isthmus (English) In ichthyology, the fleshy throat region of a fish which extends forward from the ventral part of the chest and narrows anteriorly, and externally separating the two gill …

This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. [1] Belly. Pertaining to the belly. A series of bones at the base of the pectoral …

I show that in transisthmian fish lineages, morphometric distinctions are detectable across the Isthmus, and that rates and patterns of shape change have also shifted, with variable …

Make a cut from the ventral point of the right gill cleft forward through the isthmus and sever the left and right mandibles. Pull the opercle, suspensorium, cheek, and right jaws upward and …

Jun 26, 2024 · A fish isthmus is a narrow strip of land that connects two larger bodies of water, creating a natural division between different aquatic ecosystems. This geographical feature can...

The length of a fish as measured from the tip of the snout to the fork of the caudal fin. Often used for angling species. Free rear tips (of fins)

Narrow strip of land connecting two larger areas, or a narrow strip of tissue connecting two larger body parts. In ichthyology often used in reference to the fleshy throat region of a fish which …

Feb 19, 2024 · The isthmus supports fish gills by providing structural integrity, allowing for efficient gas exchange. Its V-shaped design increases the surface area for oxygen absorption from …

Nov 5, 2024 · A particular species of fish was split by the formation of the Isthmus of Panama a long time ago. The fish developed changes to adapt to the new environment and became two …

drawing shows typical species in Cyprinidae. Etymology: isthmus: The specific name is from the Latin 'isthmus' (narrow passage or neck of land), in reference to the narrow black bars on the …