Ontogenetic behavior and migration of Dabry's sturgeon, Acipenser dabryanus, from the Yangtze River, with notes on body color and development rate
文献类型: 外文期刊
作者: Kynard, B 1 ; Zhuang, P 2 ; Zhang, T 2 ; Zhang, LZ 2 ;
作者机构: 1.US Geol Survey, Leetown Sci Ctr, SO Conte Anadromous Fish Res Ctr, Turners Falls, MA 01376 USA
2.US Geol Survey, Leetown Sci Ctr, SO Conte Anadromous Fish Res Ctr, Turners Falls, MA 01376 USA; Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Jinzhou 434000, Hubei, Peoples R China
关键词: Habitat;Dispersal;Acipenseriformes;Early life history;Shortnose sturgeon;Adaptive significance;Social-behavior;Life-history;Brevirostrum
期刊名称:ENVIRONMENTAL BIOLOGY OF FISHES ( 影响因子:1.844; 五年影响因子:1.839 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: We conducted laboratory experiments with Dabry's sturgeon, Acipenser dabryanus, from the upper Yangtze River to develop a conceptual model of early behavior. We daily observed fish from day-0 (embryo, first life interval after hatching) to day-30 feeding larva for preference of bright habitat and cover, swimming distance above the bottom, up- and down-stream movement, and diel activity. Hatchling to day-12 embryos and days 13-24 larvae were similar for ontogenetic behavior, i.e., neither initiated a dispersal migration, both swam within 15 cm of the bottom, both preferred bright habitat, and neither strongly preferred cover or open habitat. Embryos and larvae were weakly active day and night. Days 72-76 juveniles had a weak nocturnal downstream migration, indicating wild juveniles disperse from a spawning site. In other sturgeon species yet studied representing three genera on three continents, Dabry's sturgeon is the first that does not disperse as an embryo or larva. Development of Dabry's sturgeon is slow, requiring more cumulative temperature degree days per millimeter of larvae TL than is required for other sturgeons to develop into larvae. Thus, a dispersal migration that diverts energy from development may not be adaptive. The available information suggests the initial dispersal of early life intervals is likely done by females, which spawn in a dispersed spawning style, not the usual aggregated spawning style. Juvenile migrants had a black body and tail with a light line along the lateral scutes. The color of juvenile migrants shows that a dark body and tail is characteristic of Acipenser that migrate downstream as larvae or juveniles.
- 相关文献
作者其他论文 更多>>
-
Biology, fisheries, and conservation of sturgeons and paddlefish in China
作者:Wei, QW;Ke, FE;Zhang, JM;Zhuang, P;Luo, JD;Zhou, RQ;Yang, WH
关键词:Acipenseriformes;Acipenser;Huso;Psephurus;Yangtze River;Amur River;Gezhouba Dam;Three Gorges Project;spawning areas
-
Ontogenetic behavior and migration of Chinese sturgeon, Acipenser sinensis
作者:Zhuang, P;Kynard, B;Zhang, LZ;Zhang, T;Cao, WX
关键词:Acipenseridae;Early life-history;Migration;Habitat preference;Fish;Shortnose sturgeon;Life-history;Brevirostrum;Biology;River
-
Use of electronarcosis to immobilize juvenile lake and shortnose sturgeons for handling and the effects on their behavior
作者:Henyey, E;Kynard, B;Zhuang, P
关键词:
-
Comparative ontogenetic behavior and migration of kaluga, Huso dauricus, and Amur sturgeon, Acipenser schrenckii, from the Amur River
作者:Zhuang, P;Kynard, B;Zhang, LZ;Zhang, T;Cao, WX
关键词:Habitat;Early life history;Sturgeon biogeography;Acipenseriformes;Shortnose sturgeon;Adaptive significance;Siberian sturgeon;Social-behavior;Life-history;Body color;Brevirostrum
-
Overview of biology and aquaculture of Amur sturgeon (Acipenser schrenckii) in China
作者:Zhuang, P;Kynard, B;Zhang, L;Zhang, T;Zhang, Z;Li, D
关键词:Feeding trials
-
Ontogenetic behavior and migration of Volga River Russian sturgeon, Acipenser gueldenstaedtii, with a note on adaptive significance of body color
作者:Kynard, B;Zhuang, P;Zhang, LZ;Zhang, T;Zhang, Z
关键词:Sturgeon habitat;Early life history;Dispersal;Acipenseriformes;Shortnose sturgeon;Life-history;Brevirostrum;Fishes