Chapter 1 of the interesting sounding book "The Ethics of Science: An Introduction" by David B. Resnik has a short introduction and a couple of examples:
The Ethics of Research: An Introduction - Chapter 1
An article for the NIH (National Institute of Environmental Health Sciences) by the same author, including a list of ethical principles in research and some more examples:
What Is Ethics in Research & Why Is It Important?
For a different perspective: An article by Ana M. Sobočan, Teresa Bertotti and Kim Strom-Gottfried about Ethical considerations in social work research for the European Journal of Social Work:
Ethical considerations in social work research
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Optionally, here are four examples of Codes/Guidlines that could be interesting to skim through. One by the DFG (Deutsche Forschungsgemeinschaft) about "good research practice" in general, one by the European Commission for Anthropology and Ethnography [maybe closest to our field], a short one by ISA (International Sociological Association) and the Nuremberg code with its 10 principles for medical research.
Guidelines for Safeguarding Good Research Practice. Code of Conduct
Research Ethics in Ethnography/Anthropology
ISA - Code of ethics
The Nuremberg Code
I realized, that I seemingly forgot to provide my presentation on Animal-ethics last semester. So here it is, sorry for the delay. Maybe we can try to find parallels.
Also, this book sounded very promising, but I couldn't find an open-access version:
Handbook of Research Ethics and Scientific Integrity by Ron Iphofen