More sad news coming officials at Mote, who confirmed Tuesday they have recovered a 13th dolphin in Sarasota County.

Mote Marine says of the 13 dolphins recovered so far, seven are males, six are females. The 13th was a calf and the 12th was an unborn fetus. All of them were recovered between August 7th-21st.

ABC-7 reports that necropsy results done at Mote showed the animals were affected by humans and red tide.

One dolphin, named Speck, had been part of Mote’s ongoing study of resident bottlenose dolphins.