Genetic Diversity of Sockeye Salmon of Cook Inlet, Alaska, and Its Application to Management of Populations Affected by the<i>Exxon Valdez</i>Oil Spill

Seeb, Lisa W.; Habicht, Chris; Templin, William D.; Tarbox, Kenneth E.; Davis, Randall Z.; Brannian, Linda K.; Seeb, James E.

doi:10.1577/1548-8659(2000)129<1223:gdosso>2.0.co;2

Cited by 51 publications

(53 citation statements)

References 32 publications

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“…While 97 and 98% of the estuarine and island-associated dolphins, respectively, in the baseline samples were correctly assigned to their population of origin, this value was 83% for the Western Coastal Stock baseline sample. Seeb et al (2000Seeb et al ( , 2007 suggested that mean correct assignments of ≥90% indicate highly identifiable groups, so confidence in the Barataria baseline samples is high. The lower value for the Western Coastal Stock baseline sample suggests that assignment confidence is still adequate but the baseline sample may not have been thoroughly sampled.…”

Section: Discussionmentioning

confidence: 99%

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Genetic assignment to stock of stranded common bottlenose dolphins in southeastern Louisiana after the Deepwater Horizon oil spill

Rosel¹,

Wilcox²,

Sinclair³

et al. 2017

Endang. Species. Res.

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Degradation of marine ecosystems is an increasing problem and extends beyond nearshore coastal waters with significant human development. However, measuring ecosystem damage and decreased ecosystem function can be difficult. Marine mammals have often been recommended as indicators for evaluating ecosystem health. Between March 2010 and July 2014, a significant cetacean unusual mortality event occurred across the northern Gulf of Mexico, where multiple demographically independent populations of common bottlenose dolphins Tursiops truncatus occur adjacent to one another. Some populations are fairly small and restricted to small habitat areas, while other populations have higher abundances and cover broader geographic ranges. An integral component to determining the impact of this event on these populations is identifying what percentage of each population the stranded animals comprise. We applied genetic assignment test methods to stranded dolphins from southeastern Louisiana to determine the proportion of dead dolphins that came from the local estuarine population versus the population found in adjacent coastal waters. Forty-one microsatellite loci were genotyped in 156 live dolphins sampled to represent the 2 potential stocks of origin and in 131 dead stranded dolphins of unknown origin. Both classical assignment tests and genetic stock identification methods indicated that approximately 6 to 7% of the sampled stranded dolphins originated from the Western Coastal Stock and the remainder from the smaller, estuarine stock in Barataria Bay, Louisiana.

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Section: Discussionmentioning

confidence: 99%

“…We performed 1000 simulations, sampled 200 individuals, and used the empirical baseline sample sizes. Seeb et al (2000Seeb et al ( , 2007 recommended that at least 90% correct assignment is necessary to have confidence in the MSA.…”

Section: Assignment Methodsmentioning

confidence: 99%

Genetic assignment to stock of stranded common bottlenose dolphins in southeastern Louisiana after the Deepwater Horizon oil spill

Rosel¹,

Wilcox²,

Sinclair³

et al. 2017

Endang. Species. Res.

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“…The hypothesis of equal relative productivities of different populations was tested by analysis of variance with the STATISTICA package [14]. The genetic differentiation of sockeye salmon was evaluated from the data both obtained by us and available from literature [5,[15][16][17]. The migration rate among subpopulations was estimated from the data reported in [4,6,7,[18][19][20].…”

Section: Methodsmentioning

confidence: 99%

Effective Size of the Early-Run Sockeye Salmon Oncorhynchus nerka Population of Lake Azabach’e, Kamchatka Peninsula Evaluation of the Effect of Interaction between Subpopulations within a Subdivided Population

