Rev. biol. mar. oceanogr. 53(S1): 107-112
|
|
DOI:http://dx.doi.org/10.22370/rbmo.2018.53.0.1262 |
|
Relación longitud-peso, coloración y ubicación en el ambiente de juveniles de Pinguipes chilensis en Bahía La Herradura, Coquimbo, Chile |
|
Héctor Flores1 y María Ignacia Araus2 |
|
|
1Departamento de Acuicultura, Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
2Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile |
|
|
|
|
|
In the Chilean coast, sharks and rays are one of the least studied fish groups, therefore quantitative data about their
parasites are scarce or almost non existing. Copepod parasites were collected from different sites along corporal body of
Prionace glauca (n= 12) and of Isurus oxyrinchus (n= 1) captured onboard cruise OCEARCH during March and April 2014. Three species belonging to the Pandaridae family were identified: Echthrogaleus coleoptratus, Dinemoura producta and Nessipus orientalis. The latter species is here recorded for the first time in Chilean waters. These copepods did not show infection site preferences along host body. Considering the wide range of hosts described for these parasite species, it is concluded they are generalist parasites of wide geographic distribution
Pinguipes chilensis (Chilean sandperch) is an endemic species of the Southeast Pacific Ocean. Studies have generally included specimens of a total length (Lt) of more than 21 cm, there being no formal antecedents of specimens of a smaller Lt, weakness that motivates this study. It was determined for the Lt-Pt relation (Pt= 0.000005Lt3,1101, R2= 0.974) and Fulton’s average condition factor (0.81). Three ontogenetic color morphs are characterized, which are arranged in different environments and inhabit heterogeneous backgrounds, with sandy areas, others with abundant rocks and cracked rocks, which allow fish to take refuge. |
|
Key words: Fish, juvenile, environment, Pinguipedidae |
|
|
|
*