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November 2022

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New publication on demography of Antarctic minke whales along Antarctic peninsula
by Logan Pallin 01 Nov '22

01 Nov '22

Greetings: My co-authors and I are pleased to announce the publication of our open access paper in Royal Society Open Science: Pallin L., Bierlich K. C., Durban J., Fearnbach H., Savenko O., Baker C. S., Bell E., Double M. C., de la Mare W., Goldbogen J., Johnston D., Kellar N., Nichols R., Nowacek D., Read A. J., Steel D. and Friedlaender A. 2022. Demography of an ice-obligate mysticete in a region of rapid environmental change. R. Soc. open sci. 9, 220724. http://doi.org/10.1098/rsos.220724 Abstract: Antarctic minke whales (Balaenoptera bonaerensis, AMW) are an abundant, ice-dependent species susceptible to rapid climatic changes occurring in parts of the Antarctic. Here, we used remote biopsy samples and estimates of length derived from unoccupied aircraft system (UAS) to characterize for the first time the sex ratio, maturity, and pregnancy rates of AMWs around the Western Antarctic Peninsula (WAP). DNA profiling of 82 biopsy samples (2013–2020) identified 29 individual males and 40 individual females. Blubber progesterone levels indicated 59% of all sampled females were pregnant, irrespective of maturity. When corrected for sexual maturity, the median pregnancy rate was 92.3%, indicating that most mature females become pregnant each year. We measured 68 individuals by UAS (mean = 8.04 m) and estimated that 66.5% of females were mature. This study provides the first data on the demography of AMWs along the WAP and represents the first use of non-lethal approaches to studying this species. Furthermore, these results provide baselines against which future changes in population status can be assessed in this rapidly changing marine ecosystem. cheers, Logan ____________________________________________________ *Logan J. Pallin, Ph.D.* Bio-Telemetry & Behavioral Ecology Lab <https://btbel.pbsci.ucsc.edu/logan-pallin/> Department of Ecology and Evolutionary Biology The University of California, Santa Cruz 115 McAllister Way, Santa Cruz, CA 95060 lpallin(a)ucsc.edu | (*he/him/his*)

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SEAMAMMS 2023 Abstract Deadline in 2 Weeks!
by Seamamms 2023 01 Nov '22

01 Nov '22

This is a reminder that abstracts for the 2023 Southeast and Mid-Atlantic Marine Mammal Symposium (SEAMAMMS) are due *two weeks from today*! The symposium will be held at the University of South Alabama in Mobile, Alabama, on March 17-19, 2023. More information can be found at https://seamamms.wordpress.com/ Selection of abstracts will be made through anonymous peer review. Preference will be given to marine mammal research conducted by students and early-career professionals based in, or working on issues relevant to, the Mid-Atlantic or Southeast United States. Other presentations will be considered if space is available. Requirements: - Oral Presentation: 12-minute PowerPoint presentation and 3 minutes for questions - Poster Presentation: Maximum poster size should be 48’ x 48’ - Abstract Submission: Submit a Microsoft Word file to seamamms(a)gmail.com with the following information: - Presenter’s Full Name - Preferred Presentation Format: Oral or Poster - Are you a student? Yes or No - If a student, what level? Undergraduate, Graduate, Other - What category best fits your abstract (select one): 1. Behavior 2. Morphology, Physiology, & Strandings 3. Distribution & Abundance 4. Education & Conservation 5. Other (explain): ____________________________ - Presentation Title - Author List (Last name, first name, middle initial) - Author Affiliation (in same order as ‘Author List’) - Abstract (maximum of 300 words) Due Date: November 15th, 2022 11:59 PM CST Decisions will be emailed by December 15th, 2022. Please reach out to seamamms(a)gmail.com with any questions or clarifications. Thank you! SEAMAMMS 2023 Planning Committee

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