Stock Origins of Subadult and Adult Atlantic Sturgeon, Acipenser oxyrinchus, in a Non-natal Estuary, Long Island Sound

Waldman, John R.; King, Tim L.; Savoy, Tom; Maceda, Lorraine; Grunwald, Cheryl; Wirgin, Isaac

doi:10.1007/s12237-012-9573-0

Cited by 29 publications

(54 citation statements)

References 23 publications

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“…Given the overlapping marine distributions and shared threats among populations and DPSs, the pooled estimate of adult survival should be useful for large-scale recovery planning (Dunton et al 2012;Waldman et al 2013;Wirgin et al 2015aWirgin et al , 2015b. The survival estimate for the ACE basin is probably low, as nine fish that were not detected during the final study FIGURE 2.…”

Section: Atlantic Sturgeon Survival In Four River Basinsmentioning

confidence: 99%

Estimated Survival of Subadult and Adult Atlantic Sturgeon in Four River Basins in the Southeastern United States

Hightower¹,

Loeffler²,

Post

et al. 2015

Mar Coast Fish

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Prompted by concerns about the status of Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus, in 2012 the National Oceanic and Atmospheric Administration listed one distinct population segment (DPS) as threatened (Gulf of Maine) and listed the remaining four DPSs as endangered (New York Bight, Chesapeake Bay, Carolina, and South Atlantic). To provide information for recovery planning, we estimated the survival of subadult and adult Atlantic Sturgeon in two river basins within the Carolina DPS (Roanoke and Cape Fear rivers, North Carolina) and two basins within the South Atlantic DPS (Ashepoo–Combahee–Edisto rivers [ACE], South Carolina; Altamaha River, Georgia). Estimated detection probability varied strongly by season but was similar among river basins, likely reflecting a winter migration into marine waters with minimal receiver coverage. Apparent monthly survival was very high and precisely estimated for the Roanoke River (0.985; 95% credible interval [CI] = 0.970–0.995), Cape Fear River (0.979; 95% CI = 0.971–0.986), ACE (0.989; 95% CI = 0.979–0.993), and Altamaha River (0.985; 95% CI = 0.973–0.994) basins. A pooled estimate for 87 adults from all four basins was 0.988 (95% CI = 0.982–0.992). The monthly rates implied annual apparent survival rates of 0.839 (Roanoke River basin), 0.778 (Cape Fear River basin), 0.871 (ACE basin), and 0.842 (Altamaha River basin); the pooled estimate for adults was 0.860. Our estimated survival rates were similar to other recent estimates for Atlantic Sturgeon but lower than recent estimates for several populations of Gulf Sturgeon A. oxyrinchus desotoi. Recovery of Atlantic Sturgeon in these southeastern rivers will occur more quickly if survival can be increased to a level that is consistent with published estimates of true natural mortality (0.03–0.07; annual survival ≥ 0.93). Received March 18, 2015; accepted August 26, 2015

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Section: Atlantic Sturgeon Survival In Four River Basinsmentioning

confidence: 99%

Estimated Survival of Subadult and Adult Atlantic Sturgeon in Four River Basins in the Southeastern United States

Hightower¹,

Loeffler²,

Post

et al. 2015

Mar Coast Fish

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“…We quantitatively compared the diversity of source reference populations to the Delaware coast collection to that in collections that we previously made from the Bay of Fundy and Long Island Sound (Waldman et al 2013). As expected, we found that variation of the number of reference populations contributing to the Delaware coast collection expressed as bits was significantly greater (P < 0.001) than for the Bay of Fundy or Long Island Sound collections (Delaware coast D 2.53 bits, Long Island Sound D 1.83 bits, and Bay of Fundy D 1.14 bits).…”

Section: Resultsmentioning

confidence: 99%

“…These diploid markers included LS19, LS39, LS54, and LS68 (May et al 1997); Aox23 and AoxD45 (King et al 2001); and Aox44, AoxD165, AoxD170, AoxD188, and AoxD24 (Henderson-Arzapalo and King 2002). These loci were selected because they could be reliably scored, are unlinked, and in previous studies were effective in distinguishing reference specimens from spawning populations (King et al 2001;Wirgin et al 2012;Waldman et al 2013).…”

