Bottle Nosed Dolphin
1. Citation:
Authors: Stefan Miedler, Andreas Fahlman, Monica Valls Torres, Teresa Alvaro Alvarez, and Daniel Garcia Parraga
Year published: 2015
Title of the Article: Evaluating cardiac physiology through echocardiography in bottlenose dolphins: using stroke volume and cardiac output to estimate systolic left ventricular function during rest and following exercise
Journal: Journal of Experimental Biology
Volume: 218
Page numbers: 3604-3610
2. Research Sponsor:
a. The authors of this experiment did it all in their free time, not affiliated with any institutions.
b. This project did not receive any external funding, but the cost of the animal care, and salary for trainers and veterinarians was provided by Oceanographic.
3. Study Organism: The organism studied in this experiment was the bottle nosed dolphin, specifically its aortic valve and left ventricle.
4. What the authors are studying: This paper is investigating the stroke volume and cardiac output of bottle nose dolphins at rest and 1, 3, and 4 minutes after exercise. They used “transthoracic ultrasound Doppler’s at the level of the aortic valve” to “compare blood flow velocities in the left …show more content…
Brief summary: In this experiment the scientists were able to clearly outline the effects that low and high exercise levels have on cardio output, through means of echocardiography tests 1, 3, and 4 minutes after exercise. The scientists were able to conclude that after exercise dolphin’s heart rate and stroke volume increases to compensate for the extra needed cardiac output. The heart rate was clearly doing most of the compensation according to their data, but although the stroke volume increase was not as large as the heart rates, the increase was still significant enough to significantly affect the results. A finding that raised more questions was that the increase between resting and exercise was not as large as originally thought that will most likely be addressed in later studies by this groundbreaking
Authors: Stefan Miedler, Andreas Fahlman, Monica Valls Torres, Teresa Alvaro Alvarez, and Daniel Garcia Parraga
Year published: 2015
Title of the Article: Evaluating cardiac physiology through echocardiography in bottlenose dolphins: using stroke volume and cardiac output to estimate systolic left ventricular function during rest and following exercise
Journal: Journal of Experimental Biology
Volume: 218
Page numbers: 3604-3610
2. Research Sponsor:
a. The authors of this experiment did it all in their free time, not affiliated with any institutions.
b. This project did not receive any external funding, but the cost of the animal care, and salary for trainers and veterinarians was provided by Oceanographic.
3. Study Organism: The organism studied in this experiment was the bottle nosed dolphin, specifically its aortic valve and left ventricle.
4. What the authors are studying: This paper is investigating the stroke volume and cardiac output of bottle nose dolphins at rest and 1, 3, and 4 minutes after exercise. They used “transthoracic ultrasound Doppler’s at the level of the aortic valve” to “compare blood flow velocities in the left …show more content…
Brief summary: In this experiment the scientists were able to clearly outline the effects that low and high exercise levels have on cardio output, through means of echocardiography tests 1, 3, and 4 minutes after exercise. The scientists were able to conclude that after exercise dolphin’s heart rate and stroke volume increases to compensate for the extra needed cardiac output. The heart rate was clearly doing most of the compensation according to their data, but although the stroke volume increase was not as large as the heart rates, the increase was still significant enough to significantly affect the results. A finding that raised more questions was that the increase between resting and exercise was not as large as originally thought that will most likely be addressed in later studies by this groundbreaking