Creating Legal Space for Community-based Fisheries and Customary Marine Tenure in the Pacific: Issues and Opportunities

The legal environment within which community-based fisheries management (CBFM) will function should be examined to determine whether it supports or will need necessary enhancement to support the implementation of CBFM. The question as to whether CBFM is legally sustainable must be asked with regard to the whole legal framework of the State – from fundamental laws, such as the constitution, to subsidiary legislation. Amendments to existing legislation or new legislation may be necessary to implement CBFM. There is no blueprint for a CBFM legal framework what number of rights with respect to fish resources should be accorded and what should be the level of participation by the local community. It is important, however, to ensure that the constitutionality of all these aspects is ascertained, and to ensure that enabling legislation for CBFM consider the following issues: security, exclusivity and permanence of rights vested; flexibility of its provisions so as to allow states to exercise choices that reflect their unique needs, conditions and aspirations for CBFM; and the way CBFM harmonizes with the overall fisheries management legal framework. Attaining the right balance in the CBFM legal framework, however, is difficult and depends largely on local circumstances. There is much interest in using customary marine tenure (CMT) as a basis for CBFM in the Pacific Island Countries (PICs). The laws of PICs lend general support to the use of CMT or tradition in fisheries management. Still, only modest efforts in the use of CMT-based community fisheries management in the PICs are observed. Further legislative action can enhance CMT use in community fisheries management. Broad lessons can be drawn from the experiences of some PICs in legislating on CMT or certain of its aspects to enhance CMT use. Government commitment to CBFM generally, and for the role of CMT in the CBFM context with support from interested entities and stakeholders including communities, will complement efforts for promoting sustainable utilization of fisheries resources and improved livelihoods in the PICs. Keywords: community-based fisheries management, customary marine tenure, fisheries legislation, legal frameworks, Pacific Island Countries

Circulating levels of reactive oxygen species in patients with nonproliferative diabetic retinopathy and the influence of antioxidant supplementation: 6-month follow-up

The aim was to evaluate circulating levels of reactive oxygen species (ROS) and changes in central macular thickness (CMT) in patients with nonproliferative diabetic retinopathy (NPDR) after antioxidant supplementation. Materials and Methods: A total of 68 patients (68 eyes) with NPDR were enrolled. Patients were randomly divided into two groups: Treated with antioxidant supplement (Group A) and untreated control group (Group B). Each tablet, for oral administration, containing pycnogenol 50 mg, Vitamin E 30 mg and coenzyme Q10 20 mg. CMT and free oxygen radical test (FORT) were analyzed at baseline (T0), 3 (T1) and 6 (T2) months in both groups. Results: In Group A, FORT levels and CMT were significantly reduced over time (P < 0.001 for both). In Group B, FORT levels were increased (P < 0.001) and CMT did not vary significantly (P = 0.81) over 3 time points. Conclusions: This is the first study showing the reduction of ROS levels in patients with NPDR thanks to antioxidant therapy. Moreover, our findings have suggested also an influence on retinal thickness

Intravitreal injection of Ozurdex(®) implant in patients with persistent diabetic macular edema, with six-month follow-up

AIM: To evaluate the efficacy of intravitreal dexamethasone injections in diabetic macular edema (DME). METHODS: A 700 μg slow-release intravitreal dexamethasone implant (Ozurdex®) was placed in the vitreal cavity of 17 patients (19 eyes) affected with persistent DME. Best corrected visual acuity (BCVA) was assessed through Early Treatment Diabetic Retinopathy Study (ETDRS). Central macular thickness (CMT) was measured by spectral-domain optical coherence tomography. BCVA and CMT examinations were carried out at baseline (T0) and repeated after three days, one month (T1), three months (T3), four months (T4), and six months (T6) post injection. RESULTS: Dexamethasone implant induced an improvement in ETDRS at T1, T3, T4, and T6 post injection. CMT was reduced at T1, T3, and T4, while at T6, CMT values were not statistically different from baseline. No complications were observed during the follow-up. CONCLUSION: Our data suggest that dexamethasone implant is effective in reducing DME symptoms within a six-month frame

Chemical and rheological aspects of gel formation in the California Mastitis Test

The rheological properties of the CMT gel were analysed. Data are presented to demonstrate that the gel is a non-homogenous, visco-elastic, non-Newtonian fluid with rheopectic, and rheodestructive behaviour. The fundamental chemistry of the CMT is reviewed and a modified theory of gel formation is presented. The implications of the rheological properties and modified theory of gel formation for an automatic sensor are discussed