Variations in the diet composition and feeding intensity of mackerel icefish Champsocephalus gunnari at South Georgia (Antarctic)

first_imgThe diet composition and feeding intensity of mackerel icefish Champsocephalus gunnari around Shag Rocks and the mainland of South Georgia was analyzed from ca 8700 stomachs collected in January/February 1985, January/February 1991 and January 1992. Main prey items were krill Euphausia superba, the amphipod hyperiid Themisto gaudichaudii, mysids (primarily Antarctomysis maxima), and in 1985 also Thysanoessa species. The proportion of krill and T gaudichaudii in the diet varied considerably among the 3 years, whereas the proportion of mysids in the diet remained fairly constant, Krill appears to be the preferred food. In years of krill shortage, such as in 1991, krill was replaced by T gaudichaudii. The occurrence of krill in the diet in 1991 was among the lowest within a 28 yr period of investigation. Variation in food composition among sampling sites was high. This high variation appears to be primarily associated with differences in prey availability, but much less with prey size selectivity. Feeding intensity varied considerably among seasons. It was highest in 1992. The proportion of empty stomachs was uncommonly high and stomach content weight was uncommonly low in January 1991, a period when energy-rich food was needed for the final maturation of gonads. At the same time, an unusually high proportion of sexually mature fish showed no signs of the gonad development necessary for spawning in that season. It was hypothesized that as in some other non-Antarctic fish species the shortage of suitable food may have forced the fish to sacrifice gonad maturation in order to maintain body size.last_img read more

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Dozen declared for Derby

first_imgJim Bolger’s Dawn Approach heads a field of 12 for Saturday’s Investec Derby at Epsom. Ruler Of The World, impressive at Chester, will be partnered by Ryan Moore, with Richard Hughes on Mars. Seamie Heffernan receives the leg-up aboard stablemate Festive Cheer, and Colm O’Donoghue is on Flying The Flag. Elaine Burke’s Libertarian is the leading British-trained contender after his win in the Dante at York. German raider Chopin was supplemented on Monday after being purchased by Sheikh Fahad Al Thani’s Qatar Racing Ltd. Andre Fabre, successful two years ago with Pour Moi, runs the unbeaten Ocovango, with Galileo Rock, Mirsaale and Ocean Applause completing the field. Conditions at Epsom have eased considerably throughout the week, with clerk of the course Andrew Cooper now calling the ground good to soft, soft in places. “We’ve had nearly an inch of rain this week. I walked it yesterday evening and called it good to soft, good in places but I’ve walked it this morning and you’d have to call it good to soft, soft in places,” Cooper told At The Races. “The year High Chaparral won (2002) was undoubtedly the softest Derby I’ve had and this year will be similar. I can’t see the Derby now being run on anything appreciably better than good to soft.” The impressive Qipco 2000 Guineas winner remains unbeaten in his seven-race career and will attempt to follow in the hoofprints of his sire New Approach, who won the race in 2008. In an attempt to foil Dawn Approach and their big rivals Godolphin, Aidan O’Brien and Coolmore field five – although Irish Guineas winner Magician has been taken out, as expected. Chief Ballydoyle hope appears to be Battle Of Marengo, winner of the Derrinstown Derby Trial and ridden by Joseph O’Brien. center_img Press Associationlast_img read more

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What channel is NASCAR on today? TV schedule, start time for Sunday’s Michigan race

