Otolith elemental composition reveals separate spawning areas of anchoveta, Engraulis ringens, off central Chile and northern Patagonia
Composición elemental de otolitos revela áreas de desove separadas de anchoveta, Engraulis ringens, frente a Chile central y Patagonia norte
| dc.creator | Cuevas, María José | |
| dc.creator | Górski, Konrad | |
| dc.creator | Castro, Leonardo R. | |
| dc.creator | Vivancos, Aurélien | |
| dc.creator | Reid, Malcolm | |
| dc.date | 2020-06-28T01:27:38Z | |
| dc.date | 2020-06-28T01:27:38Z | |
| dc.date | 2019-12 | |
| dc.date.accessioned | 2022-10-18T12:07:39Z | |
| dc.date.available | 2022-10-18T12:07:39Z | |
| dc.identifier | Scientia Marina 83(4) December 2019, 317-326, Barcelona (Spain) | |
| dc.identifier | 0214-8358 | |
| dc.identifier | http://repositoriodigital.ucsc.cl/handle/25022009/2048 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4441682 | |
| dc.description | The anchoveta (Engraulis ringens) is widely distributed throughout the Humboldt Current (4°30′-44°S). In recent years, its eggs and larvae have also been found inside fjords and channels of northern Patagonia, close to the southern limit of the central-south Chilean fishery zone. Currently, it is unclear whether these southern individuals constitute an independent subpopulation. This study analysed the elemental composition of otoliths from 102 specimens from central Chile and northern Patagonia using laser ablation inductively coupled plasma mass spectrometry. The results indicated that the elemental composition of the otolith cores (Mg, Pb, Zn, Ba) differed significantly between sites, revealing the existence of two discrete spawning zones, one in central Chile and one in northern Patagonia. However, the low significant differences of elemental signatures of otolith edges suggest that either individuals from both areas move between spawning areas and mix at certain periods of the year, or they represent pocket units that form part of a larger stock that moves along the coast. | |
| dc.language | en | |
| dc.publisher | Scientia Marina | |
| dc.source | https://doi.org/10.3989/scimar.04918.28A | |
| dc.subject | LA-ICP-MS | |
| dc.subject | Anchovy | |
| dc.subject | Humboldt Current | |
| dc.subject | Small pelagic fishes | |
| dc.subject | Patagonia | |
| dc.title | Otolith elemental composition reveals separate spawning areas of anchoveta, Engraulis ringens, off central Chile and northern Patagonia | |
| dc.title | Composición elemental de otolitos revela áreas de desove separadas de anchoveta, Engraulis ringens, frente a Chile central y Patagonia norte | |
| dc.type | Artículos de revistas |