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首页> 外文期刊>Estuarine Coastal and Shelf Science >Nursery areas of red mullet (Mullus barbatus), hake (Merluccius merluccius) and deep-water rose shrimp (Parapenaeus longirostris) in the Eastern-Central Mediterranean Sea
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Nursery areas of red mullet (Mullus barbatus), hake (Merluccius merluccius) and deep-water rose shrimp (Parapenaeus longirostris) in the Eastern-Central Mediterranean Sea

机译：地中海中东部地中海地区的红鱼（Mullus barbatus），无须鳕（Merluccius merluccius）和深水玫瑰虾（Parapenaeus longirostris）的育苗区

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摘要

The spatial pattern of the nursery areas of red mullet (Mullus barbatus), hake (Merluccius merluccius) (Linnaeus, 1758) and deep-water rose shrimp (Parapenaeus longirostris) (Lucas, 1846) was studied in the South Adriatic and North Ionian Seas (Eastern-Central Mediterranean) applying geostatistical techniques and data from time series trawl surveys conducted in the area. The analysed variables were: R (number of recruits/km~2) and R/Tot (fraction of recruits on the total sampled population). The structural analysis showed a spatial pattern of both variables characterized by continuity on a small scale. Predictions of nursery area localization with probability of finding recruits at different threshold values were obtained through median indicator kriging. For the red mullet the nurseries were mainly identified in the South Adriatic Sea off the Gargano peninsula and between Molfetta and Monopoli within 50 m in depth. The main concentration of hake juveniles was found to be between 100 and 200 m in depth along the Gargano peninsula and between Otranto and Santa Maria di Leuca, where a nursery of deep-water rose shrimp was also detected. An overlapping depth, between 100 and 200 m, was identified for hake and deep-water rose shrimp nurseries. Protection of these areas through limitations of fishing pressure is discussed.
机译：在南亚得里亚海和北爱奥尼亚海研究了红鱼（Mullus barbatus），无须鳕（Merluccius merluccius）（Linnaeus，1758）和深水玫瑰虾（Parapenaeus longirostris）（Lucas，1846）的育苗区的空间格局。 （中东部地中海地区）应用地统计技术和该地区进行的时间拖网调查得出的数据。分析的变量为：R（新兵人数/ km〜2）和R / Tot（新兵在总采样人口中的比例）。结构分析显示了两个变量的空间格局，其特征是小规模的连续性。通过中位数指标克里金法获得了在不同阈值下找到新兵的可能性的苗圃区域定位的预测。对于鱼，主要在加尔加诺半岛对面的南亚得里亚海以及在莫尔费塔和莫诺波利之间的深度为50 m的地方找到苗圃。发现沿加尔加诺半岛以及奥特朗托和圣玛丽亚迪莱卡之间无须鳕幼鱼的主要浓度在100至200 m之间，在那里还发现了深水玫瑰虾苗圃。对于无须鳕和深水玫瑰虾苗圃，确定了100至200 m的重叠深度。讨论了通过限制捕鱼压力来保护这些地区。

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