scholarly journals Is isolation by adaptation driving genetic divergence among proximate Dolly Varden char populations?

2014 ◽  
Vol 4 (12) ◽  
pp. 2515-2532 ◽  
Author(s):  
Morgan H. Bond ◽  
Penelope A. Crane ◽  
Wesley A. Larson ◽  
Tom P. Quinn
Keyword(s):  
Genetic Divergence ◽  
Dolly Varden ◽  
Dolly Varden Char

Genetic divergence of mitochondrial DNA in white char Salvelinus albus and northern Dolly Varden char Salvelinus malma malma

2010 ◽  
Vol 46 (3) ◽  
pp. 345-355 ◽  
Author(s):  
A. G. Oleinik ◽  
L. A. Skurikhina ◽  
Vl. A. Brykov
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Divergence ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Dolly Varden Char ◽  
Northern Dolly Varden

Relationships between body size and secondary sexual characters, and sperm characters in male Dolly Varden char (Salvelinus malma )

2016 ◽  
Vol 26 (3) ◽  
pp. 397-402 ◽  
Author(s):  
Toshiaki Yamamoto ◽  
Noritaka Hirohashi ◽  
Eiji Fujiwara ◽  
Tatsuya Suzuki ◽  
Hatsuna Maruta ◽  
...  
Keyword(s):  
Body Size ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Dolly Varden Char ◽  
Secondary Sexual Characters ◽  
Sperm Characters ◽  
Secondary Sexual

Landlocked South Asian Dolly Varden char Salvelinus curilus (Salmonidae) from the basin of Petrovskoe reservoir (Petrovka River, Primorye)

2014 ◽  
Vol 54 (6) ◽  
pp. 428-432
Author(s):  
N. V. Kolpakov ◽  
L. N. Kim ◽  
P. G. Milovankin
Keyword(s):  
South Asian ◽  
Dolly Varden ◽  
Dolly Varden Char

Aggressive interactions affect foraging and use of space in a drift foraging salmonid, Salvelinus malma (Salmoniformes: Salmonidae)

2019 ◽  
Vol 187 (3) ◽  
pp. 774-781 ◽  
Author(s):  
Jeffrey L Cullen ◽  
Gary D Grossman
Keyword(s):  
Foraging Behaviour ◽  
Field Studies ◽  
Habitat Choice ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Intraspecific Interactions ◽  
Use Of Space ◽  
Aggressive Interactions ◽  
Dolly Varden Char ◽  
Alaskan Stream

Abstract Although intraspecific interactions likely affect habitat choice and foraging behaviour in animals, our knowledge regarding how these factors interact is frequently limited to either lab or field studies, but not both. We observed pairs of dominant and subordinate drift-foraging Dolly Varden char (Salvelinus malma) in an Alaskan stream, and quantified intraspecific interactions and foraging behaviour. Dominant individuals had higher foraging rates, occupied slower holding velocities and were displaced shorter distances during bouts compared to subordinate individuals. Individuals initiated bouts more frequently from the downstream position, than from lateral or upstream positions. Dominant individuals were more likely to occupy the upstream position after a bout than subordinates, which ensures that dominants have the first opportunity to capture drifting prey.

Combined phylogenetic analysis of ribosomal ITS1 sequences and new chromosome data supports three subgroups of Dolly Varden char (Salvelinus malma)

1999 ◽  
Vol 56 (8) ◽  
pp. 1504-1511 ◽  
Author(s):  
Ruth B Phillips ◽  
Linda I Gudex ◽  
Kathleen M Westrich ◽  
Alfred DeCicco
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequences ◽  
Lake Trout ◽  
Salvelinus Alpinus ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Dolly Varden Char ◽  
The North ◽  
Rdna Sequences ◽  
Kamchatka River

