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Attachment and growth of antarctic soil cyanobacteria and algae on natural and artificial substrata

first_imgThe attachment to artificial substrata (carborundum paper) of cyanobacteria and algae isolated from Antarctic fellfield soils was investigated using a simulated flow apparatus. Generally, the rugosity of the substratum was less important than the morphology and extent of mucilage production of the microflora in determining attachment success. However, the smoothest grades of substratum did increase the retention of the fine filaments of the cyanobacterium Pseudanabaena and decrease the retention of the large filaments of the chlorophyte Zygnema. Filaments of the motile cyanobacterium Phormidium and cells of the motile diatom Pinnularia showed good retention on all grades of paper, with that of Phormidium being the highest of all taxa at 90–100%. The coccoid chlorophyte Planktosphaerella was poorly retained on all grades of substratum. Growth rates of the same organisms on fellfield soils were little affected by soil rugosity, although the largest soil particles (1–2 mm) did cause a decrease in the growth rate of Phormidium and increase in that of Planktosphaerella. These results indicate the importance of the cyanobacterial-algal flora, and especially the motile component, in the stabilization of fellfield soils.last_img read more

Indonesia reiterates concern about alleged mistreatment of crewmen on Chinese vessels

first_imgMeanwhile, the South China Morning Post (SCMP) cited crewmen of the Long Xing 629 claiming they were sometimes forced to work for up to two days without rest, had been subjected to violence and discrimination and faced hunger and dehydration.The Chinese foreign ministry said it was investigating the matter but added that some of the allegations were “inconsistent” with information it had gathered, though it did not elaborate, SCMP reports.The Indonesian crewmen who have returned to Indonesia are reportedly still waiting for thousands of dollars in unpaid wages.The Indonesian government has reported the case to the United Nations Human Rights Council and officially asked the Council to address human rights violations in the fishing industry.The National Police’s Criminal Investigation Department (Bareskrim) has named three suspects from manning agencies in Indonesia and alleged a modus operandi of “promising salary and work placement but with unclear working hours”.Forty-six Indonesian crew members were working for the ship operator, Dalian Ocean Fishing Co., which had landed at Busan, South Korea, aboard the Long Xin 605 and another vessel, Tian Yu 8.On Tuesday, the Foreign Ministry facilitated the return of two more Indonesian crew members to Jakarta, Retno said during Thursday’s conference.“This means that all 46 [working for] the company have been brought back to Indonesia,” she said.Retno added that the legal process in Indonesia was moving forward, with the National Police continuing its investigation alongside the Attorney General’s Office. Indonesia has again expressed its concern regarding cases of alleged human rights abuse affecting its citizens onboard Chinese-flagged fishing vessels, calling for a serious investigation.“Indonesia looks forward to receiving the results of a fair and transparent investigation from the Chinese authorities,” Foreign Minister Retno Marsudi said during a press conference on Thursday.The minister said that, based on conversations with fishermen from different Chinese vessels, she had been told “exactly the same stories about mistreatment on board”. Retno said his ministry had summoned Chinese Ambassador to Indonesia Xiao Qian to convey the concerns while maintaining communication between Indonesian and Chinese officials in Beijing.The allegations of exploitation emerged recently with the report of four Indonesians registered to Chinese fishing ship Long Xing 629 who died between December 2019 and April this year after allegedly enduring poor working conditions.A video published by South Korea’s Munhwa Broadcasting Corporation (MBC) last month showed a group of men throwing an orange body bag, believed to contain the body of an Indonesian crew member, off a fishing vessel.Two unidentified Indonesian sailors told MBC that crew members allegedly were only allowed to take short breaks every six hours, had almost no time to sleep and were made to drink filtered seawater.center_img Topics :last_img read more

Syracuse commit McCullough to attend IMG Academy after dismissal from Brewster

first_imgSyracuse commit Chris McCullough will attend IMG Academy in Bradenton, Fla.Nearly a month after his expulsion from Brewster (N.H.) Academy on Nov. 11, the five-star forward will attend IMG, which places a strong emphasis on developing young athletes. McCullough, the third-ranked power forward in the Class of 2014 according to Scout, signed his National Letter of Intent to play for SU on Nov. 14.The reasons for his dismissal from Brewster have not been disclosed but around 9 a.m. on Monday morning Brewster head coach Jason Smith tweeted this:Best of luck to Brewster graduate @_CM5 at #IMG during his postgraduate year!— Jason Smith (@BrewsterHoops) December 9, 2013AdvertisementThis is placeholder textMcCullough thanked Smith in a corresponding tweet, confirming his move to the prep school.Smith said in an email that McCullough, who graduated from Brewster last spring and was there for a post-graduate year this fall, most likely came to the decision with his family and the SU coaching staff.Smith is also confident that McCullough will work hard and ready himself for college on and off the court.“I’m sure he will be working hard both academically, as well as athletically,” Smith said in the email, “so when he arrives on campus this summer at SU he will be ready to contribute immediately.”The 6-foot-10 210-pounder from the Bronx, N.Y., has found a new home, and The Post-Standard reported that McCullough practiced with IMG yesterday and is enrolling in the school on Monday.McCullough posted an Instagram video himself dunking at IMG Monday night. Facebook Twitter Google+ Published on December 9, 2013 at 11:27 am Contact Jesse: [email protected] | @dougherty_jessecenter_img Commentslast_img read more