The relative growth of a number of morphological dimensions of the South American freshwater crab Trichodactylusborellianus (Trichodactylidae) were compared and related to sexual dimorphism. Crabs were collected from ponds in the Middle Paraná River in Argentina. A regression model with segmented relationship was used to test for relative growth between these measurements where breakpoints infe...

forty-nine preserved specimens (31 male and 18 female) of trachylepis aurata transcaucsasica were examined with respect to metric and meristic features and dry skull anatomy to assess sexual dimorphism. thirty-one morphological characters and 36 anatomical characters in dry skulls were examined. subdigital lamellae under the forth toe, neck length, neck length/snout vent length, and six skull c...

background: considering differences in head size and shape of different equine breeds, biometric parameters can be an attribute to a particular race. objectives: the purpose of the present paper is to give a numerical definition of morphological characteristics of head region of the darehshori horse. methods: twenty mature darehshori horses were studied biometrically. the ear length, ears dista...

OBJECTIVES The aim of the investigation was to examine the forms of the crowns in the maxillary anterior tooth segment and corresponding gingival characteristics among healthy Taiwanese subjects. MATERIALS AND METHODS The crown width at the apical third (CW), length (CL), gingival angle (GA) and the interdental papilla height were assessed from the diagnostic stone model using a calibrated pe...

Carapace length frequency data of green tiger prawn, Penaeus semisulcatus, were monthly collected from 50 stations along the coastal waters of Bushehr, Persian Gulf, during January 2003 to March2004. FiSAT program was used to analysea total of 535 shrimp’s including292 females and 243 males, for the relationships of total length, weight and carapace length. The L¥ and K for males were estimated...

Carapace length frequency data of green tiger prawn, Penaeus semisulcatus, were monthly collected from 50 stations along the coastal waters of Bushehr, Persian Gulf, during January 2003 to March2004. FiSAT program was used to analysea total of 535 shrimp’s including292 females and 243 males, for the relationships of total length, weight and carapace length. The L¥ and K for males were...

Otoliths are considered as very useful structures of fishes for various studies. This investigation was aimed to compare morphometric parameters between right and left otoliths of males and females fishes amongst four species belong to the family Carangidae from the northern Persian Gulf. The morphometric parameters such as weight, length, width, area and perimeter were measured and then compar...

Otoliths are considered as very useful structures of fishes for various studies. This investigation aimed to compare the morphometric parameters between the right and left otoliths of male and female specimens of four species of the fishes belonging to the family Carangidae from the northern Persian Gulf. The morphometric parameters such as weight, length, width, area and perimeter of sagittal ...

Size and shape of mandibles from 8 common species of copepods in Norwegian coastal waters are described, with the aim of using gut contents of copepod mandibles as a precise technique of quantifying predation rates on copepods. The carapace length of 7 of the 8 copepod species could be closely predicted from a general h e a r regression equation of carapace length versus mandible width. The exc...