1. Ackleh AS, Ioup GE, Ioup JW, Ma B, Newcomb JJ, Pal N, Sidorovskaia NA, Tiemann C (2012) Assessing the deepwater horizon oil spill impact on marine mammal population through acoustics: endangered sperm whales. J Acoust Soc Am 131(3):2306–2314
2. Banks JE, Stark JD, Vargas RI, Ackleh AS (2014) Deconstructing the surrogate species concept: a life history approach to the protection of ecosystem services. Ecol Appl 24(4):770–778
3. Barlow J, Swartz SL, Eagle TC, Wade PR (1995) U.S. marine mammal stock assessments: guidelines for preparation, background, and a summary of the 1995 assessments. NOAA Tech. Memo. NMFS-OPR 6:73
4. Best PB, Canham PAS, Macleod N (1984) Patterns of reproduction in sperm whales, physeter macrocephalus. Rep Int Whal Comm 6:51–79
5. Birge WJ, Black JA, Westerman AG (1979) Evaluation of aquatic pollutants using fish and amphibian eggs as bioassay organisms. In: Neilsen SW, Migaki G, Scar-pelli DG (eds), Animals as monitors of environmental pollutants. National Academy of Sciences, Washington, DC, pp 108–118