Aspects of growth in captive killer whales (Orcinus orca)

被引：31

作者：

Clark, ST ^{[1
]}

Odell, DK ^{[1
]}

Lacinak, CT ^{[1
]}

机构：

[1] SeaWorld Inc, Corp Zool Operat, Orlando, FL 32821 USA

来源：

MARINE MAMMAL SCIENCE | 2000年 / 16卷 / 01期

关键词：

cetacean age and growth; Gompertz; body-volume index; captive cetaceans;

D O I：

10.1111/j.1748-7692.2000.tb00907.x

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Morphometrics from 25 captive killer whales (11 captive -born) were collected at SeaWorld parks from 1984 to 1995 to determine age-specific growth parameters. For sexes combined, the body-volume index was the most accurate predictor of body weight. However, predicting weight from total length was appropriate, although it may underestimate weight of pregnant animals. Among captive-born calves, a Gompertz model was the best predictor of weight and length at age. Estimates for length and weight at birth were done using data from in utero and neonatal calves. For ages 1-5 yr, models-indicate that males grew in both weight and length at slower rates. Growth rates in males may surpass those of females at approximately 5-6 yr of age.

引用

页码：110 / 123

页数：14

共 45 条

[1] Life history of Fraser's dolphin, Lagenodelphis hosei, based on a school captured off the Pacific coast of Japan [J].