02666nas a2200289   4500008004500000020001400045245009700059210006900156300001400225490000700239520188000246653001702126653001702143653001202160653001802172653001002190653001502200653001202215653000802227653001202235653002102247653001302268100002302281700001702304700002102321856003402342       2007                        Engldsh    a0022-293300aDiversity and taxonomy of intertidal Bryozoa (Cheilostomata) at Akkeshi Bay, Hokkaido, Japan0 aDiversity and taxonomy of intertidal Bryozoa Cheilostomata at Ak  a1047-11610 v413 aWe found 39 cheilostome species among more than 7000 specimens collected at 10 intertidal sites in rocky habitats along the shore of Akkeshi Bay, eastern Hokkaido Island, Japan. These species are herein described in detail and illustrated by scanning electron microscopy. Nine species (23% of total) are described as new (Electra asiatica, Callopora sarae, Conopeum nakanosum, Cauloramphus cryptoarmatus, Cauloramphus multispinosus, Cauloramphus niger, Stomachetosella decorata, Microporella luellae, and Celleporina minima), and 21 species (54%) are reported for the first time from Japan. Species richness ranged from eight to 29 species per study site. A TWINSPAN analysis showed the species fell into nine groups defined by the local pattern of distribution. A cluster analysis of study sites based on similarity of species composition showed three faunistic groups distributed geographically: in Akkeshi Lake, along the eastern-central shore of the bay, and at the mouth of the bay. Species richness in estuarine Akkeshi Lake was low, with a species composition very different from the outer bay. Most cheilostomes were found on rock and shell substrata, but uncommonly occurred on concrete walls, algae, hydroids, tubes of polychaetes, other bryozoans, and anthropogenic debris. Of the 39 species found, 33 (85%) contained embryos during the collecting periods, 2-7 June and 3-6 July 2004. The biogeographical composition of intertidal cheilostomes at Akkeshi Bay included species with Arctic-Boreal (28%), Boreal (59%), and Boreal-Subtropical (13%) distributions. The overall species richness of intertidal cheilostomes was two-thirds that documented intertidally in a comparable study at Kodiak, Alaska, a locality 15 degrees higher in latitude. We attribute the lower richness at Akkeshi to differences in the nearshore marine environment between the two localities.10abiodiversity10abiogeography10abryozoa10aCheilostomata10agenus10aintertidal10aislands10anew10aspecies10aspecies richness10ataxonomy1 aGrischenko, A., V.1 aDick, M., H.1 aMawatari, S., F.  u<Go to ISI>://00024796750000500507nas a2200097   4500008004100000245012700041210006900168490000700237100002100244856014400265       2007                        eng d00aEinhornia, a new genus for electrids formerly classified as the Electra crustulenta species group (Bryozoa, cheilostomata)0 aEinhornia a new genus for electrids formerly classified as the E0 v691 aNikulina, E., A.  uhttps://britishbryozoans.myspecies.info/content/einhornia-new-genus-electrids-formerly-classified-electra-crustulenta-species-group-bryozoa02347nas a2200229   4500008004100000020001400041245014400055210006900199300000900268490000800277520156800285653001201853653001501865653001201880653001601892653002001908653001501928100002801943700002301971700002301994856010002017       2007                        eng d  a0022-098100aZooid size and growth rate of the bryozoan Cryptosula pallasiana Moll in relation to temperature, in culture and in its natural environment0 aZooid size and growth rate of the bryozoan Cryptosula pallasiana  a1-120 v3533 aThe size of cheilostome bryozoan zooids has been widely discussed for its potential in inferring palaeotemperatures, based on correlations between zooid size and temperature. Studies in both the natural environment and under experimental laboratory conditions have shown that an increase in temperature significantly decreases zooid size in a range of bryozoan taxa. In order to test the effect of temperature on zooid size, the cheilostome bryozoan Cryptosula pallasiana was for the first time successfully cultured under laboratory conditions. C. pallasiana was grown at 14 °C and 18 °C using Rhodomonas sp. as a food organism. Zooid size, tentacle number and growth rate were measured over a period of 26 days. For comparison, zooids from colonies of C. pallasiana collected from the natural environment were measured in winter and summer months. Results showed that colonies grown in laboratory culture had significantly longer and wider zooids at 14 °C than at 18 °C. The specific growth rate of C. pallasiana doubled from 14 °C to 18 °C. Comparison of tentacle number in culture showed a significantly higher value at lower temperatures. This may be related to differing food availability, longer polypide life spans, or a shift of energy use at colder temperatures. In nature the zooids were significantly longer in colonies sampled in July than in January, a clear difference from laboratory results. The utility of cheilostome Bryozoa as indicators of environmental change and their potential for studies of paleotemperature are highlighted.10abryozoa10aCryptosula10aCulture10aGrowth rate10aTentacle number10aZooid size1 aAmui-Vedel, Ann-Margret1 aHayward, Peter, J.1 aPorter, Joanne, S.  uhttp://www.sciencedirect.com/science/article/B6T8F-4R0CR5J-1/2/9a4b8174afc04bcd5b483dd2277852a701494nas a2200157   4500008004100000020001400041245013300055210006900188300001200257490000700269520097100276100002101247700001401268700001601282856003801298       2007                        eng d  a1055-790300aCryptic speciation and paraphyly in the cosmopolitan bryozoan Electra pilosa - Impact of the Tethys closing on species evolution0 aCryptic speciation and paraphyly in the cosmopolitan bryozoan El  a765-7760 v453 aCosmopolitan nature of the marine bryozoan Electra pilosa was studied to clarify geographic structure and to Outline evolution and phylogeography of the species. Several local populations from the Northeast Atlantic (North Sea and Baltic Sea), Arctic (Barents Sea and White Sea) and Indo-West Pacific (New Zealand) were compared. In addition, we examined the closely related species L posidoniae from the Mediterranean Sea. Phylogenetic analysis based on both 16S and 18S rDNA indicate that the Indo-West Pacific E pilosa is a sister species to the Atlantic-Mediterranean clade, with the latter including the species E posidoniae and the Atlantic population of E pilosa. The topology of the phylogenetic tree leads us to conclude that E pilosa is a paraphyletic species group relative to E posidoniae, and a molecular dating of its divergence is consistent to geologic events associated with the closure of the Tethys Sea. (c) 2007 Elsevier Inc. All rights reserved.1 aNikulina, E., A.1 aHanel, R.1 aSchafer, P.  u<Go to ISI>://WOS:000251943900001