The lakes of Chiloé Island have a high dissolved organic carbon concentration (known as “humic”) and show a connection with brackish water. They also display a high species richness of crustacean zooplankton. The aim of the present study is to characterize the potential factors that explain crustacean species richness in Chiloé Island lakes. To that purpose parameters of the abiotic environment were determined. The results of PCA performed on those data revealed the existence of three lakes with high crustacean species richness that are relatively deep, show high nitrogen concentrations, and are located at relatively high altitude. In contrast, there are two lakes with low species richness, high mineral concentration, and situated at low altitude. One of these lowland lakes gives rise to a river effluent to the sea, and it is connected to the other lake; these observations agree with the results of a performed cluster analysis. Nevertheless, the co-occurrence null model analysis revealed the absence of regulator patterns in species associations, which could be explained to the fact that many of the species occur in most of the lakes. These results are markedly different in comparison to Patagonian lakes of Argentina and Chile that have a low crustacean species number.

De Los Rios, P., Kies, F. (2018). Crustacean zooplankton communities in Chiloé Island coastal lakes (42°S, Chile). CRUSTACEANA, 91(2), 213-223 [10.1163/15685403-00003766].

Crustacean zooplankton communities in Chiloé Island coastal lakes (42°S, Chile)

Kies, F
2018

Abstract

The lakes of Chiloé Island have a high dissolved organic carbon concentration (known as “humic”) and show a connection with brackish water. They also display a high species richness of crustacean zooplankton. The aim of the present study is to characterize the potential factors that explain crustacean species richness in Chiloé Island lakes. To that purpose parameters of the abiotic environment were determined. The results of PCA performed on those data revealed the existence of three lakes with high crustacean species richness that are relatively deep, show high nitrogen concentrations, and are located at relatively high altitude. In contrast, there are two lakes with low species richness, high mineral concentration, and situated at low altitude. One of these lowland lakes gives rise to a river effluent to the sea, and it is connected to the other lake; these observations agree with the results of a performed cluster analysis. Nevertheless, the co-occurrence null model analysis revealed the absence of regulator patterns in species associations, which could be explained to the fact that many of the species occur in most of the lakes. These results are markedly different in comparison to Patagonian lakes of Argentina and Chile that have a low crustacean species number.
Articolo in rivista - Articolo scientifico
lakes of Chiloé, Chile, crustacean zooplankton, nutrients
lacs de Chiloé, Chili, zooplancton de crustacés, nutriments
English
gen-2018
2018
91
2
213
223
1
open
De Los Rios, P., Kies, F. (2018). Crustacean zooplankton communities in Chiloé Island coastal lakes (42°S, Chile). CRUSTACEANA, 91(2), 213-223 [10.1163/15685403-00003766].
File in questo prodotto:
File Dimensione Formato  
3_CRUSTACEAN ZOOPL..pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Dimensione 627.05 kB
Formato Adobe PDF
627.05 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/175623
Citazioni
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 2
Social impact