first_imgThe TV channel for a NASCAR race is elusive enough in a normal season when Fox and FS1 trade broadcasts of Cup Series events through the first half of the schedule before NBC and NBCSN take over for the second half. The schedule shake-up associated with the coronavirus pandemic make the “what channel is today’s NASCAR race on” question even more understandable.For the second time this season, NASCAR is working through a Saturday-Sunday doubleheader as part of those schedule changes, this time at Michigan International Speedway. As was the case for Saturday’s race, the TV channel for Sunday’s NASCAR race is NBCSN. The Consumers Energy 400 marks NBC/NBCSN’s sixth broadcast of the season, as Fox/FS1’s slate ended with the July 15 All-Star Race. The previously postponed races at Dover and Michigan are now part of Saturday-Sunday doubleheaders at those respective tracks in August.Because New York requires people to quarantine for 14 days after traveling from one of the states impacted heavily by COVID-19 (including North Carolina), the Watkins Glen race on Aug. 16 was moved to the Daytona road course. According to The Athletic, NASCAR tried to get a quarantine waiver for its Watkins Glen races but was denied by Gov. Andrew Cuomo’s office.The Aug. 16 race will be the NASCAR Cup Series’ first on the road course at Daytona. MORE: Watch today’s NASCAR race live with fuboTV (7-day free trial)Sunday’s race at Michigan is the 18th race in NASCAR’s return on an altered, short-term schedule, and the 22nd Cup Series races overall as NASCAR attempts to keep a 36-race slate intact for 2020. The first Michigan race originally was scheduled to run in early June but was rescheduled amid the pandemic and paired with the August Michigan race for a doubleheader.The start time for Sunday’s NASCAR Cup Series race at Michigan is 4:30 p.m. ET, 30 minutes later than the start time of Saturday’s race.Below is how to watch Sunday’s NASCAR Cup Series race at Michigan, including the TV channel and live stream options.What channel is NASCAR on today?Race: Consumers Energy 400 at Michigan International SpeedwayDate: Sunday, Aug. 9TV channel: NBCSNLive stream: NBCSports.com | fuboTV (7-day free trial)Radio: MRNNBCSN is the TV channel for Sunday’s NASCAR race at Michigan as originally scheduled even though it’s now the second leg of a doubleheader. Of the 20 NASCAR Cup Series races NBC will broadcast in 2020, 12 were scheduled to be shown on NBCSN with the other eight on NBC’s flagship cable network.As for Sunday’s NASCAR Cup Series race on NBCSN, the network has a channel finder feature for viewers to find the TV channel options in their areas.As is the case for all the Cup Series races on NBC and NBCSN this season, Rick Allen will call the race with the assistance of analysts Dale Earnhardt Jr., Jeff Burton and Steve Letarte.What time does the NASCAR race start today?Date: Sunday, Aug. 9Start time: 4:30 p.m. ETThe green flag for Sunday’s NASCAR Cup Series race at Michigan will wave shortly after 4:30 p.m. ET, assuming there are no rain delays as there have been so often since NASCAR returned to live racing in May.Though NASCAR will have plenty of time to get the race in with the sun not setting in Brooklyn, Mi., until almost 9 p.m. ET, the relatively late start time for an afternoon race is notable because Michigan International Speedway does not have lights.Sunday’s race is scheduled for the same distance as Saturday’s race — 156 laps around the two-mile oval for a total of 312 miles.NASCAR live stream for Michigan raceAnybody who has a cable or satellite subscription can stream Sunday’s NASCAR race at Michigan live via NBCSports.com or the NBC Sports app. This should be the preferred route for a viewer who has such a subscription but isn’t able to get in front of his or her TV.For those who don’t have a cable or satellite subscription, there are five OTT TV streaming options that carry NBC and NBCSN — Sling, Hulu, YouTubeTV, fuboTV and AT&T Now. Of the five, Hulu, YouTubeTV and fuboTV offer free trial options.Below are links to each.SlingHulu (free trial)YouTubeTV (free trial)fuboTV (free trial)AT&T NowNASCAR schedule 2020NASCAR on July 8 released its latest revised Cup Series schedule through August of 2020. It remains committed to running 36 races, four of which were completed before the COVID-19 pandemic shut down the sports world. NASCAR hopes to keep its 10 playoff races in the fall intact and at their original tracks.Below is the schedule revision for the Cup Series regular season, starting with the races at Darlington the Cup Series ran in its return in May.DateTrackTV channelStart timeSun., May 17DarlingtonFOX3:30 p.m. ETWed., May 20DarlingtonFS17:30 p.m. ETSun., May 24CharlotteFOX6 p.m. ETWed., May 27CharlotteFS18 p.m. ETSun, May 31BristolFS13:30 p.m. ETSun, June 7AtlantaFOX3 p.m. ETWed, June 10MartinsvilleFS17 p.m. ETSun, June 14Homestead-MiamiFOX3:30 p.m. ETSun, June 21TalladegaFOX3 p.m. ETSat., June 27PoconoFOX3:30 p.m. ETSun., June 28PoconoFS14 p.m. ETSun., July 5IndianapolisNBC4 p.m. ETSun., July 12KentuckyFS12:30 p.m. ETWed., July 15Bristol (All-Star Race)FS18:30 p.m. ETSun., July 19TexasNBCSN3 p.m. ETThurs., July 23KansasNBCSN7:30 p.m. ETSun., Aug. 2New HampshireNBCSN3 p.m. ETSat., Aug. 8MichiganNBCSN4 p.m. ETSun., Aug. 9MichiganNBCSN4:30 p.m. ETSun., Aug. 16Daytona (road course)NBC3 p.m. ETSat., Aug. 22DoverNBCSN4 p.m. ETSun. Aug. 23DoverNBCSN4 p.m. ETSat., Aug. 29DaytonaNBC7:30 p.m. ETThe Darlington race on May 17 ran instead of the the Chicagoland race that was originally scheduled for June 21. The Darlington race on May 20 ran instead of the postponed Richmond race that was originally scheduled for April 19. The Charlotte race on May 27 ran instead of the Sonoma race that was originally scheduled for June 14.The Pocono doubleheader remained as previously scheduled for the final weekend of June, with the Cup Series racing on back-to-back days. Those races were presented on Fox (and FS1) rather than on NBC. Fox’s closed its coverage this season with the All-Star Race at Bristol on July 15.last_img read more

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