共查询到20条相似文献，搜索用时 31 毫秒
1.
Fourteen proteins and 12 morphometric characters were examined in specimens of blue maomao and sweep to resolve the question: Are they one or two species? Specimens were fixed for the same alleles at 12 protein loci and shared alleles at 4 polymorphic loci. At a further polymorphic locus they differed in allele frequency and at three loci they did not share alleles. A genetic distance of 0.209 was found between blue maomao and sweep suggesting that they diverged about 1 million years ago. One meristic character showed a difference between specimens. On the basis of the electrophoretic data and on gill raker counts it is considered that blue maomao and sweep are two separate species. In view of reported differences from Australian specimens the allocation of scientific names at least to sweep remains uncertain. 相似文献
2.
3.
J.B. Wilson 《Estuarine, Coastal and Shelf Science》1983,17(5):592-593
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
《Deep Sea Research Part I: Oceanographic Research Papers》2006,53(3):578-580
Vertically integrated heat content from the Weddell Sea along 69 °S in vicinity of the Greenwich meridian from the 1977–2001 period is presented. This demonstrates that the east-west variability in the area is lower than the natural variability. The sensitivity on the choice of lower boundary for the heat content integral is discussed in relation to upwelling from the deeper water masses. The cooling around Maud Rise during the 1990's on the order of 20 W/m2 remains significant, and may be explained by increased surface heat fluxes during winter months with lower than normal sea ice concentration. 相似文献
14.
15.
Richard W. Sternberg 《Marine Geology》1974,16(4):239-240
16.
Brenninkmeijer K. A. M. Ginzburg A. S. Elansky N. F. Mokhov I. I. 《Izvestiya Atmospheric and Oceanic Physics》2021,57(1):1-17
Izvestiya, Atmospheric and Oceanic Physics - This is the introductory article for the special issue of Izvestia, Atmospheric and Oceanic Physics dedicated to the 2019 Lomonosov Gold Medal of the... 相似文献
17.
18.
19.