REGULATORY PROCESSES IN THE MONOGENEAN GYRODACTYLUS-SALARIS MALMBERG ATLANTIC SALMON (SALMO-SALAR L) ASSOCIATION .1. FIELD STUDIES IN SOUTHEAST NORWAY

被引：34

作者：

JANSEN, PA

BAKKE, TA

机构：

[1] Zoological Museum, N-0562 Oslo

来源：

FISHERIES RESEARCH | 1993年 / 17卷 / 1-2期

关键词：

D O I：

10.1016/0165-7836(93)90009-V

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The seasonal population dynamics of Gyrodactylus salaris on wild Atlantic salmon (Salmo salar) under natural conditions were studied over a period of 19 months in the River Glitra, a tributary to the River Lierelva in southeast Norway. The abundance of the parasite on 1+ and older salmon parr was positively related to water temperature, i.e. the abundance was highest in summer and lowest at the end of winter. In the 0+ cohort, numbers of G. salaris increased steadily through summer and autumn, while in the 1+ and older cohorts of salmon parr numbers of G. salaris decreased in the same period. Generally there was a negative relationship between parasite intensity and host size in the 1+ and older salmon parr, demonstrating heterogeneity in susceptibility and/or resistance to G. salaris among host individuals. There is also evidence in the data of parasite-induced host mortality, from the distributional pattern of G. salaris with respect to host age.

引用

页码：87 / 101

页数：15

共 45 条

[1]

Anderson, Gordon, Processes influencing the distribution of parasite numbers within host populations with special emphasis on parasite-induced host mortalities, Parasitology, 85, pp. 373-398, (1982)

[2]

Bakke, MacKenzie, Comparative susceptibility of native Scottish and Norwegian stocks of Atlantic salmon, Salmo salar L., to Gyrodactylus salaris Malmberg: Laboratory experiments, Fish. Res., 17, pp. 69-85, (1993)

[3]

Bakke, Sharp, Susceptibility and resistance of minnows, Phoxinus phoxinus (L.) to Gyrodactylus salaris Malmberg, 1957 (Monogenea) under laboratory conditions, Fauna norv. Ser. A, 11, pp. 51-55, (1990)

[4]

Bakke, Jansen, Hansen, Differences in the host resistance of Atlantic salmon, Salmo salar L., stocks to the monogenean Gyrodactylus salaris Malmberg, 1957, J. Fish Biol., 37, pp. 577-587, (1990)

[5]

Bakke, Jansen, Brabrand, Susceptibility and resistance of brook lamprey, Lampetra planeri (Bloch), roach, Rutilus rutilus (L.) and perch, Perca fluviatilis L. to Gyrodactylus salaris Malmberg (Monogenea), Fauna norv. Ser. A, 11, pp. 23-26, (1990)

[6]

Bakke, Jansen, Kennedy, The host specificity of Gyrodactylus salaris Malmberg (Platyhelminthes, Monogenea): susceptibility of Oncorhynchus mykiss (Walbaum) under experimental conditions, J. Fish Biol., 39, pp. 45-57, (1991)

[7]

Bakke, Jansen, Hansen, Experimental transmission of Gyrodactylus salaris Malmberg, 1957 (Platyhelminthes, Monogenea) from Atlantic salmon (Salmo salar) to the European eel (Anguilla anguilla), Can. J. Zool., 69, pp. 733-737, (1991)

[8]

Bakke, Harris, Jansen, The susceptibility of Salvelinus fontinalis (Mitchill) to Gyrodactylus salaris Malmberg (Platyhelminthes

[9]

Monogenea) under experimental conditions, J. Fish Biol., 41, pp. 499-507, (1992)

[10]

Bakke, Harris, Jansen, Hansen, Host specificity and dispersal strategy in gyrodactylid monogeneans with particular reference to Gyrodactylus salaris (Platyhelminthes Monogenea), Diseases of Aquatic Organisms, 13, pp. 64-74, (1992)

← 1 2 3 4 5 →