南方水产科学
南方水產科學
남방수산과학
South China Fisheries Science
2015年
5期
108-116
,共9页
南沙海域%永暑礁%金带齿颌鲷%渔业生物学
南沙海域%永暑礁%金帶齒頜鯛%漁業生物學
남사해역%영서초%금대치합조%어업생물학
Nansha area%Yongshu Reef%Gnathodentex aurolineatus%fishery biology
根据2013年于南沙海域永暑礁手钓采集的金带齿颌鲷（ Gnathodentex aurolineatus）样品，对其体长与体质量组成及关系、年龄组成、性比及性腺成熟组成、摄食强度等进行了初步研究。结果显示，7月和9月金带齿颌鲷体长分别为112~157 mm和120~162 mm，其体长分布、各体长组平均体长及平均体质量无显著差异（ P>0.05）。7月和9月其体长与体质量关系生长参数b值分别为2.8148和2.6296。92个耳石中，年龄为1~11龄；7月优势年龄组为2~4龄，峰值为2龄；9月优势年龄组为3~6龄，峰值为6龄；其von Bertalanffy生长方程生长参数分别为：l∞=224 mm，K =0.028，t0=-27.282。7月金带齿颌鲷性腺成熟度包括Ⅱ期和Ⅲ期，9月则包括Ⅰ期、Ⅱ期和Ⅲ期。7月金带齿颌鲷摄食等级均以2级、3级和4级为主，9月则均以1级、2级和3级为主。随体长增加金带齿颌鲷雄性个体饱满指数降低。
根據2013年于南沙海域永暑礁手釣採集的金帶齒頜鯛（ Gnathodentex aurolineatus）樣品，對其體長與體質量組成及關繫、年齡組成、性比及性腺成熟組成、攝食彊度等進行瞭初步研究。結果顯示，7月和9月金帶齒頜鯛體長分彆為112~157 mm和120~162 mm，其體長分佈、各體長組平均體長及平均體質量無顯著差異（ P>0.05）。7月和9月其體長與體質量關繫生長參數b值分彆為2.8148和2.6296。92箇耳石中，年齡為1~11齡；7月優勢年齡組為2~4齡，峰值為2齡；9月優勢年齡組為3~6齡，峰值為6齡；其von Bertalanffy生長方程生長參數分彆為：l∞=224 mm，K =0.028，t0=-27.282。7月金帶齒頜鯛性腺成熟度包括Ⅱ期和Ⅲ期，9月則包括Ⅰ期、Ⅱ期和Ⅲ期。7月金帶齒頜鯛攝食等級均以2級、3級和4級為主，9月則均以1級、2級和3級為主。隨體長增加金帶齒頜鯛雄性箇體飽滿指數降低。
근거2013년우남사해역영서초수조채집적금대치합조（ Gnathodentex aurolineatus）양품，대기체장여체질량조성급관계、년령조성、성비급성선성숙조성、섭식강도등진행료초보연구。결과현시，7월화9월금대치합조체장분별위112~157 mm화120~162 mm，기체장분포、각체장조평균체장급평균체질량무현저차이（ P>0.05）。7월화9월기체장여체질량관계생장삼수b치분별위2.8148화2.6296。92개이석중，년령위1~11령；7월우세년령조위2~4령，봉치위2령；9월우세년령조위3~6령，봉치위6령；기von Bertalanffy생장방정생장삼수분별위：l∞=224 mm，K =0.028，t0=-27.282。7월금대치합조성선성숙도포괄Ⅱ기화Ⅲ기，9월칙포괄Ⅰ기、Ⅱ기화Ⅲ기。7월금대치합조섭식등급균이2급、3급화4급위주，9월칙균이1급、2급화3급위주。수체장증가금대치합조웅성개체포만지수강저。
Taking Glowfish( Gnathodentex aureolineatus)collected by handline in Yongshu Reef of Nansha area in the South China Sea in 2013 as samples,we studied the composition and relation of body length with body weight,age composition,sex ratio,gonad maturity composition and feeding intensity of G. aureolineatus. The results show that the ranges of body length of G. aureolineatus were 112~157 mm and 120~162 mm in July and September,respectively,no significant difference was found in the body length distribu-tion,average body length and weight(P>0. 05). The growing parameters(b value)between body length and body weight in July and September were 2. 814 8 and 2. 629 6,respectively. The age range of 92 otolith identified was 1~11 year old. The preponderant class and peak of age were 2~4 and 2 years old in July,and 3~6 and 6 years old in September. The parameters of the von Bertalanffy growth function were as follows:l∞ =224 mm,K=0. 028,t0 = -27. 282. The gonad maturity of G. aureolineatus were StageⅡ andⅢ in July,StageⅠ,Ⅱ andⅢ in September;the feeding stages of female and male G. aureolineatus were mainly at Stage 2,3 and 4 in July and Stage 1,2 and 3 in September. The repletion index of male G. aureolineatus decreased with increasing body length.
