maury, Olivier.
The global ocean is commonly partitioned into 4 biomes subdivided into 56 biogeochemical provinces (BGCPs) following the accepted division proposed by Longhurst in 1998. Each province corresponds to a unique regional environment that shapes biodiversity and constrains ecosystem structure and functions. Biogeochemical provinces are dynamic entities that change their spatial extent and position with climate and are expected to be perturbated in the near future by global climate change. Here, we characterize the changes in spatial distribution of BGCPs from 1950 to 2100 using three earth system models under two representative concentration pathways (RCP 2.6 and 8.5). We project a reorganization of the current distribution of BGCPs driven mostly by a poleward...
Tipo: Text
Palavras-chave: Physical oceanography; Marine biogeography; Pelagic environment; Novel ocean climate; Environmental niche model.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00654/76611/77762.pdf

Report on the CANCAP-Project for Marine Biological research in the Canarian - Cape Verdean Region of the North Atlantic Ocean (1976-1986). Part I. List of stations
Provedor de dados: 16
Autores: Land, J. van der.
A list of stations is given of the CANCAP-project for marine zoological, botanical and paleontological research in the southeastern part of the North Atlantic Ocean. This project included oceanographic expeditions as well as fieldwork on the islands and the coast of WestAfrica in the period from 1976 to 1986.
Tipo: Article / Letter to the editor
Palavras-chave: Marine biology; Marine biogeography; North Atlantic Ocean; Madeira archi- pelago; Azores; Selvagens archipelago; Canary Islands; Cape Verde Islands; Senegal; Mauritania.; 42.94.
Ano: 1987
URL: http://www.repository.naturalis.nl/record/317655

Biogeographic patterns of Chilean littoral fishes
Provedor de dados: 97
Autores: OJEDA,F. PATRICIO; LABRA,FABIO A; MUÑOZ,ALEJANDRO A.
In this study, we analyzed the biogeographic patterns of the Chilean littoral fish fauna, including latitudinal trends in teleost and chondrichthyan fish species richness, their distribution range patterns, and their level of endemism, both to the Chilean coast and the Southeastern Pacific. We determined the number and percentage of fish taxa within four different groups based on their biogeographic affinities. This was done, both for teleost and chondrichthyan fishes, at the species, genus and family level. In order to recognise the existence of biogeographic regions, we applied cluster and ordination analyses to the distribution data, using objective bootstrapping techniques at the three taxonomic levels used. We found that littoral fish diversity...
Tipo: Journal article
Palavras-chave: Marine biogeography; Littoral fishes; Endemism; Southeastern Pacific Ocean; Latitudinal diversity patterns.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400007