Which trophic level represents maximum
Which trophic level represents maximum concentration of pesticides by biological magnification?
जैविक आवर्धन द्वारा पीड़कनाशियों की अधिकतम सांद्रता किस पोषण स्तर में पाई जाती है?
Detailed Solution & Logic
Tertiary Consumer/ तृतीयक उपभोक्ता
📘 Explanation
Biological magnification (Biomagnification) is the process in which the concentration of harmful substances like pesticides increases at each successive trophic level of a food chain.
Producers absorb small amounts of pesticides from soil or water.
Primary consumers eat producers and accumulate more toxins.
Secondary consumers eat primary consumers, increasing the concentration further.
Tertiary consumers (top carnivores) receive the highest concentration because toxins accumulate and are not easily broken down or excreted.
👉 Therefore, the maximum concentration of pesticides is found at the tertiary consumer level.
📗 व्याख्या
जैविक आवर्धन वह प्रक्रिया है जिसमें खाद्य श्रृंखला के प्रत्येक उच्च पोषण स्तर पर पीड़कनाशियों या विषैले पदार्थों की मात्रा बढ़ती जाती है।
उत्पादक मिट्टी या जल से थोड़ी मात्रा में विषैले पदार्थ लेते हैं।
प्राथमिक उपभोक्ता इन्हें खाकर अधिक मात्रा जमा कर लेते हैं।
द्वितीयक उपभोक्ता में इसकी मात्रा और बढ़ जाती है।
तृतीयक उपभोक्ता (शीर्ष मांसाहारी) में इन विषैले पदार्थों की मात्रा सबसे अधिक होती है।
👉 इसलिए पीड़कनाशियों की अधिकतम सांद्रता तृतीयक उपभोक्ता में पाई जाती है।
⭐ Extra Facts / अतिरिक्त तथ्य
🔹 English
Biomagnification commonly involves chemicals like DDT and mercury.
Top predators such as eagles and large fish are most affected.
It can cause reproductive failure and nervous system damage.
🔹 Hindi
जैविक आवर्धन में DDT और पारा (Mercury) जैसे रसायन शामिल होते हैं।
खाद्य श्रृंखला के शीर्ष जीव सबसे अधिक प्रभावित होते हैं।
इससे प्रजनन क्षमता और तंत्रिका तंत्र पर बुरा प्रभाव पड़ता है।
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