Search the SPREP Catalogue

27 result(s) found.

Sort by

Publication Year
Sort results by
Created
Sort results by
Updated
Sort results by

You searched for

Tags / Keywords marine invasive species
X

Workshop on management of invasive species in Marine Protected Areas, Matautu, Samoa 12-15 March 2007 : meeting report

Island and Ocean Ecosystems, BRB

Available Online

Regional Office for Oceania and Global Marine Programme

The intentional and unintentional transfer of species from one water body to another around the world has boomed in recent decades. Many seas and regions have been invaded by a high number of non-native species. Some of these species thrive in their new habitats, out-competing native species and changing ecosystems, sometimes dramatically. Alien Invasive Species (AIS) are currently perceived to be one of the primary threats to biological diversity. Throughout the world, marine resource managers are in the process of setting up marine protected areas (MPAs), sanctuaries, estuarine reserves and fishing closures as a means to preserve our marine biodiversity and living resources. Given the high ecological value of these areas, the efforts undertaken and the funds disbursed to conserve it, biodiversity loss in such places is even more dramatic than in others.

Invaders from the sea

IMO & BBC

Addressing shipping related marine pollution in the Pacific Islands : the invasive marine species aspect

Island and Ocean Ecosystems, Waste Management and Pollution Control, BRB

Available Online

Nawadra, Sefanaia

The Pacific islands have an extremely rich maritime heritage. The islands themselves were first populated by what are arguably the greatest mariners in human history. In pie-European times the Pacific islandersnavigated wooden canoes held together with coconut fibre across thousands of miles of open ocean, with nothing but the stars and their intimate knowledge of the sea to aid navigation. Today, this seafaring tradition is continued, with several island countries, such as Kiribati and Tuvalu, being suppliers of seamento the regional and global shipping fleet.

Border control for potential aquatic weeds, stage 1 : weed risk model / P.D. Champion and J.S. Clayton

Available Online

Champion, P.D.

Clayton, J.S.

This report is the first stage in a three-stage development of a Border Control Programme for aquatic plants that have the potential to become ecological weeds in New Zealand. A large number of freshwater aquatic plants have already been introduced and are naturalised in New Zealand, impacting on most waterbodies within this country. There are many additional potential weed species reported as present in New Zealand, but not naturalised, and an even greater number not recorded as introduced here. Some of these species could pose an even greater threat to our aquatic environment than those weeds currently naturalised. A range of tables is presented to illustrate the array of new aquatic species that are already believed to be in New Zealand or that could enter and become established. Possible entry pathways identified in this report include natural spread from wind- and bird-dispersed seed, introduction of ornamental, culinary and medicinal herbs, contaminants in other plants and produce, mislabelled plants, and various types of illegal imports. Existing weed risk assessment models fail to adequately separate aquatic plants with different levels of impact. A new model is presented, tailored to the impacts of aquatic species. Tables are presented to demonstrate the improved system of ranking risks for aquatic plant species. A combination of assessments for weediness and the risk of entry into New Zealand will determine the potential threat of each species, allowing a comparison with existing weed species and other species not yet naturalised or introduced here. The greatest risk is perceived to be posed by some species reported to be present, but not yet naturalised in New Zealand, followed by species not reported here, but traded overseas with the potential to be brought here illegally.

Solomon Islands national ocean policy. November 2018.

Available Online

This national ocean policy aims to protect and increase the value of resources of ocean and also the inherent value of the marine ecosystems and species upon which that wealth relies on.

Seaweeds of American Samoa

Available Online

Posa A. Skelton

This study provides the latest, up-to-date information on the diversity of marine plants (algae and seagrasses) of American Samoa. A general introduction to marine plants is provided, with observations on the flora of the islands. An illustrated guide to 67 macroalgae and seagrasses is provided in this report. The surveys covered 26 sites from four inhabited islands Tutuila, Aunuu, Ofu and Olosega and two smaller uninhabited islands Nuutele and Nuusilaelae. The habitats surveyed include subtidal sites to 20-m depth, inter tidal and the spray or splash zone. It also included surveys of relatively pristine coral reefs as well as high impact areas such as the inner Pago Pago Harbor. Two separate surveys, both over a two-week period in October 2002 and September 2003 were carried out and the final results are reported herein. A total of 635 specimens were analyzed and 239 algal and seagrass species were enumerated. The red algae (Rhodophyta) had the highest number of species with 133 identified. The green algae (Chlorophyta) had 60 species, the brown algae (Phaeophyta) had 29, and the blue-green (Cyanophyta) 27; only two seagrass species were found. This study showed that the flora of American Samoa is diverse, and that what is recorded reflects about 60% of the potential flora. The most diverse site was Utulei with 56 species; a site located near the Pago Pago Harbor entrance. Other notable diverse sites include the Fagatele National Marine Sanctuary with 50 species, Fagasa (44), Mafafa (36), Aua (32), and Onososopo and Fagaalu both with 31 species. The least diverse sites were the docks and the smaller Nuusilaelae Island. This is attributed to the limited collections from these sites for safety reasons. There are no substantiated records of endemic algae or seagrasses from American Samoa. Two species recorded by the American phycologist, William Setchell in 1924 (Sargassum fonanonense and Sargassum anapense) need more studies to verify their endemicity, as similar species have been recorded in the neighboring Western Samoa islands, where they are known under different names. Four algae are considered to be recently introduced into the American Samoan flora. Halymenia durvillei and Caulerpa serrulata may have been introduced from Apia Harbor, Western Samoa, whereas Grateloupia filicina and Codium mamillosum may have been introduced from places beyond the Archipelago. Although only single specimens were collected for the latter two algae, it is prudent that monitoring and surveys must be maintained to keep abreast of any potential impacts. The flora of American Samoa fits in with the biogeographic theory of decreasing diversity away from the Indo-Pacific centre of biodiversity. The 222 species of red, green and brown algae is well above those of the Cook Islands (67) and the Easter Islands (134), but below that of French Polynesia (308). The reason for this disparity is attributed to the intensity of collections. The diversity of American Samoan seagrasses and algae are better known than those of neighboring island countries. To allow for a continuous buildup and maintenance of this knowledge the following observations and recommendations are made.

Best Practice for the Management of Introduced Marine Pests: a Review

Available Online

Hilliard, Robert

The Secretariat of the Global Invasive Species Programme (GISP) commissioned URS Australia Pty Ltd (URS) on 1 December 2003 to compile and briefly review literature and material available globally on best practice for the management of introduced marine pests. To help achieve this goal, URS consulted with a range of bioinvasion managers and researchers to locate recent published and non-published information from various published, non-published and internet sources.

www.sprep.org © 2021 - 2024. All rights reserved