13 Aug 2026 - "Daily Current Affairs" Updates

Hallaniyat Islands

WHY IN NEWS: A crude oil spill from the tanker Caroline Bezengi has raised concerns about the fragile marine ecosystem around Oman’s Hallaniyat Islands.

IN ONE LINE: Hallaniyat is a five-island archipelago off southern Oman in the Arabian Sea, notable for its rugged limestone landscape and high-value marine biodiversity.

Where are they?

• Located off the northeastern coast of Dhofar Governorate in southern Oman, in the Arabian Sea.

• Administratively part of the Wilayat Shalim and Al Hallaniyyat Islands of the Sultanate of Oman.

The island group

• The archipelago has five main islands along with smaller rocky islets: Al Hallaniyah, Al-Hasikiyah, Al-Sawda, Qarzawit and Al-Qibliyah.

• Al Hallaniyah is the largest island and is inhabited by a small resident population.

Physical geography

• The islands are mostly hilly and rugged, with only limited flat areas.

• The landscape includes rocky coasts, limestone cliffs, sandy sublittoral zones and small rocky islets.

• A prominent limestone cliff occurs on the northeastern side of the island group.

Why ecologically important?

• The surrounding marine environment includes coral habitats, seaweed beds and rocky coastal ecosystems.

• The area overlaps with the Hallaniyat Islands Key Biodiversity Area (KBA) and the Oman Arabian Sea Ecologically or Biologically Significant Marine Area (EBSA).

• It is regarded as one of the important marine biodiversity hotspots of the Arabian Sea.

Biodiversity to remember

• Shallow waters support corals, sponges, seaweeds, algae and diverse fish species.

• Important nesting ground for Loggerhead Turtle (Caretta caretta) and Green Turtle (Chelonia mydas).

• The surrounding waters also support dolphins and whales.

MEMORY LOCK

• Oman • Arabian Sea • Dhofar

• 5 main islands; Al Hallaniyah is the largest

• KBA + EBSA overlap

• Loggerhead + Green Turtle nesting

ACTIVE RECALL — answer without looking back

1. In which country and sea are the Hallaniyat Islands located?

2. Name the largest island in the group.

3. Which two biodiversity designations overlap this area?

4. Name the two turtle species that nest here.

2. E-Samudra Platform

WHY IN NEWS: The Union Minister for Ports, Shipping and Waterways inaugurated the E-Samudra platform.

IN ONE LINE: E-Samudra is the Directorate General of Shipping’s single-window digital platform for maritime services, designed around Digital First and Faceless Governance.

What is E-Samudra?

• A comprehensive digital platform intended to make maritime governance simpler, more transparent and stakeholder-centric.

• An initiative of the Directorate General of Shipping (DGS) under the Ministry of Ports, Shipping and Waterways.

• Brings services related to seafarers, shipping companies, ports and other maritime stakeholders onto one digital window.

• Marks a shift from an office-based system to an integrated digital ecosystem guided by Digital First and Faceless Governance principles.

What does the platform provide?

• Single Digital Window: one interface for maritime services and regulatory processes.

• End-to-End Digital Workflows: automates administrative procedures and reduces manual intervention.

• Online Payments: enables digital payment for maritime services.

• Real-Time Tracking: stakeholders can track applications and service requests online.

• Digital Certificates: supports issuance of certificates in digital form.

• Compliance Monitoring: strengthens regulatory monitoring and compliance.

• Stakeholder Integration: connects seafarers, shipping companies, ports, maritime training institutes and regulators on one platform.

MEMORY LOCK

• DGS → Ministry of Ports, Shipping & Waterways

• Single digital window

• Digital First + Faceless Governance

• Payments + tracking + certificates + compliance

ACTIVE RECALL — answer without looking back

1. Which organisation runs E-Samudra?

2. Which ministry does the DGS fall under?

3. What two governance principles underpin the platform?

4. Name four services/features offered by E-Samudra.

3. Russula griseopurpurata

WHY IN NEWS: A mushroom collected beneath a sal tree in Meghalaya’s Ri-Bhoi district in 2022 has been identified as a new species: Russula griseopurpurata.

IN ONE LINE: A newly identified Russula mushroom from eastern India, recognised by its greyish-purple cap and association with sal forests.

Where has it been found?

• Reported so far from Meghalaya and West Bengal.

• Typically grows singly or in small scattered groups beneath sal (Shorea robusta) trees.

Identification features

• Distinctive greyish-purple cap that develops cracks as it matures.

• Gills show characteristic forkings near the stalk, an important identifying feature.

• Like other members of the genus, it contributes to the forest fungal ecosystem and nutrient cycling.

Know the genus Russula

• Russula is one of the largest and most diverse mushroom genera, with around 2,000 species worldwide.

• More than 180 Russula species have been documented in India.

• Many species form mycorrhizal associations with trees, helping plants absorb water and nutrients from the soil.

Is it edible?

• Its edibility has not yet been established.

• A mild taste or odour is not a food-safety assessment; further studies are required before it can be considered safe for consumption.

MEMORY LOCK

• Meghalaya + West Bengal

• Found beneath sal (Shorea robusta)

• Greyish-purple cracked cap

• Russula ≈ 2,000 species worldwide; >180 documented in India

ACTIVE RECALL — answer without looking back

1. Where was the specimen first collected?

2. Which tree is closely associated with its habitat?

3. What cap colour helps identify the species?

4. What ecological relationship is common in the genus Russula?

Suckermouth Catfish

WHY IN NEWS: The Bombay Natural History Society (BNHS) has begun active removal of invasive fish species, including suckermouth catfish, from Maharashtra’s Ujani Reservoir.

IN ONE LINE: An Amazon-basin ornamental fish turned invasive alien species in India, highly resilient and damaging to native freshwater ecosystems.

Identity and origin

• A tropical fish belonging to the armoured catfish family Loricariidae.

• Classified as an invasive alien species in India.

• Native to the Amazon River basin of South America; it entered India mainly through the ornamental aquarium trade.

Natural distribution

• Naturally occurs in northeastern Brazil, the Guianas, and Trinidad and Tobago.

• Has established populations in freshwater ecosystems outside its native range, including parts of India.

How to recognise it

• Strongly arched body and a large dorsal fin with one spine and seven branched rays.

• Sucker-like mouth adapted for attaching to surfaces and scraping food.

• Locally called the “Helicopter Fish” because of its unusual appearance.

• Has an accessory breathing organ that allows it to absorb oxygen from air and survive for short periods out of water.

• Highly resilient and capable of surviving harsh environmental conditions.

Diet

• An opportunistic omnivore feeding on algae, aquatic plants, invertebrates, small fish and fish eggs.

Why is it a threat?

• Feeds on fish eggs and can reduce native fish recruitment.

• Burrows into riverbanks and earthen embankments, causing erosion and structural damage.

• Competes with native species for food and habitat.

• Its high adaptability and rapid spread can disrupt aquatic ecosystems and biodiversity.

MEMORY LOCK

• Family: Loricariidae

• Native: Amazon basin

• India entry route: ornamental aquarium trade

• “Helicopter Fish” + sucker mouth + accessory breathing organ

ACTIVE RECALL — answer without looking back

1. What is the native range of suckermouth catfish?

2. How did it mainly enter India?

3. Why is it called a suckermouth catfish?

4. Give any three ecological concerns associated with it.