Ecology

Habitat

Depth range based on 2770 specimens in 7 taxa.
Water temperature and chemistry ranges based on 2713 samples.

Environmental ranges
  Depth range (m): -1 - 25878
  Temperature range (°C): -1.714 - 16.614
  Nitrate (umol/L): 1.069 - 44.456
  Salinity (PPS): 33.643 - 38.654
  Oxygen (ml/l): 0.341 - 8.084
  Phosphate (umol/l): 0.130 - 3.199
  Silicate (umol/l): 1.170 - 126.886

Graphical representation

Depth range (m): -1 - 25878

Temperature range (°C): -1.714 - 16.614

Nitrate (umol/L): 1.069 - 44.456

Salinity (PPS): 33.643 - 38.654

Oxygen (ml/l): 0.341 - 8.084

Phosphate (umol/l): 0.130 - 3.199

Silicate (umol/l): 1.170 - 126.886
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 103
Specimens with Sequences: 89
Specimens with Barcodes: 88
Species: 5
Species With Barcodes: 5
Public Records: 36
Public Species: 3
Public BINs: 3
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Electrona

Electrona is a genus of lanternfishes in the family Myctophidae.

Species[edit]

There are currently five recognized species in this genus:[2][3]

Physical description[edit]

Electrona lanternfishes are small, discoid fishes.

Distribution and ecology[edit]

While Electrona risso can be found throughout the world, widespread in the Indian, Pacific, Atlantic Oceans, and Mediterranean, the other four species are limited to the southern hemisphere, mostly limited to the Southern Ocean. Their dispersion is dependent on the balance between current-mediated larval dispersal and adult active homing behavior.[4] Besides E. rissoi is E. paucirastra the only species that is found north of the Southern Ocean.E. antarctica mainly inhabits the Antarctic deep and therefore warmer waters.[5] E. carlsbergii inhabits the water south of the Antarctica convergence to the Antarctic coast, and between the Antarctic and sub-Antarctic convergences.[5] Larval forms of many deep-water species are found to inhabit inshore waters.[6] Migration patterns vary between different species, size groups, life history stages, sex, latitude, time and season.[6]

Diet[edit]

These fish exhibit a daily migration patter. During the day they concentrate between 400–1000 m.[6] During the night, they migrate close to the surface between 5–100 m. These diel vertical migrations are primarily performed because zooplankton, their main food, is concentrated in the upper layers, while they need to go deep during the day in order to avoid predators.[6]

Reproduction[edit]

Electrona have a low fecundity. Females produce eggs the size of 0.7-0.9 mm.[6] Spawning of some species may occur any time during the year. In the Arabian Sea, fish spawn during all seasons but significantly increases during monsoon transition periods (March–June and September–November).[6] The larva exhibit diversity with their shape not similar to the adult and the larvae have a highly stalked eye and trailing intestine.

References[edit]

  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology 364: p.560. Retrieved 2008-01-08. 
  2. ^ "Animal Diversity Web". Electrona, 2012. Web 3 November 2013. <http://animaldiversity.ummz.umich.edu/accounts/Electrona/classification/>
  3. ^ Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Electrona in FishBase. April 2012 version.
  4. ^ "ScienceDirect". High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: The myctophid Electrona antarctica, 2012. Web 3 November 2013. <http://www.sciencedirect.com/science/article/pii/S0967064511001378>
  5. ^ a b , Giovanni, T.M, Wing-Keong Ng, Douglas Redford Tocher. "Fish Oil Replacement and Alternative Lipid Sources in Aquaculture Feeds">"Alternative Marine Resources". Fish Oil Replacement and Alternative Lipid Sources in Aquaculture Feeds, 2011.
  6. ^ a b c d e f A.R. Nambiar."Marine Ecosystem".Marine Ecosystem-A Quaterly Newsletter Vol. 5, 2006. Web 3 November 2013. <http://www.dgukenvis.nic.in/newsletters/Newsletter14.pdf>
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!