Ефремов

2005

Russ J Genet

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The effect of subdivision on the effective size ( N e ) of the early-run sockeye salmon Oncorhynchus nerka population of Lake Azabach'e (Kamchatka Peninsula) has been studied. The mode of this effect is determined by the relative productivity of the subpopulations and its magnitude, by the rate of individual migration among subpopulations and genetic differentiation. If the contributions of subpopulations (offspring numbers) are different, genetic differentiation can reduce the N e of the subdivided population. At equal subpopulation contributions, genetic differentiation always increases the N e of the subdivided population in comparison with a panmictic population. We have found that all sockeye salmon subpopulations of Azabach'e Lake produce equal offspring numbers contributing to the next generation. The genetic differentiation between sockeye salmon subpopulations is low, and the subdivision increases the N e of the early-run race with reference to the sum of the effective sizes of the subpopulations by as little as 2%. ANIMAL GENETICS

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“…Sockeye Salmon tend to show higher levels of homing fidelity than other Pacific salmon (Hendry et al 2004). This homing behavior isolates spawning groups so that random genetic drift and local selection produce differences among groups, which can often be detected with molecular markers (Grant et al 1980;Hendry et al 1996Hendry et al , 2000Seeb et al 2000). Although lake and stream spawners often differ genetically, less variation among spawning groups occurs within lakes (Varnavskaya et al 1994;Burger et al 1995;Seeb et al 2000;Habicht et al 2007;Gomez-Uchida et al 2011).…”

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confidence: 99%

Homing of Sockeye Salmon within Hidden Lake, Alaska, Can Be Used to Achieve Hatchery Management Goals

Habicht

Tobias

Fandrei³

et al. 2013

N American J Fish Manag

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The supplementation of natural populations of Pacific salmon Oncorhynchus spp. with hatchery fish poses unique management challenges. Two such challenges addressed in this study are limiting the number of hatchery fish spawning with natural‐origin fish and maximizing the number of natural‐origin fish in the supplementation broodstock. In this study, we focus on stock enhancement of Sockeye Salmon O. nerka in Hidden Lake, Alaska, where the Trail Lakes Hatchery supplements the natural population with hatchery‐raised fry. Production in Hidden Lake is limited by the availability of spawning habitat and not by juvenile rearing capacity. The hatchery collects broodstock from the lake and releases fry with thermally marked otoliths at one of two primary natural spawning sites in Hidden Lake each year. During this study, an average of 58% of the fish returning to the lake through a weir on the outlet stream were of hatchery origin. However, an average of 88% of the fish at the release site were hatchery‐origin fish, indicating a nonrandom distribution of hatchery‐origin spawners. This pattern is consistent with homing to specific sites within the lake of either or both hatchery‐ and wild‐origin fish. However, this distribution results in a larger‐than‐desirable proportion of hatchery‐origin fish spawning with natural‐origin fish at the release site. The proportion of hatchery‐origin fish used for brood is also larger than desirable because the site is also the broodstock collection site. We propose that releasing hatchery fish at a new location removed from the primary spawning areas and the hatchery broodstock collection site will reduce the proportion of hatchery‐origin fish spawning with wild‐origin fish and increase the proportion of wild‐origin fish in the broodstock, if our results are due, at least in part, to homing of hatchery fish. Received May 12, 2012; accepted May 20, 2013

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Genetic Diversity of Sockeye Salmon of Cook Inlet, Alaska, and Its Application to Management of Populations Affected by theExxon ValdezOil Spill

Cited by 51 publications

References 32 publications

Genetic assignment to stock of stranded common bottlenose dolphins in southeastern Louisiana after the Deepwater Horizon oil spill

Genetic assignment to stock of stranded common bottlenose dolphins in southeastern Louisiana after the Deepwater Horizon oil spill

Effective Size of the Early-Run Sockeye Salmon Oncorhynchus nerka Population of Lake Azabach’e, Kamchatka Peninsula Evaluation of the Effect of Interaction between Subpopulations within a Subdivided Population

Homing of Sockeye Salmon within Hidden Lake, Alaska, Can Be Used to Achieve Hatchery Management Goals

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