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          Institute: MPI für Evolutionsbiologie     Collection: Evolutionary ecology     Display Documents



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ID: 403399.0, MPI für Evolutionsbiologie / Evolutionary ecology
Multivariate analyses of the biometric features from Philippine sardines – implications for the phylogenetic relationships of the freshwater Sardinella tawilis (Teleostei, Clupeomorpha)
Authors:Samonte, Irene E.; Canlas, Racelle Ann; Alvia, Kenneth; Carvajal, Thaddeus; Pagulayan, Roberto C.
Language:English
Date of Publication (YYYY-MM-DD):2009-02
Title of Journal:Journal of Zoological Systematics and Evolutionary Research
Journal Abbrev.:J Zool Syst Evol Res
Volume:47
Issue / Number:1
Start Page:21
End Page:24
Review Status:not specified
Audience:Not Specified
Abstract / Description:Philippine sardines are members of the commercially important Sardinella genus (Family Clupeidae). Sardines are mostly marine species with a very few exception like the Philippine freshwater sardine, Sardinella tawilis, of Lake Taal. This species is believed to have immigrated from Balayan Bay some 250 years ago. To determine the relationship of freshwater S. tawilis to the marine forms, 35 biometric features were investigated. The variables were subjected to univariate (mean, standard deviation and coefficient of variance) and multivariate analyses [Principal Component Analysis (PCA) and Hierarchical Cluster Analysis]. Results from univariate tests revealed that the number of ventral fin ray can discriminate Sardinella lemuru from the rest of the sardines. Multivariate PCA, on the other hand, showed discrete separation of the marine sardines. Sardinella tawilis, however, cannot be clearly separated from the marine species, Sardinella albella. The same clustering was recovered in HCA, thus providing evidence that S. albella is the closest marine relative of the freshwater S. tawilis.
Free Keywords:Sardinella tawilis; multivariate analyses; Hierarchical Cluster Analysis; biometrics; Lake Taal; PCA
External Publication Status:published
Document Type:Article
Affiliations:MPI für Evolutionsbiologie/Abt. Evolutionsökologie
External Affiliations:Biology Department, and Center for Natural Sciences and Environmental Research (CENSER), College of Science, De La Salle University, Manila, Philippines;AUF Center for Planning, Research, and Development, Angeles University Foundation, Angeles City, Philippines
Identifiers:ISSN:0044-3808; 0947-5745 (print) [ID-No:1]
ISSN:1439-0469 (online) [ID-No:2]
DOI:10.1111/j.1439-0469.2008.00517.x [ID-No:3]
LOCALID:2678/S 38963 [Listen-Nummer/S-Nummer]
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