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The food composition of the shrimp Crangon allmanni from the Helgoland Trench (North Sea) and Onega Bay (White Sea) is described. The main food items (>60%) include detritus, representatives of about 30 benthic species, dominated by polychaetes, malacostracans, ophiuroids, bivalves and ophistobranchs (Cylichna, Diaphana spp.) as well as plant remains. In the North Sea, C. allmanni is closer to an attacking predator than to a predator-gatherer like in the White Sea. This difference may be caused by diverging habitat- and community characteristics and dissimilar size composition of the two studied shrimp populations. Moreover, C. allmanni changes its foraging mode (grazing, gathering, attacking) during ontogenesis. A comparison of the obtained food composition data of C. allmanni with literature data on six other species of the same genus showed all to be benthos feeders, predator-gatherers with elements of detrito- and necrophagia, using grains of sand as millstones in their gastric mill.

This study investigated possible parasitic effects on growth, reproduction and external sexual characters induced by a bopyrid isopod Argeia pugettensis Dana, 1853, which parasitizes the branchial chamber of the sand shrimp Crangon hakodatei Rathbun, 1902 in South Korea. Total infestation rate was 5.7%. The sizes of infected female and male hosts were similar compared to those of uninfected hosts. A. pugettensis showed size-specific selection for hosts. The relationship between host and parasite length was significantly positive. Several effects of parasitization were observed on C. hakodatei parasitized by A. pugettensis. In female hosts, parasitic effects were observed in growth (increased growth), internal organ development (immature gonads) and external sexual characters (no breeding dress). In male hosts, parasitic effects were observed on growth (increased growth) and development of external sexual characters (smaller appendix masculina).

Four species of Crangonidae and Glyphocrangonidae were collected during a survey of the deep-water fauna off the west coast of the southern part of the Baja California Peninsula, Mexico. A total of 168 specimens were collected, with a clear dominance of Glyphocrangon spinulosa Faxon, 1893 (85% of collected specimens). A new northernmost distribution limit is set for Paracrangon areolata Faxon, 1893, Sclerocrangon atrox Faxon, 1893 and Glyphocrangon alata Faxon, 1893, while first records are made available for G. spinulosa off the west coast of the Baja California Peninsula.

[The European brown shrimp, Crangon crangon (L., 1758) has colonized the intertidal zones of Iceland and spread rapidly to many coastal areas. The first confirmed record dates from 2003, and by 2006 the species had colonized the west and south coasts, while not being recorded on the north and east coasts. Densities as high as 6700 animals 100 m−2 were measured. The absence of the brown shrimp from Iceland until recently is interesting in the light of its occurrence in Arctic waters, especially off northern Norway and Russia. It seems most likely that it was brought to Iceland by ballast water. The present records substantially extend the known geographical range of this species. La crevette grise europeenne Crangon crangon (L., 1758) a colonise les zones intertidales d'Islande et s'est etendue rapidement a de nombreuses zones cotieres. Les premieres donnees fiables datent de 2003; Depuis 2006, l'espece a colonise les cotes ouest et sud alors qu'elle est encore absente sur les cotes nord et est. Des densites de 6700 animaux 100 m−2 ont ete mesurees. L'absence de la crevette grise en Irlande jusqu'en des temps recents est interessante a la lumiere de sa presence dans les eaux arctiques, en particulier au large des cotes nord de la Norvege et de la Russie. Il est probable qu'elle a ete apportee en Islande par les eaux de ballast. Les donnees presentes etendent substantiellement la zone de distribution geographique connue de cette espece., The European brown shrimp, Crangon crangon (L., 1758) has colonized the intertidal zones of Iceland and spread rapidly to many coastal areas. The first confirmed record dates from 2003, and by 2006 the species had colonized the west and south coasts, while not being recorded on the north and east coasts. Densities as high as 6700 animals 100 m−2 were measured. The absence of the brown shrimp from Iceland until recently is interesting in the light of its occurrence in Arctic waters, especially off northern Norway and Russia. It seems most likely that it was brought to Iceland by ballast water. The present records substantially extend the known geographical range of this species. La crevette grise europeenne Crangon crangon (L., 1758) a colonise les zones intertidales d'Islande et s'est etendue rapidement a de nombreuses zones cotieres. Les premieres donnees fiables datent de 2003; Depuis 2006, l'espece a colonise les cotes ouest et sud alors qu'elle est encore absente sur les cotes nord et est. Des densites de 6700 animaux 100 m−2 ont ete mesurees. L'absence de la crevette grise en Irlande jusqu'en des temps recents est interessante a la lumiere de sa presence dans les eaux arctiques, en particulier au large des cotes nord de la Norvege et de la Russie. Il est probable qu'elle a ete apportee en Islande par les eaux de ballast. Les donnees presentes etendent substantiellement la zone de distribution geographique connue de cette espece.]

