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From rivers to ocean basins: The role of ocean barriers and philopatry in the genetic structuring of a cosmopolitan coastal predator.

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Title: From rivers to ocean basins: The role of ocean barriers and philopatry in the genetic structuring of a cosmopolitan coastal predator.
Authors: Devloo‐Delva, Floriaan1,2,3 (AUTHOR) floriaan.devloo‐delva@csiro.au, Burridge, Christopher P.3 (AUTHOR), Kyne, Peter M.4 (AUTHOR), Brunnschweiler, Juerg M.5 (AUTHOR), Chapman, Demian D.6 (AUTHOR), Charvet, Patricia7 (AUTHOR), Chen, Xiao8 (AUTHOR), Cliff, Geremy9 (AUTHOR), Daly, Ryan10,11 (AUTHOR), Drymon, J. Marcus12,13 (AUTHOR), Espinoza, Mario14 (AUTHOR), Fernando, Daniel15 (AUTHOR), Barcia, Laura Garcia6 (AUTHOR), Glaus, Kerstin16 (AUTHOR), González‐Garza, Blanca I.17 (AUTHOR), Grant, Michael I.18 (AUTHOR), Gunasekera, Rasanthi M.1 (AUTHOR), Hernandez, Sebastian19,20 (AUTHOR), Hyodo, Susumu21 (AUTHOR), Jabado, Rima W.18,22 (AUTHOR)
Source: Ecology & Evolution (20457758). Feb2023, Vol. 13 Issue 2, p1-22. 22p.
Subject Terms: *Watersheds, *Fishery products, *Fisheries, Reproductive isolation, Philopatry, Territorial waters
Geographic Terms: Fiji, Japan
Abstract: The Bull Shark (Carcharhinus leucas) faces varying levels of exploitation around the world due to its coastal distribution. Information regarding population connectivity is crucial to evaluate its conservation status and local fishing impacts. In this study, we sampled 922 putative Bull Sharks from 19 locations in the first global assessment of population structure of this cosmopolitan species. Using a recently developed DNA‐capture approach (DArTcap), samples were genotyped for 3400 nuclear markers. Additionally, full mitochondrial genomes of 384 Indo‐Pacific samples were sequenced. Reproductive isolation was found between and across ocean basins (eastern Pacific, western Atlantic, eastern Atlantic, Indo‐West Pacific) with distinct island populations in Japan and Fiji. Bull Sharks appear to maintain gene flow using shallow coastal waters as dispersal corridors, whereas large oceanic distances and historical land‐bridges act as barriers. Females tend to return to the same area for reproduction, making them more susceptible to local threats and an important focus for management actions. Given these behaviors, the exploitation of Bull Sharks from insular populations, such as Japan and Fiji, may instigate local decline that cannot readily be replenished by immigration, which can in turn affect ecosystem dynamics and functions. These data also supported the development of a genetic panel to ascertain the population of origin, which will be useful in monitoring the trade of fisheries products and assessing population‐level impacts of this harvest. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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PubType: Academic Journal
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  Data: From rivers to ocean basins: The role of ocean barriers and philopatry in the genetic structuring of a cosmopolitan coastal predator.
