摘要:

An adenoma of the thyroid of the brackish water sheepshead minnow (Cyprinodon variegatus) appeared after the fish had been held in a saltwater aquarium with other fish. The tumor appeared to be well delineated grossly. Microscopically, the tumor was invasive into adjacent gill tissues but was without mitotic figures.

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<138:ATTIAS>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

Experimental infections of channel catfish virus were made by feeding virus to six strains of 1-, 2-, and 3-month-old channel catfish from different geographical areas and two hybrid strains. There was no significant difference in mortality between age groups. Mortality rates differed significantly between the various strains, with mean mortality ranging from 10% to 71% among infected fish. Mortality percentage of the Falcon group was significantly higher than all other groups. Hybrid strains had the lowest percentage of mortality.

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<140:CCVEWD>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

Relationships between temperature and mortality of eggs and survival of the larvae are described for the striped mullet Mugil cephalus L. Eggs were incubated at temperatures between 1.0 and 40.5 C. Mortalities were least (4.2%) within the range 22.7-23.3 C. Hatching time was inversely related to temperature. The equation Y = 3.6674 − 1.5240 X describes the relation between incubation time and temperature over the range of 11-30 C. Larvae were exposed to temperatures between 2.7 and 32.9 C. Survival up to 12 days was greatest (19.9%) at a mean temperature of 24.9 C (range 24.5-25.3 C).

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<144:TTOEAL>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

The comparison of the electrophoretic patterns of hemoglobins of individual parent species (green sunfish and bluegill) and a mixture of parental hemolysates to that of the F1hybrids revealed that the hybrid contained at least one detectable hemoglobin component which differed from those of the parental mixture.

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<148:HCOGSL>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

A technique for discontinuous electrophoresis that permits rapid and direct comparisons of multiple samples in thin sheets of polyacrylamide gel is described. The resulting electropherograms are suitable for screening for enzyme polymorphisms and for densitometric scanning and/or direct photographing after gels are stained for total proteins.

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<150:MOAEFM>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

The high incidence of ambicoloration which occurs in tank cultured Paralichthys dentatus can be reduced if the fish are provided at an early age with a substrate in which they can bury. Evidence is presented which indicates that some reversal of ambicoloration is possible. The presence of a significant degree of ambicoloration may prejudice consumer acceptance of cultured flounder which are sold with skin and heads intact.

ISSN:0002-8487    

DOI:10.1577/1548-8659(1975)104<158:AITCFP>2.0.CO;2

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

ISSN:0002-8487    

DOI:10.1577/00028487.1975.10492923

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

ISSN:0002-8487    

DOI:10.1577/00028487.1975.10492935

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

ISSN:0002-8487    

DOI:10.1577/00028487.1975.10492936

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

ISSN:0002-8487    

DOI:10.1577/00028487.1975.10492937

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor