Comparative Morphology

Comparative morphology is the study of the anatomical patterns of structures within an organism’s body and how it allows the taxonomical categorization of a species. The anatomy of an organism is significant to the functions of that particular body part of the organism (Kardong, 2015). To be able to compare the structures of an organism allows emphasis in particular themes of the vertebrae structures. The functional morphology of an organism includes the study of the relationships between particular structures of that organism’s bodily functions. Because form follows function, the function of an organ, tissue, or body part dictates its form (Kardong, 2015). This paper will be comparing the study of fin similarities and differences of the …show more content…
Paired pectoral fins have evolved overtime to allow the Gadus fish to turn more steadily during locomotion and demonstrate the variations in pectoral fins genetics which gives them power in locomotion. The pectoral fins angle of inclination at the insertion point have evolved closer to their center of mass and are positioned mid dorsal on the Gadus fish. This allows significantly greater lateral directive forces that assist the fish and turning maneuvers. To decelerate most ray-finned fish outstretch both pectoral fins simultaneously to create a drag force. In Lepisosteus fish the horizontally positioned pectoral fins have a breaking force in sync with the later. In Gadus fishes the pectoral fins are dorsolateral placed causing a smooth deceleration (Drucker, 2002). Pectoral fin morphology has shown to have a significant impact on swimming performance. Their function is related in a way that influences the pectoral fin shape, maneuverability, and swimming …show more content…
In the Lepisosteus phyla there are no dorsal fins present. The first dorsal fin is found in the Teleostei phyla. The dorsal fin is essential in steady swimming and maneuvering while producing a sturdy locomotor force. Function of the dorsal fin arch in teleost, demonstrate the morphological features of their locomotive design. Overtime, the Gadus teleost have evolved into having three dorsal fins. These fins control locomotive forces that allow for beneficial hydrodynamic maneuverability amongst this species. A semi flexible fin reinforced by fin-rays, an interior section reinforced by inflexible spines, and a soft-rayed segment makes up the dorsal fin. Dorsal fins of ray-finned fishes help to assist the fish in turning, breaking, and steady