scholarly journals Visual Pigments of Deep-Sea Fish

Nature ◽  
1956 ◽  
Vol 178 (4541) ◽  
pp. 1059-1059 ◽  
Author(s):  
E. J. DENTON ◽  
F. J. WARREN
Keyword(s):  
Deep Sea ◽  
Visual Pigments ◽  
Sea Fish

Single and multiple visual pigments in deep-sea fishes

1992 ◽  
Vol 72 (1) ◽  
pp. 113-130 ◽  
Author(s):  
J. C. Partridge ◽  
S. N. Archer ◽  
J. Vanoostrum
Keyword(s):  
Deep Sea ◽  
Visual Pigment ◽  
Short Wave ◽  
Visual Pigments ◽  
Outer Segments ◽  
Long Wave ◽  
Retinal Rods ◽  
Pigment Extract ◽  
Sea Fish

The visual pigments in the retinal rods of 17 species of deep-sea fish were examined by microspectrophotometry or visual pigment extract spectrophotometry. In 15 species single visual pigments were found with peak sensitivities between 470 and 490 nm, typical of deep-sea fishes. However, in one species, Stylephorons cordatus, two visual pigments were found with λ values at 470 and 481 nm. In another species, Scopelarchus analis, three visual pigments were found with mean λ values of 444, 479 and 505 nm. The short-wave pigment of this species was found both in main and accessory retinae. It was present both in single rods and in outer segments which had the most long-wave sensitive pigment in their distal parts. It is argued that these two-pigment rods are in the process of changing their visual pigment from a ‘juvenile’ VP505 pigment to an ‘adult’ VP444 pigment. The VP479 was found only as a single pigment in rods in the accessory retina.

On the visual pigments of deep-sea fish

1997 ◽  
Vol 50 (1) ◽  
pp. 68-85 ◽  
Author(s):  
R. H. Douglas ◽  
J. C. Partridge
Keyword(s):  
Deep Sea ◽  
Visual Pigments ◽  
Sea Fish

The eyes of deep-sea fish I: Lens pigmentation, tapeta and visual pigments

1998 ◽  
Vol 17 (4) ◽  
pp. 597-636 ◽  
Author(s):  
R.H Douglas ◽  
J.C Partridge ◽  
N.J Marshall
Keyword(s):  
Deep Sea ◽  
Visual Pigments ◽  
Sea Fish

scholarly journals The molecular basis for spectral tuning of rod visual pigments in deep-sea fish

2001 ◽  
Vol 204 (19) ◽  
pp. 3333-3344 ◽  
Author(s):  
David M. Hunt ◽  
Kanwaljit S. Dulai ◽  
Julian C. Partridge ◽  
Phillippa Cottrill ◽  
James K. Bowmaker
Keyword(s):  
Phylogenetic Analysis ◽  
Fish Species ◽  
Deep Sea ◽  
Molecular Basis ◽  
Visual Pigments ◽  
The Other ◽  
Opsin Gene ◽  
Gene Sequences ◽  
Blue Region ◽  
Sea Fish

SUMMARY Most species of deep-sea fish possess of a rod-only retina with a pigment that is generally shortwave shifted in λmax towards the blue region of the spectrum. In addition, the λmax values of different species tend to cluster at particular points in the spectrum. In this study, the rod opsin gene sequences from 28 deep-sea fish species drawn from seven different Orders are compared. The λmax values of the rod pigments vary from approximately 520 nm to <470 nm, with the majority lying between 490 nm and 477 nm. The 520 nm pigment in two species of dragon fish is associated with a Phe261Tyr substitution, whereas the shortwave shifts of the pigments in the other 26 species are accountable by substitutions at a further eight sites (83, 122, 124, 132, 208, 292, 299 and 300). Clustering of λmax values does not, however, involve a common subset of these substitutions in the different species. A phylogenetic analysis predicts that the pigment in the ancestral species would have had a λmax of approximately 480 nm. A total of 27 changes is required to generate the pattern of substitutions seen in the different species, with many sites undergoing multiple changes.

