Crabs and lobsters

Information relating to the aquaculture of crabs, lobsters and other non-shrimp crustaceans.

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Aquaculture Asia Magazine, July-September 2025

In this issue:

  • From office to field: The role of women in Saudi Arabia’s small-scale aquaculture and fisheries sector
  • Farming of orange mud crab in the Indian Sundarbans: Opportunities and challenges
  • Seed production of giant freshwater prawn in brackishwater ponds in Purba Medinipur, West Bengal
  • AI and IoT (AIoT): The New Wave in Fish Farming
  • NACA Newsletter

Farming of orange mud crab in the Indian Sundarbans: Opportunities and challenges

Orange mud crab (Scylla olivacea) has emerged as the main mud crab for aquaculture in the Sundarbans, supplying India’s live-crab export trade. This article explains why: faster maturation at smaller sizes, strong demand for gravid females, and practical fattening systems using HDPE boxes or seasonal pond units with tied claws. It summarises how farmers source crabs, feed with trash fish, grade by size and reproductive status, and move product through local traders to export hubs.

DeepBlue Aquaculture: Phytogenics Approach to Improve Mud Crab Growth Performance

DeepBlue Aquaculture, the world’s largest soft-shell crab operation, is pioneering the use of phytogenics to improve mud crab growth performance. Soft-shell crab farming is traditionally labor-intensive and low-yield, making it difficult to scale. Their proprietary plant-based additive, PhytoEcR, boosts mud crab growth and moulting rate—delivering up to 20% higher weight gain after 45–60 days, with a 40% increase in moulting rate and 35% faster moulting compared to control groups. PhytoEcR is now moving into commercial-scale testing, aligning with global trends in phytogenic feed solutions to enhance productivity and sustainability. This pitch was presented by Andrew Ng of Deep Blue aquaculture.

AQUADAPT: Nature-based solutions in Philippines

The project conducted a preliminary survey of the effectiveness of various types of nature-based solution (NbS) in use in the Philippines that contribute to climate change resilience by enabling off-grid farm operations and reducing reliance on costly fossil fuels, renewable materials and improved designs that enhance efficiency. Aquaculture enterprises were assessed for this project based on the NbS they utilised and the potential benefits they offer in mitigating climate change impacts and enhancing production systems.

Based on BFAR Regional Field Office Submissions, 50 aquaculture innovations nationwide have been identified to date. The list will be extended and screened as further regions report, in cooperation with the BFAR National Research Centers.

Report of the 23rd Asia Regional Advisory Group on Aquatic Animal Health

This report summarises the proceedings of the 23rd meeting of the Regional Advisory Group on Aquatic Animal Health, held 14-15 November 2024 by video conference. The role of the group is to review trends in disease and emerging threats in the region, identify developments in global disease issues and standards, to evaluate the Quarterly Aquatic Animal Disease Reporting Program and to provide guidance on regional strategies to improve aquatic animal health management.

NACA Newsletter, Vol. XXXX, January-March 2025

In this issue:

  • FAO programme supports national innovation and investment plans for aquaculture transformation.
  • 14th Asian Fisheries Forum, 12-15 February 2025 register now!
  • Saudi International Marine Exhibition (SIMEC) 3-5 February 2025, Riyadh.
  • Workshop on Sustainable Brine Shrimp Artemia Cultivation, 17 February, Tashkent.
  • Status, technological innovations, and industry development needs of mud crab (Scylla spp.) aquaculture.
  • Global Seaweed: New and Emerging Markets Report 2023.

Status, technological innovations, and industry development needs of mud crab (Scylla spp.) aquaculture

This document contains the proceedings of the technical workshop entitled “Status, technological innovations, and industry development needs of mud crab (Scylla spp.) aquaculture” held from 27 to 30 November 2023, in Singapore. It provides a summary of the workshop, highlighting key opportunities and challenges in the development of mud crab aquaculture, along with a series of follow-up actions and recommendations to support growth in the sector. It also includes a brief global overview of the status of mud crab aquaculture development as well as reviews detailing the development status in major producing countries. Additionally, the document features technical reports on advancements in hatchery-produced seedstock, farming systems for both soft-shell and hard-shell crabs, value chains, marketing, and topics related to management, conservation, transportation, and the future quality and handling standards of the industry.

Reported Aquatic Animal Diseases in the Asia-Pacific Region during the Second Quarter of 2024

With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021 NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the second quarter of 2024 and the original and updated reports can be accessed from the QAAD page.

14th Asian fisheries and Aquaculture Forum: Early bird closes 10 November

The 14th Asian Fisheries and Aquaculture Forum (14AFAF) will be held from 12-15 February 2025 in New Delhi, India. Submission of abstracts has been extended until 5 November, and early bird registration closes on 10 November, so get in quick!

The forum is a scientific meeting organised by the Asian Fisheries Society (AFS) once every three years to understand the global trends and address issues and challenges faced by the fisheries and aquaculture sector. The main purpose of this Forum is to provide an international platform for eminent scientists, young researchers, and other stakeholders across the globe to share their research experiences and innovative ideas. By facilitating the exchange of diverse range of knowledge and expertise, the Forum with the Theme ‘Greening the Blue Growth in Asia-Pacific’ aims to address key issues towards developing sustainable fisheries and aquaculture.

