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Journals / Turkish Journal of Fisheries and Aquatic Sciences / 2016 / Cilt: 16 - Sayı: 4

Size-Selectivity of Trammel Nets for Two Herbivorous Fish Species in Coral Reef Fisheries of Jeddah, Saudi Arabia

Mohamed Hosny GABR
Ahmad Osman MAL
Pages
993–1002
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Materials and Methods

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Size-selectivity of monofilament trammel nets for two important herbivorous species.
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Key Findings & Data:Acanthurus sohal and Siganus rivulatus in Jeddah fisheries was investigated using three different inner-panel mesh sizes: 50, 56, and 62 mm.
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Conclusion & Impact:Materials and Methods
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Özet

Size-selectivity of monofilament trammel nets for two important herbivorous species. Acanthurus sohal and Siganus rivulatus in Jeddah fisheries was investigated using three different inner-panel mesh sizes: 50, 56, and 62 mm. The SELECT method was used to calculate selectivity parameters. Five models were fitted to estimate the selectivity curves, namely: normal location, normal scale, lognormal, gamma and bi-modal. In addition, length-girth (Gmax) and length-weight relationships were determined. Based on the lowest deviance/degrees of freedom ratio, the log-normal model provided the best fit for S. rivulatus catch, with modal lengths of 18.3, 20.5, and 22.7 cm, whereas the bi-modal model provided the best fit for A. sohal catch, with modal lengths of 19.30, 21.62, and 23.93 cm for 50, 56 and 62 mm mesh sizes, respectively. The length-girth relationship could be described by the linear equation: Gmax = 0.69+0.67TL for S. rivulatus and Gmax=1.32+0.712TL for A. sohal. The length-weight relationship could be described by the power equation: W=0.024TL2.81 for A. sohal and W=0.015TL2.99 for S. rivulatus. We recommend using trammel nets with a minimum inner-panel mesh size of 62 mm for the rational exploitation of the two species. two species. Materials and Methods

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Cite This Article

GABR, M. H., MAL, A. O. (2016). Size-Selectivity of Trammel Nets for Two Herbivorous Fish Species in Coral Reef Fisheries of Jeddah, Saudi Arabia. Turkish Journal of Fisheries and Aquatic Sciences, Cilt: 16 - Sayı: 4, 993–1002. https://ajindex.com/articles/408034

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References (4)

  1. Acosta, A.R., and Appeldoorn, R.S. 1995. Catching efficiency and selectivity of gill nets and trammel nets in coral reefs from southwestern Puerto Rico. Fisheries Research, 22 (1995), pp. 175-196. doi: 10.1016/0165-7836(94)00328-T Balik, I. 1999. Investigation of the Selectivity of Multifilament and Monofilament Gill Nets on Pike perch (Stizostedion lucioperca (L., 1758)) Fishing in Lake Beysehir. Turkish Journal of Zoology, 23: 179- 183. Baranov, F. I. 1948. Theory of fishing with gill-nets. Pishchepromizdat, Moscow. Translated from Russian by Ontario Department of Lands, Mafle, Ontario, 45 pp. Bilecenoglu, M. and Kaya, M. (2002)
  2. Growth of marbled spinefoot, Siganus rivulatus, Forsskål, 1775 (Teleostei: Siganidae) introduced to Antalya Bay, eastern Mediterranean Sea (Turkey). Journal of the Fisheries Research, 54 (2): 279-285. doi:10.1016/S0165-7836(00)00296-4
  3. Carol, J., and García-Berthou, E. 2007. Gillnet selectivity and its relationship with body shape for eight freshwater fish species. Journal of Applied Ichthyology, 23(6):654-660. doi: 10.1111/j.1439- 0426.2007.00871.x Carpenter, R.C. 1986. Partitioning herbivory and its effects on coral reef algal communities. Ecological Monograph, 56: 345–365. doi: 10.2307/1942551. Carpenter, R.C. 1990. Mass mortality of Diadema antillarum II. Effects on population densities and grazing intensity of parrotfishes and surgeonfishes. Marine Biology 104:79–86. doi: 10.1007/BF01313160 Cochrane, K.L., and Garcia, S.M. 2009. A Fishery Manager’s Guidebook, 2nd Edition. FAO and Wiley Blackwell Publishers, 518 pp. Dinçer, A.C., and Bahar, M. 2008. Multifilament gillnet selectivity for the red mullet (Mullus barbatus) in the Eastern Black Sea Coast of Turkey, Trabzon. Turkish Journal of Fisheries and Aquatic Sciences, 8: 355-359.
  4. Dulvy, N.K., Polunin, N.V.C. Mill, A.C. and Graham, N.A.J. 2004. Size structural change in lightly exploited coral reef fish communities: evidence for weak indirect effects. Canadian Journal of Fisheries and Aquatic Science. 61: 466–475. doi: 10.1139/f03- 169 El-Far, A.M.M. 2008. Artisanal fishery off Al-Exandria coastal area special reference to the fishery biology of Siganus spp. MSc. Department of Zoology, Faculty of Science, Zagazig University. Erzini, K., Gonçalves, J.M.S. Bentes, L., Moutopoulos, D.K., Casal, J.A.H.C., Soriguer, M.C., Puente, E., Errazkin, L.A. and Stergiou, K.I. 2006. Size selectivity of trammel nets in southern European small-scale fisheries. Fisheries Research, 79(1-2): 183-