Topic
Stomias
About: Stomias is a research topic. Over the lifetime, 17 publications have been published within this topic receiving 257 citations.
Papers
Journal Article•
TL;DR: Species composition, abundance, and vertical distribution of the stomiid fish assemblage were investigated in the eastern Gulf of Mexico, and abundance results suggest that stomiids are the dominant mesopelagic upper-trophic level predatory level predatory fish in these ecosystems.
Abstract: Species composition, abundance, and vertical distribution of the stomiid fish assemblage were investigated in the eastern Gulf of Mexico, a low-latitude, oligotrophic oceanic ecosystem. Seventy-two described species, representing l8 genera, and one undescribed species were identified from 1155 trawl samples. With an additional lO species reported elsewhere, the stomiid species number now known equals 83, making the Stomiidae the most diverse fish family in the Gulf of Mexico. The assemblage was dominated by three species, Photostomias guernei, Chauliodus sloani and Stomias ctffinis. These species, as well as four other common species, exhibited an asynchronous diel vertical migration pattern (450-900 m during day; 20-300, 550-900 m at night). The percentage of the populations of rhe rhree dominant species migrating daily ranged from 50-7OVo. Two other patterns occurred in less abundant species: synchronous migration (4OO-700 m during the day, 0-200 m at night); and, possible migration from the bathypelagial (>lOO0 m during day; 50-3OO m ar night). Minimum abundance and biomass estimates for the entire assemblage were 1.86 X 105 individuals and 35.3 kg DW'km 2 in the upper IOOO m. Stomiids comprised approximately lOVo of the micronekton standing stock in the eastern Gulf. Extrapolating eastern Gulf data to the world warm-water mesopelagial, abundance results suggest that stomiids are the dominant mesopelagic upper-trophic level predatory llshes, and as such may serve as key trophic mediators in the transfer of energy in these ecosystems.
63 citations
TL;DR: Adult mesopelagic fishes are described from acoustic and trawl surveys over the full-depth of 500 m at 169 stations on a longitudinal transect crossing the Humboldt Current at 50–200 nautical miles off Peru during austral spring (October–November) of 2001, 2002 and 2003.
Abstract: The horizontal and vertical distributions of adult mesopelagic fishes are described from acoustic and trawl surveys over the full-depth of 500 m at 169 stations on a longitudinal transect crossing the Humboldt Current (03°45′S, 81°76′W and 18°23′S, 71°13′W) at 50–200 nautical miles off Peru during austral spring (October–November) of 2001, 2002 and 2003. A total of 2,952 kg of fishes was collected, which included 13 families, 23 genera and 28 species. The mesopelagic community is dominated by the families Phosichthyidae (Vinciguerria lucetia), Myctophidae (Diogenichthys laternatus and Lampanyctus idostigma) and Bathylagidae (Leuroglossus urotranus), accounting for 60.4, 12.8 and 3.7%, respectively, of the total catch. Based on horizontal distribution patterns these species were categorized into three groups, i.e. northern-central upwelling front group (L. urotranus, Nemichthys fronto and Scopelarchoides nicholsi), Southern upwelling front group (Hygophum reinhardti, Myctophum nitidulum, Paralepis sp and Scopeloberyx sp.) and pan-Humboldt Current group (V. lucetia, D. laternatus, L.
(Nannobrachium)
idostigma, L. omostigma, M. aurolaternatum, Triphoturus oculeus, Bathylagus
(Melanolagus) berycoides, Leuroglossus stilbius, Argyropelecus affinis, Sternoptyx obscura, Melamphaes sp., Stomias sp. and Scopelosaurus sp.). Nighttime vertical distribution was characterized by a single abundance peak in the upper 50 m. Daytime patterns showed three peaks of abundance: an upper peak, in the upper 100 m, a midwater peak between 200 and 400 m, coinciding with an oxygen minimum zone, and a deeper peak between 400 and 500 m. V. lucetia was dominant in the upper and midwater peaks while myctophids, other planctivorous and piscivorous fishes were distributed in the midwater. Acoustic back-scattered energy (S
a) was ubiquitous in the region. Maximum S
a was mainly located between 11° and 18°S during day and night. V. lucetia is a significant component of the sound-scattering layers in the Humboldt Current Region off Peru.
55 citations
TL;DR: Oral and caudal extremities of the gut harbour photomicrobes, which appears to be normal hosts of bathypelagic fish.
22 citations
Journal Article•
21 citations
Journal Article•
20 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2012 | 1 |
| 2007 | 1 |
| 2006 | 3 |
| 2001 | 1 |
| 1998 | 1 |