Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)

Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)

The spatial variability of Echinometra lucunter, Lytechinus variegatus and Arbacia lixula was studied in relation to four spatial scales (105, 104, 103 and 102 m) and two depths (0–3 and 3–8 m), along 100 km of the São  Paulo coastline (August to October 1996). Echinometra lucunter was the...

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मुख्य लेखकों: Sánchez-Jérez, P, Cesar, A, Cortez, FS, Pereira, CDS, Silva, SLR
स्वरूप: Online
भाषा:eng
प्रकाशित: Iniversidad Autónoma de Baja California 2001
ऑनलाइन पहुंच:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/371
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spelling oai:cienciasmarinas.com.mx:article-3712019-05-14T18:20:07Z Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil) Distribución espacial de las poblaciones de erizos más abundantes de la costa sudeste del litoral de São Paulo (Brasil) Sánchez-Jérez, P Cesar, A Cortez, FS Pereira, CDS Silva, SLR sea urchins spatial distribution Brazil Atlantic Ocean erizos distribución espacial Brasil Océano Atlántico The spatial variability of Echinometra lucunter, Lytechinus variegatus and Arbacia lixula was studied in relation to four spatial scales (105, 104, 103 and 102 m) and two depths (0–3 and 3–8 m), along 100 km of the São  Paulo coastline (August to October 1996). Echinometra lucunter was the most abundant species, with preference for shallow substrates subject to wave action. An abundance gradient was identified, increasing from southwest to northeast. Arbacia lixula showed the same pattern of spatial variation, but was more abundant in the deeper areas. Both species showed significant differences on a spatial scale of hundreds of meters, and E. lucunter also on a scale of kilometers. Lytechinus variegates presented a patchy distribution, being more abundant at certain sites. Variations in the water quality and natural heterogeneity of the habitat may explain the spatial distribution of these populations. Se investigó la variación espacial en la abundancia de Echinometra lucunter, Lytechinus variegatus y Arbacia lixula con respecto a cuatro escalas espaciales (105, 104, 103 y 102 m) y dos profundidades (0–3 y 3–8 m), a lo largo de 100 km del litoral de São Paulo (agosto a octubre de 1996). Echinometra lucunter fue la especie más abundante, prefiriendo los fondos más someros bajo el efecto del oleaje. Se identificó un gradiente en su abundancia, aumentando en dirección del suroeste al noreste. Arbacia lixula mostró el mismo gradiente, pero con una mayor abundancia en el sector más profundo. Ambas especies mostraron diferencias significativas a una escala espacial de centenares de metros y E. lucunter también a una escala de kilómetros. Lytechinus variegatus mostró un patrón en mosaico, siendo abundante en ciertos sitios. Las variaciones en la calidad del agua y en la heterogeneidad natural del hábitat podrían explicar de forma conjunta la distribución espacial de estas poblaciones. Iniversidad Autónoma de Baja California 2001-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/371 10.7773/cm.v27i1.371 Ciencias Marinas; Vol. 27 No. 1 (2001); 139-153 Ciencias Marinas; Vol. 27 Núm. 1 (2001); 139-153 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/371/319
institution Ciencias Marinas
collection OJS
language eng
format Online
author Sánchez-Jérez, P
Cesar, A
Cortez, FS
Pereira, CDS
Silva, SLR
spellingShingle Sánchez-Jérez, P
Cesar, A
Cortez, FS
Pereira, CDS
Silva, SLR
Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
author_facet Sánchez-Jérez, P
Cesar, A
Cortez, FS
Pereira, CDS
Silva, SLR
author_sort Sánchez-Jérez, P
title Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
title_short Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
title_full Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
title_fullStr Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
title_full_unstemmed Spatial distribution of the most abundant sea urchin populations on the southeast coast of Sao Paulo (Brazil)
title_sort spatial distribution of the most abundant sea urchin populations on the southeast coast of sao paulo (brazil)
description The spatial variability of Echinometra lucunter, Lytechinus variegatus and Arbacia lixula was studied in relation to four spatial scales (105, 104, 103 and 102 m) and two depths (0–3 and 3–8 m), along 100 km of the São  Paulo coastline (August to October 1996). Echinometra lucunter was the most abundant species, with preference for shallow substrates subject to wave action. An abundance gradient was identified, increasing from southwest to northeast. Arbacia lixula showed the same pattern of spatial variation, but was more abundant in the deeper areas. Both species showed significant differences on a spatial scale of hundreds of meters, and E. lucunter also on a scale of kilometers. Lytechinus variegates presented a patchy distribution, being more abundant at certain sites. Variations in the water quality and natural heterogeneity of the habitat may explain the spatial distribution of these populations.
publisher Iniversidad Autónoma de Baja California
publishDate 2001
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/371
_version_ 1715723960756207616

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