Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population
13 pages, 8 figures, 5 tables
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Inter Research
2004-08-02
|
| Subjects: | Geostatistics, Sediment variables, Liocarcinus depurator, Portunidae, Kriging, Mantel test, Temperatures, Granulometry, Spatial distribution, |
| Online Access: | http://hdl.handle.net/10261/37817 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-icm-es-10261-37817 |
|---|---|
| record_format |
koha |
| spelling |
dig-icm-es-10261-378172020-11-10T09:07:42Z Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population Rufino, Marta M. Maynou, Francesc Abelló, Pere Yule, Andrew B. Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution 13 pages, 8 figures, 5 tables The small-scale spatial distribution of density and biomass of the crab Liocarcinus depurator off the Ebro delta was analysed using universal kriging (non-linear geostatistics), considering depth as an external trend. In order to understand the spatial distribution of crab size, a third variable was created from the residuals of the non-linear regression between biomass and density. Variogram analysis of crab density and residuals of the biomass/density relationship presented a quadratic relationship with depth, while biomass showed a linear relationship with depth. All experimental variograms were fitted to spherical models. The patch size (range) found was 10.64 km for density, 14.53 km for biomass and 20.49 km for the residual variables. The spatial distribution of 8 sediment variables (temperature, redox potential at 1 and 6 cm depth [R1 and R6], carbonate content [CO3], median grain size [ϕ], sediment sorting [IGSD: inclusive graphic standard deviation] and organic matter content [OM]) was studied. The maps obtained were compared with those calculated for the biological variables of L. depurator using Mantel and partial Mantel tests. Distribution characteristics of this species were significantly affected by most sediment variables considered, particularly by temperature, organic matter content and redox potential, although overall the correlation level was low, coinciding with the generalist ecological role and opportunistic behaviour of the species. Density and biomass, as well as residuals, presented a negative correlation with the sorting coefficient (IGSD) and with carbonates. In relation to IGSD, high densities of L. depurator were found in homogeneous sediments. Residuals (size structure of the population) were significantly correlated with grain size (ϕ), with larger individuals occurring in finer sediments, while juveniles were preferably found in areas with very fine sand sediments. Both density and biomass presented significant positive correlations with the redox potential, indicating that the species favoured well-oxygenated sediments with a low organic content We wish to thank all participants in the cruise GEODELTA on board RV ‘García del Cid’, especially its Chief Scientist, Dr. F. Sardà, for all help and facilities provided. This work was produced while M.M.R. had a PRAXIS PhD grant from the Portuguese government. Peer reviewed 2011-07-18T10:38:25Z 2011-07-18T10:38:25Z 2004-08-02 artículo http://purl.org/coar/resource_type/c_6501 Marine Ecology Progress Series 276: 223-235 (2004) 0171-8630 http://hdl.handle.net/10261/37817 10.3354/meps276223 1616-1599 en https://doi.org/10.3354/meps276223 open Inter Research |
| institution |
ICM ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-icm-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del ICM España |
| language |
English |
| topic |
Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution |
| spellingShingle |
Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution Rufino, Marta M. Maynou, Francesc Abelló, Pere Yule, Andrew B. Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| description |
13 pages, 8 figures, 5 tables |
| format |
artículo |
| topic_facet |
Geostatistics Sediment variables Liocarcinus depurator Portunidae Kriging Mantel test Temperatures Granulometry Spatial distribution |
| author |
Rufino, Marta M. Maynou, Francesc Abelló, Pere Yule, Andrew B. |
| author_facet |
Rufino, Marta M. Maynou, Francesc Abelló, Pere Yule, Andrew B. |
| author_sort |
Rufino, Marta M. |
| title |
Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| title_short |
Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| title_full |
Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| title_fullStr |
Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| title_full_unstemmed |
Small-scale non-linear geostatistical analysis of Liocarcinus depurator (Crustacea: Brachyura) abundance and size structure in a western Mediterranean population |
| title_sort |
small-scale non-linear geostatistical analysis of liocarcinus depurator (crustacea: brachyura) abundance and size structure in a western mediterranean population |
| publisher |
Inter Research |
| publishDate |
2004-08-02 |
| url |
http://hdl.handle.net/10261/37817 |
| work_keys_str_mv |
AT rufinomartam smallscalenonlineargeostatisticalanalysisofliocarcinusdepuratorcrustaceabrachyuraabundanceandsizestructureinawesternmediterraneanpopulation AT maynoufrancesc smallscalenonlineargeostatisticalanalysisofliocarcinusdepuratorcrustaceabrachyuraabundanceandsizestructureinawesternmediterraneanpopulation AT abellopere smallscalenonlineargeostatisticalanalysisofliocarcinusdepuratorcrustaceabrachyuraabundanceandsizestructureinawesternmediterraneanpopulation AT yuleandrewb smallscalenonlineargeostatisticalanalysisofliocarcinusdepuratorcrustaceabrachyuraabundanceandsizestructureinawesternmediterraneanpopulation |
| _version_ |
1777665796369022976 |