Deep-Water Stomatopod and Decapod Crustaceans Collected off Central America by the R/V “Miguel Oliver”

Macrocypridina lives at depths of 800 m, where residual daylight is very weak. It has a pair of mobile apposition compound eyes with large lenses, wide rhabdoms and high acceptance angles, all of which contribute to a calculated sensitivity comparable with the superposition eyes of deep-water decapod crustaceans. The axes of the 27 ommatidia in each eye are not uniformly distributed in space, with a modest acute zone in the anteroventral region. Here the interommatidial angles are about 6°, compared with 20° at the rear of the eye. The eyes make two kinds of spontaneous movements: large slow rotations of up to 50° around a transverse axis, anda superimposed 2 Hz tremor with an amplitude of 5°.

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Chronobiology of Deep-Water Decapod Crustaceans on Continental Margins

Advances in Marine Biology ◽

10.1016/b978-0-12-381015-1.00003-4 ◽

2010 ◽

pp. 155-225 ◽

Cited By ~ 54

Author(s):

Jacopo Aguzzi ◽

Joan B. Company

Keyword(s):

Deep Water ◽

Continental Margins ◽

Decapod Crustaceans

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Spectral sensitivities of five marine decapod crustaceans and a review of spectral sensitivity variation in relation to habitat

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315402006203 ◽

2002 ◽

Vol 82 (5) ◽

pp. 835-842 ◽

Cited By ~ 30

Author(s):

Magnus L. Johnson ◽

Edward Gaten ◽

Peter M.J. Shelton

Keyword(s):

Spectral Sensitivity ◽

Deep Water ◽

High Sensitivity ◽

Decapod Crustaceans ◽

Nephrops Norvegicus ◽

General Picture ◽

Near Ultraviolet ◽

Coastal Species ◽

Deep Water Species ◽

Water Species

The spectral sensitivities of five species of decapod crustaceans have been determined by electroretinogram measurements. Their spectral sensitivities conform to the general picture for marine crustacea with high sensitivity to blue-green wavelengths and some showing sensitivity to violet/near ultraviolet. Two deep-water species (Paromola cuvieri and Chaceon (Geryon) affinis) have spectral sensitivity maxima below 500 nm, whereas the three coastal species examined (Crangonallmani, Pandalus montagui and Nephrops norvegicus) are maximally sensitive to light of longer wavelengths (510 to 525 nm).

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Decapod Crustacea of the Central Paratethyan Ottnangian Stage (middle Burdigalian): implications for systematics and biogeography

Geologica Carpathica ◽

10.1515/geoca-2015-0021 ◽

2015 ◽

Vol 66 (3) ◽

pp. 217-233 ◽

Cited By ~ 3

Author(s):

Matúš Hyžný ◽

Mathias Harzhauser ◽

Wolfgang Danninger

Keyword(s):

Shallow Water ◽

Deep Water ◽

Fossil Record ◽

Outer Shelf ◽

Decapod Crustaceans ◽

Lower Miocene ◽

Western Tethys ◽

Decapod Crustacea ◽

Portunid Crab ◽

First Time

AbstractDecapod crustaceans from the Ottnangian (middle Burdigalian, Lower Miocene) of the Western and Central Paratethys remain poorly known. In this study, we review and re-describe mud shrimps (Jaxea kuemeli), ghost shrimps (Gourretiasp.,Calliax michelottii) and brachyuran crabs of the families Leucosiidae, Polybiidae and Portunidae. A dorsal carapace of the genusCalliaxis reported for the first time in the fossil record. Re-examination of the type material ofRandallia strouhali(Leucosiidae) andGeryon ottnangensis(Geryonidae) resulted in a transfer of these species intoPalaeomyra(Leucosiidae) andLiocarcinus(Polybiidae), respectively.Achelous vindobonensis, originally described as a chela of a portunid crab, probably belongs to a member of Polybiidae and is provisionally treated asLiocarcinussp. Only two species,J. kuemeliandC. michelottii, are also known from the Karpatian, the succeeding Paratethyan stage. In most cases, the decapod assemblages of the Ottnangian consist of rather shallow-water taxa whereas the assemblages of the Karpatian consist of deep-water taxa from the middle and outer shelf. The Central Paratethyan assemblages show similarities in genus composition to the Proto-Mediterranean and recent Indo-Pacific regions.Gourretiasp. represents the earliest occurrence of the respective genus in the fossil record. The Oligocene–Early Miocene appearance ofPalaeomyraandLiocarcinusin the circum-Mediterranean implies that sources of present-day diversity hotspots in the Indo-Pacific trace to the Western Tethys (as for other decapod genera), although coeval decapod assemblages in the Indo-Pacific remain poorly known.

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