Peña Thays Allen, Jiménez Mayré, Villafranca Sioliz
Instituto Oceanográfico de Venezuela, Dpto. Biologia Marina, Universidad de Oriente, Núcleo de Sucre. Cumaná, Venezuela.
Rev Biol Trop. 2004 Dec;52(4):973-80.
Fish are among the most abundant and diverse groups in Thalassia testudinum communities, in turn considered among the most productive and important ecosystems in marine environments. Three stations were sampled in the southern shore of Cariaco gulf (northwestern Venezuela) to quantify fish associated with T. testudinum, from December 1996 to November 1997. We used a 50 m long beach net ("chinchorro playero", height 1.50 m, mesh opening 0.7 cm. A total of 15 509 individuals were collected: 27 families, 38 genera and 44 specie were identified. The most abundant, in descending order, were Haemulon boschmae, Nicholsina usta, Orthopristis ruber, Xenomelaniris brasiliensis and Diplodus argenteus. Thirty three species were occasional visitors (75.0%) and ten were recurrent visitors (22.7%). The permanent resident, N. usta, is a characteristic species that uses T. testudinum throughout its life cycle.
鱼类是泰来草群落中数量最为丰富且种类最为多样的群体之一，而泰来草群落又被认为是海洋环境中生产力最高且最重要的生态系统之一。1996年12月至1997年11月期间，在卡里亚科湾（委内瑞拉西北部）南岸的三个站点进行了采样，以量化与泰来草相关的鱼类。我们使用了一张50米长的海滩网（“chinchorro playero”，高1.50米，网眼开口0.7厘米）。总共收集到15509个个体：鉴定出27个科、38个属和44个物种。按数量从多到少依次为博氏海猪鱼、乌氏尼可海鲫、红锯眶锯雀鲷、巴西异黑丽鱼和银鲷。33个物种为偶见访客（75.0%），10个为常客（22.7%）。永久栖息的乌氏尼可海鲫是一种特征性物种，其在整个生命周期中都依赖泰来草。
