排序方式： 共有3条查询结果，搜索用时 15 毫秒
1
1.
Lesley L. Rhodes Joann M. Burkholder Howard B. Glasgow Parke A. Rublee Coy Allen Janet E. Adamson 《新西兰海洋与淡水研究杂志》2013,47(3):621-630
Pfiesteria shumwayae Steidinger et Burkholder is now known to be present in New Zealand and occurs in estuaries around the country. The presence of Pfiesteria was initially determined by a polymerase chain reaction (PCR)‐based detection assay, using oligonucleotide primers targeted at ribosomal DNA extracted from estuarine water and sediments. Presence was confirmed by isolation from fresh sediments in the presence offish (Oreochromis mossambicus), followed by identification by scanning electron microscopy. The New Zealand isolates of P. shumwayae were ichthyotoxic in bioassays, but there is no historic evidence offish kills in New Zealand associated with the dinoflagellate. 相似文献
2.
Allan J. Baker 《新西兰海洋与淡水研究杂志》2013,47(1):211-221
Criteria based on external characters are presented for aging and sexing the three New Zealand species of oystercatcher, Haematopus ostralegus finschi Martens, 1897, H. unicolor Forster, 1844, and H. chathamensis Hartert, 1927. Four classes are discerned: juveniles have brown dorsal plumage, a brown iris and grey legs; second‐year birds have an orange‐red iris and pale pink legs; sub‐adults have a dull red iris and pink legs; adults have a scarlet iris and bright coral pink legs. The three species can be sexed by discriminant analysis of the sexually dimorphic characters bill length (x 1), bill length:bill depth (x 2) and bill length:bill width (x 3). Linear functions and discriminating values for predicting sex are : H. ostralegus finschi 0.46x 1+3.15x 2+2.94x 3, 77.41; H. unicolor 0.12x1+6.52x2+2.85x3 , 58.05; and H. chathamemis ‐0.93x 1+1.50x 2+7.48x 3, ‐20.86. Similarly, the sexes of immature H. ostralegus finschi can be predicted : juveniles 0.73x1+ 5.76x 2 + 3.10 x3 116.57; second‐year birds 0.57x 1+5.12x 2+ 0.98x 8, 84.84; and sub‐adults 0.55x 1+1.88x 2+ 1.08x 3, 65.90.’ 相似文献
3.
1