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pitch to voters on Election DayDisney expected to lay off thousands in its biggest round of cuts this yearDisney expected to lay off thousands in its biggest round of cuts this yearDisney expected to lay off thousands in its biggest round of cuts this yearAckman warns speculative trading is turning the stock market into a casinoAckman warns speculative trading is turning the stock market into a casinoAckman warns speculative trading is turning the stock market into a casinoRedMagic takes its RGB liquid-cooled gaming phone global as the 12 ProRedMagic takes its RGB liquid-cooled gaming phone global as the 12 ProRedMagic takes its RGB liquid-cooled gaming phone global as the 12 ProMalachi Jordan commits to St. John's, its first five-star recruit in 13 yearsMalachi Jordan commits to St. John's, its first five-star recruit in 13 yearsMalachi Jordan commits to St. John's, its first five-star recruit in 13 yearsSigns point to a big BioWare N7 Day celebration planned before the studio closedSigns point to a big BioWare N7 Day celebration planned before the studio closedSigns point to a big BioWare N7 Day celebration planned before the studio closedCritics of Ilhan Omar describe threats and intimidation, report saysCritics of Ilhan Omar describe threats and intimidation, report saysCritics of Ilhan Omar describe threats and intimidation, report saysGoogle app may replace its bottom bar tabs with Videos, Images and YouGoogle app may replace its bottom bar tabs with Videos, Images and YouGoogle app may replace its bottom bar tabs with Videos, Images and YouStar Wars Jedi: Survivor's final hidden secret found after three and a half yearsStar Wars Jedi: Survivor's final hidden secret found after three and a half yearsStar Wars Jedi: Survivor's final hidden secret found after three and a half yearsWar widens in the Black Sea, testing NATO's red linesWar widens in the Black Sea, testing NATO's red linesWar widens in the Black Sea, testing NATO's red linesGoogle confirms 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a potentially massive dwarf planet candidate beyond PlutoEating blueberries every day may ease depressive symptoms in older adultsEating blueberries every day may ease depressive symptoms in older adultsEating blueberries every day may ease depressive symptoms in older adultsIran warns of a 'new battlefield' after reported US strike on QeshmIran warns of a 'new battlefield' after reported US strike on QeshmIran warns of a 'new battlefield' after reported US strike on Qeshm
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Global • 2026-11-02, 13:55 GMT • ~1 min read

Old Indigenous shell practice helps young clams resist more acidic seas

مقامی آبادی کی پرانی صدف والی ترکیب نوجوان کلیمز کو تیزابی سمندر سے بچانے میں مددگار

स्वदेशी समुदायों की पुरानी शंख-प्रथा युवा क्लैम को अधिक अम्लीय समुद्र से बचाने में मददगार

Old Indigenous shell practice helps young clams resist more acidic seas

Key points

اہم نکات

मुख्य बातें

  • A long-standing Indigenous coastal practice — mixing crushed shells into beach sand — helps young clams withstand ocean acidification, new research from the University of California, Davis shows.
  • In a 90-day experiment at the Bodega Marine Laboratory, baby Pacific littleneck clams grown in sand mixed with crushed shell, known as shell hash, grew larger shells than those in plain sand.
  • The shell hash changed the chemistry of the water between sand grains, lowering its acidity, and the clams' gene activity in acidified water looked almost the same as in normal seawater.
  • یونیورسٹی آف کیلیفورنیا، ڈیوس کی نئی تحقیق کے مطابق ساحلی مقامی آبادی کی دیرینہ ترکیب — ساحل کی ریت میں پسے ہوئے صدف ملانا — نوجوان کلیمز کو سمندر کی تیزابیت برداشت کرنے میں مدد دیتی ہے۔ بوڈیگا میرین لیبارٹری میں 90 دن کے تجربے میں پسے ہوئے صدف والی ریت، جسے شیل ہیش کہتے ہیں، میں پلنے والے ننھے پیسیفک لٹل نیک کلیمز کی صدفیں سادہ ریت والوں سے بڑی ہوئیں۔ شیل ہیش نے ریت کے ذرات کے درمیان پانی کی کیمسٹری بدل کر اس کی تیزابیت کم کر دی، اور تیزابی پانی میں کلیمز کی جین سرگرمی عام سمندری پانی جیسی نظر آئی۔ محققین زور دیتے ہیں کہ یہ ترکیب صرف مقامی پناہ گاہیں بناتی ہے اور سمندر کی تیزابیت کا مکمل حل نہیں، لیکن یہ اس ترکیب کو سائنسی بنیاد دیتی ہے جو بحرالکاہل کے شمال مغرب کی مقامی برادریاں نسلوں سے استعمال کر رہی ہیں۔
  • कैलिफोर्निया विश्वविद्यालय, डेविस के नए शोध के अनुसार तटीय स्वदेशी समुदायों की पुरानी प्रथा — समुद्र तट की रेत में कुचले हुए शंख मिलाना — युवा क्लैम को समुद्र के अम्लीकरण से निपटने में मदद करती है। बोडेगा मरीन प्रयोगशाला में 90 दिन के प्रयोग में कुचले शंख वाली रेत, जिसे शेल हैश कहते हैं, में पले नन्हे पैसिफिक लिटलनेक क्लैम के खोल सादी रेत वालों से बड़े हुए। शेल हैश ने रेत के कणों के बीच के पानी की रसायन विज्ञान बदलकर उसकी अम्लता कम कर दी, और अम्लीय पानी में क्लैम की जीन गतिविधि सामान्य समुद्री पानी जैसी दिखी। शोधकर्ता ज़ोर देते हैं कि यह तरीका सिर्फ स्थानीय शरणस्थल बनाता है और समुद्र के अम्लीकरण का पूरा हल नहीं है, लेकिन यह उस प्रथा को वैज्ञानिक आधार देता है जो प्रशांत उत्तर-पश्चिम के स्वदेशी समुदाय पीढ़ियों से इस्तेमाल कर रहे हैं।

