2011 after the Iranian parliament voted not to provide funds to channel water from the Aras River to raise the lake level. Apparently, parliament proposed instead to relocate people living around Urmia Lake. More than 30 activists were detained on 24 August 2011 during an iftar meal. In the absence of a right to protest publicly in Iran, protesters have incorporated their messages into chants at football matches. On 25 August, several soccer fans were detained before and after the Tabriz derby match between Tractor Sazi F.C. and Shahrdari Tabriz F.C. for shouting slogans in favor of protecting the lake, including "Urmia Lake is dying, the Majlis [parliament] orders its execution". Further demonstrations took place in the streets of Tabriz and Urmia on 27 August and 3 September 2011. Amateur video from these events showed riot police on motorcycles attacking apparently peaceful protesters. According to the governor of West Azerbaijan, at least 60 supporters of the lake were arrested in Urmia, and dozens in Tabriz, because they had not applied for a permit to organize a demonstration. The effect of climate change on the lake, has been extensively covered by an Iranian photojournalist Solmaz Daryani. Islands Lake Urmia had approximately 102 islands. Shahi Island was historically the lake's largest. However, it became a peninsula connected to the eastern shore when the lake level dropped. Shahi Island is the burial place of both Hulagu Khan (one of Genghis Khan's grandsons) and of Hulagu's son Abaqa. Both khans were buried in a castle above cliffs along the shore of the island. In 1967, the Iranian Department of Environment sent a team of scientists to study the ecology of Shahi Island. Various results of the study, which included the breeding habits of brine shrimp, were published by Javad Hashemi in the scientific journal, Iranian Scientific Sokhan. A herd of Iranian antelope and gazelle were introduced into the islands, some of which survive to the present day. The Persian leopards that were also introduced to check the number of these antelopes survived for years, going extinct sometime in the early 1980s. Basin rivers Lake Urmia is fed by 13 permanent rivers and many small springs, as well as rainfall directly into the lake. Nearly half the inflow comes from the Zarrineh River and Simineh River. There is no outflow from the lake so water is only lost through evaporation. Aji Chay Alamlou River Barandouz