Landmark-based Morphometric Analysis in Selected Species of Serranid Fishes (Perciformes: Teleostei)

幾種鮨魚（真骨魚類：鱸形目）地標點基礎之型態測量分析

Mauro José Cavalcanti ； Leandro Rabello Monteiro ； Paulo Roberto Duarte Lopes

《Zoological Studies》 38卷3期 (1999/07) Pp. 287-294

摘要

鮨科魚類中，隸屬於鮨亞科（Serraninae）的Dules auriga，Diplectrum formosum，D. radiale及石斑亞科（Epinephelinae）的Epinephelus marginatus，Mycteroperca acutirostris，M. bonaci等六種海生魚類，以薄板曲線幾何分析法與部份扭曲多變量分析法研究其種間之形態差異。將形狀變異解構為形狀改變的均勻性和非仿射性成分，顯示出在種間的主要差異是與此兩個成分相關。均勻性成分在種間有顯著差異，但這些成分無法清楚的將分類群做區分，而體高及尾柄長則可將種分離。體型非均勻性的改變可以清楚的區分出鮨亞科與石斑亞科。這些形態的改變可能與種間棲地與攝食習慣的差異相關。

關鍵字

鮨科 ； 網狀架構 ； 幾何形態 ； 部份扭曲分數 ； 多變量分析

並列摘要

Morphological differences among 6 species of marine fishes belonging to 2 subfamilies of the family Serranidae (Serraninae: Dules auriga, Diplectrum formosum, and D. radiale; Epinephelinae: Epinephelus marginatus, Mycteroperca acutirostris, and M. bonaci) were studied by the geometric morphometric method of thin-plate splines and multivariate analysis of partial-warp scores. The decomposition of shape variation into uniform and nonaffine components of shape change indicate that major differences among species are related to both components of shape variation. Significant differences were found among species with respect to the uniform components, but there is no clear separation of taxonomic groups related to these components, and species are instead separated on the basis of body height and caudal peduncle length. Non-uniform changes in body shape, in turn, clearly differentiate the species of Serraninae and Epinephelinae. These shape changes are probably related to differences in habitat and feeding habits among the species.

並列關鍵字

Serranidae ； Truss networks ； Geometric morphometrics ； Partial-warp scores ； Multivariate analysis