FALL 2013 Newsletter
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North Slope Borough Department of Wildlife Management Sketch by Jean Craighead George FALL 2013 VOL 5 NO 2 The Towline From the Director is number one on our list, and this new esti- mate will help considerably with future quo- The 2011 bowhead whale census was the ta renewals. most successful ever conducted with full Although the spring whaling season was visual, acoustic and aerial coverage of the poor due to wind and ice conditions, 14 bowhead migration. After two years of in- bowhead whales were landed in Barrow, tensive analysis, the new 2011 abundance Point Hope, Gambell and Savoonga. Also, estimate for the Bering-Chukchi-Beaufort congratulations goes out to all of the whalers Seas stock of bowhead whales was present- on a great fall whaling season, with 30 bow- ed at IWC 2013 in Korea. The estimate is head whales landed so far in Barrow, 16,892 with a “margin of error” between Kaktovik, Nuiqsut 15,704 to 18,928 whales. This means the and Wainwright! stock continues to grow at about 3.7% an- Thanks to all of nually, which indicates that the health sta- the hunters for shar- tus of this population is very good. ing their successful Census coordinators, Craig George and harvests, making our Robert Suydam, and all of us at NSB- upcoming holidays a DWM thank the whaling community, festive celebration! AEWC, NSB, NOAA, BP and other enti- Quyanaq, ties who have supported our research over Taqulik Hepa the years. Maintaining the bowhead quota Marine Mammal Health Program Inside this issue: This summer Raphaela Stim- started much later than in the past. melmayr, staff and interns contin- As in 2012, there were a low num- Summer Study 2 ued to work successfully with hunt- ber of stranded carcasses observed Seal Tagging 2 ers in Barrow to examine subsist- for ice seals and walrus. ence harvested ice seals and walrus, Our ongoing examinations and Kids Page 3 and hunter-concern animals. Over- beach surveys are part of the Ma- SHELFZ 4 all, bearded and ringed seals were rine Mammal Health Program to in good condition, very healthy, establish baseline information Ocean Drifters 4 and showed no signs of the seal about our important subsistence Wildlife Interns 5 sickness observed in 2011. Subsist- species. A summary of our ongoing Mystic-Point ence harvested animals were aged, health investigations and prelimi- 5 sexed, measured, and organs and nary results will be presented to the Lay Exchange blood were sampled. Ice Seal Committee, and at the Summer Kids 6 Due to late break up, beach sur- NSB Fish and Game Management Fish Mold in 6 veys for stranded marine mammals Committee meeting this winter. Nuiqsut THE TOWLINE Page 2 Fish, Caribou, Snow Geese and Lemmings FISH Todd Sformo has been sur- CARIBOU Brian Person worked with veying fish species in North Salt Lincoln Parrett of ADF&G and de- Lagoon and Elson Lagoon using a ployed 41 GPS, satellite, and conven- fyke net for the last three sum- tional collars on Teshekpuk caribou to mers. This survey will help us bet- monitor the herds’ distribution and ter understand the number of spe- health. Near Inigok in late June, caribou cies present, size and age distribu- were captured with a hand-held net gun. tion, health status of the fish, and Currently, the herd is distributed in 3 the water temperature and salinity. groups: one near Wainwright, one near For 2013, over 5,000 fish were Fish/Judy Creeks, and one near Anaktu- caught and released with 14 spe- vuk Pass. It is likely they will maintain Yosty and Ryan tag a lemming cies identified, mostly least cisco this distribution throughout the winter. Captured lemmings are in- and fourhorn sculpin. Few para- SNOW GEESE Brian and others con- jected with tags that are used sites were observed, and fish ap- tinue to monitor the Snow Goose colo- for “mark-recapture” popu- pear to be healthy, which is com- ny on the Ikpikpuk Delta. About 60% lation estimates. There were parable to previous years. of these nests failed due to brown bear 41 lemming captures; 16 predation. In late July 1600 flightless lemmings were recaptures. geese were captured and fitted with met- These low lemming num- al leg bands to determine their survival bers agree with the low lem- rate and distribution. This is the largest, ming sightings by local resi- rapidly growing colony in western North dents and the biologists. We America. hope to continue this study LEMMINGS Ryan Klimstra and the long-term to better under- USFWS continued a lemming monitor- stand fluctuations in lem- Todd and Lynette measuring fish ing study near Barrow this summer. ming numbers. Satellite Tracking of Natchiq Andy Von Duyke, along with ployed failed after a short time; Billy Adams, Ryan Klimstra, despite the short life, they