Hagfish

choi

Christopher Mele, Chain-Reaction Accident with Minor Injuries, Except for All Those Slime Eels; A roadway in Oregon smeared with more than 7,000 pounds of fishy yecch. New York Times, July 15, 2016.
https://www.nytimes.com/2017/07/14/us/slime-eels-oregon.html

Note:
(a) The interjection yech (yecch is a variant) pronounces, means and uses in the same way as yuck.

(b) "A truck hauling 7,500 pounds of [live] hagfish, also known as slime eels, was traveling on Highway 101 around noon, transporting the fish to be exported to South Korea, where some diners consider them a delicacy. * * * Hagfish have been documented escaping from sharks by choking them with “enormous amounts” of slime * * * Eyeless and gray-pink"

hagfish
https://en.wikipedia.org/wiki/Hagfish
(section 1.4 Eye; section 5.1 As Human Food: "inshore hagfish [said to be found on the sea floor around Taiwan and China,Taiwanese did not know of or eat it] found in the Northwest Pacific, is valued as food in Korea")
(c) Fudge DS and Schorno S, The Hagfish Gland Thread Cell: A Fiber-Producing Cell Involved in Predator Defense. Cells (not Cell), 5: 25 (2016).
* abstract: https://www.ncbi.nlm.nih.gov/pubmed/27258313
* full text: http://www.mdpi.com/2073-4409/5/2/25/htm
(d) If you goes search YouTube with "hagfish," you will see the secretion is not slime, but a beautiful piece of transparent membrances.