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首页> 美国政府科技报告 >Comprehensive (1986-2001) Characterization of Size at Sexual Maturity for Hawaiian Spiny Lobster (Panulirus marginatus) and Slipper Lobster (Scyllarides squammosus) in the Northwestern Hawaiian Islands
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Comprehensive (1986-2001) Characterization of Size at Sexual Maturity for Hawaiian Spiny Lobster (Panulirus marginatus) and Slipper Lobster (Scyllarides squammosus) in the Northwestern Hawaiian Islands

机译：综合（1986-2001）在夏威夷西北部群岛的夏威夷龙虾（panulirus marginatus）和拖鞋龙虾（scyllarides squammosus）的性成熟大小特征

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摘要

Body size (tail width, TW) at which 50% of females attain functional sexual maturity (TW(sub 50)) is characterized for two species of lobsters historically important to the Northwestern Hawaiian Islands (NWHI) commercial trap fishery. Characterization use an extensive time series of research catch data spanning 16 years (1986-2001). For one species, the slipper lobster (Scyllarides squammosus), of recent growing importance to the fishery at Maro Bank, maturity was gauged by ovigerous (berried) condition of females. The TW(sub 50), of slipper lobster was estimated by fitting a 3-parameter logistic equation to percentage berried versus TW; TW(sub 50), was best described as 50.0 + or - 0.83 (SE) mm for all survey-years pooled at Maro Bank. For the other species, the endemic Hawaiian spiny lobster (Panulirus marginatus), the longstanding dominant targeted by the fishery at Necker Bank, the maturation of females could be described based on presence of a spermatomorhic (sperm) plate as well as berried condition. For spiny lobster, a more accurate estimate of TW(sub 50) was possible by fitting a 2-parameter logistic equation. Estimated TW(sub 50) was possible by fitting a 2-parameter logistic equation. Estimated TW(sub 50) of spiny lobster at Necker Bank differed between the 1986-88 and 1990-2001 surveys and was best described as 38.1 + or - 0.46 mm and 35.1 + or - 0.15 mm for the two respective periods.

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