Deep-sea fish assemblages (300-2100 m) in the eastern Pacific off northern Mexico

2018 ◽  
Vol 592 ◽  
pp. 225-242 ◽  
Author(s):  
E Cruz-Acevedo ◽  
N Tolimieri ◽  
H Aguirre-Villaseñor
Keyword(s):  
Deep Sea ◽  
Fish Assemblages ◽  
Eastern Pacific ◽  
Northern Mexico ◽  
Sea Fish

scholarly journals Contributions to Management Strategies in the NE Atlantic Regarding the Life History and Population Structure of a Key Deep-Sea Fish (Mora moro)

Biology ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 522
Author(s):  
Régis Santos ◽  
Wendell Medeiros-Leal ◽  
Osman Crespo ◽  
Ana Novoa-Pabon ◽  
Mário Pinho
Keyword(s):  
Population Structure ◽  
Life History ◽  
Deep Sea ◽  
Management Strategies ◽  
Size Composition ◽  
Large Size ◽  
The Common ◽  
Fishing Impacts ◽  
Sea Fish

With the commercial fishery expansion to deeper waters, some vulnerable deep-sea species have been increasingly captured. To reduce the fishing impacts on these species, exploitation and management must be based on detailed and precise information about their biology. The common mora Mora moro has become the main deep-sea species caught by longliners in the Northeast Atlantic at depths between 600 and 1200 m. In the Azores, landings have more than doubled from the early 2000s to recent years. Despite its growing importance, its life history and population structure are poorly understood, and the current stock status has not been assessed. To better determine its distribution, biology, and long-term changes in abundance and size composition, this study analyzed a fishery-dependent and survey time series from the Azores. M. moro was found on mud and rock bottoms at depths below 300 m. A larger–deeper trend was observed, and females were larger and more abundant than males. The reproductive season took place from August to February. Abundance indices and mean sizes in the catch were marked by changes in fishing fleet operational behavior. M. moro is considered vulnerable to overfishing because it exhibits a long life span, a large size, slow growth, and a low natural mortality.

Preliminary observations on abundance and distribution of fish fauna in a canyon of the Bay of Biscay (ICES Division 8c)

2021 ◽  
pp. 1-10
Author(s):  
G. Diez ◽  
L. Arregi ◽  
M. Basterretxea ◽  
E. Cuende ◽  
I. Oyarzabal
Keyword(s):  
Deep Sea ◽  
Basque Country ◽  
Fish Fauna ◽  
Fishing Effort ◽  
Fishing Gear ◽  
Clear Trend ◽  
Depth Ranges ◽  
Abundance And Distribution ◽  
Sea Fish ◽  
Distribution Of Fish

Abstract The changes in abundance and biodiversity of deep-sea fish fauna are described based on an annual deep-water longline survey with data collected during the period 2015–2019 in the Basque Country continental Slope (ICES Division 8c). The sampling scheme included hauls in four 400 m strata, from 650–2250 m deep. The DST sensors installed in the main line have allowed us to set an accurate soak time for each haul, and they were used to calculate fishing effort and CPUE by haul. The catchability of the fishing gear indicated that 15% of the total hooks deployed in the five-year period were able to fish, and that the bottom longline was very effective in fishing a wide number of different species in all depth ranges. The fishing gear caught 14 different species of sharks (13 deepwater and one pelagic), two chimaeras and nine teleosts. The abundance and biomass registered on the hooks attached to the bottom were between three and four times higher than in the floating sections, and the highest CPUE and biomass were recorded between 1051–1450 m, from 2015 to 2017, and in the 1451–1850 m strata, but they do not show any clear trend throughout the five years of the series.

The effects of submarine canyons and the oxygen minimum zone on deep-sea fish assemblages off Hawai'i

2012 ◽  
Vol 64 ◽  
pp. 54-70 ◽  
Author(s):  
Fabio C. De Leo ◽  
Jeffrey C. Drazen ◽  
Eric W. Vetter ◽  
Ashley A. Rowden ◽  
Craig R. Smith
Keyword(s):  
Deep Sea ◽  
Fish Assemblages ◽  
Oxygen Minimum Zone ◽  
Submarine Canyons ◽  
Minimum Zone ◽  
Sea Fish ◽  
Oxygen Minimum
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