- 期刊
Reproductive Biology of the Blue Sprat Spratelloides gracilis in the Waters around Penghu, Central Taiwan Strait
並列摘要
The reproductive biology of the blue sprat, Spratelloides gracilis, is described based on 7737 specimens collected from Mar. 2001 to Feb. 2003 in the waters off Penghu (the Pescadores), off the southwestern coast of Taiwan in the central Taiwan Strait. The spawning season was estimated to be from Feb. to Sept. based on progressive changes in the size of the ovaries, histological examination of the ovaries, oocyte diameter measurements, and gonadosomatic index calculations. The body weight (BW)-fork length (FL) relationship was estimated to be BW = 6.06 x 10^(-6) FL^(3.087) for both sexes combined (n = 4042, p ＜ 0.05). Eight stages of oocyte development were determined based on the histological examination. Ovarian development could be divided into immature, maturing, mature, and spent stages. Mean fecundity of this species was 2606 ± 1678 eggs, and mean batch fecundity was 1204 ± 714 eggs. The sex ratio (0.45) significantly differed from 0.5 (p ＜ 0.05). Relationships of fecundity (F) and batch fecundity (BF) with fork length (FL) were estimated to be F = 0.0002 FL^(3.841) (r^2 = 0.58, n = 62, p ＜ 0.05) and BF = 0.001 FL3.806 (r^2 = 0.82, n = 60, p ＜ 0.05), respectively. Size at 1st maturity for females estimated from the logistic model was 54 mm FL, which corresponded to an age of 120 d old.
延伸閱讀
- Tzeng, T. D., Wang, S. J., & Yeh, S. Y. (2003). Temporal and Spatial Variation of morphology for the Red Scad(Decapterus Kurroides)in the Adjacent Waters off Taiwan. 臺灣水產學會刊, 30(3), 217-226. https://doi.org/10.29822/JFST.200309.0003
- Dai, C. F., & Yang, H. P. (1995). Distribution of Spirobranchus Giganteus Corniculatus (Hove) on the Coral Reefs of Southern Taiwan. Zoological Studies, 34(2), 117-125. https://www.airitilibrary.com/Article/Detail?DocID=10215506-199504-201308190034-201308190034-117-125
- Wu, C. C., Weng, J. S., Liu, K. M., & Su, W. C. (2008). Reproductive Biology of the Notchedfin Threadfin Bream, Nemipterus peronii (Nemipteridae), in Waters of Southwestern Taiwan. Zoological Studies, 47(1), 103-113. https://www.airitilibrary.com/Article/Detail?DocID=10215506-200801-47-1-103-113-a
- Chiou, W. D., Syu, S. Y., & Wang, C. M. (2018). Reproductive biology of lanternfish Benthosema pterotum (Myctophidae) in the coastal waters off southwestern Taiwan. 臺灣水產學會刊, 45(3), 129-143. https://doi.org/10.29822/JFST.201809_45(3).0001
- Jean, C. T., Lee, S. C., & Chen, C. T. (1992). Morphometric Studies on the Fishes of Subfamily Sparinae(Perciformes: Sparidae)from the Coastal Waters of Taiwan. 臺灣水產學會刊, 19(4), 231-238. https://doi.org/10.29822/JFST.199212.0001