April 2016 MAINE COASTAL NEWS Page 13. M C F N
grounds. This new research underscores the complexity of stock structure for this species and identifi es important areas for future research.” The authors expect these findings
could potentially lead to a lower estimated age-at-maturity, a critical component of the stock assessment, and could reopen con- sideration of the nature and level of mixing between the western and eastern Atlantic populations. This new information will be considered along with other pertinent re- search as part of the regular ICCAT SCRS stock assessment process. The scientifi c team for this study com-
prises researchers from NOAA’s Northeast Fisheries Science Center (NEFSC) and Alaska Fisheries Science Center (AFSC), the Large Pelagics Research Center at the University of Massachusetts Boston, the School of Marine Science and Technology at the University of Massachusetts Dartmouth, and NOAA’s Greater Atlantic Regional Fisheries Offi ce (GARFO). The sampling for this study was supported by NOAA, the Bureau of Ocean Energy Management, and the US Navy through interagency agree- ments for the Atlantic Marine Assessment Program for Protected Species (AMAPPS).
ASMFC Initiates Socioeconomic Study on Atlantic Menhaden Commercial Fisheries
ARLINGTON, VA – The Atlantic States Marine Fisheries Commission has awarded funding to a research team headed by Dr. John Whitehead of Appalachian State Uni- versity and Dr. Jane Harrison from North Carolina Sea Grant to conduct a socioeco- nomic study of Atlantic menhaden commer- cial fi sheries. The study is intended to char- acterize the coastwide commercial fi sheries, including bait and reduction sectors and the fi shing communities they support. “We are excited for this opportunity to
provide the Commission with these critical data which will characterize the socioeco- nomic dimensions of menhaden fi sheries stakeholders to help managers better un- derstand management impacts,” stated Dr. Harrison. The principle objective of the study is to
analyze data from participants in the Atlantic menhaden commercial industry. The At- lantic menhaden reduction fi shery industry converts menhaden into fi shmeal and fi sh oil, while the bait fi shery industry supports
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other commercial (e.g. American lobster, blue crab) and recreational fi sheries (e.g. striped bass, bluefi sh). Case studies along the Atlantic coast will link the harvesting, processing, and distribution sectors across the supply chain. Information on landing trends, industry participation, and social leadership and organizations will also be an- alyzed. Over the next month, ASMFC staff will be working with the research team to identify and reach out to fi shery participants. The full proposal can be found on
the Commission’s website at http://www.
asmfc.org/files/Science/MenhadenSocio- economicAnalysisProposal_Addendum_ March2016.pdf. For more information, please contact Shanna Madsen, Fisheries Science Coordinator, at smadsen@asmfc. org or 703.842.0740.
NOAA’s Marine Mammal Acoustic Technical Guidance
Status of NOAA’s Technical Guidance for Assessing the Eff ects of Anthropogenic Sound on Marine Mammals The National Oceanic and Atmospheric Administration (NOAA) is holding a third public comment period on a stand-alone document containing proposed changes to our draft acoustic guidance for assessing the eff ects of anthropogenic sound on marine mammal species under our jurisdiction. While NOAA was working to address
public comments from the second public comment period and fi nalize the Guidance, NOAA and the Navy further evaluated cer- tain aspects of the U.S. Navy’s methodology (Appendix A of Draft Guidance). As a result, several recommendations/modifications were suggested. After consideration of these recommendations. NOAA has revised the Draft Guidance to refl ect these suggested changes and is proposing to solicit public comment on these changes via a focused public comment period. The third public comment period will
last 14-days and begin on March 16. Com- ment now (Note: Please be sure to comment on the document containing the proposed changes to the Guidance, which is a 24-page stand-alone document separate from the July 2015 Draft Guidance. All other aspects of the Guidance remain unchanged). Before the Guidance is fi nalized (antic-
ipated May 2016), NOAA will address all substantive comments received from the ini- tial and second public comment periods, as
well as those from this focused third public comment period. There is no need to reiter- ate or resubmit comments made during the fi rst and second public comment periods on other sections of the Draft Guidance. NOAA encourages the public to focus comment on the proposed changes to the document. Purpose of the Acoustic Guidance The Technical Guidance provides acoustic threshold levels for onset of permanent threshold shift (PTS) and temporary thresh- old shifts (TTS) for all sound sources. It is intended to be used by NOAA analysts/ managers and other relevant user groups/ stakeholders, including other federal agen- cies to better predict a marine mammal’s response to sound exposure. The manner of response has the potential to trigger certain requirements under one or more of NOAA’s statutes (MMPA, ESA, and National Marine Sanctuaries Act). To develop these acoustic threshold
levels, NOAA has compiled, interpreted, and synthesized best available information currently available on the eff ects of anthro- pogenic sound on marine mammals, as well as developed a method for updating these levels through a systematic, transparent process. The document outlines NOAA’s updated acoustic threshold levels and de- scribes in detail how the thresholds were developed and how they will be updated in
Commercial Fishing News
the future. Due to the complexity and variability
of marine mammal behavioral responses, NOAA will continue to work over the next year on developing guidance regarding the eff ects of anthropogenic sound on marine mammal behavior. Process to Develop Acoustic Technical
Continued on Page 20.
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