Reported Aquatic Animal Diseases in the Asia-Pacific Region during the Third Quarter of 2023

With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021, and in lieu of the published QAAD Reports (last issue published was 4th quarter of 2020), NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the third quarter of 2023 and the original and updated reports can be accessed from the QAAD page

Reported Aquatic Animal Diseases in the Asia-Pacific Region during the Fourth Quarter of 2022

With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021, and in lieu of the published QAAD Reports (last issue published was 4th quarter of 2020), NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region. This report covers the fourth quarter of 2022 and the original and updated reports can be accessed from the QAAD page

13th Asia-Pacific Marine Biotechnology Conference, 2-6 October 2023, Australia

The 13th APMBC and 5th ANZMBS conference are combining to engage marine biotechnologists, industry, investors, and policy makers in current marine biotechnology research, and industry development in the Asia-Pacific region. The conference will be held from 2-6 October 2023 in Adelaide, Australia. This provides a great opportunity to participate in the growth and future development of the marine biotechnology industry in the region and globally. A key objective of the joint Conference is to encourage academic-industry partnerships across the region. Abstract submissions and early bird registrations are now open!

Global Seafood Trade Fair 28-30 June, Guangzhou, China

In June, China will open its doors to the world through the Global Seafood Fair. With over 50,000 visitors and a strong buyer presence, the fair is an excellent opportunity for businesses to showcase their products. The event will feature over 1,000 exhibitors and more than 10,000 products for buyers to choose from. Attendees can also participate in several industry-focused events, including the Global Shrimp Industry Development Summit Forum, the Overseas Seafood Products Digital Trade Forum, the Tilapia Industry Chain Summit, and the China Aquatic Prepared Dishes Development Summit.

Update: 2022 Global Forum on Sustainable Development of Fisheries to be held on 13 December

Update: The forum will now be held on 13 December and and updated conference agenda is available below. Please register your attendance using the form linked below. A Zoom link will be sent to all registered participants before the meeting, thank you.

A free online forum will be organised by the Agriculture Trade Promotion Center, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, and Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, and NACA. The forum aims to strengthen international exchange and cooperation in aquatic trade, promote high-quality development of fisheries, disseminate advanced concepts, technologies, and models of aquaculture in the Asia-Pacific region and Silk Road countries, and promote the health and sustainable development of global fisheries. Participation is free but registration is required.

FAO/NACA workshop to developing a regional strategy for aquatic organism health using progressive management pathways

On 28-29 November FAO and NACA collaborated on a virtual workshop to develop a regional strategy for aquatic organism health, using a progressive management pathway for improving aquaculture biosecurity. The workshop was held under the auspices of the project “Responsible use of fisheries and aquaculture resources for sustainable development component 3: Biosecurity and health management”. The workshop involved 31 experts from 16 countries, including national focal points, FAO and NACA. The objectives of the workshop were to: Present and analyse country responses to a self-assessment survey on biosecurity and health management capacity and performance; to provide guuidance to country participants on conducting a SWOT analysis; and to prepare a detailed plan for Phase II of the initiative.

Aquaculture Asia Magazine, October-December 2022

In this issue:

Sustainable livelihood model for coastal families through seabass fingerling production: A success story; A pilot of integrated mangrove-aquaculture as a nature-based solution to mitigate climate change in West Bengal, India; Recreational fisheries in Uttarakhand; Soft-shell mud crab production for export in Purba Medinipur, West Bengal, India; Conducting artificial fertilisation, hatching and spawn development of Indian shad, Tenualosa ilisha: Pathfinding hilsa domestication; NACA Newsletter.

Soft-shell mud crab production for export in Purba Medinipur, West Bengal, India

In West Bengal wild-caught juvenile and sub-adult orange-clawed mud crabs Scylla olivacea are purchased by farms for grow out, fattening, and the production of soft-shell crab for export. This article describes the management practices for producing soft-shell mud crab at National Aqua Farm, using individual box enclosures, and their subsequent processing and packing for export. Details of the crab rearing unit are provided, along with observations of moulting cycles and post-harvest management of soft shell mud crab.

Free registration: 2022 China-ASEAN International Forum on "Sustainable Development of Fisheries and Aquaculture Under the Blue Transformation Strategy”

Ocean University of China and partners will convene the forum from 20 to 22 November 2022. The forum will cover the following: Topic 1: International talent cultivation and training;Topic 2: Science and technology innovation; Topic 3: Industrial synergy. The forum will host discussions about the implementation of the “Blue Transformation” strategy, further expansion of the space for fisheries and aquaculture, and ways of improving the production capacity of aquatic products, with the purpose of facilitating the achievement of the UN Sustainable Development Goals. Participation is free but registration is required. Registration closes on 22 October.

NACA Newsletter, Vol. XXXVII, October-December 2022

In this issue:

Training Course on Mariculture Technologies in Asia-Pacific; FAO/NACA Virtual Workshop on Aquaculture Transformation in Asia and the Pacific Region; Belt & Road Forum for International Freshwater Fishery Industry Innovation; 8th Global Conference on Gender in Aquaculture and Fisheries, 21-23 November; Reported Aquatic Animal Diseases in the Asia-Pacific Region during the First Quarter of 2022; International Training Course on Biology and Pathology of the Penaeid Shrimp 2022; Angkasa Putra inaugurated as first President of the South-East Asian Fisheries and Aquaculture Student Association; Artemia webinars: Video recordings of technical presentations available.

Register now: Free Training Course on Mariculture Technologies in Asia-Pacific

The Yellow Seas Fisheries Research Institute (YSFRI) will convene a free online Training Course on Mariculture Technologies in the Asia-Pacific Region from 19 to 23 September (please note the change of date). The course is organised by YSFRI, NACA, the Qindao Marine International Cooperation Center and the Asia-Pacific Fishery Commission. The training course will cover: Theory and technology for producing high-quality seed; New mariculture modes and technology; Nutrient regulation and feeding technology; Disease prevention and control technologies; Product processing and utilisation technologies. Applications close 5 September.