Growth-related morphology of “Kunimasu” (Oncorhynchus kawamurae: family Salmonidae) from Lake Saiko, Yamanashi Prefecture, Japan

Nakabo, Tetsuji; Tohkairin, Akira; Muto, Nozomu; Watanabe, Y.; Miura, Yasuaki; Miura, Hisashi; Aoyagi, Toshihiro; Kaji, Nana; Nakayama, Kouji; Kai, Yoshiaki

doi:10.1007/s10228-013-0382-7

Cited by 6 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, the morphology of North American and Japanese black kokanee tended to be quite similar to one another. The standard length of Japanese mature black kokanee males and females ranged from 178.0 to 268.7 mm and 183.2 to 235.6 mm, respectively (Nakabo et al 2014). These lengths are more comparable to Anderson Lake (about 245 to 265 mm) than to Seton Lake black kokanee (about 140 to 156 mm).…”

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 89%

“…These lengths are more comparable to Anderson Lake (about 245 to 265 mm) than to Seton Lake black kokanee (about 140 to 156 mm). Japanese black kokanee gill raker counts ranged from 36 to 45 (mean 39; Nakabo et al 2014) compared with 34 to 42 gill rakers for Anderson and Seton lakes black kokanee. At maturity, colouration was described in both sexes as olive green to black when alive and becoming darker when dead (Nakabo et al 2011(Nakabo et al , 2014.…”

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 94%

“…Japanese black kokanee gill raker counts ranged from 36 to 45 (mean 39; Nakabo et al 2014) compared with 34 to 42 gill rakers for Anderson and Seton lakes black kokanee. At maturity, colouration was described in both sexes as olive green to black when alive and becoming darker when dead (Nakabo et al 2011(Nakabo et al , 2014. Despite, therefore, our evidence of their independent origins and great physical distance Pagination not final (cite DOI) / Pagination provisoire (citer le DOI) from one another, the physical similarities between two groups of black kokanee imply that they share similar ecological attributes perhaps related to similarity in spawning and feeding habitats and behaviour.…”

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 94%

“…By contrast, in addition to being black at maturity, Japanese black kokanee spawn at mean depths of 30-40 m in lakes from March to April and also appear to float to the surface upon senescence (Akitaken Suisanshikenjo 1907, cited in Nakabo et al 2011. The black kokanee in Japan are so distinctive that they are recognized as a separate species, Oncorhynchus kawamurae, based on morphological and genetic differences from sympatric regular kokanee MacGregor 1925, cited in Jordan andHubbs 1925;Nakabo et al 2011Nakabo et al , 2014Muto et al 2013). Hybridization between the two types of kokanee in Lake Saiko has been found to occur only rarely (Muto et al 2013).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The origin and genetic divergence of “black” kokanee, a novel reproductive ecotype ofOncorhynchus nerka

Moreira

Taylor

2015

Can. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

Kokanee and sockeye salmon are the freshwater-resident and anadromous forms, respectively, of Oncorhynchus nerka. Unique populations of “black” kokanee are found in Lake Saiko, Japan, and in Anderson and Seton lakes in the southwestern interior of British Columbia. They are distinct from other populations of O. nerka in that black kokanee display black nuptial colouration and they spawn between 20 to 70 m below the surface of lakes in the winter or early spring. Analysis of mitochondrial DNA and nine microsatellite loci supported the hypothesis that black kokanee in Lake Saiko and in Anderson and Seton lakes have had a diphyletic origin resulting from at least two episodes of divergence in the North Pacific basin. Further, black kokanee in the Anderson and Seton lakes system were genetically distinct from sympatric populations of sockeye salmon in Gates and Portage creeks (inlets to Anderson and Seton lakes, respectively) and were distinct from one another. Anderson and Seton lake black kokanee differed dramatically from one another in standard length at maturity, but no differences were found between the two populations in size-adjusted maximum body depth or in gill raker numbers. Independent origins of black kokanee represent novel diversity within O. nerka, are consistent with the importance of parallel evolution in the origin of biodiversity, and suggest that independent management regimes are required for the persistence of black kokanee biodiversity within a physically interconnected lake system.