Section: Methodsmentioning

confidence: 99%

“…The baseline dataset consisted of multilocus genotypes for 427 specimens genotyped at 11 microsatellites and mtDNA control region sequence haplotypes coded as a homozygous diploid locus (e.g., haplotype A, 001001). Empirical analyses performed to estimate the accuracy of identification of individuals to natal origin indicated mean accuracy to individual population was 85% and to DPS was 97% (Waldman et al 2013; Figure 2). …”

Section: Methodsmentioning

confidence: 99%

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Origin of Atlantic Sturgeon Collected off the Delaware Coast during Spring Months

Wirgin

Breece

Fox

et al. 2015

N American J Fish Manag

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Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus was federally listed under the U.S. Endangered Species Act as five distinct population segments (DPS). Currently, at least 18 estuaries coastwide host spawning populations and the viability of these vary, requiring differing levels of protection. Subadults emigrate from their natal estuaries to marine waters where they are vulnerable to bycatch; one of the major threats to the rebuilding of populations. As a result, identifying the population origin of Atlantic Sturgeon in coastal waters is critical to development of management plans intended to minimize interactions of the most imperiled populations with damaging fisheries. We used mitochondrial DNA control region sequencing and microsatellite DNA analyses to determine the origin of 261 Atlantic Sturgeon collected off the Delaware coast during the spring months. Using individual‐based assignment (IBA) testing and mixed stock analysis, we found that specimens originated from all nine of our reference populations and the five DPSs used in the listing determination. Using IBA, we found that the Hudson River population was the largest contributor (38.3%) to our coastal collection. The James (19.9%) and Delaware (13.8%) river populations, at one time thought to be extirpated or nearly so, were the next largest contributors. The three populations combined in the South Atlantic DPS contributed 21% of specimens; the Altamaha River, the largest population in the South Atlantic DPS, only contributed a single specimen to the collection. While the origin of specimens collected on the Delaware coast was most likely within rivers of the New York Bight DPS (52.1%), specimens that originated elsewhere were also well represented. Genetic analyses provide a robust tool to identify the population origin of individual sturgeon outside of their natal estuaries and to determine the quantitative contributions of individual populations to coastal aggregations that are vulnerable to bycatch and other anthropogenic threats. Received March 17, 2014; accepted September 3, 2014

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“…It is generally accepted that the loss of genetic diversity may result in inbreeding depression leading to fitness decline often manifested by decrease of growth rate (Borrell et al, 2011 and references therein). Genetic polymorphism and kinship can be easily measured using microsatellite loci that are commonly used as markers in fish restitution and conservation programs including sturgeons (Panagiotopoulou et al, 2012;Waldman et al, 2013;O'Leary, Dunton, King, Frisk & Chapman, 2014;Popović et al, 2014 sturgeon (Acipenser oxyrinchus) breeding is to define causes of large variation in sizes of individuals from the same cohort. Atlantic sturgeon, in contrast to other sturgeon species commonly breed in aquaculture, is difficult to rear, due to specific nutritional requirements and high mortality of larvae and juveniles (Piotrowska, Szczepkowska, Kozłowski, Wundrelich & Szczepkowski, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Adamek¹,

Rzepkowska²,

Panagiotopoulou³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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The aim of this study was to establish causes of variation in body weight of Atlantic sturgeons reared for reintroduction program. Substantial disproportion of individuals released into freshwaters may influence reintroduction success. Histological analysis of white muscle was conducted due to large share of this tissue in body weight. Comparison of morphological structure of white muscle tissue showed significant statistical differences between the fast and the slow growing sturgeons. Mosaic hyperplasia (MH) was observed in white muscle tissue in both sturgeon groups, but the number of proliferating myonuclei was significantly higher in slow growing individuals. Genetic analysis applying 16 microsatellite loci revealed comparable levels of polymorphism and assigned the studied individuals into kin groups consisting of both fast and slow growing sturgeons. The study revealed that the slow growing group had higher growth potential in further stages of development, but the fast growing sturgeons based on the histological analysis of muscle fiber distribution were more advanced in muscle tissue growth. Moreover, difference in growth rate could be caused by complex polygenic inheritance of the trait.

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Stock Origins of Subadult and Adult Atlantic Sturgeon, Acipenser oxyrinchus, in a Non-natal Estuary, Long Island Sound

Cited by 29 publications

References 23 publications

Estimated Survival of Subadult and Adult Atlantic Sturgeon in Four River Basins in the Southeastern United States

Estimated Survival of Subadult and Adult Atlantic Sturgeon in Four River Basins in the Southeastern United States

Origin of Atlantic Sturgeon Collected off the Delaware Coast during Spring Months

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