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Spear LN, Kohin S, Mohan JA, Wells RJD. Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean. JOURNAL OF FISH BIOLOGY 2024; 104:104-112. [PMID: 37624583 DOI: 10.1111/jfb.15538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 08/26/2023]
Abstract
Validation of band pair deposition rates in elasmobranch vertebrae is essential for accurate age estimation using band pair counting techniques. We present a validation study of the vertebral band pair deposition rate for juvenile common thresher sharks Alopias vulpinus in the northeastern Pacific Ocean (NEPO) using tag and recapture with oxytetracycline (OTC) injection. A total of 14 juvenile A. vulpinus marked with OTC from 1998 through 2013 were recaptured with times at liberty ranging from 1.08 to 3.81 years with an average of 2.14 years (±0.97 years standard deviation, SD). Shark size ranged from 80 to 128 cm fork length (LF) at the time of OTC injection and from 112 to 168 cm LF for those measured at recapture. The slopes of the relationships between band pairs post OTC and years at liberty for each reader ranged from 0.84 to 0.95, slightly lower than the 1.0 slope expected from annual band pair formation. These findings preliminarily support previous age and growth assumptions based on a one band pair per year deposition rate. However, high variation in band pair deposition rates between samples, coupled with regression slopes falling just under one band pair per year, indicates that further investigation is needed to refine band pair deposition rate estimates.
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Affiliation(s)
- Luka N Spear
- Fisheries Resources Division, National Marine Fisheries Service, Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, La Jolla, California, USA
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas, USA
| | - Suzanne Kohin
- Fisheries Resources Division, National Marine Fisheries Service, Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, La Jolla, California, USA
| | - John A Mohan
- School of Marine and Environmental Programs, University of New England, Biddeford, Maine, USA
| | - R J David Wells
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas, USA
- Department of Ecology & Conservation Biology, Texas A&M University, College Station, Texas, USA
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Bizzarro JJ, Dewitt L, Wells BK, Curtis KA, Santora JA, Field JC. A multi-predator trophic database for the California Current Large Marine Ecosystem. Sci Data 2023; 10:496. [PMID: 37500662 PMCID: PMC10374555 DOI: 10.1038/s41597-023-02399-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
The California Current Trophic Database (CCTD) was developed at NOAA Southwest Fisheries Science Center in collaboration with numerous diet data contributors. We compiled the CCTD from twenty-four data sets, representing both systematic collections and directed trophic studies. Diet composition data, including stomach and scat samples, were obtained from 105,694 individual predators among 143 taxa collected throughout the California Current Large Marine Ecosystem (CCLME) from 1967-2019. Predator taxa consist of squids (n = 5), elasmobranchs (n = 13), bony fishes (n = 118), and marine mammals (n = 7). Extensive time series are available for some predators (e.g., California Sea Lion, Pacific Hake, Chinook Salmon). The CCTD represents the largest compilation of raw trophic data within the CCLME, allowing for more refined analyses and modeling studies within this region. Our intention is to further augment and periodically update the dataset as additional historical or contemporary data become available to increase its utility and impact.
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Affiliation(s)
- Joseph J Bizzarro
- Fisheries Collaborative Program, Cooperative Institute for Marine Ecosystems and Climate, University of California, Santa Cruz, 110 McAllister Way, Santa Cruz, California, 95060, USA.
- Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 110 McAllister Way, Santa Cruz, California, 95060, USA.
| | - Lynn Dewitt
- Environmental Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 110 McAllister Way, Santa Cruz, California, 95060, USA
| | - Brian K Wells
- Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 110 McAllister Way, Santa Cruz, California, 95060, USA
| | - K Alexandra Curtis
- Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 8901 La Jolla Shores Dr., La Jolla, California, 92037, USA
| | - Jarrod A Santora
- Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 110 McAllister Way, Santa Cruz, California, 95060, USA
| | - John C Field
- Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 110 McAllister Way, Santa Cruz, California, 95060, USA
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Morzaria-Luna HN, Turk-Boyer P, Hernández JMD, Polanco-Mizquez E, Downton-Hoffmann C, Cruz-Piñón G, Carrillo-Lammens T, Loaiza-Villanueva R, Valdivia-Jiménez P, Sánchez-Cruz A, Peña-Mendoza V, López-Ortiz AM, Koch V, Vázquez-Vera L, Arreola-Lizárraga JA, Amador-Castro IG, Suárez Castillo AN, Munguia-Vega A. Fisheries management tools to support coastal and marine spatial planning: A case study from the Northern Gulf of California, Mexico. MethodsX 2020; 7:101108. [PMID: 33145184 PMCID: PMC7596294 DOI: 10.1016/j.mex.2020.101108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 10/12/2020] [Indexed: 10/27/2022] Open
Abstract
A management approach was developed that combined spatial and non-spatial tools to inform a Coastal and Marine Spatial Planning Process (CMSP) in the Puerto Peñasco-Puerto Lobos Coastal Corridor, Northern Gulf of California, Sonora, Mexico. Four fisheries management tools were applied with an emphasis on ecosystem level management for eleven small-scale fisheries. Two spatial management tools, using a spatial prioritization approach, were combined with a permit regularization process, a non-spatial quota prioritization, and a tradeoff analysis in a novel way: • Locally Managed Marine Areas were developed, these are spatial areas where individual community fishermen are assigned the rights to harvest and manage specific fisheries within defined geographic areas. • Fishery refuges that incorporate information on fisheries, ecological importance, and connectivity. • A non-spatial quota prioritization process using a framework for the integrated assessment of stocks, encompassing a vulnerability analysis, a sustainability analysis, and a management framework analysis. • A trade-off analysis of the combination of these different management tools, using an Atlantis ecosystem model for the northern Gulf of California, that tested the ecosystem effects of alternative scenarios to assess benefits in support of ecosystem-based management.
