长沙黄兴路步行街
Reproduction, growth and feeding of the dragonet, Callionymus lyra (Teleostei: Callionymidae), in
Galway Bay, Ireland
王优秀个人简介
期刊名称: Journal of the Marine Biological Association of the United Kingdom天蝎和金牛
作者: King, Pauline A.,Fives, Julie M.,McGrath, David
和田玉挂件
年份: 1994年
期号: 第03期
东门礁关键词: TESTICULAR MACROPHAGES;HORMONES;HYPOPHYSECTOMIZED RATS
放风筝的作文300字三年级
摘要:A Galway Bay population of the dragonetCallionymus lyra(L.) was investigated between March 1978 and November 1979. Monthly collections were made on board commercial fishing vesls. A total of 3302 fish was examined. The male to female x ratio in the catch was 1·14:1 and it departed significantly from a 1:1 ratio. Males grew significantly faster than females, when measured by length
and by weight, and attained a greater maximum length, but females had a longer
life span. Females were significantly heavier than males for any body length. The spawning ason was protracted, lasting from January to August and peaking
纹身大臂during February-April.Callionymus lyrais a carnivore, feeding mainly on polychaetes and crustaceans, but molluscs and echinoderms were also eaten in abundance. A yearly cycle in feeding intensity was obrved,
内容由中国教育图书进出口有限公司引进情人节礼物送老婆