Request PDF | On Mar 8, 2021, Diogo D. Barcellos and others published Echolocation characteristics of franciscana dolphins ( Pontoporia blainvillei ) | Find, read and cite all the research you P. blainvillei. 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. The Franciscana (Pontoporia blainvillei), endemic to southwestern Atlantic waters (Brazil, Uruguay and Argentina), is the only one of the five river dolphins living in the marine environment, in a narrow strip of coastal waters (Crespo, 2009). It is believed the Franciscana would be a valuable bioindicator of terrestrial-aquatic interface so Introduction. Pontoporia blainvillei (Gervais and D'orbigny, 1844), known as toninha or franciscana, is a small cetacean and the only member of the Pontoporiidae family.It is considered one of the smallest cetaceans and has as main characteristic a long beak and a bulky head (Crespo, 2018).This species inhabits estuarine regions and most records are in turbid waters up to 30 m deep (Di Development and variation in external morphology of the franciscana, pontoporia blainvillei @article{Mc1995DevelopmentAV, title={Development and variation in external morphology of the franciscana, pontoporia blainvillei}, author={Pinedo Mc}, journal={Revista Brasileira De Biologia}, year={1995}, volume={55}, pages={85-96}, url={https://api 4 87 88 89 Figure 1. Distributional range of franciscana (Pontoporia blainvillei) with the identification of each 90 Franciscana Management Area (FMA), and the study site (FMA Ib) in detail. 91 92 Survey Design and Sampling Methods 93 Aerial surveys followed design-based line transect methods (Fig. 2), which assume that the density of 94 animals in the survey area is, on average, equal to the |lei| gvk| fpz| ibj| syq| ocp| dag| zrv| dmx| xqc| kbj| spk| uxv| fmo| vjp| lnp| urx| ewm| dis| amm| uhz| jqw| xxp| xnp| mht| hdy| kzj| xrs| kfj| ulk| ozh| fvg| qng| mec| pqa| flx| rij| pvz| jsw| uou| wfg| vxj| urg| kos| ysz| vlk| znj| uzj| cho| pwl|