Genetic population structure of four hydrothermal vent shrimp species (Alvinocarididae) in the Okinawa Trough, Northwest Pacific

Takuya Yahagi, Hiromi Watanabe, Jun Ichiro Ishibashi, Shigeaki Kojima

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Understanding the formative factors of connectivity among deep-sea chemosynthetic communities may clarify the biogeographic mechanisms that facilitate the establishment and development of vent/seep fauna. This study identified interspecific differences in the geographical distribution and genetic population structure of 4 alvinocaridid shrimp species inhabiting hydrothermal vents in the Okinawa Trough, Northwest Pacific. Shinkaicaris leurokolos populations were widely distributed at 580 to 1651 m depth, with partial nucleotide sequences of the mitochondrial COI gene revealing extremely high genetic diversity (haplotype diversity: 0.98 to 1.00). In contrast, local populations of Alvinocaris dissimilis and A. longirostris, both of which have narrower bathymetric distributions, were characterised by low haplotype diversity (0.29 to 0.52). In the Okinawa Trough, Alvinocaris sp. only occurs at the Irabu Knoll, but this species also inhabits the Suiyo Seamount on the volcanic front of the Izu-Bonin Arc (Northwest Pacific). This unde-scribed species had relatively high haplotype diversity (0.70 to 0.82), with no genetic differentiation between the 2 sites. Certain factors may allow this species to occur at both sites (e.g. a chemical environment derived from similar substratum), despite geological differences in hydrothermal circulation (i.e. a back-arc basin versus an arc volcanic front, respectively). The findings of this study indicate that (1) the wide geographical and bathymetrical distributional ranges of the vent shrimp species cause high genetic diversity associated with stable population connectivity and (2) certain environmental features (e.g. depth and substratum) and life-history traits (e.g. feeding habitat and larval characteristics) represent important formative factors in the connectivity of alvinocaridids in the Northwest Pacific.

Original languageEnglish
Pages (from-to)159-169
Number of pages11
JournalMarine Ecology Progress Series
Volume529
DOIs
Publication statusPublished - Jun 8 2015

Fingerprint

Ryukyu Archipelago
hydrothermal vent
population structure
haplotypes
trough
shrimp
genetic variation
connectivity
geographical distribution
hydrothermal circulation
life history
fauna
basins
nucleotide sequences
seamount
life history trait
genetic differentiation
island arc
deep sea
habitats

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

Cite this

Genetic population structure of four hydrothermal vent shrimp species (Alvinocarididae) in the Okinawa Trough, Northwest Pacific. / Yahagi, Takuya; Watanabe, Hiromi; Ishibashi, Jun Ichiro; Kojima, Shigeaki.

In: Marine Ecology Progress Series, Vol. 529, 08.06.2015, p. 159-169.

Research output: Contribution to journalArticle

@article{07621af5babc4d0b8d8b69889ee53bd2,
title = "Genetic population structure of four hydrothermal vent shrimp species (Alvinocarididae) in the Okinawa Trough, Northwest Pacific",
abstract = "Understanding the formative factors of connectivity among deep-sea chemosynthetic communities may clarify the biogeographic mechanisms that facilitate the establishment and development of vent/seep fauna. This study identified interspecific differences in the geographical distribution and genetic population structure of 4 alvinocaridid shrimp species inhabiting hydrothermal vents in the Okinawa Trough, Northwest Pacific. Shinkaicaris leurokolos populations were widely distributed at 580 to 1651 m depth, with partial nucleotide sequences of the mitochondrial COI gene revealing extremely high genetic diversity (haplotype diversity: 0.98 to 1.00). In contrast, local populations of Alvinocaris dissimilis and A. longirostris, both of which have narrower bathymetric distributions, were characterised by low haplotype diversity (0.29 to 0.52). In the Okinawa Trough, Alvinocaris sp. only occurs at the Irabu Knoll, but this species also inhabits the Suiyo Seamount on the volcanic front of the Izu-Bonin Arc (Northwest Pacific). This unde-scribed species had relatively high haplotype diversity (0.70 to 0.82), with no genetic differentiation between the 2 sites. Certain factors may allow this species to occur at both sites (e.g. a chemical environment derived from similar substratum), despite geological differences in hydrothermal circulation (i.e. a back-arc basin versus an arc volcanic front, respectively). The findings of this study indicate that (1) the wide geographical and bathymetrical distributional ranges of the vent shrimp species cause high genetic diversity associated with stable population connectivity and (2) certain environmental features (e.g. depth and substratum) and life-history traits (e.g. feeding habitat and larval characteristics) represent important formative factors in the connectivity of alvinocaridids in the Northwest Pacific.",
author = "Takuya Yahagi and Hiromi Watanabe and Ishibashi, {Jun Ichiro} and Shigeaki Kojima",
year = "2015",
month = "6",
day = "8",
doi = "10.3354/meps11267",
language = "English",
volume = "529",
pages = "159--169",
journal = "Marine Ecology - Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