12 pages, 1 figure, 3 tables, [EN] A total of 57 bottom trawl hauls, using an OTSB-14, were carried out at depths between 862 and 2265 m in the Catalan Sea in 1988 and 1989. 28 species were identified including 6 Dendrobranchiata, 1 Stenopodidean, 7 Caridea, 2 Thalassinidea, 2 Palinura, 3 Anomura, and 7 Brachyura. Munidopsis tridentata, Chaceon mediterraneus and a new species of Axiidae were the most important faunistic records in this survey. Changes in the decapod crustacean fauna in the Catalan Sea were reflected by an impoverishment of species with increasing depth. The most pronounced qualitative changes in the fauna were recorded between 1000 and 1200 m and at around 2000 m. The bathyal decapod fauna in the western Mediterranean is quite similar to that in the Atlantic. The most important families and genera common to both bathyal zones are the Crangonidae, Galatheidae and Geryonidae, and the genera Nematocarcinus and Stereomastis. In contrast, the tropical species Aristeus antennatus, Acanthephyra eximia, and Plesionika acanthonotus, that are of little importance in the North Atlantic, are widely distributed and frequent in the deep western Mediterranean. © 1993, BRILL. All rights reserved, [FR] 57 chalutages benthiques, avec un chalut OTSB-14, ont ete effectues en mer Catalane en 1988-1989, entre 862 et 2265 metres de profondeur. 28 especes ont ete identifiees, a savoir: 6 Dendrobranchiata, 1 Stenopodide, 7 Caridea, 2 Thalassinidea, 2 Palinura, 3 Anomura et 7 Brachyura. Munidopsis tridentata, Chaceon mediterraneus et un nouvelle espece d'Axiidae sont les apports faunistiques les plus importants fournis par ces prospections. Les changements dans la faune des crustaces decapodes en mer Catalane ont ete marques par un appauvrissement des especes avec la profondeur. Les changements qualitatifs les plus prononces dans la faune ont ete enregistres entre 1000 et 1200 m et vers 2000 m. La faune bathyale de decapodes de Mediterranee occidentale et celle de l'Atlantique sont tout a fait similaires. Les families et genres les plus importants dans les deux zones bathyales sont les Crangonidae, les Galatheidae et les Geryonidae, et les genres Nematocarcinus et Stereomastis. Par contre, les especes tropicales Aristeus antennatus, Acanthephyra eximia et Plesionika acanthonotus, qui sont de peu d'importance dans l'Atlantique Nord, sont largement distributes et frequentes dans les eaux profondes de la Mediterranee occidentale

Deep-sea trawling in the Venezuela Basin of the Caribbean Sea during October through early December 1981 by USNS "Bartlett" collected 4 species in 3 families and genera of abyssobenthic caridean shrimp; namely, Pontophilus talismani Crosnier & Forest, 1973 (Crangonidae), Glyphocrangon atlantica Chace, 1939 (Glyphocrangonidae), Nematocarcinus acanthitelsonis Pequegnat, 1970 and Nematocarcinus ensifer (Smith, 1882) (Nematocarcinidae). Pontophilus talismani is a rare west African species previously known from 2 ovigerous females collected between Dakar and the Cape Verde Islands. Glyphocrangon atlantica was equally rare, heretofore recorded from 3 specimens, 2 from the Caribbean Sea south of Cuba or northeast of Honduras, and a third from the eastern Atlantic off France. Nematocarcinus acanthitelsonis was previously known from 4 specimens, consisting of 2 in the type series from the southwestern Gulf of Mexico, and 2 more from south of the Canary Islands in the eastern Atlantic. Nematocarcinus ensifer, on the other hand, is a common deep-sea shrimp widely distributed on the American Atlantic coast, the Azores, the African and European coasts, and in the eastern and mid-Pacific Ocean from Central America to Hawaii, and perhaps to New Guinea, Japan and the Indian Ocean if synonymization by several authors is correct. All 4 species are considered to be bathyal or abyssal forms, but their widespread distribution, as determined in part from this study, suggests that zoogeographical relationships may be more general for Decapoda inhabiting deep-sea basins than was previously suspected.

[Die Zoea-Stadien von im Mai im Laboratorium erbruteten Philocheras bispinosus neglectus Larven werden beschrieben. Sie unterscheiden sich von P.b. bispinosus Larven, gleichen aber in etwa den Larven von P. trispinosus. Im Clyde-Busen scheint sich P.b. neglectus im Spat-Fruhling fortzupflanzen, P.b. bispinosus dagegen im Herbst. Eine vollstandige Larvenserie, die diese Unterarten miteinander verbindet, wurde wahrend des Sommers gefunden., Die Zoea-Stadien von im Mai im Laboratorium erbruteten Philocheras bispinosus neglectus Larven werden beschrieben. Sie unterscheiden sich von P.b. bispinosus Larven, gleichen aber in etwa den Larven von P. trispinosus. Im Clyde-Busen scheint sich P.b. neglectus im Spat-Fruhling fortzupflanzen, P.b. bispinosus dagegen im Herbst. Eine vollstandige Larvenserie, die diese Unterarten miteinander verbindet, wurde wahrend des Sommers gefunden.]