Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundance of th...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2006-02-01
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| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67 |
| _version_ | 1797278629625856000 |
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| author | FJ González-Medina OE Holguín-Quiñonez G De la cruz-Agüero |
| author_facet | FJ González-Medina OE Holguín-Quiñonez G De la cruz-Agüero |
| author_sort | FJ González-Medina |
| collection | DOAJ |
| description |
Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundance of the conspicuous macrobenthos (gastropods, bivalves and echinoderms) was estimated visually by free diving at 4–6 m depth along two band-transects parallel to the coastline. Each transect was 5 m wide and 50 m long, covering an area of 500 m2 per site. Sea surface temperature, wave exposure, type of substrate and slope were also recorded. Thirty-two species were identified. The echinoderms were the best represented group, with 18 species from 13 families, followed by the molluscs, with 14 species from 13 families. The highest mean abundance and density values were recorded for Tripneustes depressus (140.25 ± 64.21 ind and 0.28 ind m–2, respectively). There were no significant differences indiversity, equitability and species richness among sampling months, though differences were found among sites (P < 0.05). A spatial diversity pattern was identified, with low values (0.4 bits ind–1) for exposed shores and high values (2.0 bits ind–1) for semi-protected areas.
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| first_indexed | 2024-03-07T16:11:05Z |
| format | Article |
| id | doaj.art-70ca5ae64dfa48c79c755b135792ef7e |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:11:05Z |
| publishDate | 2006-02-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-70ca5ae64dfa48c79c755b135792ef7e2024-03-04T16:46:10ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532006-02-0132110.7773/cm.v32i1.67Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.FJ González-Medina0OE Holguín-Quiñonez1G De la cruz-Agüero2Instituto Politécnico NacionalInstituto Politécnico NacionalInstituto Politécnico Nacional Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundance of the conspicuous macrobenthos (gastropods, bivalves and echinoderms) was estimated visually by free diving at 4–6 m depth along two band-transects parallel to the coastline. Each transect was 5 m wide and 50 m long, covering an area of 500 m2 per site. Sea surface temperature, wave exposure, type of substrate and slope were also recorded. Thirty-two species were identified. The echinoderms were the best represented group, with 18 species from 13 families, followed by the molluscs, with 14 species from 13 families. The highest mean abundance and density values were recorded for Tripneustes depressus (140.25 ± 64.21 ind and 0.28 ind m–2, respectively). There were no significant differences indiversity, equitability and species richness among sampling months, though differences were found among sites (P < 0.05). A spatial diversity pattern was identified, with low values (0.4 bits ind–1) for exposed shores and high values (2.0 bits ind–1) for semi-protected areas. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67structurecommunitymolluscsechinodermsarchipelago |
| spellingShingle | FJ González-Medina OE Holguín-Quiñonez G De la cruz-Agüero Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. Ciencias Marinas structure community molluscs echinoderms archipelago |
| title | Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. |
| title_full | Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. |
| title_fullStr | Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. |
| title_full_unstemmed | Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. |
| title_short | Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. |
| title_sort | spatiotemporal variability of some shallow bottom macroinvertebrates gastropoda bivalvia and echinodermata from espritu santo archipelago baja california sur mexico |
| topic | structure community molluscs echinoderms archipelago |
| url | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67 |
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