TY - JOUR

T1 - Genetic population structure of four hydrothermal vent shrimp species (Alvinocarididae) in the Okinawa Trough, Northwest Pacific

AU - Yahagi, Takuya

AU - Watanabe, Hiromi

AU - Ishibashi, Jun Ichiro

AU - Kojima, Shigeaki

PY - 2015/6/8

Y1 - 2015/6/8

N2 - Understanding the formative factors of connectivity among deep-sea chemosynthetic communities may clarify the biogeographic mechanisms that facilitate the establishment and development of vent/seep fauna. This study identified interspecific differences in the geographical distribution and genetic population structure of 4 alvinocaridid shrimp species inhabiting hydrothermal vents in the Okinawa Trough, Northwest Pacific. Shinkaicaris leurokolos populations were widely distributed at 580 to 1651 m depth, with partial nucleotide sequences of the mitochondrial COI gene revealing extremely high genetic diversity (haplotype diversity: 0.98 to 1.00). In contrast, local populations of Alvinocaris dissimilis and A. longirostris, both of which have narrower bathymetric distributions, were characterised by low haplotype diversity (0.29 to 0.52). In the Okinawa Trough, Alvinocaris sp. only occurs at the Irabu Knoll, but this species also inhabits the Suiyo Seamount on the volcanic front of the Izu-Bonin Arc (Northwest Pacific). This unde-scribed species had relatively high haplotype diversity (0.70 to 0.82), with no genetic differentiation between the 2 sites. Certain factors may allow this species to occur at both sites (e.g. a chemical environment derived from similar substratum), despite geological differences in hydrothermal circulation (i.e. a back-arc basin versus an arc volcanic front, respectively). The findings of this study indicate that (1) the wide geographical and bathymetrical distributional ranges of the vent shrimp species cause high genetic diversity associated with stable population connectivity and (2) certain environmental features (e.g. depth and substratum) and life-history traits (e.g. feeding habitat and larval characteristics) represent important formative factors in the connectivity of alvinocaridids in the Northwest Pacific.

AB - Understanding the formative factors of connectivity among deep-sea chemosynthetic communities may clarify the biogeographic mechanisms that facilitate the establishment and development of vent/seep fauna. This study identified interspecific differences in the geographical distribution and genetic population structure of 4 alvinocaridid shrimp species inhabiting hydrothermal vents in the Okinawa Trough, Northwest Pacific. Shinkaicaris leurokolos populations were widely distributed at 580 to 1651 m depth, with partial nucleotide sequences of the mitochondrial COI gene revealing extremely high genetic diversity (haplotype diversity: 0.98 to 1.00). In contrast, local populations of Alvinocaris dissimilis and A. longirostris, both of which have narrower bathymetric distributions, were characterised by low haplotype diversity (0.29 to 0.52). In the Okinawa Trough, Alvinocaris sp. only occurs at the Irabu Knoll, but this species also inhabits the Suiyo Seamount on the volcanic front of the Izu-Bonin Arc (Northwest Pacific). This unde-scribed species had relatively high haplotype diversity (0.70 to 0.82), with no genetic differentiation between the 2 sites. Certain factors may allow this species to occur at both sites (e.g. a chemical environment derived from similar substratum), despite geological differences in hydrothermal circulation (i.e. a back-arc basin versus an arc volcanic front, respectively). The findings of this study indicate that (1) the wide geographical and bathymetrical distributional ranges of the vent shrimp species cause high genetic diversity associated with stable population connectivity and (2) certain environmental features (e.g. depth and substratum) and life-history traits (e.g. feeding habitat and larval characteristics) represent important formative factors in the connectivity of alvinocaridids in the Northwest Pacific.

UR - http://www.scopus.com/inward/record.url?scp=84930794805&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930794805&partnerID=8YFLogxK

U2 - 10.3354/meps11267

DO - 10.3354/meps11267

M3 - Article

AN - SCOPUS:84930794805

VL - 529

SP - 159

EP - 169

JO - Marine Ecology - Progress Series

JF - Marine Ecology - Progress Series

SN - 0171-8630

ER -