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Ostaszewska T., Szatkowska I., Verri T., Dabrowski K., Romano A., Barca A., Muszyńska M., Dybus A., Grochowski P., Kamaszewski M

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Ostaszewska T., Szatkowska I., Verri T., Dabrowski K., Romano A., Barca A., Muszyńska M., Dybus A., Grochowski P., Kamaszewski M Ostaszewska T., Szatkowska I., Verri T., Dabrowski K., Romano A., Barca A., Muszyńska M., Dybus A., Grochowski P., Kamaszewski M. Cloning two PepT1 cDNA fragments of common carp, Cyprinus carpio (Actinopterygii: Cypriniformes: Cyprinidae) .............................................................................................................................................................................. 81 Mukherjee S., Kaviraj A. Evaluation of growth and bioaccumulation of cobalt in different tissues of common carp, Cyprinus carpio (Actinopterygii: Cypriniformes: Cyprinidae), fed cobalt-supplemented diets ...................................... 87 Adewolu M.A., Benfey T.J. Growth, nutrient utilization and body composition of juvenile bagrid catfish, Chrysichthys nigrodigitatus (Actinopterygii: Siluriformes: Claroteidae), fed different dietary crude protein levels ............................................................. 95 Omoregie E., Ajima M.N.O., Keke R.I., Więski K. Effect of single superphosphate fertilizer on survival and respiratory dynamics of Nile tilapia, Oreochromis niloticus (Actinopterygii: Perciformes: Cichlidae) ..................................................................................................................... 103 Engin S., Seyhan K. Biological characteristics of rock goby, Gobius paganellus (Actinopterygii: Perciformes: Gobiidae), in the south-eastern Black Sea .................................................................................................................................................................................................................. 111 Kempter J., Sadowski J., Schütze H., Fischer U., Dauber M., Fichtner D., Panicz R., Bergmann S.M. Koi herpes virus: do acipenserid restitution programs pose a threat to carp farms in the disease-free zones? .... 119 Laptikhovsky V., Brickle P. Aspects of embryonic development in two southwest Atlantic gadiform fish: tadpole codling, Salilota australis (Moridae), and southern blue whiting, Micromesistius australis (Gadidae) ..................................... 127 Więcaszek B., Keszka S., Sobecka E., Boeger W.A. Asian pangasiids—an emerging problem for European inland waters? Systematic and parasitological aspects .... 131 Tuncer S., Orlov A., Ozen O., Bilgin S. New record of elongate lanternfish, Notoscopelus elongatus (Costa, 1844), from the coastal waters of Aegean Sea, Turkey, with notes on species’ morphology and distribution .................................................................................. 139 Formicki K., Smaruj I., Szulc J., Winnicki A. Microtubular network of the gelatinous egg envelope within the egg ribbon of European perch, Perca fluviatilis L.................................................................................................................................................................................................................................................... 147 Yokes M.B., Bilecenoglu M., Goren M., Galil B.S., Diamant A. Genetic evidence for wide distribution of the alien prawn-goby, Vanderhorstia mertensi (Actinopterygii: Perciformes: Gobiidae), along the northeast Mediterranean.................................................................................... 153 EDITORIAL POLICY AND GENERAL INFORMATION ................................................................................................................................. 157 2009 39 (2).
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  • Age and Growth of the Southern Blue Whiting Micromesistius Australis in the SW Atlantic*
    SCI. MAR., 64 (3): 269-274 SCIENTIA MARINA 2000 Age and growth of the southern blue whiting Micromesistius australis in the SW Atlantic* MARIA CRISTINA CASSIA Instituto Nacional de Investigación y Desarrollo Pesquero, Paseo Victoria Ocampo N° 1, Mar del Plata (7600), Argentina. E-mail: mccassia@ inidep.edu.ar SUMMARY: Age and growth of southern blue whiting Micromesistius australis are studied. Sagitta otoliths from 3650 specimens were used for age determination. These were taken during research surveys and commercial catches in the South West Atlantic during 1994 and 1995. The size of fishes ranged from 17 to 60 cm total length, corresponding to ages 0 to 23 years. Females attained a greater asymptotic length (L∞ 59.74 cm) than males (L∞ 54.72 cm). Comparison of growth curves by the likelihood ratio showed that the differences among females and males were due to the asymptotic length, while the other parameters (K and t0) were not statistically different. The mean weight-at-age, mean length-at-age, and total mortali- ty (Z) were estimated. Growth parameters estimated by sex in the period 1994-95, mean size per age group, and the num- ber of individuals per age in the catches show differences with those calculated when the population was in the early stage of exploitation. A predominance of 2 to 9 year old individuals was observed in the total catches in 1994-1995, whereas in the beginning of the fisheries total catches were basically fish 15 to 19 years old. Key words: Micromesistius australis, age, growth, population-age structure, Southwest Atlantic.
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