[MARMAM] Job Opportunity- Marine Turtle and Florida Manatee Management

2022-08-26 Thread Frederick, Christina
Greetings everyone,

The Florida Fish and Wildlife Conservation Commission (FWC) has several 
Biological Scientist positions available to aid the Imperiled Species 
Management Section with developing conservation measures to reduce potential 
adverse impacts to species under the responsibility of the Section, with a 
focus on Florida manatee, marine turtle conservation, and marine turtle 
lighting.

Please follow the below links to the job postings to learn more about these 
opportunities and apply:

BIOLOGICAL ADMINISTRATOR II A - SES - 77072661
https://jobs.myflorida.com/job/TALLAHASSEE-BIOLOGICAL-ADMINISTRATOR-II-A-SES-77072661-FL-32399/925182100/?from=email&refid=5388169800&utm_source=J2WEmail&source=2&eid=49500-202207200707-11272421300&locale=en_US

F & W BIOLOGICAL SCIENTIST IV - 77072664
https://jobs.myflorida.com/job/TALLAHASSEE-F-&-W-BIOLOGICAL-SCIENTIST-IV-77072664-FL-32399/925101700/

OPS-F&W Biological Scientist III - 77905065
https://jobs.myflorida.com/job/TALLAHASSEE-OPS-F&W-Biological-Scientist-III-77905065-FL-32399/927585600/

OPS-F & W Biological Scientist III - 77905015
https://jobs.myflorida.com/job/TALLAHASSEE-OPS-F-&-W-Biological-Scientist-III-77905015-FL-32399/925103200/


Sincerely,

Christina Phillips Frederick
Environmental Commenting Program Manager
Imperiled Species Management Section
Florida Fish and Wildlife Conservation Commission

Email: christina.freder...@myfwc.com
Phone: 850-922-4330
620 South Meridian Street - 6A
Tallahassee, FL 32399-1600

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[MARMAM] Last Minute Reminder - Registration open for Fall 2022 - Aquatic Animal Conservation Issues

2022-08-26 Thread Larkin,Iskande (Iske)
Hi All,

The University of Florida, College of Veterinary Medicine would like to send 
notice that registration for our fall online course is open.

Aquatic Animal Conservation Issues is an online course (3 credits) designed to 
introduce students (upper level undergraduate and graduate) and professionals 
(with an AA or higher degree) to the controversial issues surrounding aquatic 
animal species ranging from invertebrates to marine mammals, with an emphasis 
on marine mammals, but also including sea turtles, fisheries, and aquatic 
ecosystems. Students enrolled at any College or University within the US or 
internationally can take this course. For more information about this class or 
enrollment, contact Dr. Iske Larkin (ivlar...@ufl.edu 
).

If you are interested in taking this class, registration is now open for Fall 
(2022).

Registration will remain open through Tuesday August 30th, the last day of 
Drop/Add.  Class starts Wednesday August 24th and runs through Wednesday 
December 7th.
Sincerely,
Dr Larkin


[AAH logo blue E-Mail Sig]

Iske V. Larkin, PhD
Senior Lecturer & Education Coordinator
Director of Aquatic Animal Health Program
Department of Large Animal Clinical Sciences
College of Veterinary Medicine
University of Florida
PO Box 100136
2015 SW 16th Ave
Gainesville, Florida 32610

Office phone - 352-294-4095
Work cell - 352-494-1742
Fax - 352-392-8289
Program web page: http://aquatic.vetmed.ufl.edu

"To the world you might be one person, but to one person you might be the 
world." -Anonymous


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[MARMAM] New paper: Ecosystem shifts inferred from Antarctic fur seals stable isotopes

2022-08-26 Thread Renan Lima
Dear MARMAM community,

On behalf of my coauthors, I'm happy to share our new paper: "Ecosystem
shifts inferred from long-term stable isotope analysis of male Antarctic
fur seal *Arctocephalus gazella* teeth" which was recently published in the
Marine Ecology Progress Series.

de Lima RC, Cebuhar JD, Negrete J, Ferreira A, Secchi ER, Botta S (2022)
Ecosystem shifts inferred from long-term stable isotope analysis of male
Antarctic fur seal *Arctocephalus gazella* teeth. Mar Ecol Prog Ser
695:203-216. https://doi.org/10.3354/meps14112

ABSTRACT: The Atlantic sector of the Southern Ocean has been rapidly
changing over the last century. Many of those changes are driven by climate
anomalies such as the El Niño−Southern Oscillation and the Southern Annular
Mode, which affect biological processes that scale up the food web. We used
δ13C and δ15N time series of dentine growth layer groups (as a proxy of
individual foraging history from multiple years, n = 41 teeth) to assess
temporal shifts in foraging habits of subadult/adult male Antarctic fur
seals *Arctocephalus gazella* (AFSs) in 2 areas of high concentration of
Antarctic krill *Euphausia superba*: the South Shetland Islands and the
South Orkney Islands. Our analyses, which represent the first long-term
isotopic assessment of male AFS sampled in Antarctic waters, revealed a
significant decrease of δ13C (0.04‰ yr−1) from 1974 to 2015 and a decrease
of δ15N after the late 1990s. The observed changes are likely driven by
shifts in latitudinal and longitudinal distribution of krill and increased
incorporation of 15Nenriched sources (higher trophic level prey and/or
feeding in different areas) in the most recent period for reasons that are
not yet clear. We were able to trace ecosystem changes through isotopic
bio-archives of Antarctic fur seals, highlighting the role of this species
as an ecosystem indicator of the trophic cascade effects caused by climate
change in the Southern Ocean.

Please contact me (renan...@gmail.com)
for a copy or any questions.

Kind regards
Renan Lima

---
*Renan Costa de Lima, MSc*
Doutorando do Programa de Pós-Graduação em Oceanografia Biológica
Laboratório de Ecologia e Conservação da Megafauna Marinha - EcoMega
Instituto de Oceanografia
Universidade Federal do Rio Grande (FURG)

COMNAP Antarctic Fellow 2021

Fone: +55(53)99718994 | e-mail: renan...@gmail.com
www.researchgate.net/profile/Renan-Lima-2
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[MARMAM] New Publication: Trade-offs in prey quantity and quality in gray whale foraging

2022-08-26 Thread Hildebrand, Lisa
Dear MARMAM community,

My co-authors and I are pleased to announce the publication of our new
manuscript in Marine Ecology Progress Series.

Hildebrand, L., Sullivan, F.A., Orben, R.A., Derville, S., & Torres, L.G.
(2022). Trade-offs in prey quantity and quality in gray whale foraging.
Marine Ecology Progress Series 695:189-201. doi.org/10.3354/meps14115

Abstract
To forage optimally, predators face complex decisions regarding target prey
distribution, quantity, and quality. We paired theodolite tracking of gray
whales *Eschrichtius robustus* in Port Orford, Oregon, USA, with concurrent
sampling of their zooplankton prey to examine foraging decisions relative
to prey quantity (abundance) and quality (caloric content). We tested the
hypotheses that whales (1) feed more than search or transit in areas with
high quantity and quality prey and (2) select foraging habitat dominated by
the calorically rich mysid *Neomysis rayii*. Relative prey abundance was
assessed through standardized image analysis of camera drops, and
zooplankton prey community was determined from net tows. These data were
spatially interpolated and modeled to generate daily layers of
species-specific prey abundance and calories (20 m grid) for comparison to
whale behavior derived from tracking data. Whales fed significantly more in
areas with higher prey abundance and calories than where they searched and
transited. Whales increased foraging effort as overall prey availability
increased, yet foraging probability was significantly correlated with the
quantity and quality of the mysid *Holmesimysis sculpta*, which has
significantly lower calories than *N. rayii*. However, during the study
period, the maximum abundance of *N. rayii* was 4 times lower than that of *H.
sculpta* and never reached the quantity threshold determined by a logistic
regression needed to support whale foraging behavior. Hence, gray whale
prey selection involves trade-offs between prey quantity and quality to
maximize energetic gain, and prey quality should be considered alongside
abundance in ecological studies investigating predator decision-making.

Please contact lisa.hildebr...@oregonstate.edu if you would like a copy of
the manuscript or if you have any questions.

Best regards,

Lisa

-- 
Lisa Hildebrand, M.S. (she/her/hers)
PhD Student
Geospatial Ecology of Marine Megafauna Lab

Marine Mammal Institute and Dept. of Fisheries, Wildlife, & Conservation
Sciences
Oregon State University
MMI Profile  | GEMM Lab
Blog 
*Land Acknowledgement:* Oregon State University in Corvallis, OR is located
within the traditional homelands of the Mary's River or Ampinefu Band of
Kalapuya. Following the Willamette Valley Treaty of 1855 (Kalapuya etc.
Treaty), Kalapuya people were forcibly removed to reservations in Western
Oregon. Today, living descendants of these people are a part of the
Confederated Tribes of Grand Ronde Community of Oregon (
https://www.grandronde.org) and the Confederated Tribes of the Siletz
Indians (https://ctsi.nsn.us).
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