Search results
Results from the WOW.Com Content Network
Young fisherman with dolphinfish from Santorini, Greece, c. 1600 BCE (Minoan civilization) The mahi-mahi ( / ˌ m ɑː h i ˈ m ɑː h i / MAH -hee- MAH -hee ) [ 3 ] or common dolphinfish [ 2 ] ( Coryphaena hippurus ) is a surface-dwelling ray-finned fish found in off-shore temperate , tropical , and subtropical waters worldwide.
River dolphins are thought to have relictual distributions, that is, their ancestors originally occupied marine habitats, but were then displaced from these habitats by modern dolphin lineages. [ 12 ] [ 13 ] Many of the morphological similarities and adaptations to freshwater habitats arose due to convergent evolution ; thus, a grouping of all ...
The tucuxi (Sotalia fluviatilis), alternatively known in Peru bufeo gris or bufeo negro, is a species of freshwater dolphin found in the rivers of the Amazon basin. The word tucuxi is derived from the Tupi language word tuchuchi-ana , [ citation needed ] and has now been adopted as the species' common name.
Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity .
The pompano dolphinfish (Coryphaena equiselis) is a species of surface-dwelling ray-finned fish found in tropical and subtropical waters. They are one of only two members of the family Coryphaenidae, the other being the mahi-mahi or common dolphinfish. [2] Pompano dolphinfish have a lifespan of three to four years.
Standing water is a type of freshwater habitat that mainly consists of lakes and ponds. This habitat has limited species diversity because they are isolated from one another and other water systems, unlike running water. [7] Standing water experiences the process of stratification, which is when water is layered due to the oxygen content. [6]
The freshwater ecoregion system is similar to that for terrestrial ecoregions. The Earth's land surface is divided into eight terrestrial biogeographic realms or ecozones, which contain hundreds of smaller ecoregions. Ecoregions are classified into biomes or major habitat types, which have similar climates and vegetation types. The freshwater ...
The La Plata dolphin, franciscana or toninha (Pontoporia blainvillei) is a species of river dolphin found in coastal Atlantic waters of southeastern South America. [4] It is a member of the Inioidea group and the only one that lives in the ocean and saltwater estuaries, rather than inhabiting exclusively freshwater systems.