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Affiliation(s)
- Hem Nalini Morzaria-Luna
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States.,Visiting Scientist. Northwest Fisheries Science Center, NOAA. 2725 Montlake Blvd. Seattle WA 98112, United States
| | - Peggy Turk-Boyer
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States.,Director Emeritus. CEDO Intercultural, P.O. Box 44208, Tucson, AZ 85733, United States
| | - José Manuel Dorantes Hernández
- Departamento de Ciencias Marinas y Costeras. Universidad Autónoma de Baja California Sur. Carretera al Sur Km 5.5, Apartado Postal 19-B, C.P., La Paz, Baja California Sur 23080, Mexico
| | - Elia Polanco-Mizquez
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Caroline Downton-Hoffmann
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Gabriela Cruz-Piñón
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States.,Departamento de Ciencias Marinas y Costeras. Universidad Autónoma de Baja California Sur. Carretera al Sur Km 5.5, Apartado Postal 19-B, C.P., La Paz, Baja California Sur 23080, Mexico
| | - Tonatiuh Carrillo-Lammens
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Rene Loaiza-Villanueva
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Paloma Valdivia-Jiménez
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Angeles Sánchez-Cruz
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Valeria Peña-Mendoza
- CEDO Intercultural, Apartado Postal #53. Puerto Peñasco, Sonora, México C.P. 83550. / P.O. Box 44208, Tucson, AZ 85733, United States
| | - Ariadna Montserrat López-Ortiz
- Departamento de Ciencias Marinas y Costeras. Universidad Autónoma de Baja California Sur. Carretera al Sur Km 5.5, Apartado Postal 19-B, C.P., La Paz, Baja California Sur 23080, Mexico
| | - Volker Koch
- Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, P.O. Box 5180, Eschborn 65726, Germany.,Departamento de Ecología Marina, Centro de Investigación Científica y Educación Superior de Ensenada, Ensenada, Baja California, Mexico
| | | | - José Alfredo Arreola-Lizárraga
- Centro de Investigaciones Biológicas del Noroeste, S.C. Campus Guaymas, Km 2.3 carr. a Las Tinajas predio El Tular s/n, Guaymas, Sonora CP. 85454, Mexico
| | - Imelda G Amador-Castro
- Comunidad y Biodiversidad, A.C. Isla del Peruano 215, Lomas de Miramar, Guaymas,Sonora, CP. 85448, Mexico
| | - Alvin N Suárez Castillo
- Comunidad y Biodiversidad, A.C. Isla del Peruano 215, Lomas de Miramar, Guaymas,Sonora, CP. 85448, Mexico
| | - Adrian Munguia-Vega
- Comunidad y Biodiversidad, A.C. Isla del Peruano 215, Lomas de Miramar, Guaymas,Sonora, CP. 85448, Mexico.,Desert Laboratory on Tumamoc Hill, University of Arizona, Tucson, AZ 85721, United States
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Baker DJ, Garnett ST, O'Connor J, Ehmke G, Clarke RH, Woinarski JCZ, McGeoch MA. Conserving the abundance of nonthreatened species. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2019; 33:319-328. [PMID: 30047186 DOI: 10.1111/cobi.13197] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 05/20/2018] [Accepted: 07/23/2018] [Indexed: 05/28/2023]
Abstract
Human modification of the environment is driving declines in population size and distributional extent of much of the world's biota. These declines extend to many of the most abundant and widespread species, for which proportionally small declines can result in the loss of vast numbers of individuals, biomass, and interactions. These losses could have major localized effects on ecological and cultural processes and services without elevating a species' global extinction risk. Although most conservation effort is directed at species threatened with extinction in the very near term, the value of retaining abundance regardless of global extinction risk is justifiable based on many biodiversity or ecosystem service metrics, including cultural services, at scales from local to global. The challenges of identifying conservation priorities for widespread and abundant species include quantifying the effects of species' abundance on services and understanding how these effects are realized as populations decline. Negative effects of population declines may be disconnected from the threat processes driving declines because of species movements and environment flows (e.g., hydrology). Conservation prioritization for these species shares greater similarity with invasive species risk assessments than extinction risk assessments because of the importance of local context and per capita effects of abundance on other species. Because conservation priorities usually focus on preventing the extinction of threatened species, the rationale and objectives for incorporating declines of nonthreatened species must be clearly articulated, going beyond extinction risk to encompass the range of likely harmful effects (e.g., secondary extinctions, loss of ecosystem services) if declines persist or are not reversed. Research should focus on characterizing the effects of local declines in species that are not threatened globally across a range of ecosystem services and quantifying the spatial distribution of these effects through the distribution of abundance. The case for conserving abundance in nonthreatened species can be made most powerfully when the costs of losing this abundance are better understood.
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Affiliation(s)
- David J Baker
- School of Biological Sciences, Monash University, Clayton, VIC, 3800, Australia
| | - Stephen T Garnett
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, N.T., 0909, Australia
| | - James O'Connor
- BirdLife Australia, 60 Leicester Street, Carlton, VIC, 3053, Australia
| | - Glenn Ehmke
- BirdLife Australia, 60 Leicester Street, Carlton, VIC, 3053, Australia
| | - Rohan H Clarke
- School of Biological Sciences, Monash University, Clayton, VIC, 3800, Australia
| | - John C Z Woinarski
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, N.T., 0909, Australia
| | - Melodie A McGeoch
- School of Biological Sciences, Monash University, Clayton, VIC, 3800, Australia
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