Gulf Of Naples Research Articles

OBSERVATIONS ON THE BIOLOGY AND DEVELOPMENT OF STAUROCLADIA PORTMANNI SP. N. (ANTHOMEDUSAE, ELEUTHERIDAE)

A new species of Anthomedusae, Staurocladia portmanni sp. n. (Anthomedusae, Eleutheridae), is described. The medusa and hydroid stages were collected from the sea and cultivated in the laboratory. Location: Gulf of Naples, Italy. The medusa differs from other species of the genus Staurocladia in possessing two additional lateral cnidocyst bulbs on the main branch of the tentacles, cnidocyst bulbs around the mouth, and protuberances of the radial canals into the exumbrella. The hydroid differs from other species of the genus Staurocladia only in having less medusae buds per polyp. The medusa is found at a depth of 15 to 30 m in Posidonia beds; the hydroid at a depth of 30 m in algae material of Halimeda sp. and Udothea sp.

Preliminary notes on the ostracoda of the Gulf of Naples (Studiorum progressus) : Puri H. S., 1963. Experientia, 19 (7): 368–373

Preliminary notes on the ostracoda of the Gulf of Naples (Studiorum progressus) : Puri H. S., 1963. Experientia, 19 (7): 368–373

Preliminary notes on the Ostracoda of the Gulf of Naples

Discussione sulla nomenclatura e tassonomia correnti degli Ostracodi del golfo di Napoli e sul loro ambiente naturale. Si propongono 6 nuovi nomi.

Contributo all'ecologia dei ciliati psamrnofili del Golfo di Napoli

Summary In sand samples of different beaches of the Gulf of Naples 57 ciliate species have been found. There is no difference between sand-dwelling ciliates of the tidal zone, or deeper along the seashore, when sand granulometry is the same. Further more, it was noticed that the interstitial spaces, which are roughly proportional to the size of the sand grains, limite the distribution of microporal fauna, showing therefore qualificative selection. On the contrary, the water movement and food quantity determine the abundance of species and specimens in certain places.

Trichodina dohrni n. sp., a new ciliate species pathogenic for fish from the Gulf of Naples

A new species of the genus Trichodina, T. dohrni, is described from the gills of a Bathygobius capitoCuv. et Val. from the Gulf of Naples. The new species is characterized by the absence of the inner aboral cilia, the height of the adoral cilia which never is situated higher than the midst of the body. Differences concerning the measures of the denticles are given in a table. The pathogenicity of the parasite is of a high degree, for the gills were covered wich a greyish layer of hundreds of parasites, the respiratory tissues were swollen at many spots.

A Study of Minerals in a Sediment Core from the Gulf of Naples

A Study of Minerals in a Sediment Core from the Gulf of Naples

MARINE BACTERIA AND THEIR RÔLE IN THE CYCLE OF LIFE IN THE SEA

A considerable number of investigations concerning the number of bacteria and their distribution in sea water have been made. Among the earliest of these was that of Russell (1892, a and b, 1893), who conducted systematic studies of the distribution of bacteria in the Gulf of Naples. He found bacteria in small numbers to be uniformly distributed in the water at distances of 3 to 15 kilometers from shore and at depths ranging from 50 to 1,500 meters. It was found by others (Cassedebat, 1894; de Giaxa, 1899) that while the water of harbors and bays might contain large numbers of bacteria, this number, as determined on the ordinary solid bacteriological media, became very small at comparatively short distances from shore. Bassenge and Fischer (1894, a and b), who investigated the water oven a wide area of the Atlantic Ocean, found bacteria in larger numbers than have any other investigators. The largest numbers, however, were found near land or in the presence of lange quantities of floating sea weed. Lloyd (1930), in her investigations in the Clyde Sea area, followed the distri bution of bacteria at five stations during the course of a year. In the rather shallow waters of this region, the surface water was found to be richest in bacteria, the number decreasing with depth but usually in creasing slightly again at the bottom. The numbers in the surface water fluctuated considerably but no definite seasonal trend could be detected; below the surface the numbers were remarkably constant throughout the year. Numerous, usually somewhat fragmentary in vestigations, ranging from polar to tropical waters, have almost in variably shown small numbers of bacteria to be present in the sea water. Among these may be cited those of Frankland and Burgess (1897), Levin (1899), Otto and Neumann (1904), Gazert (1912), Berkeley (1919) and Lipman (1929). The results of recent investigations such

A New Pycnogonid from the Bahamas

Previous articleNext article FreeA New Pycnogonid from the BahamasLeon J. ColeLeon J. Cole Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by The American Naturalist Volume 40, Number 471Mar., 1906 Published for The American Society of Naturalists Article DOIhttps://doi.org/10.1086/278614 Views: 36Total views on this site Citations: 2Citations are reported from Crossref PDF download Crossref reports the following articles citing this article:Romain Sabroux, Alexandre Hassanin, Laure Corbari Four times more species of sea spiders (Arthropoda: Pycnogonida) in Martinique Island (Lesser Antilles), Marine Biodiversity 49, no.33 (May 2019): 1519–1535.https://doi.org/10.1007/s12526-019-00957-9WILLIAM G. FRY, JAN H. STOCK A pycnogonid bibliography, Zoological Journal of the Linnean Society 63, no.1-21-2 (Jun 2008): 197–238.https://doi.org/10.1111/j.1096-3642.1978.tb02098.x

Le conchiglie Pompeiane

THIS remarkable and well written memoir was published before the recent celebration at Pompeii of the eighteenth centenary of its destruction by a volcanic eruption of Vesuvius. It is the work of an excellent naturalist, who lives at Resina, close to the site of the ruined city, and who is especially conversant with the shells of the Mediterranean. The point of view to which he directs our attention is very different from that which has been taken by the geologist, antiquary, artist, or architect. He treats of the shells found in the ruins, and which had served for food, or been used by the Pompeians for ornament and other purposes. Indeed we know from Athenasus and other ancient authors that mollusca were then relished quite as much as they are at present by the inhabitants of Italy. I have been unable to discover in the loose and incorrect twaddle of the younger Pliny, who lost his life in the eruption, any mention of shells having been collected by his countrymen for the study of natural history. It is a pursuit or amusement of comparatively modern times. Dr. Tiberi gives a list of all the shells which he has noticed as Pompeian, belonging to no less than 44 species, with particulars of their relative abundance at Pompeii, as well as of their distribution and economy. Some were of eatable kinds, as the common oyster and mussel, Pecten Jacobaeus, Venus chione, Tapes decussatus, and several species of Helix. Others adorned fountains, as Haliotis tuberculata, Murex trunculus, and M. brandaris. The oriental pearl-shell (Meleagrina margaritifera) was represented only by a single valve. But the ladies of Pompeii seem to have attached considerable value to the Cypraea or Cowry, as amulets or charms to prevent sterility; and among these shells were some of species from the Red Sea and Persian Gulf. A single specimen of another exotic shell (Conus textilis) must have been kept for its great beauty as an object of curiosity. All the shells used in the ornamentation of fountains, five in the city and one in the suburbs, are of species which still are common in the Gulf of Naples; these shells are separately distinguished and named. Le conchiglie Pompeiane. Descritte dal Dott. Nicola Tiberi. 4to, 12 pp. (Napoli, 1879.)