MODIFICATION OF THE ESCAPE VENT OF THE POT FOR SPINY ROCK LOBSTER (PANULIRUS HOMAROUS) IN TERMS OF POSITION AND SIZE, (SISTAN & BALOUCHESTAN PROVINCE-IRAN)

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AZHDEHAKOSH POUR ASHKAN; VALINASAB TOURAJ; AZHIR MOHAMMAD TAGHI; HOSENI AGHOZBENI SEYED MOHAMMAD HOSEIN; SISTANI MOHEB ALI; RASTIANNASAB ABOLHASAN

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Journal: JOURNAL OF MARINE BIOLOGY Year:2013 | Volume:4 | Issue:16 Page(s): 1-10

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Title

MODIFICATION OF THE ESCAPE VENT OF THE POT FOR SPINY ROCK LOBSTER (PANULIRUS HOMAROUS) IN TERMS OF POSITION AND SIZE, (SISTAN & BALOUCHESTAN PROVINCE-IRAN)

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Keywords

SPINY LOBSTERQ2

ESCAPE VENTQ2

PANULIRUS HOMARUSQ2

CARAPACE LENGTHQ2

POTQ2

OMAN SEAQ2

SISTAN &BALOUCHESTAN PROVINCEQ2

Abstract

This investigation was conducted in order to standardize (to modify) the POT size for spiny rock lobster, Panulirus homarous by designing appropriate ESCAPE VENTs in terms of position and size to allow the escape of immature lobsters (CL£70 mm). The lobsters were examined by comparing experiment in four kind of trap with common fisherman trap as control. A location of study was laboratory-based utilizing concrete flow-through sea-water "raceway" tanks. CARAPACE LENGTHs (CL), Width (CW) of Lobsters that use in the research were 56±5.13 and 45.8±4.93 mm respectively. The Lobsters were grouped according to 5 mm CL classes for a range of 45–70 mm by placing 2 lobsters of each size class range in the POT. Each POT was monitored in the experimental tank or sea for 24 h soak time to measure the number of lobsters escaping and remaining inside. Result of ANOVA analysis indicated that the escape characteristics of each treatment trap type were significantly different from the control traps (p£0.05). Comparative average escapement between the treatments and the control showed significantly differences. Observations in comparing the average percent escapement between treatment 4 with T3 and T2 were not significant (P³0.05). Relationship between CARAPACE LENGTH (CL) and carapace width (CW) of lobsters used in this research was indicated that, 71 mm escapement vet is superior. As we expected, result of this research indicated that increasing the vent size, decrease vent height and position of vent that was close to the bottom of trap were more effective to escapement of sub- legal lobsters and to decrease the retention in trap. As a result of this research, for lobsters with 70 mm CARAPACE LENGTH, as legal size, the best choice is treatment 3 with 71 mm ESCAPE VENT. Also the vents located at the bottom of trap were better than the other types.

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APA: Copy

AZHDEHAKOSH POUR, ASHKAN, VALINASAB, TOURAJ, AZHIR, MOHAMMAD TAGHI, HOSENI AGHOZBENI, SEYED MOHAMMAD HOSEIN, SISTANI, MOHEB ALI, & RASTIANNASAB, ABOLHASAN. (2013). MODIFICATION OF THE ESCAPE VENT OF THE POT FOR SPINY ROCK LOBSTER (PANULIRUS HOMAROUS) IN TERMS OF POSITION AND SIZE, (SISTAN & BALOUCHESTAN PROVINCE-IRAN). JOURNAL OF MARINE BIOLOGY, 4(16), 1-10. SID. https://sid.ir/paper/174656/en

Vancouver: Copy

AZHDEHAKOSH POUR ASHKAN, VALINASAB TOURAJ, AZHIR MOHAMMAD TAGHI, HOSENI AGHOZBENI SEYED MOHAMMAD HOSEIN, SISTANI MOHEB ALI, RASTIANNASAB ABOLHASAN. MODIFICATION OF THE ESCAPE VENT OF THE POT FOR SPINY ROCK LOBSTER (PANULIRUS HOMAROUS) IN TERMS OF POSITION AND SIZE, (SISTAN & BALOUCHESTAN PROVINCE-IRAN). JOURNAL OF MARINE BIOLOGY[Internet]. 2013;4(16):1-10. Available from: https://sid.ir/paper/174656/en

IEEE: Copy

ASHKAN AZHDEHAKOSH POUR, TOURAJ VALINASAB, MOHAMMAD TAGHI AZHIR, SEYED MOHAMMAD HOSEIN HOSENI AGHOZBENI, MOHEB ALI SISTANI, and ABOLHASAN RASTIANNASAB, “MODIFICATION OF THE ESCAPE VENT OF THE POT FOR SPINY ROCK LOBSTER (PANULIRUS HOMAROUS) IN TERMS OF POSITION AND SIZE, (SISTAN & BALOUCHESTAN PROVINCE-IRAN),” JOURNAL OF MARINE BIOLOGY, vol. 4, no. 16, pp. 1–10, 2013, [Online]. Available: https://sid.ir/paper/174656/en

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