Kernel deconvolution density estimation

Basulto-Elias, Guillermo

doi:10.31274/etd-180810-5501

Cited by 2 publications

(6 citation statements)

References 27 publications

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“…During the 1980s, returns continued to be observed in Curaco de Vélez Munita 1988). Further south, stocking of smolts in Río Prat in the Magellan region (51°S) also produced returnees (Sakai 1989;Basulto 2003). The number of returning adults never exceeded 3% of the released smolts (Table 1).…”

Section: Chinook Salmon Establishmentmentioning

confidence: 92%

“…Chile, which has no native salmonids but has environmental characteristics in common with Norway and British Columbia (productive oceans, cold and mountainous rivers), began ocean ranching in the late 1970s and 1980s using ChS as well as other species. Despite promising results, by 1990 the industry switched entirely from ocean ranching to net pen farming, largely due to the absence of physical and legal means to control the capture of returning adults by local fishermen (Basulto 2003). A similar sequence of events is also true in North America.…”

Section: Introductionmentioning

confidence: 96%

“…They also state that the gametes of these returns would be used for future stockings in the Magellan region. Basulto (2003) assumes that Donaldson and Joyner (1983) refer to the stockings conducted by Fundación Chile in the Magellan region, first in Río Santa María, and then in Río Prat. Data from a company created by Fundación Chile (in Sakai 1989) indeed show that ChS imported from the USA were stocked in 1983 in Río Prat and after 2-4 years, [ 2% of the fish returned and provided gametes for further stockings in the same river in 1987.…”

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

“…Embryos were now flown from the USA to Chile and arrived in excellent condition (Basulto 2003). Several hundred thousand fingerlings were introduced in the Chirri River (1969)(1970).…”

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

“…The very first of a series of attempts was in 1,886 involving 39 juvenile ChS shipped to Santiago of Chile from Paris (where the species was previously introduced from the USA). These fish were kept in captivity, however, and never stocked in the wild (Basulto 2003).…”

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

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Chinook salmon invade southern South America

2007

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We document the invasion of Chinook salmon (Oncorhynchus tshawytscha) to southern South America providing historical, current and future perspectives. We conducted field sampling, angler surveys, and analyzed all written records, and found evidence of reproductive populations in more than ten Andean (and many more coastal) watersheds draining mainly to the Pacific Ocean in Chile (39°-53°S), but also to the Atlantic Ocean in Argentina (50°S). Invasion begun *25 years ago apparently from a few point sources of introduction by ocean ranching operations using spring-run Chinook salmon originated from tributaries of the lower Columbia River, USA. The rapid spread suggests that Chinook salmon were pre-adapted to their novel marine and freshwater environments because of similarities to equivalent North Pacific habitats, and invasion may have been facilitated by low ecological resistance. Preliminary data suggest that populations express a latitudinal gradient in juvenile migration life histories equivalent to that in their native range. Parallels to the only other establishment of anadromous Chinook salmon outside their native range, New Zealand, suggests a predictable invasion rate. In South America, the invasion is ongoing in southern areas, yet we deem unlikely colonization of rivers north of the range reached thus far. This is the first anadromous salmon species to have invaded such a large range in South America, and it raises many evolutionary, ecological, environmental and socioeconomic issues, with several discussed here.

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Section: Chinook Salmon Establishmentmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 96%

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

“…Embryos were now flown from the USA to Chile and arrived in excellent condition (Basulto 2003). Several hundred thousand fingerlings were introduced in the Chirri River (1969)(1970).…”

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

Section: Chinook Salmon Introductionsmentioning

confidence: 99%

See 3 more Smart Citations