Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile
Four Chilean sandy beaches were sampled during the summer of 2000, to study the role of stranded algal wrack deposits on the population abundances of three detritus feeder species of the macroinfauna that inhabit the upper shore levels of that beaches: the talitrid amphipod Orchestoidea tuberculata...
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ftdoajarticles:oai:doaj.org/article:c52bbd6a0e4b436b966173b621f0544e 2023-05-15T13:34:09+02:00 Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile EDUARDO JARAMILLO ROSARIO DE LA HUZ CRISTIAN DUARTE HERALDO CONTRERAS 2006-09-01T00:00:00Z https://doaj.org/article/c52bbd6a0e4b436b966173b621f0544e EN eng BMC http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000300006 https://doaj.org/toc/0716-078X https://doaj.org/toc/0717-6317 0716-078X 0717-6317 https://doaj.org/article/c52bbd6a0e4b436b966173b621f0544e Revista Chilena de Historia Natural, Vol 79, Iss 3, Pp 337-351 (2006) depósitos de algas varadas artrópodos de playas arenosas costa chilena algal wrack deposits sandy beach arthropods Chilean coast Zoology QL1-991 Botany QK1-989 article 2006 ftdoajarticles 2022-12-31T04:27:04Z Four Chilean sandy beaches were sampled during the summer of 2000, to study the role of stranded algal wrack deposits on the population abundances of three detritus feeder species of the macroinfauna that inhabit the upper shore levels of that beaches: the talitrid amphipod Orchestoidea tuberculata Nicolet, the tylid isopod Tylos spinulosus Dana and the tenebrionid insect Phalerisida maculata Kulzer. The beaches were Apolillado (ca. 29° S), Quidico (ca. 38° S), Guabún and Mar Brava (ca. 42° S). Replicated samples were collected with a plastic cylinder (25 cm in diameter) from algal wrack deposits including the sediments beneath the wrack and nearby bare sand areas. Samples were collected at two beach levels, one closer to the sea with fresh deposits and other located on the upper beach with dry alga. Algal wrack deposits were mostly composed of the brown algae Macrocystis pyrifera (L.), Durvillaea antarctica (Chamisso) Hariot and Lessonia nigrescens Bory. O. tuberculata was found in the algal wrack deposits and bare sands collected from Apolillado, Quidico, Guabún and Mar Brava. On the other hand, T. spinulosus was just found at Apolillado, while P. maculata occurred in the sands beneath algal wrack deposits and bare sands collected from Apolillado, Quidico and Guabún. In general, the mean abundances of O. tuberculata, P. maculta and T. spinulosus were significantly higher in those samples collected from sands beneath algal wrack deposits; i.e., 56, 61 and 14 times higher (overall means) than in bare sands, respectively. It is concluded that stranded algal wrack deposits indeed promote an increase in population abundances of sandy beach detritus feeders, either because that deposits provide their main food source or shelter against variable environmental conditions (e.g., air temperature and humidity) during daylight hours. That might well explain the patchiness shown by these organisms, either across or along shore. This conclusion has important implications for sampling design of sandy beaches characterized by ... Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles De la Costa Sandy Beach ENVELOPE(-55.731,-55.731,49.917,49.917) The Beaches ENVELOPE(-56.832,-56.832,49.583,49.583) Bory ENVELOPE(40.372,40.372,64.489,64.489) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
depósitos de algas varadas artrópodos de playas arenosas costa chilena algal wrack deposits sandy beach arthropods Chilean coast Zoology QL1-991 Botany QK1-989 |
spellingShingle |
depósitos de algas varadas artrópodos de playas arenosas costa chilena algal wrack deposits sandy beach arthropods Chilean coast Zoology QL1-991 Botany QK1-989 EDUARDO JARAMILLO ROSARIO DE LA HUZ CRISTIAN DUARTE HERALDO CONTRERAS Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
topic_facet |
depósitos de algas varadas artrópodos de playas arenosas costa chilena algal wrack deposits sandy beach arthropods Chilean coast Zoology QL1-991 Botany QK1-989 |
description |
Four Chilean sandy beaches were sampled during the summer of 2000, to study the role of stranded algal wrack deposits on the population abundances of three detritus feeder species of the macroinfauna that inhabit the upper shore levels of that beaches: the talitrid amphipod Orchestoidea tuberculata Nicolet, the tylid isopod Tylos spinulosus Dana and the tenebrionid insect Phalerisida maculata Kulzer. The beaches were Apolillado (ca. 29° S), Quidico (ca. 38° S), Guabún and Mar Brava (ca. 42° S). Replicated samples were collected with a plastic cylinder (25 cm in diameter) from algal wrack deposits including the sediments beneath the wrack and nearby bare sand areas. Samples were collected at two beach levels, one closer to the sea with fresh deposits and other located on the upper beach with dry alga. Algal wrack deposits were mostly composed of the brown algae Macrocystis pyrifera (L.), Durvillaea antarctica (Chamisso) Hariot and Lessonia nigrescens Bory. O. tuberculata was found in the algal wrack deposits and bare sands collected from Apolillado, Quidico, Guabún and Mar Brava. On the other hand, T. spinulosus was just found at Apolillado, while P. maculata occurred in the sands beneath algal wrack deposits and bare sands collected from Apolillado, Quidico and Guabún. In general, the mean abundances of O. tuberculata, P. maculta and T. spinulosus were significantly higher in those samples collected from sands beneath algal wrack deposits; i.e., 56, 61 and 14 times higher (overall means) than in bare sands, respectively. It is concluded that stranded algal wrack deposits indeed promote an increase in population abundances of sandy beach detritus feeders, either because that deposits provide their main food source or shelter against variable environmental conditions (e.g., air temperature and humidity) during daylight hours. That might well explain the patchiness shown by these organisms, either across or along shore. This conclusion has important implications for sampling design of sandy beaches characterized by ... |
format |
Article in Journal/Newspaper |
author |
EDUARDO JARAMILLO ROSARIO DE LA HUZ CRISTIAN DUARTE HERALDO CONTRERAS |
author_facet |
EDUARDO JARAMILLO ROSARIO DE LA HUZ CRISTIAN DUARTE HERALDO CONTRERAS |
author_sort |
EDUARDO JARAMILLO |
title |
Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
title_short |
Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
title_full |
Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
title_fullStr |
Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
title_full_unstemmed |
Algal wrack deposits and macroinfaunal arthropods on sandy beaches of the Chilean coast Depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de Chile |
title_sort |
algal wrack deposits and macroinfaunal arthropods on sandy beaches of the chilean coast depósitos de algas varadas y artrópodos macroinfaunales en playas de arena de la costa de chile |
publisher |
BMC |
publishDate |
2006 |
url |
https://doaj.org/article/c52bbd6a0e4b436b966173b621f0544e |
long_lat |
ENVELOPE(-55.731,-55.731,49.917,49.917) ENVELOPE(-56.832,-56.832,49.583,49.583) ENVELOPE(40.372,40.372,64.489,64.489) |
geographic |
De la Costa Sandy Beach The Beaches Bory |
geographic_facet |
De la Costa Sandy Beach The Beaches Bory |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Revista Chilena de Historia Natural, Vol 79, Iss 3, Pp 337-351 (2006) |
op_relation |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000300006 https://doaj.org/toc/0716-078X https://doaj.org/toc/0717-6317 0716-078X 0717-6317 https://doaj.org/article/c52bbd6a0e4b436b966173b621f0544e |
_version_ |
1766049292934447104 |