marine material spillage international oceans
In the Pacific Islands region, fish and invertebrates (specifically shellfish) fulfill important ecological roles in coastal and oceanic habitats, and many species are targeted by fisheries, making vital contributions to food security, livelihoods, government revenue and cultural heritage. This report discusses how climate change is expected to have profound effects on the status and distribution of coastal and oceanic habitats, the fish and invertebrates they support and, as a result, the productivity of fisheries and aquaculture
This report provides a review of our knowledge of the bycatches, defined as
discarded dead, from the tropical tuna purse seine fisheries of the world. The major
fishing grounds involved (eastern and western Pacific, eastern Atlantic, and western
Indian Oceans) share the gear, the ways of fishing, and the structure of the pelagic
communities. Because of that, the species taken in association with tuna schools tend
to be the same in all regions.
The Bycatch Management Information System (BMIS) focuses on bycatch mitigation and management in oceanic tuna and billfish fisheries*. It is an open resource useful for fishery managers, fishers, scientists, observers, educators and anyone with an interest in fisheries management. As a reference and educational tool, the BMIS aims to support the adoption and implementation of science-based management measures so that bycatch is managed comprehensively and sustainably.
Conservation International, GRID-Arendal and Geoscience Australia recently collaborated to produce a map of the global distribution of seafloor geomorphic features. The global seafloor geomorphic features map represents an important contribution towards the understanding of the distribution of blue habitats. Certain geomorphic feature are known to be good surrogates for biodiversity. For example, seamounts support a different suite of species to abyssal plains.
AquaMaps are computer-generated predictions of natural occurrence of marine species, based on the environmental tolerance of a given species with respect to depth, salinity, temperature, primary productivity, and its association with sea ice or coastal areas. These 'environmental envelopes' are matched against an authority file which contains respective information for the Oceans of the World. Independent knowledge such as distribution by FAO areas or bounding boxes are used to avoid mapping species in areas that contain suitable habitat, but are not occupied by the species.