A Status Review of Pinto Abalone (<i>Haliotis kamtschatkana</i>) Along the West Coastof North America: Interpreting Trends, Addressing Uncertainty, and Assessing Risk for a Wide-Ranging Marine Invertebrate

Neuman, Melissa J.; Busch, Shallin; Friedman, Carolyn S.; Gruenthal, Kristen; Gustafson, Rick; Kushner, David J.; Stierhoff, Kevin L.; VanBlaricom, Glenn R.; Wright, Sadie K.

doi:10.2983/035.037.0415

Cited by 10 publications

(4 citation statements)

References 109 publications

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“…While Rugoconites is more common in the ORS Facies, it is found in numerous environments with no apparent preference for substrate, suggesting that a selective larval stage is unlikely. Most benthic invertebrates need to be near a conspecific to reproduce sexually, whether the distance is centimeters, millimeters, or kilometers in scale, although, there are taxa with reproductive ranges that are over thousands of kilometers in scale (Davis and Campbell 1996; Takabayashi et al 2002; Neuman et al 2018; Rodriguez-Perez et al 2020). The specific reproductive range of Rugoconites is unknown; however, the common occurrence of single or dispersed pairs of Rugoconites on surfaces is not consistent with larval stages settling in locations relatively near conspecifics.…”

Section: Discussionmentioning

confidence: 99%

Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia

Boan¹,

Evans²,

Hall³

et al. 2023

Paleobiology

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The spatial distribution of in situ sessile organisms, including those from the fossil record, provides information about life histories, such as possible dispersal and/or settlement mechanisms, and how taxa interact with one another and their local environments. At Nilpena Ediacara National Park (NENP), South Australia, the exquisite preservation and excavation of 33 fossiliferous bedding planes from the Ediacara Member of the Rawnsley Quartzite reveals in situ communities of the Ediacara Biota. Here, the spatial distributions of three relatively common taxa, Tribrachidium, Rugoconites, and Obamus, occurring on excavated surfaces were analyzed using spatial point pattern analysis. Tribrachidium have a variable spatial distribution, implying that settlement or post-settlement conditions/preferences had an effect on populations. Rugoconites display aggregation, possibly related to their reproductive methods in combination with settlement location availability at the time of dispersal and/or settlement. Additionally, post-settlement environmental controls could have affected Rugoconites on other surfaces, resulting in lower populations and densities. Both Tribrachidium and Rugoconites also commonly occur as individuals or in low numbers on a number of beds, thus constraining possible reproductive strategies and environmental/substrate preferences. The distribution of Obamus is consistent with selective settlement, aggregating near conspecifics and on substrates of mature microbial mat. This dispersal process is the first example of substrate-selective dispersal among the Ediacara Biota, thus making Obamus similar to numerous modern sessile invertebrates with similar dispersal and settlement strategies.

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Section: Discussionmentioning

confidence: 99%

Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia

Boan¹,

Evans²,

Hall³

et al. 2023

Paleobiology

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“…Along the Pacific Coast of North America, all of the seven extant abalone species are listed by the IUCN Red List as either endangered or critically endangered (Peters & Rogers‐Bennett, 2021). The widest ranging of these species, pinto or northern abalone ( Haliotis kamtschatkana Jonas, 1845), have become rare in many parts of their range (Neuman et al, 2018). In the State of Washington, pinto abalone have undergone a 97% decline since the early 1990s despite a 1994 harvest ban (Carson et al, 2019; Carson & Ulrich, 2019).…”

Section: Introductionmentioning

confidence: 99%

Detecting endangered pinto abalone (Haliotis kamtschatkana) using environmental DNA: Comparison of ddPCR, qPCR, and conventional diver surveys

et al. 2022

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“…Pinto abalone (Haliotis kamtschatkana Jonas, 1845), the widest ranging abalone species along the Pacific coast of North America, have become rare in many parts of their range as a result of overharvest (Neuman et al, 2018). In the southern Salish Sea, Washington, USA, pinto abalone have undergone a 97% decline since the early 1990s, despite a 1994 harvest ban .…”

Section: Introductionmentioning

confidence: 99%

“…Pinto abalone are now considered threatened with local extinction, which led the State of Washington to list the species as a State Endangered Species in 2019. Federally, pinto abalone are listed as a Species of Concern (Neuman et al, 2018). As with other imperiled abalone species, low remaining populations of pinto abalone in Washington waters are thought to be below critical thresholds for successful reproduction (Rothaus et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Endangered Pinto Abalone (Haliotis kamtschatkana) Stock Restoration in the Southern Salish Sea From a Genomic Perspective

Dimond

Bouma²,

Carson³

et al. 2022

Front. Conserv. Sci.

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Declines in abalone populations throughout the world have led to conservation measures including fishery closures and captive breeding programs aimed at stock restoration. Restoration of endangered pinto abalone (Haliotis kamtschatkana) in the southern Salish Sea (Washington State, USA) began in the mid-2000s, and since 2009, nearly 40,000 hatchery-produced juvenile abalone have been outplanted at 21 restoration sites. We used genotyping by sequencing to evaluate the efficacy of this restoration program from a genomic standpoint. Over 49,000 SNPs and 8,000 haplotypes were evaluated across both wild and hatchery-produced abalone. Compared to wild abalone, hatchery-bred abalone had similar heterozygosity, lower allelic richness and effective population size, and higher relatedness. However, more recently bred hatchery progeny sampled prior to outplanting showed intermediate allelic richness, lower relatedness and genomic divergence, and higher effective population size compared to older hatchery outplants sampled after outplanting. We attribute these differences to genetic drift among older hatchery outplants due to mortality and emigration as well as larger numbers of broodstock families in more recent hatchery operations. This suggests that current hatchery practices that combine higher output with larger numbers of broodstock families may more effectively overcome the effects of genetic drift. Effective population size estimates among wild Salish Sea abalone had no upper limit, indicating that these abalone have sufficient genetic diversity to support the restoration program, but also highlighting the need for large broodstock sizes to overcome potential Ryman-Laikre effects. The greatest challenge for the future of the restoration program will be finding sufficient numbers of wild broodstock in the Salish Sea, where pinto abalone remain extremely rare.

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A Status Review of Pinto Abalone (Haliotis kamtschatkana) Along the West Coastof North America: Interpreting Trends, Addressing Uncertainty, and Assessing Risk for a Wide-Ranging Marine Invertebrate

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 10 publications

References 109 publications

Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia

Spatial distributions of Tribrachidium, Rugoconites, and Obamus from the Ediacara Member (Rawnsley Quartzite), South Australia

Detecting endangered pinto abalone (Haliotis kamtschatkana) using environmental DNA: Comparison of ddPCR, qPCR, and conventional diver surveys

Efficacy of Endangered Pinto Abalone (Haliotis kamtschatkana) Stock Restoration in the Southern Salish Sea From a Genomic Perspective

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