Topic
Beryx
About: Beryx is a research topic. Over the lifetime, 89 publications have been published within this topic receiving 1106 citations.
Papers published on a yearly basis
Papers
1 May 2001
TL;DR: In this article, the authors collected data from one trawl and three longline exploratory surveys to the Mid-Atlantic Ridge and covered the depths between 400 and 2000m, but mainly between 500 and 1200m.
Abstract: The data presented were collected from one trawl and three longline exploratory surveys to the Mid-Atlantic Ridge and covered the depths between 400 and 2000 m, but mainly between 500 and 1200 m. Information on 56 species from 27 families is presented with regard to temperature, geographical distribution and depth. For some species, new information on geographical distribution is presented. In the northern part of the Ridge (north of 52°N) sub-Arctic species such as Sebastes spp., tusk (Brosme brosme) and Greenland halibut (Reinhardtius hippoglossoides) are dominant. In the southern part (south of 48°N), sub-tropical species such as golden eye perch (Beryx splendens) and cardinal fish (Epigonus telescopus) are the dominant species. The area between 48 and 52°N is a region of faunal change where some species seem to be at either the northern or southern limit of their distribution.
67 citations
TL;DR: The feeding habits of Beryx splendens and B. decadactylus were determined from stomach contents obtained on a monthly basis during commercial fishing off the Canary Islands in 1996–1997.
56 citations
TL;DR: Morphological and molecular analyses of the myxozoan from splendid alfonso identified it as Kudoa megacapsula n.
Abstract: Postmortem myoliquefaction associated with multivalvulid myxozoans was found in fillets of red barracuda (Sphyraena pinguis) and splendid alfonso (Beryx splendens), which were imported to Japan from China and South Africa, respectively. Morphological examinations of the myxozoans from the somatic muscle of red barracuda revealed that spores (30.3–44.7 μm in maximum thickness) had 4 distinct winglike valves, in which 1 extremely large (12.7 × 5.8 μm), 2 small, and 1 vestigial polar capsule were present. The small subunit ribosomal DNA sequence analysis showed that the myxozoan cluster within a clade was composed of Kudoa thyrsites, Kudoa minithyrsites, and Kudoa lateolabracis, all having stellate spores with 1 polar capsule larger than the other 3. On the basis of these characteristics, we describe this parasite as Kudoa megacapsula n. sp. Morphological and molecular analyses of the myxozoan from splendid alfonso identified it as K. thyrsites, which has been described from many marine fishes. To our knowle...
54 citations
TL;DR: In several teleost fishes, guanine type ocular tapeta lucida were studied by conventional light and fluorescence microscopy and a possible explanation offered for the two types of tapetal organization in teleosts is offered.
Abstract: In several teleost fishes, guanine type ocular tapeta lucida were studied by conventional light and fluorescence microscopy. Retina1 tapeta lucida were found in the eyes of Chlorophthalmus albatrossis, Chlorophthalmus nigromarginatus, Chlorophthalmus acutifrons, Beryx splendens, Beryx decadactylus, Polymixia japonica and Polymixia bemdti. Choroidal tapeta exist in the eyes of Neoscopelus microchir, Diaphus coeruleus, Diaph us sagarniensis, Epigon us atherinoides, Priacanthus macracanthus, Priacanthus harnrur, Priacanthus boops and Pn'stigenys niphonia. Spectrophotometric and paper-chromatographic evidence reveals the tapetal material to be mainly guanine. Grouped receptors in the retinas of Chlorophthalmus and Polymixia and argentea in the eyes of Priacanthus are described and a classification of the tapeta lucida in teleosts is given. The relationship between retinal and choroidal tapeta is discussed and a possible explanation offered for the two types of tapetal organization in teleosts. Apparently, the two types are related to the ecology and behavior of the species concerned.
51 citations
TL;DR: The reproductive biology of the alfonsino Beryx splendens was studied by histological examinations, gonadosomatic index and macroscopic scales of maturation of a large sample of gonads, finding that the larvae and juveniles could be carried from the reproductive zone to the vegetative zone by currents in an oceanic eddy system.
Abstract: The reproductive biology of the alfonsino Beryx splendens was studied by histological examinations, gonadosomatic index and macroscopic scales of maturation of a large sample of gonads. Alfonsino is a gonochoric species. The size-frequency distribution of the sex ratio was bimodal and considered to be due to size dimorphism. In New Caledonia, the breeding period of this species occurs during the southern summer, with a peak in December to January. The spawning stage is attained at a minimum fork length of 28 cm for females and 33 cm for males. The size at which 50% of the population attain sexual maturity (FL50) is 33.2 cm for females and 34.5 cm for males. Maximum potential fecundity is estimated to lie between 270 000 to 675 000 eggs for fish between 34 and 40 cm in fork length. It was possible to differentiate vegetative zones, in which juvenile alfonsino grow until they reach maturity, from reproductive zones (fishing grounds) which are inhabited by mature individuals. The larvae and juveniles could be carried from the reproductive zone to the vegetative zone by currents in an oceanic eddy system.
50 citations
Related Topics (5)
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| Year | Papers |
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| 2021 | 1 |
| 2019 | 1 |
| 2018 | 1 |
| 2017 | 2 |
| 2016 | 4 |
| 2015 | 3 |