DISTRIBUTION AND FRESH-WATER RESIDENCE OF STOKELL SMELT, STOKELLIA-ANISODON (STOKELL), IN THE SOUTH ISLAND, NEW-ZEALAND

被引：5

作者：

BONNETT, ML

机构：

[1] Freshwater Fisheries Centre, Ministry of Agriculture and Fisheries, Christchurch, P. O. Box 8324, Riccarton

来源：

NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH | 1992年 / 26卷 / 02期

关键词：

STOKELL SMELT; STOKELLIA-ANISODON; COMMON SMELT; RETROPINNA-RETROPINNA; SPAWNING; DISTRIBUTION; NEW-ZEALAND;

D O I：

10.1080/00288330.1992.9516516

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Stokell's smelt are restricted to some livers on the east coast of the South Island, New Zealand, mainly in the Canterbury region. Migrations of Stokell's smelt into fresh water occur mostly from October to March. Analysis of samples taken from the Rakaia River at intervals during this period suggests that there are successive migrations of maturing fish, which continue to develop sexually during freshwater residence. The duration of residence could not be determined, but the presence of females containing relatively small eggs implies that some smelt remain in fresh water for weeks, or even months. Spawning occurs throughout the season, as ripe and spent fish were found in all the samples examined.

引用

页码：213 / 218

页数：6

共 17 条

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