did pro- Bobby Sarren, Jordan Kippi, vide good data. After fixing a soft- and Isaac Leavitt, captured and ware defect in the SDRs, poor tagged three ringed seals near weather hampered capture efforts. Barrow. Two adult female seals On September 4th Ellis Pat- were caught in July and fitted kotak, responding to a community with satellite data recorders poster requesting assistance, (SDRs). The first two tags de- brought in a female ringed seal which had become entangled in his subsistence gill net. The seal Tracks of 2013 tagged ringed seals was fitted with an SDR and re- particular importance to hunters. leased near the boat ramp at Funded by the NSB-Shell Baseline Niksiuraq. This tag transmitted Studies Program since 2011, data until October 23rd. have been collected for a total of 39 Future efforts for this study in- seals. A major effort this winter will clude working out new methods be to analyze all data, including loca- for safely capturing seals in icy tions, dive depth and water tempera- conditions. Catching seals in late ture, and generate a report on im- winter/early spring will provide portant feeding areas for ringed seals information on the presence of a in the northeastern Chukchi and the Andy and Billy tagging Natchiq resident population, which is of western Beaufort Seas. Page 3 VOL 5 NO 2 Draw a line from the Iñupiat name to the English name for these Types of SNOW! Agniqsuq Crystallized, bottom layer Did you know Aniquyyaq Dry Snow Blizzard that... Aniu Fresh Powder Snow Apun Hard, icy snow … snowflakes form by water freez- Auktuq Hard-packed Snow ing to dust particles in clouds. Irriqutit Long Snow Drift … the ice crystals in the clouds Masallak Low Blowing Snow grow and fall when they get large Natiġvik Melting Snow and heavy enough. Nutaġaq Snow Cover … snowflakes start out as 6-sided Piqsiqsuq Snow Flake shapes, or hexagonals. Pukak Snow House … after thawing and freezing, Qannik Snow/Ice Crystals in Air snowflakes change shape and meta- Qimuagruk Sticky, Snowball Snow morphose into “hoar” crystals. Siļļiq Wet Snow Blizzard … snow on lake or sea ice protects the ice from melting. Note: Iñupiat name spellings vary between regions. Reference: Apun, The Arctic Snow by Matthew Sturm … snow protects tundra plants from getting too cold in the winter. … snow provides insulation for ani- mals living under the snow, like lemmings and insects. … caribou have large, wide hooves Go outside and find a snowflake! Draw a picture of your snowflake below. to help them travel on snow. How many sides does it have? Can you Answer this Question? What is the Iñupiaq name for the snow knives that are used to make snow shelters? Email [email protected] with your answer. First person with correct answer will be acknowledged on our website! Check our website for the correct answers! Go to www.north-slope.org/departments/wildlife/dwm_newsletters.php THE TOWLINE Page 4 SHELFZ—Shelf Habitat and EcoLogy of Fish and Zooplankton Leandra de Sousa, along with NOAA, UAF, and University of Washington, funded by CIAP, collected baseline data on the habitat, abundance, distribution and species composition of fish and zooplankton in the Chukchi Sea between Barrow and Wainwright from August 17th to September 6th at 61 different stations. Near shore work included beach seining while offshore work utilized bottom and mid-water trawls for fish and for zooplankton (like krill). Salinity and temperature were collected using a CTD (conductivity, temperature, depth) sensor. The cruise went well and preliminary results were distributed to North Slope communities during the cruises. A more detailed report will follow later in 2014 after data are analyzed. Map of the study area showing sampling locations This information will help us to better under- cies and any feeding “hot spots” of high prey density. stand the available forage for marine mammals. The results will be used to help make informed deci- We hope to identify the availability of prey spe- sions regarding offshore-related activities. Surface Ocean Drifters Surface ocean drifters were deployed off of Wainwright and Barrow in 2012 to help us better understand the near shore surface cur- rents. The project, funded by the NSB/Shell Baseline Studies Program, continued this summer of 2013 with ocean drifters de- Wainwright drifter tracks as of ployed off of Point Lay and Wainwright. Point Lay drifter tracks by August 30 (above) August 30 (above) and and by October 22 (below) Billy Adams, Robert Suydam, Willard by October 22 (below) Neakok and Warren Lampe deployed 13 drogue drifters and 3 surface drifters near Point Lay on August 17th, 4 miles out and 8 miles out. Billy Adams, Harris Aguvluk and Billy Sielak deployed 26 drogue drifters and 3 surface drifters 8 miles out of Wainwright on August 23rd.