Fish assemblages associated with shallow, fringing coral communities in sub-tropical Hong Kong : species composition, spatial and temporal patterns

2000 ◽  
Author(s):  
Andrew S Cornish
2016 ◽  
Vol 28 (6) ◽  
pp. 1371-1380
Author(s):  
LI Qifang ◽  
◽  
YAN Yunzhi ◽  
CHU Ling ◽  
ZHU Ren ◽  
...  

Author(s):  
Fei Liu ◽  
Pengcheng Lin ◽  
Huanzhang Liu ◽  
Jun Wang

The spatial-temporal patterns of fish assemblages in lotic systems can provide useful information in developing effective conservation measures. This study aimed to explore the spatiotemporal changes in fish assemblage and their association with environmental factors in mountain streams of Ren River, southwest China. Filed investigations were conducted at 18 sites during rainy and dry season in 2017. A total of 21 species, belonged to 3 orders, 8 families and 19 genera, were collected. Analysis of similarities (ANOSIM) showed fish assemblages structure varied significantly at the spatial scale, but not at the temporal scale. In low order sites, fish assemblages were mainly dominated by cold water and rheophilic species (e.g. Rhynchocypris oxycephalus, Scaphesthes macrolepis, Metahomaloptera omeiensis and Gnathopogon herzensteini), while those in high order sites were predominated by warm water and eurytopicity or stagnophilic species (e.g. Squalidus argentatus, Hemiculter leucisculus and Zacco platypus). Canonical correspondence analysis (CCA) showed fish assemblages were structured by a combination of large-scale landscape factors (e.g. altitude and C-link) and small-scale habitat features (e.g. channel width, water temperature and depth). Among these factors, landscape factors had the greatest influence on fish assemblage, while local habitat measures played less important roles or just acted in certain season.


2009 ◽  
Vol 69 (2 suppl) ◽  
pp. 517-527 ◽  
Author(s):  
GM. Pauleto ◽  
LFM. Velho ◽  
PRB. Buosi ◽  
AFS. Brão ◽  
FA. Lansac-Tôha ◽  
...  

Spatial and temporal patterns of plankton ciliates species composition in the Paraná River floodplain were investigated. Samplings were carried out in twelve environments in two distinct hydrological periods (limnophase and potamophase). A total of 61 species of ciliates were recorded, and among them 21 are classified as pelagic while 40 are considered preferentially as littoral species. The registered species belong to eleven orders, and among them, Prostomatida was the most specious followed by Hymenostomatida and Peritrichida. The ciliate species composition was significantly distinct between periods, but not among environments. In this way, typically pelagic species characterized the ciliate community during the limnophase period, while the littoral species were predominant during the potamophase period. Our results strongly support the idea of the flood pulse as the main factor driving the composition pattern of the planktonic ciliates community in the Paraná River floodplain.


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