What does an ice fish look like?

These fish all have heads that look a little like a crocodile — so they are sometimes called crocodile icefishes. They have grayish, black or brown bodies, wide pectoral fins, and two dorsal fins that are supported by long, flexible spines. They can grow to a maximum length of about 30 inches.Click to see full answer. Thereof, how do ice fish survive without hemoglobin?Oxygen is dissolved in the plasma and transported throughout the body without the hemoglobin protein. The fish can live without hemoglobin via low metabolic rates and the high solubility of oxygen in water at the low temperatures of their environment (the solubility of a gas tends to increase as temperature decreases).Secondly, are ice fish endangered? Not extinct Just so, what does the ice fish have instead of blood? Later, Johan Ruud and other researchers confirmed that the Antarctic icefishes, as they are now known, are the only vertebrates that lack both red blood cells and hemoglobin—the iron-rich protein such cells use to bind and ferry oxygen through the circulatory system from heart to lungs to tissues and back again.How do ice fish obtain their oxygen?Their blood is transparent.” Detrich said they likely evolved this trait because they live in the cold, stormy waters around Antarctica; the very cold Southern Ocean dissolves much more oxygen than tropical waters. The icefish obtain oxygen in physical solution through their gills and directly through their skin.