Geoduck<i>Panopea generosa</i>Growth at Its Southern Distribution Limit in North America using a Multimodel Inference Approach

Hidalgo-de-la-Toba, José Ángel; González-Peláez, Sergio Scarry; Morales-Bojórquez, Enrique; Bautista-Romero, J. Jesús; Lluch‐Cota, Daniel B.

doi:10.2983/035.034.0112

Cited by 12 publications

(6 citation statements)

References 41 publications

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“…The lack of congruency between the two statistics indicated insufficient evidence in the Panopea globosa sizeat-age data to support the best candidate growth model (Dennis & Otten 2000). Discrepancies between AIC and BIC have also been reported by Hidalgo-de-la-Toba et al (2015) for Panopea generosa in its southern distribution limit. Both statistical criteria could not select a single model, although the Schnute and Johnson growth function analyzed showed similar fitted trajectories.…”

Section: Discussionmentioning

confidence: 81%

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Selection of Models to PredictPanopea globosaGrowth: Application of a Mixture Probability Distribution Function

Morales-Bojórquez¹,

Aragón-Noriega

Aguirre‐Villaseñor

et al. 2015

Journal of Shellfish Research

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Section: Discussionmentioning

confidence: 81%

“…Recently, the multimodel inference approach as an alternative analysis to identify growth patterns in geoduck species has been applied (Cruz-Va´squez et al 2012, Hidalgo-de-la-Toba et al 2015. It is not uncommon for growth rates in the same geoduck species examined from the same geographic area to exhibit marked variability.…”

Section: Introductionmentioning

confidence: 99%

Selection of Models to PredictPanopea globosaGrowth: Application of a Mixture Probability Distribution Function

Morales-Bojórquez¹,

Aragón-Noriega

Aguirre‐Villaseñor

et al. 2015

Journal of Shellfish Research

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“…The interpretation of our findings indicates that band formation in P . generosa , a species with temperate affinity [ 18 ], has a slow and continuous increment, reaching its maximum growth in 6 months, and its shape is more similar to the theoretical sawtooth shape of the MIR progression in an individual. Conversely, for P .…”

Section: Discussionmentioning

confidence: 99%

“…Permission to use these commercial fisheries data was granted by the Mexican federal government (Comisión Nacional de Acuacultura y Pesca) through a scientific collecting permit number DGOPA-10885-091006-4963 with fishermen of the Sociedad Cooperativa Pescadores de Altamar y Acuícola Bahía Santa Maria SCRL in Bahía Magdalena, as well as through biological samples provided by Dr. Alma Rosa García Juárez of the Centro Regional de Investigación Pesquera in Ensenada with the logistic support of fishermen of the Sociedad de Producción Rural Punta Canoas SRLCV in Punta Canoas. For details on the capture method and sample processing, see Hidalgo-de-la-Toba et al [ 18 ] and González-Peláez et al [ 10 ]. Growth increments in the shell of Panopea species are delimited by distinctive growth marks that are deposited periodically.…”

Section: Methodsmentioning

confidence: 99%

Modeling the temporal periodicity of growth increments based on harmonic functions

et al. 2018

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Age estimation methods based on hard structures require a process of validation to confirm the periodical pattern of growth marks. Among such processes, one of the most used is the marginal increment ratio (MIR), which was stated to follow a sinusoidal cycle in a population. Despite its utility, in most cases, its implementation has lacked robust statistical analysis. Accordingly, we propose a modeling approach for the temporal periodicity of growth increments based on single and second order harmonic functions. For illustrative purposes, the MIR periodicities for two geoduck species (Panopea generosa and Panopea globosa) were modeled to identify the periodical pattern of growth increments in the shell. This model identified an annual periodicity for both species but described different temporal patterns. The proposed procedure can be broadly used to objectively define the timing of the peak, the degree of symmetry, and therefore, the synchrony of band deposition of different species on the basis of MIR data.

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“…Reported average valve lengths of P. generosa range from 114 mm to 139 mm (Goodwin and Pease 1991; Rocha-Olivares et al 2010; Hidalgo-De-La-Toba et al 2015), with the largest lengths observed in BritishColumbia(Bureau et al 2002). Average weights of P. generosa range from 512 g to 1,510 g, with the heaviest clams found in British Columbia(Goodwin and Pease 1987;Bureau et al 2002;Rocha-Olivares et al 2010;Hidalgo-De-La- Toba et al 2015).…”

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confidence: 99%

Geographic Variation in the Life History and Morphology of the Pacific Geoduck, Panopea generosa

Navas¹

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However insurmountable a project may seem, with the help of great mentorship and an amazing team, anything is possible. I have been blessed with one of the best mentors and advisors a student could wish for. Dr. Scott Hamilton has been essential in making me believe that I too can be a real Scientist. I have struggled and overcome many academic challenges in the past four years, but Scott has always been there to support me. Henry Ford once said: "Obstacles are those frightful things you see when you take your eyes off your goals." Well, Scott, thank you for always getting me refocused on my goals! I will always remain grateful for your advisorship. I would like to thank my committee member Jon Geller for accepting me into the MLML program and his expertise in Invertebrate Zoology. Words cannot describe my gratitude to my committee member Brent Vadopalas. Brent, you have encouraged me to present my research at conferences and taught me so much about geoducks. My thesis project took on new dimensions, literally, because of your encouragement. Prior to my commencing my academic career at MLML I was under the impression that geoducks were waterfowl. I would like to thank Kai Lampson for introducing me to this long-lived burrowing clam and the need for understanding population dynamics in California. I would also like to thank Ignacio Leyva-Valencia, Chris Klingenberg, and Dave Sheets for opening my eyes to the world of geometric morphometrics and shape analysis. The Washington Department of Fish and Wildlife sponsored me to learn their aging vi techniques, and I will always cherish my time there. Thank you Bob Sizemore and Bethany Stevick for allowing me to spend three weeks in your aging lab in Olympia. Fieldwork was a large portion of my thesis, which was accomplished with the help of many hard-working and fearless colleagues at MLML and the CA Department of Fish and Wildlife. I will always appreciate and remember fondly the early mornings and seemingly endless hours of sampling and processing that

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GeoduckPanopea generosaGrowth at Its Southern Distribution Limit in North America using a Multimodel Inference Approach

Cited by 12 publications

References 41 publications

Selection of Models to PredictPanopea globosaGrowth: Application of a Mixture Probability Distribution Function

Selection of Models to PredictPanopea globosaGrowth: Application of a Mixture Probability Distribution Function

Modeling the temporal periodicity of growth increments based on harmonic functions

Geographic Variation in the Life History and Morphology of the Pacific Geoduck, Panopea generosa

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