Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Per-Otto Johansen"'
Autor:
Per-Otto Johansen, Wim Vader
Publikováno v:
Fauna Norvegica, Vol 39 (2019)
Examination of Paradulichia-material collected from the Barents Sea during the Mareano cruises indicated that there are clear morphological differences between Paradulichia typica Boeck, 1871 from the Hardangerfjord, W. Norway and Paradulichia spinif
Externí odkaz:
https://doaj.org/article/c6ee9ea00c2c4e259bb8be74c86ed435
Autor:
Per-Otto Johansen, Wim Vader
Publikováno v:
European Journal of Taxonomy, Vol 0, Iss 127 (2015)
New species of Lepechinella, L. norvegica sp. nov. and L. victoriae sp. nov., from the North East Atlantic are described together with the new, closely related genus and species Lepesubchela christinae gen. et sp. nov. Lepechinella arctica Schellenbe
Externí odkaz:
https://doaj.org/article/bf057512668e48c98323beef38ccced7
Autor:
Wim Vader, Per-Otto Johansen
Publikováno v:
Marine Biology Research. 16:521-531
Species of Nicippe are recorded almost worldwide and four species have been previously recorded. Descriptions of taxonomic characters of Nicippe isaki sp. nov. from Svalbard are given and compared ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1690fd4812c051e799c00a3706788dc6
https://doi.org/10.1080/17451000.2020.1828593
https://doi.org/10.1080/17451000.2020.1828593
Autor:
Per-Otto Johansen, Thomas G. Dahlgren, Einar Bye-Ingebrigtsen, Jon Thomassen Hestetun, Adrian G. Glover, R. Henrik Nilsson
Publikováno v:
Marine Biodiversity. 50
Significant effort is spent on monitoring of benthic ecosystems through government funding or indirectly as a cost of business, and metabarcoding of environmental DNA samples has been suggested as a possible complement or alternative to current morph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12238fe54a4f295d22e4cb4b0863fa93
https://doi.org/10.1007/s12526-020-01093-5
https://doi.org/10.1007/s12526-020-01093-5
Autor:
Wim Vader, Per-Otto Johansen
Publikováno v:
Journal of Natural History. 52:1133-1145
A new species of Halicoides from the northern North Sea is described. Species of Halicoides are recorded worldwide and three species have previously been recorded from the North Atlantic. There are...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9b346d5958165d2215a44e2b86b76ce
https://doi.org/10.1080/00222933.2018.1453097
https://doi.org/10.1080/00222933.2018.1453097
Autor:
Wim Vader, Per-Otto Johansen
Publikováno v:
Fauna Norvegica, Vol 39 (2019)
Examination of Paradulichia-material collected from the Barents Sea during the Mareano cruisesindicated that there are clear morphological differences between Paradulichia typica Boeck, 1871from the Hardangerfjord, W. Norway and Paradulichia spinifer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75b0bb173c89a9efccc9535426ba7f66
https://hdl.handle.net/10037/17462
https://hdl.handle.net/10037/17462
Publikováno v:
Estuarine, Coastal and Shelf Science
Previous studies have shown decline in dissolved oxygen of the ocean basins. A hypothesis for this development is that ocean warming through increased stratification has caused reduced ventilation of the interior ocean. Here we provide evidence that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1a483bd5c84583d4365c19ffd6ae0d1
http://hdl.handle.net/11250/2636609
http://hdl.handle.net/11250/2636609
Autor:
Hans Tore Rapp, Per-Otto Johansen, Dominique Durand, Thomas G. Dahlgren, Einar Bye-Ingebrigtsen, Stian Ervik Kvalø, Michael Greenacre, Marte Haave, Trond Einar Isaksen
Publikováno v:
Marine pollution bulletin. 128
Quantitative analyses of soft bottom invertebrate fauna from four Norwegian sill fjords show increased macrofaunal abundance, species richness, and a considerably changed benthic deep water macrofaunal composition in the inner parts of the fjord syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::494a6336aecc137f81375e43c3494f4c
https://pubmed.ncbi.nlm.nih.gov/29571400
https://pubmed.ncbi.nlm.nih.gov/29571400
Autor:
Per-Otto Johansen
Publikováno v:
Ophelia. 53:27-35
Natatolana borealis (Lilljeborg) was collected at 85 m depth in Osterfjord, Western Norway from January to December 1995 in traps baited with 300 g pieces offish tissue. The catches varied from 62 to 237 individuals after 24 hours deployment. The cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b26ce5cbb2342aeca7f93d3082ef810
https://doi.org/10.1080/00785326.2000.10409433
https://doi.org/10.1080/00785326.2000.10409433
Autor:
Per-Otto Johansen
Publikováno v:
Journal of the Marine Biological Association of the United Kingdom. 80:623-632
Postmarsupial development and growth of Natatolana borealis were studied from Skogsvåg and Raknesvåg on the western coast of Norway. Growth was determined from size and instar stage distributions. Growth was also examined in laboratory kept isopods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b6c6a053b5e475a99b056ca129344a2
https://doi.org/10.1017/s0025315400002447
https://doi.org/10.1017/s0025315400002447