10.5061/DRYAD.DR7SQV9XJ
DiBattista, Joseph
0000-0002-5696-7574
Australian Museum
Gajdzik, Laura
0000-0001-6781-9625
Curtin University
DeCarlo, Thomas
Hawaii Pacific University
Koziol, Adam
University of Denmark
Mousavi-Derazmahalleh, Mahsa
Curtin University
Coghlan, Megan
Curtin University
Power, Matthew
Curtin University
Bunce, Michael
Curtin University
Fairclough, David
Department of Primary Industries and Regional Development
Travers, Michael
0000-0002-3072-1699
Department of Primary Industries and Regional Development
Moore, Glenn
Western Australian Museum
Climate-assisted persistence of tropical fish vagrants in temperate marine
ecosystems
Dryad
dataset
2021
FOS: Biological sciences
Australian Research Council
https://ror.org/05mmh0f86
LP160100839
Australian Research Council
https://ror.org/05mmh0f86
LP160101508
2021-09-03T00:00:00Z
2021-09-03T00:00:00Z
en
7348349257 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Rising temperatures and extreme climatic events are propelling tropical
species into temperate marine ecosystems, but not all species can persist.
Here, we used the heatwave-driven expatriation of tropical black
rabbitfish (Siganus fuscescens) to the temperate environments of Western
Australia to assess the ecological and evolutionary mechanisms that may
entail their persistence. Population genomic assays for this rabbitfish
indicated little genetic differentiation between tropical residents and
vagrants to temperate environments due to high migration rates, which were
likely enhanced by the marine heatwave. DNA metabarcoding revealed a
diverse diet for this species based on phytoplankton and algae, as well as
an ability to feed on regional resources, including kelps. Irrespective of
future climate scenarios, these macroalgae-consuming vagrants may
self-recruit in temperate environments and further expand their geographic
range by 2100. This expansion may compromise the health of the kelp
forests that form Australia’s Great Southern Reef. Overall, our study
demonstrates that projected favourable climatic conditions, continued
large-scale genetic connectivity between populations, and diet versatility
are key for tropical range-shifting fish to establish in temperate
ecosystems.
See included README file and Gajdzik et al. 2021 published in
Communications Biology.
We have provided two types of data files, associated metadata, and
supporting documentation: 1) metabarcoding data for diet analysis and 2)
SNP data for population genetic analysis. For #1, metabarcoding data for
diet analysis, we here provide: (i) raw Illumina MiSeq read 1 file in
.fastq format (file name "MSRun289_LIG23_S1_L001_R1_001.fastq"),
(ii) raw Illumina MiSeq read 2 file in .fastq format (file name
"MSRun289_LIG23_S1_L001_R2_001.fastq"), (iii) demultiplexed
metabarcoding reads from stomach samples of each rabbitfish indivual in
fasta format (zip folder "Demultiplexed_samples_fasta_format"),
(iv) metadata for each stomach sample (file name
"Metadata_dietary_metabarcoding_rabbitfish"), and (v)
oligonucleotide and index sequences used for demultiplexing in fasta
format (zip folder "Oligo_sequence_indices_fasta_format"). For
#2, SNP data for population genetic analysis, we here provide: (i) raw SNP
data as provided by https://www.diversityarrays.com/ (file name
"DArTseq_data_rabbitfish_Gajdzik_et_al") and (ii) metadata for
each Siganus fuscescens individual caught from 13 sites across seven
regions in Western Australia (file name
"Metadata_DArTseq_Gajdzik_et_al").