A long-standing Indigenous coastal practice — mixing crushed shells into beach sand — helps young clams withstand ocean acidification, new research from the University of California, Davis shows. In a 90-day experiment at the Bodega Marine Laboratory, baby Pacific littleneck clams grown in sand mixed with crushed shell, known as shell hash, grew larger shells than those in plain sand. The shell hash changed the chemistry of the water between sand grains, lowering its acidity, and the clams' gene activity in acidified water looked almost the same as in normal seawater. The researchers stress the trick creates only local refuges and cannot solve ocean acidification itself, but it gives scientific backing to a practice Pacific Northwest Indigenous communities have used for generations.

یونیورسٹی آف کیلیفورنیا، ڈیوس کی نئی تحقیق کے مطابق ساحلی مقامی آبادی کی دیرینہ ترکیب — ساحل کی ریت میں پسے ہوئے صدف ملانا — نوجوان کلیمز کو سمندر کی تیزابیت برداشت کرنے میں مدد دیتی ہے۔ بوڈیگا میرین لیبارٹری میں 90 دن کے تجربے میں پسے ہوئے صدف والی ریت، جسے شیل ہیش کہتے ہیں، میں پلنے والے ننھے پیسیفک لٹل نیک کلیمز کی صدفیں سادہ ریت والوں سے بڑی ہوئیں۔ شیل ہیش نے ریت کے ذرات کے درمیان پانی کی کیمسٹری بدل کر اس کی تیزابیت کم کر دی، اور تیزابی پانی میں کلیمز کی جین سرگرمی عام سمندری پانی جیسی نظر آئی۔ محققین زور دیتے ہیں کہ یہ ترکیب صرف مقامی پناہ گاہیں بناتی ہے اور سمندر کی تیزابیت کا مکمل حل نہیں، لیکن یہ اس ترکیب کو سائنسی بنیاد دیتی ہے جو بحرالکاہل کے شمال مغرب کی مقامی برادریاں نسلوں سے استعمال کر رہی ہیں۔

कैलिफोर्निया विश्वविद्यालय, डेविस के नए शोध के अनुसार तटीय स्वदेशी समुदायों की पुरानी प्रथा — समुद्र तट की रेत में कुचले हुए शंख मिलाना — युवा क्लैम को समुद्र के अम्लीकरण से निपटने में मदद करती है। बोडेगा मरीन प्रयोगशाला में 90 दिन के प्रयोग में कुचले शंख वाली रेत, जिसे शेल हैश कहते हैं, में पले नन्हे पैसिफिक लिटलनेक क्लैम के खोल सादी रेत वालों से बड़े हुए। शेल हैश ने रेत के कणों के बीच के पानी की रसायन विज्ञान बदलकर उसकी अम्लता कम कर दी, और अम्लीय पानी में क्लैम की जीन गतिविधि सामान्य समुद्री पानी जैसी दिखी। शोधकर्ता ज़ोर देते हैं कि यह तरीका सिर्फ स्थानीय शरणस्थल बनाता है और समुद्र के अम्लीकरण का पूरा हल नहीं है, लेकिन यह उस प्रथा को वैज्ञानिक आधार देता है जो प्रशांत उत्तर-पश्चिम के स्वदेशी समुदाय पीढ़ियों से इस्तेमाल कर रहे हैं।

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