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  Data: <searchLink fieldCode="AR" term="%22Devloo‐Delva%2C+Floriaan%22">Devloo‐Delva, Floriaan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> floriaan.devloo‐delva@csiro.au</i><br /><searchLink fieldCode="AR" term="%22Burridge%2C+Christopher+P%2E%22">Burridge, Christopher P.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kyne%2C+Peter+M%2E%22">Kyne, Peter M.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brunnschweiler%2C+Juerg+M%2E%22">Brunnschweiler, Juerg M.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chapman%2C+Demian+D%2E%22">Chapman, Demian D.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Charvet%2C+Patricia%22">Charvet, Patricia</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Xiao%22">Chen, Xiao</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cliff%2C+Geremy%22">Cliff, Geremy</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Daly%2C+Ryan%22">Daly, Ryan</searchLink><relatesTo>10,11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Drymon%2C+J%2E+Marcus%22">Drymon, J. Marcus</searchLink><relatesTo>12,13</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Espinoza%2C+Mario%22">Espinoza, Mario</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fernando%2C+Daniel%22">Fernando, Daniel</searchLink><relatesTo>15</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Barcia%2C+Laura+Garcia%22">Barcia, Laura Garcia</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Glaus%2C+Kerstin%22">Glaus, Kerstin</searchLink><relatesTo>16</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22González‐Garza%2C+Blanca+I%2E%22">González‐Garza, Blanca I.</searchLink><relatesTo>17</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grant%2C+Michael+I%2E%22">Grant, Michael I.</searchLink><relatesTo>18</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gunasekera%2C+Rasanthi+M%2E%22">Gunasekera, Rasanthi M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hernandez%2C+Sebastian%22">Hernandez, Sebastian</searchLink><relatesTo>19,20</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hyodo%2C+Susumu%22">Hyodo, Susumu</searchLink><relatesTo>21</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jabado%2C+Rima+W%2E%22">Jabado, Rima W.</searchLink><relatesTo>18,22</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Feb2023, Vol. 13 Issue 2, p1-22. 22p.
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  Data: *<searchLink fieldCode="DE" term="%22Watersheds%22">Watersheds</searchLink><br />*<searchLink fieldCode="DE" term="%22Fishery+products%22">Fishery products</searchLink><br />*<searchLink fieldCode="DE" term="%22Fisheries%22">Fisheries</searchLink><br /><searchLink fieldCode="DE" term="%22Reproductive+isolation%22">Reproductive isolation</searchLink><br /><searchLink fieldCode="DE" term="%22Philopatry%22">Philopatry</searchLink><br /><searchLink fieldCode="DE" term="%22Territorial+waters%22">Territorial waters</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Fiji%22">Fiji</searchLink><br /><searchLink fieldCode="DE" term="%22Japan%22">Japan</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The Bull Shark (Carcharhinus leucas) faces varying levels of exploitation around the world due to its coastal distribution. Information regarding population connectivity is crucial to evaluate its conservation status and local fishing impacts. In this study, we sampled 922 putative Bull Sharks from 19 locations in the first global assessment of population structure of this cosmopolitan species. Using a recently developed DNA‐capture approach (DArTcap), samples were genotyped for 3400 nuclear markers. Additionally, full mitochondrial genomes of 384 Indo‐Pacific samples were sequenced. Reproductive isolation was found between and across ocean basins (eastern Pacific, western Atlantic, eastern Atlantic, Indo‐West Pacific) with distinct island populations in Japan and Fiji. Bull Sharks appear to maintain gene flow using shallow coastal waters as dispersal corridors, whereas large oceanic distances and historical land‐bridges act as barriers. Females tend to return to the same area for reproduction, making them more susceptible to local threats and an important focus for management actions. Given these behaviors, the exploitation of Bull Sharks from insular populations, such as Japan and Fiji, may instigate local decline that cannot readily be replenished by immigration, which can in turn affect ecosystem dynamics and functions. These data also supported the development of a genetic panel to ascertain the population of origin, which will be useful in monitoring the trade of fisheries products and assessing population‐level impacts of this harvest. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=162104103
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        Value: 10.1002/ece3.9837
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      – Code: eng
        Text: English
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        PageCount: 22
        StartPage: 1
    Subjects:
      – SubjectFull: Watersheds
        Type: general
      – SubjectFull: Fishery products
        Type: general
      – SubjectFull: Fisheries
        Type: general
      – SubjectFull: Reproductive isolation
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      – SubjectFull: Philopatry
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      – SubjectFull: Territorial waters
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      – SubjectFull: Fiji
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      – SubjectFull: Japan
        Type: general
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