Patterns of Phenotypic Variation in the Mouth Size of Lanternfishes (Teleostei: Myctophiformes)

  title={Patterns of Phenotypic Variation in the Mouth Size of Lanternfishes (Teleostei: Myctophiformes)},
  author={Rene P. Martin and Matthew P. Davis},
  pages={795 - 807}
Lanternfishes (Myctophiformes, ~260 species) are among the most abundant and species-rich groups of fishes endemic to the deep sea, and they play a major role in the oceanic ecosystem by transferring energy from shallower to deeper oceanic levels. Little is currently known regarding how lanternfishes have achieved such high species richness in the deep sea, and the majority of previous studies that have investigated diversification in this group have focused on bioluminescence. In this study… 

The evolution of specialized dentition in the deep‐sea lanternfishes (Myctophiformes)

The results indicate that heterodonty evolved at least six separate times on the oral jaws of lanternfishes, occurring as variable tooth morphologies in combination with villiform teeth.

Marine Habitat Transitions and Body-Shape Evolution in Lizardfishes and Their Allies (Aulopiformes)

The findings suggest that aulopiform body plans have broadly diversified in deep-sea pelagic and benthic habitats while remaining comparatively conservative in inshore-benthic environments.

Niche partitioning and morphospace in early stages of two sympatric Diogenichthys species (Myctophidae).

Interspecific differences between diets and skull shapes suggest that both sympatric lanternfish species may have undergone morphological or niche divergence to avoid competition, such as feeding at different hours or depth stratification.

Environmental drivers of upper mesopelagic fish assemblages in the Benguela Upwelling System

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It is hypothesised that lanternfishes with a deeper distribution and/or a reduction of bioluminescent emissions have smaller eyes and that ecological factors rather than phylogenetic relationships will drive the evolution of the visual system.

On structure of species in pelagic fish: the results of populational-genetic analysis of four species of lanternfish (Myctophidae) from the southern Atlantic

  • N. Gordeeva
  • Environmental Science
    Journal of Ichthyology
  • 2011
High estimations of interpopulational differences indicate that homogenizing influence of large-scale circulations in some species may be limited, and evidence of a potential differentiating role of localcirculations in zones of underwater rises is obtained.

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The results show that the vertical distribution of larvae and adults is partly conditioned by their respective feeding habits, with larvae feeding on small zooplankton in the upper layer and adults preferring to consume larger taxa that perform nycthemeral migrations.

Evolution of the light organ system in ponyfishes (Teleostei: Leiognathidae)

Both internal and external sexual dimorphism in the ponyfish LOs were recovered as most likely to have evolved in the common ancestor of Leiognathidae, and likelihood‐based correlation analyses indicate that the evolution ofinternal and external dimorphisms in males is statistically correlated.

Is sexual selection driving diversification of the bioluminescent ponyfishes (Teleostei: Leiognathidae)?

The results suggest that if sexual selection is occurring in ponyfish evolution, it is likely acting only as a genetic isolating mechanism that has allowed ponyfishes to continuously diversify over time, with no overall impact on increases in diversification rate or morphological disparity.

Intra- and interspecific variability in prey size and niche breadth of myctophiform fish larvae

Size of ingested prey increased through larval development for all species examined, but at different rates, and variability appears to be related to interspecific morphological differences, and may constitute a strategy to optimize the utilization of trophic resources in the oligotrophic open-ocean habitat.

Feeding ecology of the glacier lanternfish Benthosema glaciale (Actinopterygii, Myctophidae) in the Flemish Cap (North Atlantic Ocean)

The feeding dynamics of the glacier lanternfish Benthosema glaciale were studied during the summer of 2010 in the Flemish Cap, showing increasing prey size and prey diversity with increasing predator size.

Dietary shift and feeding intensity of Stenobrachius leucopsarus in the Bering Sea

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This study attempts to resolve major myctophiform phylogenies from both mitogenomic sequences and corroborating evidence in the form of unique mitochondrial gene order rearrangements to provide a likely scenario for the phylogenetic history of Myctophidae.