A phylogenetic analysis of the subspecies of Salvelinus malma (Dolly Varden char) was done using DNA sequences from the first internal transcribed spacer (ITS1) of the ribosomal DNA (rDNA). Sequences were obtained from the northern S. malma malma from the Noatak River, Alaska, and the Kamchatka River, Russia; from the southern North American form S. malma lordi from the Fox River, Kenai peninsula, and Auke Bay near Juneau, Alaska; and from the southern Asian form S. malma krascheninnikovi from Belaya River in Sakhalin Island, Russia. These sequences were combined with others from Salvelinus alpinus (Arctic char) from several locations in the North Pacific and Europe and analyzed using maximum parsimony and neighbor joining algorithms with Salvelinus namaycush (lake trout) as an outgroup. The resulting trees had two well-supported groups: S. m. malma and S. m. krascheninnikovi in one group and S. m. lordi and various populations of S. alpinus in the other. Salvelinus m. malma and S. m. krascheninnikovi were sister taxa, and S. m. lordi was most closely related to S. alpinus from Northwest Territories (S. a. erythrinus). New chromosome data from S. m. malma from northwestern Alaska supported the three named subspecies because S. m. malma from both Alaska and Russia have 2n = 78 compared with 2n = 82 for the two southern forms and the location of the nuclear organizer regions (NORs) was different in each of the three subspecies.

Osmoregulatory Ability of Wild Coho Salmon (Oncorhynchus kisutch) and Dolly Varden Char (Salvelinus malma) Smolts

1988 ◽  
Vol 45 (8) ◽  
pp. 1487-1490 ◽  
Author(s):  
Scott W. Johnson ◽  
Jonathan Heifetz
Keyword(s):  
Water Temperature ◽  
Coho Salmon ◽  
Oncorhynchus Kisutch ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Small Stream ◽  
Fish Size ◽  
Dolly Varden Char ◽  
Seawater Challenge ◽  
Osmoregulatory Ability

Osmoregulatory ability of wild coho salmon (Oncorhynchus kisutch) and Dolly Varden char (Salvelinus malma) smolts migrating from a small stream in southeastern Alaska was assessed by plasma Na+ levels after a 24-h seawater challenge. Osmoregulatory ability of coho salmon was unaffected by time of out-migration, water temperature, and fish size. Osmoregulatory ability of Dolly Varden char was apparently affected by time of out-migration or water temperature but not by fish size. Char migrating in the first half of the migration period, when water temperature was usually < 8.0 °C, had lower plasma Na+ levels than did char migrating in the second half when temperatures were [Formula: see text]. A plasma Na+ threshold of 170 mmol∙L−1, used by others to separate smolts from silvery parr, indicated that 70% of the coho salmon and 80% of the Dolly Varden char we sampled were physiologically prepared to enter seawater. The remaining fish may have suffered some level of osmoregulatory stress.

Phylogeography of southern Asian Dolly Varden char Salvelinus malma krascheninnikovi: Genealogical analysis of mitochondrial DNA

2010 ◽  
Vol 46 (2) ◽  
pp. 198-209 ◽  
Author(s):  
A. G. Oleinik ◽  
L. A. Skurikhina ◽  
E. I. Chukova
Keyword(s):  
Mitochondrial Dna ◽  
Dolly Varden ◽  
Salvelinus Malma ◽  
Dolly Varden Char ◽  
Genealogical Analysis

A Normal, Synchronous Hermaphrodite Dolly Varden Char

1968 ◽  
Vol 97 (2) ◽  
pp. 201-202 ◽  
Author(s):  
A. H. Acara
Keyword(s):  
Dolly Varden ◽  
Dolly Varden Char

Phylogeography of mitochondrial DNA in South Asian Dolly Varden char Salvelinus curilus Pallas, 1814 (Salmoniformes, Salmonidae): Mediated gene introgression?

2007 ◽  
Vol 43 (2) ◽  
pp. 165-176 ◽  
Author(s):  
S. V. Shedko ◽  
L. K. Ginatulina ◽  
I. L. Miroshnichenko ◽  
G. A. Nemkova
Keyword(s):  
Mitochondrial Dna ◽  
South Asian ◽  
Gene Introgression ◽  
Dolly Varden ◽  
Dolly Varden Char

Ontogenetic shift to dependence on salmon-derived nutrients in Dolly Varden char from the Iliamna River, Alaska

2014 ◽  
Vol 97 (12) ◽  
pp. 1323-1333 ◽  
Author(s):  
Troy Jaecks ◽  
Thomas P. Quinn
Keyword(s):  
Ontogenetic Shift ◽  
Dolly Varden ◽  
Dolly Varden Char
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