Comparative immunity of Salmo salar and Oncorhynchus kisutch during infestation with the sea louse Caligus rogercresseyi : An enrichment transcriptome analysis

2016 ◽  
Vol 59 ◽  
pp. 276-287 ◽  
Author(s):  
Valentina Valenzuela-Muñoz ◽  
Sebastian Boltaña ◽  
Cristian Gallardo-Escárate
Aquaculture ◽  
2018 ◽  
Vol 482 ◽  
pp. 203-210 ◽  
Author(s):  
O. Mardones ◽  
E. Devia ◽  
B.S. Labbé ◽  
R. Oyarzún ◽  
L. Vargas-Chacoff ◽  
...  

1992 ◽  
Vol 133 (3) ◽  
pp. 393-403 ◽  
Author(s):  
M. Rand-Weaver ◽  
P. Swanson ◽  
H. Kawauchi ◽  
W. W. Dickhoff

ABSTRACT Somatolactin (SL), a newly discovered fish pituitary protein belonging to the GH/prolactin family, was isolated from coho salmon (Oncorhynchus kisutch). Antibodies were raised to purified coho SL, and a homologous radioimmunoassay was developed and validated. The assay was specific for SL as indicated by the absence of cross-reactivity with coho salmon GH, gonadotrophins I and II and less than 0·2% cross-reaction to prolactin. Serial dilutions of plasma and pituitary extracts from Oncorhynchus species including coho salmon, chinook salmon and rainbow trout were parallel to the coho salmon SL standard curve. Displacement curves for dilutions of Atlantic salmon (Salmo salar) plasma, but not pituitary extract were parallel to the standards. Plasma levels of SL were measured in coho salmon throughout the final year of reproductive maturation. During the period of gonadal growth, plasma SL levels increased and were highly correlated to oestradiol levels in females and 11-ketotestosterone levels in males. Peak levels of SL were observed at the time of final maturation and spawning in both sexes. It is hypothesized that SL may regulate some physiological aspect of reproduction. Journal of Endocrinology (1992) 133, 393–403


1976 ◽  
Vol 33 (4) ◽  
pp. 1068-1087 ◽  
Author(s):  
J. R. Calaprice

The culture of marine organisms may be classified into four categories. Marine animal husbandry: the intensive culture in floating pens or impoundments of salmonids in Europe and North America and yellowtail (Seriola quinqueradiata), puffer, and shrimp (Penaeus japonicus) in Japan yields 3,000–610,000 kg/ha per yr. Traditional mariculture: the culture of milkfish, mullet and shrimp in ponds and ground culture of oysters and mussels yields 200–5,000 kg/ha per yr. Float culture of sessiles such as oysters, mussels, and algae yields 80,000–750,000 kg/ha per yr. Sea ranching: the culture of salmonids in hatcheries, release prior to migration and subsequent recapture. Coho (Oncorhynchus kisutch), chinook (O. tshawytscha), and Atlantic salmon (Salmo salar) yield 0.76–2.5 million kg/ha per yr while pink (O. gorbuscha) and chum salmon (O. keta) yield 2.3–22.0 million kg/ha per yr. Data on nutritional and ecological requirements are discussed in relation to the feasibility of increasing yields using genetic methods.


1978 ◽  
Vol 35 (6) ◽  
pp. 907-909 ◽  
Author(s):  
Philip E. K. Symons

Juveniles of coho (Oncorhynchus kisutch) and Atlantic salmon (Salmo salar) proved capable of leaping falls at least 5 body lengths in height. No species differences were apparent: both species leapt lower falls (12 cm) more readily than higher ones (27 and 57 cm) and proportionately more leaps occurred on days with temperatures between 14.0 and 17.0 °C than on days with lower temperatures. Key words: fish, freshwater fish, behavior, migrations, environmental conditions, temperature effects


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