fa بررسی پارامترهای رشد، مرگ‌ومیر و اندازه بلوغ گونه لچه دهان نارنجی Thryssa vitrirostris (Gilchrist and Thompson, 1908) تخصصي Special پژوهشي Research <span style="font-size:11pt"><span style="text-justify:kashida"><span style="text-kashida:0%"><span style="line-height:150%"><span style="tab-stops:right 320.25pt 369.9pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">این مطالعه با هدف تخمین پارامترهای رشد و مرگ‌ومیر و تولید مثل ماهی لچه&shy;دهان&shy;نارنجی </span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">(</span></span></span><i><span dir="LTR" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">T</span></span></span></i><i><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">.</span></span></span></i><i><span dir="LTR" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">vitrirostris</span></span></span></i><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">) </span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">در آب‌های استان هرمزگان مورد مطالعه قرار گرفت. 1211 نمونه ماهی در این مطالعه از فروردین 1399 تا اسفند1399 در آب‌های ساحلی قشم و خلیج‌فارس به‌وسیله تورهای ساحلی مشتا و ترال‌های میگو، تورهای ترال یال اسبی جمع‌آوری گردیدند. تعداد 260 عدد ازاین‌گونه جهت تعیین سن و بررسی جنسیت تشریح گردید. برای به&shy;دست&shy;آوردن پارامترهای رشد از روش تعیین سن اتولیت و توزیع فراوانی طولی استفاده شد. جهت آنالیز داده‌های فراوانی طولی، از نرم‌افزار </span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">FISAT</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> به روش الفان 1 (</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">ELEFAN1</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">) استفاده شد. کوچک‌ترین و بزرگ‌ترین ماهیان صیدشده به&shy;ترتیب 3/2 و 4/24 سانتی‌متر و همچنین حدأقل و حدأکثر وزن آن‌ها به&shy;ترتیب 2/0 و 8/78 گرم بود. میزان </span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="background:white"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">a</span></span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="background:white"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">برابر 0047/0، میزان </span></span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="background:white"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">b</span></span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="background:white"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">برابر با 121/3 محاسبه شد. الگوی</span></span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> رشد آلومتریک مثبت به&shy;دست آمد. شاخص عملکرد رشد فای‌مونرو</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">057/0 محاسبه شد. فاکتورهای رشد فون‌برتالانفی به&shy;ترتیب برای نر، ماده و هر دو جنس به&shy;</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">ترتیب (42/23</span></span></span> <span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">L&infin;</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">سانتی‌متر،</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">62/0 </span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">K</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> در سال و 279/0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">t0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=-</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">)، (12/</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">25</span></span></span> <span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">L&infin;</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">سانتی‌متر،</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">41/0 </span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">K</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> در سال و 421/0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">t0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=-</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">) 0 (25/25</span></span></span> <span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">L&infin;</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">سانتی‌متر،</span></span></span> <span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">48/ </span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">K</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> در سال و 37/0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">t0</span></span></span><span dir="LTR" lang="EN-NZ" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">=-</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">) به&shy;دست</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:">&shy;آمد. میزان </span></span></span><span dir="LTR" style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">w</span></span></span><span lang="FA" style="font-size:10.0pt"><span style="line-height:150%"><span b="" nazanin="" style="font-family:"> نزدیک به 563/17 گرم برآورد شد. میزان مرگ میر کل، طبیعی و صیادی به&shy;ترتیب (138/2 ،118/1، 256/3) درسال محاسبه&shy;گردید. همچنین ضریب بهره‌برداری 656/0به دست آمد و بیان‌گر این است که ذخیره موجود زیر فشار صیادی است.</span></span></span></span></span></span></span></span></span></span></span><br> &nbsp; <span style="font-size:11pt"><span style="line-height:150%"><span style="tab-stops:right 320.25pt 369.9pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:10.0pt"><span style="line-height:150%"><span new="" roman="" style="font-family:" times="">This study aimed to investigate the growth and mortality parameters rates and the reproductive biology of <i>T. vitrirostris</i> on Hormozgan inshore waters (the northern Persian Gulf). 1211 specimens were selected by Stake-Nets, shrimp trawling fisheries, Trichiuridae in Qeshm Island located in the Persian Gulf during January 2010 to December 2010. 260 specimens was obtained to determine the sex ratio. growth parameters obtained from otolith ageing and length frequency analyses with FISAT and ELEFAN1method agreed well. The minimum and maximum length of the fish specimens were calculated 2/3 cm and 24.4 cm and length-weight 0.2g and 78.8 g, respectively. The <b>a </b>value of the length-weight relationship was obtained 0.0047 and for <b>b </b>was 3.121 that showed positive allometric growth. Estimated Von Bertalanffy growth parameter values were (L&infin; = 23.42 cm, K = 0.62 and t0 = -0.279 year) and (L&infin; = 25.12 cm, K = 0.41 and t0 = -0.421 year) for male and female, respectively. Also infinity weights (W) were estimated nearly to 17.563. The annual total mortality, fishing mortality, and natural mortality coefficients were estimated 2.138, 1.118 and 3.256 per year, respectively. Also, the exploitation coefficient 0.656 was obtained, which indicates that the stock was not overexploited. </span></span></span></span></span></span></span></span><br> &nbsp; لچه دهان نارنجی, رشد, مرگ‌ومیر,ترال ˓استان هرمزگان T. vitrirostris, growth, mortality, trawl, Hormozgan province 21 30 http://jair.gonbad.ac.ir/browse.php?a_code=A-10-1076-1&slc_lang=fa&sid=1 Najmeh Haghighatjou نجمه حقیقت جو naj.haghighatjou@gmail.com 10031947532846009559 10031947532846009559 Yes Fishing and Exploitation Department, College of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran دانشگاه علوم کشاورزی و منابع طبیعی گرگان Rahman Patimar رحمان پاتیمار rpatimar@gonbad.ac.ir 10031947532846009560 10031947532846009560 No Department of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavus University, Gonbad Kavus, Iran گروه شیلات، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبدکاووس، ایران Saeed Gorgin سعید گرگین sgorgin@gau.ac.ir 10031947532846009561 10031947532846009561 No Fishing and Exploitation Department, College of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran دانشگاه علوم کشاورزی و منابع طبیعی گرگان Rasoul Ghorbani رسول قربانی rasulghorbani@gmail.com 10031947532846009562 10031947532846009562 No Gorgan University of Agricultural Sciences and Natural Resources دانشگاه علوم کشاورزی و منابع طبیعی گرگان ٍEric Gilman اریک گیلمن ericlgilman@gmail.com 10031947532846009563 10031947532846009563 No The Safina Center, USA مرکز سافینا. آمریکا Reza Abbaspour Naderi رضا عباسپورنادری r_naderimail@yahoo.com 10031947532846009564 10031947532846009564 No Capture Fisheries Department, Iran Fisheries Organization, Tehran, Iran اداره کل شیلات سازمان شیلات ایران، تهران، ایران Hadi Raeisi هادی رییسی raeisi@gonbad.ac.ir 10031947532846009565 10031947532846009565 No Department of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavus University, Gonbad Kavus, Iran گروه شیلات، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبدکاووس، گنبدکاووس، ایران Shokrollah Farrukhbin شکرالله فرخ بین farrokbin@gmail.com 10031947532846009566 10031947532846009566 No Agricultural and Natural Resources Research Center, Bushehr, Iran مرکز تحقیقات کشاورزی و منابع طبیعی، بوشهر، ایران