show abstract

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 89%

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 94%

Section: Within-watershed Divergences Between Black Kokaneementioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The origin and genetic divergence of “black” kokanee, a novel reproductive ecotype ofOncorhynchus nerka

Moreira

Taylor

2015

Can. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

“…Similarly, genetic and morphological distinction of reproductive ecotypes of kokanee in Okanagan Lake, British Columbia, is maintained by spatiotemporal isolation, as one form spawns in the lake a few weeks after the other spawns in tributaries (Taylor, Harvey, Pollard, & Volpe, 1997;Winans, Pollard, & Kuligowski, 2003). The rarest and most unique reproductive ecotype of O. nerka is the black kokanee (treated as a separate species, O. kawamurae, by some authors), which is a darkly coloured non-anadromous form that spawns in the profundal zones of lakes up to 300 m deep (Moreira & Taylor, 2015;Nakabo, Nakayama, Muto, & Miyazawa, 2011;Nakabo et al, 2014) (Figure 2).…”

mentioning

confidence: 99%

Reliance on lakes by salmon, trout and charr (Oncorhynchus,SalmoandSalvelinus): An evaluation of spawning habitats, rearing strategies and trophic polymorphisms

Arostegui

Quinn

2019

Fish and Fisheries

View full text Add to dashboard Cite

Salmonid fishes may reside within or migrate between stream and lake habitats, or undergo anadromous migrations between freshwater and the ocean. While the degree of anadromy of salmonids has been thoroughly compared, no analogous review has examined the degree of lake use. To assess the extent of reliance on lake habitat in this family, we considered 16 species of salmon, trout and charr from the genera Oncorhynchus, Salmo and Salvelinus, comparing their (a) use of lakes as spawning habitat, (b) rearing strategies in lakes, and (c) occurrence and diversity of lacustrine trophic polymorphism. In identifying the primary life‐history patterns of each species and exploring the lesser‐known lacustrine behaviours, we found that the extent of reliance on lakes exhibits a negative association with the degree of anadromy. Oncorhynchus rely least on lakes, Salmo to an intermediate level and Salvelinus the most, opposite of the general prevalence of anadromy among these genera. Lakes are critical to adfluvial and lake‐resident salmonids, but they also support anadromous and fluvial life histories by providing spawning, rearing, overwintering and/or summer refuge habitat. Adfluviality, although a non‐anadromous life history, consists of similar migration‐related traits and behaviours as anadromy, including the parr–smolt transformation, sex‐biased patterns of migration and residency, and the presence of precocious males. Lakes support life‐history variants, reproductive ecotypes and trophic morphs unique to lacustrine habitat. Therefore, conservation of salmonids is dependent on maintaining the diversity and quality of their habitats, including lakes.

show abstract

Detection and morphological characteristics of “Kunimasu” (Oncorhynchus kawamurae)/”Himemasu” (O. nerka) hybrids in Lake Motosu, Yamanashi Prefecture, Japan

et al. 2018

View full text Add to dashboard Cite

Growth-related morphology of “Kunimasu” (Oncorhynchus kawamurae: family Salmonidae) from Lake Saiko, Yamanashi Prefecture, Japan

Cited by 6 publications

References 5 publications

The origin and genetic divergence of “black” kokanee, a novel reproductive ecotype ofOncorhynchus nerka

The origin and genetic divergence of “black” kokanee, a novel reproductive ecotype ofOncorhynchus nerka

Reliance on lakes by salmon, trout and charr (Oncorhynchus,SalmoandSalvelinus): An evaluation of spawning habitats, rearing strategies and trophic polymorphisms

Detection and morphological characteristics of “Kunimasu” (Oncorhynchus kawamurae)/”Himemasu” (O. nerka) hybrids in Lake Motosu, Yamanashi Prefecture, Japan

Contact Info

Product

Resources

About