In Solomon Islands, seagrass is found in almost every province. Large seagrass beds can be found in Western, Choiseul and Malaita provinces, and Lau lagoon contains the largest area of seagrass in the country. Seagrass beds are one of the most valuable habitats for Solomon Islanders. Fishers use them as fishing grounds, while farmers use them for mulching their gardens to enrich the soil and help improve their yield. Dugongs are important for keeping coastal habitats healthy, and they are a valuable source of food. In Solomon Islands, dugongs have high cultural value in many communities.
This strategy provides direction for implementation of priority actions that are necessary for achieving effective conservation and management of dugong and seagrass habitats. It complements the Fisheries Management Act 2015 and the Wildlife Protection and Management Act (2017) ensuring sustainability of the resources. It also highlights the government’s commitment to continue to collaborate with international and national partners and communities in ensuring dugongs and healthy seagrass meadows are available for the future generations.
Dugongs (Dugon dugon) are seagrass community specialists that inhabit warm coastal and island areas from tropical to subtropical Indo-West Pacific waters. They feed primarily on seagrass. In August 2018, dugongs became protected under the Fisheries Management (Prohibited Activities) Regulations 2018. It is now prohibited to fish for, retain, be in possession of, buy or sell dugongs. It is punishable through a 40,000 penalty unit fine, 4 months imprisonment, or both. Dugongs hold high cultural significance in parts of Solomon Islands.
The success of marine stocking programs hinges on releasing hatchery-produced juvenile animals into the optimal marine habitat. This study sought to identify optimal microhabitat features of coastal seagrass meadows for juvenile sea cucumbers Holothuria scabra, a species cultured widely for stock restoration, sea ranching and sea farming.
We report on a field study of L. variegata growing within one depth stratum on the south coast of Wellington, New Zealand that aimed to identify morphometric indices for L. variegata to assist with census of populations in situ. In addition, we describe seasonal patterns in growth as measured by blade elongation and seasonal patterns in fertility.
Anthropogenic nutrient enrichment has resulted in significant changes in food web structure. Although such changes have been associated with the loss of diversity and ecosystem services, little empirical work has been done to study food webs of similar systems across a nutrient enrichment gradient. We examined 11 seagrass beds along a gradient of increasing d15N of primary consumers, where d15N is used as an indicator of sewage-derived nutrients.
The coastal waters of Southeast Asian countries have some of the world's richest ecosystems characterized by extensive coral reefs and dense mangrove forests. The publication provides insights useful towards a better understanding of the seagrass ecosystem, its frailties and strengths in the face of acute coastal environment stresses. Details are also given of some common regional constraints that hamper full utilization of the seagrassecosystem and a plan of action towards sustainable development of this ecosystem's resources is proposed.
Restoration has become an integral part of coastal management as a result of seagrass habitat loss. We studied restoration of the seagrass (Halodule wrightii) near Tampa Bay, Florida. Experimental plots were established in June 2002 using four planting methods: three manually planted and one mechanically transplanted by boat. Seagrass cover was recorded at high resolution (meter scale) annually through July 2005. Natural seagrass beds were concurrently examined as reference sites.
The specific aims of our study were: (1) to determine whether cultured juvenile H. scabra released near mangrove–seagrass and coral reef flat habitats suffered different levels of predation, and (2) to identify the predators of juvenile H. scabra and determine whether cages provided short-term protection for released individuals.
Juvenile cultured sandfish (Holothuria scabra) with a mean size of 35.6 F11.4 S.D. were released on soft substrata near mangrove–seagrass and lagoonal coral reef flat habitats in the Western Province of Solomon Islands. Mean survival of H. scabra at the mangrove–seagrass sites was 95–100% 1 h after release and approximated 70% 3 days later. At the coral reef flat sites, however, mean survival was as low as 37.5% 1 h after release and total mortality occurred in two of the three releases within 48 h. Mortality of the juvenile H.