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opercular

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  • Frogfish in Maui 2008 Frogfish in Maui 2008. They are generally small fish, less than 10 centimetres (3.9 in) in length, with large globose heads. They can be distinguished from other anglerfish by the three extended dorsal fin spines on their heads. The first dorsal spine is modified as a fishing lure to attract prey. The lure consists of the illicium (the spine) and the esca (the bait), and may resemble a worm, crustacean, or small fish. Frogfishes do not swim in the conventional way; instead, they "walk" on their pectoral fins or use 'jet propulsion' (forcefully expelling water from the small opercular opening generally behind and below the pectoral fins). They are mostly bottom-dwelling fish, typically living amongst coral, at up to 100 metres (330 ft) depth, where they lie in wait for prey. They are able to change their colour to match the background with high precision, and their camouflage is further aided by numerous warts and filaments on their skin, giving them an appearance similar to rough coral.
  • How to Fillet Fish : Remove Gills from Fish Learn how to properly gut a fish by removing guts and gills in this free online fish cleaning video. Expert: Bruce Marnie Bio: Bruce Marnie was born and raised in Hawaii on the island of Oahu. He is an active and experienced outdoorsman. Filmmaker: James Hartman
  • journal.pcbi.1000381.s008.mp4 Spring-embedded visualization of resting-state functional connectivity data from Fair, Cohen, Power, Dosenbach, Church, Miezin, Schlaggar & Petersen, 2009 PLoS Computational Biology. Proximity of nodes represents their correlations at approximately .1-1Hz during rest. Time represents change from age 7 to age 31. Nodes are color coded according to adult profile (core node colors) and also by anatomical location (node outlines). Black - cingulo-opercular network; Yellow - fronto-parietal network; Red - default network; Blue - cerebellar; Light blue - frontal cortex; Grey - parietal cortex; Green - temporal cortex, Pink - cerebellum, Light pink - thalamus.
  • How to Fillet Fish : Tips for Determining Freshness of a Fish Learn how to determine the freshness of a whole fish before purchasing it in this free online video clip. Expert: Bruce Marnie Bio: Bruce Marnie was born and raised in Hawaii on the island of Oahu. He is an active and experienced outdoorsman. Filmmaker: James Hartman
  • Icthyology Pt.2 Icthyology may be a key to climate change. What we learn about fish is what we learn about ourselves.In this segment a skull prep is shown of the Opercular jaw series, an Otolith is investigated for the age of a fish. Several rare fish are explored from the Cal Academy: Lantern fish, Piranha, Aligator Gar, and the Angler fish. The Tideppool is explored and several Tidepool Sculpins are observed and later released back in to the wild.