Population genomic dynamics of mesopelagic lanternfishes Diaphus dumerilii, Lepidophanes guentheri, and Ceratoscopelus warmingii (Family: Myctophidae) in the Gulf of Mexico
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields



Publication Date Range:


Document Data


Document Type:






Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page


Population genomic dynamics of mesopelagic lanternfishes Diaphus dumerilii, Lepidophanes guentheri, and Ceratoscopelus warmingii (Family: Myctophidae) in the Gulf of Mexico

Filetype[PDF-688.35 KB]


  • Journal Title:
    Deep Sea Research Part I: Oceanographic Research Papers
  • Description:
    Assessing the impacts of the Deepwater Horizon oil spill (DWHOS) on deep-sea fish assemblages of the Gulf of Mexico (GOM) has been hindered by an absence of baseline (pre-spill) data concerning the population genetic dynamics of these fishes. The lanternfishes (Myctophidae) are a speciose, yet understudied, taxonomic group, that comprise a significant portion of the global deep-sea biomass, making them integral members of meso- and bathy-pelagic food webs. Herein, we used a genomic approach (double digest restriction site associated DNA sequencing) to investigate the temporal genetic dynamics of three species of lanternfishes within the northern GOM in the region of the oil spill: Ceratoscopelus warmingii (N = 65, SNP = 1804), Diaphus dumerilii (N = 42, SNP = 2577), and Lepidophanes guentheri (N = 44, SNP = 3462). Fishes were sampled in 2011, and then again in 2015, and 2016, and genotyped using single nucleotide polymorphisms (SNP) markers. An additional 22 C. warmingii samples collected in 2014 from the western North Atlantic were used to assess genetic connectivity between these two regions. Overall, all three species were characterized by low levels of genetic diversity and high inbreeding coefficients, and within two of the three species (C. warmingii and L. guentheri), little (if any) evidence of population genetic structure was found within northern GOM waters. Conversely, significant intra-GOM genetic population structure was found for D. dumerilii, highlighting the need for a more robust population genetic survey of these fishes within the GOM to understand how populations of these fishes may respond to future environmental perturbations. In addition, significant genetic population structure was also found between sub-populations of C. warmingii from the northern GOM and western North Atlantic; with evidence of a mixture of two genetic populations co-occurring within the western North Atlantic. Given the potential for future environmental perturbations caused by expanding oil and gas extraction and climate change on GOM mesopelagic communities, rigorous population genetic assessments are required to understand the population dynamics of fishes and to safeguard the genetic diversity and resilience of this functionally important group of deep-sea fishes.
  • Source:
    Deep–Sea Research I 185 (2022) 103786
  • Format:
  • Document Type:
  • Place as Subject:
  • Rights Information:
    Accepted Manuscript
  • Compliance:
  • Main Document Checksum:
  • File Type:

Supporting Files

More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.26