Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea
About 3600 specimens were collected by bottom trawl at 15sampling stations.24 biometric characters were measured for each specimens atthe laboratory. Microscopic cross – sections of statolith wereused for age determination. Sex determination and fecunditywere determined. Population dynamics paramete...
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Islamic Azad University, Science and Research Branch, Tehran, Marine Biology
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ftoceandocs:oai:aquadocs.org:1834/34441 2023-05-15T16:01:49+02:00 Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea Smiee, Keivandokht 2008 application/pdf 101 http://hdl.handle.net/1834/34441 fa per Islamic Azad University, Science and Research Branch, Tehran, Marine Biology http://www.srbiau.ac.ir/ http://hdl.handle.net/1834/34441 http://aquaticcommons.org/id/eprint/19184 17408 2015-12-19 09:34:36 19184 Islamic Azad University, Science and Research Branch, Tehran Biology Ecology Fisheries thesis 2008 ftoceandocs 2023-04-06T17:05:10Z About 3600 specimens were collected by bottom trawl at 15sampling stations.24 biometric characters were measured for each specimens atthe laboratory. Microscopic cross – sections of statolith wereused for age determination. Sex determination and fecunditywere determined. Population dynamics parameters as well asstock as stock assessment including cohort analysis wereestimated using FISAT software. The findings showed thatDorsal Mantle Length (DML) and Body weight (BW) of theIndian squid were 133.9 ± 0.78 mm and 99.61 ± 0.95 grespectively. Strong correlation was found between these 2variables (R2 = 0.90). The maximum age was 5 years.Relationship between DML and age was highly significantlyof p ≤ 0.05.Overall sex ratio (M: F = 0.52) was significantly differentfrom the expected 1:1 ratio (p ≤ 0.05).The ovary weight and nidamental glands weight were 7.72 ±0.0006 g and 3.07 ± 0.0003g respectively. Absolute andrelative fecundity of the Indian squid were found to be 122733± 30.87 and 2348 ± 0.4 respectively. GSI were 14.35 in Apriland 8.63 in July. This squid is therefore a spring spawner. Theinfinite dorsal mantle length were 258.62 mm for females,194.72 mm for males and 252.02 for both sexes respectively.For population growth and mortality parameters; K (0.65 peryear for both sexes, 0.85 per year for males, 0.65 per year forfemales); t0 (0.24year for both sexes, 0.22 year in females,0.26 year in male); φ` (2.30 in both sexes, 2.47 for males, 2.37for females); Z (1.17 per year for both sexes, 1.10 per year infemales, 1.39 per year, in males); M (0.70 per year for bothsexes, 0.90 for males, 0.67 for females); F(0.27 per year forboth sexes, 0.27 per year in males, 0.195 per year in females).Exploitation coefficient were 0.51 per year for both sexes,0.57 per year males and 0.51 per year females respectively.The results indicates that since the Indian squid is a short liveaquatic organism, therefore, the exploitation coefficient couldbe raised to 0.7 per year. The analysis showed that totalbiomass and MSY were 10103.5 ton ... Thesis DML IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Indian |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
Persian |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Smiee, Keivandokht Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
topic_facet |
Biology Ecology Fisheries |
description |
About 3600 specimens were collected by bottom trawl at 15sampling stations.24 biometric characters were measured for each specimens atthe laboratory. Microscopic cross – sections of statolith wereused for age determination. Sex determination and fecunditywere determined. Population dynamics parameters as well asstock as stock assessment including cohort analysis wereestimated using FISAT software. The findings showed thatDorsal Mantle Length (DML) and Body weight (BW) of theIndian squid were 133.9 ± 0.78 mm and 99.61 ± 0.95 grespectively. Strong correlation was found between these 2variables (R2 = 0.90). The maximum age was 5 years.Relationship between DML and age was highly significantlyof p ≤ 0.05.Overall sex ratio (M: F = 0.52) was significantly differentfrom the expected 1:1 ratio (p ≤ 0.05).The ovary weight and nidamental glands weight were 7.72 ±0.0006 g and 3.07 ± 0.0003g respectively. Absolute andrelative fecundity of the Indian squid were found to be 122733± 30.87 and 2348 ± 0.4 respectively. GSI were 14.35 in Apriland 8.63 in July. This squid is therefore a spring spawner. Theinfinite dorsal mantle length were 258.62 mm for females,194.72 mm for males and 252.02 for both sexes respectively.For population growth and mortality parameters; K (0.65 peryear for both sexes, 0.85 per year for males, 0.65 per year forfemales); t0 (0.24year for both sexes, 0.22 year in females,0.26 year in male); φ` (2.30 in both sexes, 2.47 for males, 2.37for females); Z (1.17 per year for both sexes, 1.10 per year infemales, 1.39 per year, in males); M (0.70 per year for bothsexes, 0.90 for males, 0.67 for females); F(0.27 per year forboth sexes, 0.27 per year in males, 0.195 per year in females).Exploitation coefficient were 0.51 per year for both sexes,0.57 per year males and 0.51 per year females respectively.The results indicates that since the Indian squid is a short liveaquatic organism, therefore, the exploitation coefficient couldbe raised to 0.7 per year. The analysis showed that totalbiomass and MSY were 10103.5 ton ... |
format |
Thesis |
author |
Smiee, Keivandokht |
author_facet |
Smiee, Keivandokht |
author_sort |
Smiee, Keivandokht |
title |
Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
title_short |
Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
title_full |
Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
title_fullStr |
Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
title_full_unstemmed |
Indian squid, Uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of Oman Sea |
title_sort |
indian squid, uroteuthis duvauceli, is an important commercial marine fauna in the coastal waters of oman sea |
publisher |
Islamic Azad University, Science and Research Branch, Tehran, Marine Biology |
publishDate |
2008 |
url |
http://hdl.handle.net/1834/34441 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
DML |
genre_facet |
DML |
op_source |
http://aquaticcommons.org/id/eprint/19184 17408 2015-12-19 09:34:36 19184 Islamic Azad University, Science and Research Branch, Tehran |
op_relation |
http://www.srbiau.ac.ir/ http://hdl.handle.net/1834/34441 |
_version_ |
1766397535208865792 |