HISTORY OF SEA TURTLE POPULATIONS IN THE SULTANATE Of OMAN

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HISTORY OF SEA TURTLE POPULATIONS IN THE SULTANATE Of OMAN السلاحف البحرية في سلطنة عمان Presented By Ali Al Kiuymi Director General of Nature Conservation Ministry of Regional Municipalities, Environment & Water Resources 2006 تقديم علي بن عامر الكيومي مدير عام صون الطبيعة و الحياة الفطرية وزارة البلديات الاقليمية و البيئة و موارد المياه 2006

يوجد في سلطنة عمان خمسة انواع من السلاحف البحرية FIVE SEA TURTLE SPECIES IN THE SULTANATE يوجد في سلطنة عمان خمسة انواع من السلاحف البحرية Loggerhead turtle السلحفاة الريماني Green turtle السلحفاة الخضراء Hawksbill turtle السلحفاة الشرفاف Olive Ridley turtle السلحفاة الزيتونية Leatherback turtle السلحفاة النملة

Feeding Grounds for Sea Turtles in Arabia The coasts off Oman are the only area where 5 species can be found تعتبر السواحل العمانية المكان الوحيد الذي تتغذى فيه خمس انواع من السلاحف البحرية

Sea Turtles Major Diet Items الاغذية الرئيسية للسلاحف البحرية Greens الخضراء Loggerheads الريماني Hawksbills الشرفاف Olives الزيتونية Leatherbacks النملة

The coasts off Oman are the only area where 4 species can be found Nesting Grounds for Sea Turtles in Arabia اماكن التعشيش للسلاحف البحرية في الجزيرة العربية The coasts off Oman are the only area where 4 species can be found Leatherbacks nest in India (not in Arabia), although they also feed in Arabia تعتبر السواحل العمانية المكان الوحيد الذي تعشش فيه اربعة انواع من السلاحف البحرية تعشش السلحفاة النملة في الهند

Nesting & Feeding Grounds for Sea Turtles in the Sultanate of Oman اماكن تغذية و تعشيش السلاحف البحرية في سلطنة عمان H - Hawksbills G – Greens L – Loggerheads O – Olives ! Population of world-wide importance ! اعداد ذات اهمية عالمية

خطوط هجرة السلاحف بين اماكن التغذية و التعشيش في Migration Routes Between Feedings & Nesting Grounds in the NW Indian Ocean Based on Tag Recovery خطوط هجرة السلاحف بين اماكن التغذية و التعشيش في شمال غرب المحيط الهندي بناء على ارقام السلاحف المرتجعة الريمانيLoggerheads Greens الخضراء

ترقيم السلاحف البحرية Tagging Sea Turtles Rear flippers in leatherbacks only Front flippers in other turtles

Aspects of Turtle Nesting Beaches بعض جوانب سواحل التعشيش Nesting Cycle High Density Population Turtle Track & Body Pit

Sea Turtles Sex Differentiation الاختلافات الجنسية للسلاحف البحرية Green Turtle Chelonia mydas Male ذكر Female انثى

Major Threats to Sea Turtle Populations الاخطار الرئيسية التي تهدد السلاحف Predation on eggs, hatchlings, juveniles and adults الافتراس على البيض ، صغار السلاحف ، السلاحف البالغة Parasitism/Diseases الطفيليات / الامراض Human Impacts التأثير البشري Complex Oceanographic Episodic Events الكوارث البحرية المعقدة Harmful microalgae

Loggerheads on Masirah, 1978-1990 main results نتائج تعداد السلاحف الريمانية بجزيرة مصيرة ما بين 1978 - 1990 Nesting on NE Masirah Island 1. تعشش على السواحل الشمالية الشرقية من جزيرة مصيرة . Nesting Season: May-July . 2. موسم التعشيش : مايو – يوليو 30,000 annual nesting females 3. تعشش 30.000 انثى سنويا . Major predators on nesting grounds: seagulls, terrestrial mammals 4. الكائنات الحية المفترسة على شواطئ التعشيش.

Hawksbills on the Dimaniyat Islands, 1984-85, 1999-2001 main results: نتائج تعداد سلاحف الشرفاف بجزيرة الديمانيات ما بين 1984- 1985 و 1999-2001 Nesting mainly on D1, D4 and D9 Islands 1. تعشش غالبا على الجزر د1 ، د4 ، د9. Nesting Season: January-July 2. موسم التعشيش : يناير الى يوليو 3. At least 300 annual nesting females, nesting on 1.5 Km of beaches 3. ما لا يقل عن 300 سلحفاة تعشش سنويا على 1.5 كيلومتر من الشواطئ Major predators: seabirds, birds of prey, sharks 4. الكائنات الحية المفترسة: الطيور البحرية ، الطيور المفترسة ، اسماك القرش

Green turtles at Ras Al Hadd, 1978-2004 main results نتائج تعداد السلاحف الخضراء برأس الحد ما بين 1978 - 2004 Nesting mainly at Ras Al Hadd and Ras Al Jinz beaches 1. تعشش غالبا بشواطئ رأس الحد و رأس الجنز All year round, peaking between July and October 2. موسم التعشيش : طوال العام و تزداد بين شهري يوليو و اكتوبر At least between 13,000-20,000 annual nesting females 3. يرد الى هذه الشواطئ ما لا يقل عن 13.000 – 20.000 انثى سنويا Major predators: seagulls, ghost crabs, foxes 4. اهم الكائنات الحية المفترسة : الثعالب ، سرطان البحر ، النورس

Thank you for your attention شكرا لحسن استماعكم Green turtle Chelonia mydas in Sur in 2002

Green Turtle Chelonia mydas (phylum: Chordata; order: Testudines; family Cheloniidae)