Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the chaty domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the redux-framework domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the redux-framework domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wp-plugin-hostgator domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wp-plugin-hostgator domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home1/express/public_html/wp-includes/functions.php on line 6131

Deprecated: Return type of Recursive_ArrayAccess::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home1/express/public_html/wp-content/plugins/youtube-showcase/assets/ext/emd-session/includes/class-recursive-arrayaccess.php on line 76

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لماذا يهاجم القرش الإنسان؟.. باحث مصري يكشف سببين - Algerian Express

لماذا يهاجم القرش الإنسان؟.. باحث مصري يكشف سببين


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في حياة كل منا أولويات خاصة، ومع اختلاف المهام الموكلة لكل إنسان تتحدد أولوياته. أحمد شوقي الباحث في علوم البحار وعضو المكتب الفني لوزارة البيئة المصرية، قرر منذ مدة التخلي عن بدلته الأنيقة، ليحظى بأسعد أوقاته وهو يرتدي بدلة الغوص.

شوقي الحاصل على الدكتوراة في البيولوجيا البحرية، يتصدر قائمة أولوياته، حسب تأكيده لموقع “سكاي نيوز عربية”، تتبع حركة القروش وعروس البحر، مؤكدًا أنه قام بنشر عدة أبحاث علمية حول أنواع أسماك القرش في مصر، موضحًا أن المياه المصرية يسكنها نحو 30 نوعًا من أسماك القرش، أشرسها القرش النمر والقرش ماكو.

وإلى جانب ذلك، يهتم أيضًا بدراسة حركة الدولفين وعروس البحر.
مهمة خاصة

يقول شوقي لموقع “سكاي نيوز عربية” “إن صوره مع القروش على عكس ما يتخيل البعض تجعله في منتهى السعادة، يتعامل معها بطريقة معينة تقيه من الخطر، حيث يحاول أن يزرع على القرش جهاز تتبع لا يتوفر عادة استخدامه إلا عندما يتم اصطياد القرش فيتم تركيب الجهاز، ويمكن للمتتبع بعدها أن يعرف طريقه أينما ذهب والمجموعات التي تحيطه، وبالتالي يتم إصدار قرارات السماح بالغوص من عدمه”.

يشير شوقي إلى أن أماكن تجمع القروش في مصر أبرزها في البحر الأحمر خاصة منطقة “الفنستون” التي يشار إليها دائمًا ببيت القرش، إلى جانب منطقة سان جون جنوب البحر الأحمر، جزيرة أم قمر، منطقة شعاب كارلوس شمال البحر الأحمر، منطقة عرق سمية حول جزيرة الجفتون الصغير، جزيرة أبو رمادة، منطقة أبو الكيفان بسفاجا، جزر الأخوين، الروكي جنوب البحر الأحمر، وشعاب شرم الشيخ”.

حسب دراسة شوقي، فإن القروش الموجودة في مصر، تزداد شراستها في الفترة ما بين شهري يونيو إلى ديسمبر، حيث تهرب أنثى القرش من الذكور، وتنزوي في مناطق الفنستون تحديدًا أشهر أماكن تجمع القروش في مصر، وتضع بيضها في هذا المكان ثم تعود في هذه الفترة للاطمئنان وهي عادة المرحلة التي تشهد هجومها على بعض السائحين.

ويؤكد شوقي أن هناك سببين لهجوم القرش على الإنسان، أولهما من القرش نفسه، حيث يفشل في التعرف على فريسته فيقوم بالهجوم، والأمر الثاني سلوك بشري خاطئ من الإنسان في استخدام أسماك أو روائح أثناء الغطس تؤدي إلى استنفار القرش وتحفيزه على الهجوم على الإنسان.

ويوضح شوقي أن سمكة القرش تتعرض للصيد الجائر بشكل كبير في الدول الأكثر تقدمًا، على الرغم من انحسار أعدادها خلال الفترة الأخيرة، حيث يتم استخدامها في الطعام بأشكاله المختلفة، وهو ما جعل بعض الصيادين يلجؤون لصيد القرش وقص زعانفه ثم رميه في البحر، وبالتالي عدم تمكن السلطات البيئة في التعرف على نوع الزعنفة.

ويتطرق إلى أبرز حادثة لأسماك القرش في مصر، حيث تم إلقاء القبض على مجموعة من الصيادين في محيط المياه المصرية تمكنوا من اصطياد 71 سمكة قرش تبلغ قيمتها نحو 37 مليون دولار، وعلى الفور تم إلقاء القبض عليهم، وبالفعل ساهم ذلك في تقنين الصيد الجائر.

عروس البحر

تمثل “عروس البحر” كائنا أسطوريا لكثير من الناس، لكن لشوقي عشقا خاصا لهذا المخلوق الذي يقوم بمسح البحر كل فترة لرصده وتصويره للناس، وعلى عكس الصورة الذهنية لهذه السمكة فإنها مختلفة تمامًا في عمق البحار عن التصوير السينمائي الذي صورها بنصف أنثى نصف سمكة.

ويوضح أنه يتم استخدام تقنيات القياس بالليزر تحت الماء، إسقاط نقطتي ليزر باللون الأخضر، المسافة بينهما 20 سم “الأسهم البيضاء”، بعدها يمكن قياس عرض الخدوش الناتجة من أنياب عروس بحر أخرى “السهم الأسود”، والذي يعبر عن المسافة بين أنياب عروس البحر، وبالتالي يتم التعرف على تركيب تجمعات عرائس البحر فى المنطقة، وما يحدث بينها من سلوكيات اجتماعية.

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