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METHODS Collection of information for the Invertebrate Red Data Book began at the Conservation Monitoring Centre in early 1980. The Neotropical region includes the Caribbean Islands, Central and South America. teleius Large Blue Butterfly Scarce Large Blue Butterfly MOROCCO Margaritifera auricularia maroccana Spengler's Freshwater Mussel NETHERLANDS Doridella batava Helix pomatia Margaritifera margaritifera Hirudo medicinalis Astacus astacus Parnassius apo Uo Maculinea alcon M^. teleius Epimyrma ravouxi Roman Snail Spengler's Freshwater Mussel White-footed Crayfish Apollo Butterfly Dusky Large Blue Butterfly Scarce Large Blue Butterfly Ravoux's Slavemaker Ant SWEDEN Helix pomatia Margaritifera margaritifera Hirudo medicinalis Astacus astacus Parnassius apollo Maculinea alcon M. teleius Epimyrma ravouxi Leptothorax goesswaldi Roman Snail Spengler's Freshwater Mussel (Ex) Medicinal Leech (? K.) Labidura herculeana TRISTAN DA CUNHA ISLANDS (U. The five other phyla contain mainly parasitic forms, including species which cause human malarias and many economically important diseases of domestic animals. Heavy bottom trawling will effect all benthic fauna including sponges. Amenagement des ressources vivantes de la zone littorale tunisienne. The paragraph on scientific interest and potential value is a development of a similar paragraph in the Plant RDB. Aquatic communities are likely to be vulnerable to pollution, either thermal or toxic. Since the current market for sponges appears to be larger than can be supplied by present production efforts, it is suggested that further investigation into sponge culture is warranted. Paper prepared for Marine and Coastal Areas Workshop, Third World National Parks Congress, Bali, Indonesia, October 1982. Numerous parasites of endangered species are themselves endangered and one example, the Pygmy Hog Sucking Louse, has been given in this volume. Since these outbreaks occur mainly in coastal waters, land drainage and pollution are thought to be responsible in many cases (I'f). Dredges should be banned in those countries which still permit this fishing method (5). The relationship between protected coastal areas and marine fisheries genetic resources. Genetic diversity, even in these species, could be an asset in the future. The occurrence of red tides is restricted to certain regions, many of which coincide with oceanic upwellings. The disadvantages of the aqualung are that it is expensive and bottom time 15 is severely limited (21). In the Florida Keys, diving is not allowed and sponges are taken with a rope loop, the small poorly formed specimens being left as breeding stock. No attempt has been made to include all threatened invertebrates, and the selected examples are not necessarily those in greatest danger. However, many are essential to human life since they help the body to digest food and synthesize important vitamins. The first attempt was in Florida in 1879, and a sponge farm has been in existence on Andros Island in the Bahamas for many years. This volume contains a , set of case histories illustrating human pressures on invertebrate populations and habitats, and the range of species threatened worldwide. It is therefore not surprising that protozoa are often thought of in the context of disease. Sponges are well suited to cultivation since small cut pieces will regenerate and in the early part of this century considerable research was carried out (1,2,12,13). The selection of species for inclusion in the vertebrate RDBs is generally based on data that illustrate a decline in the range or population size of the species concerned. Non-marine species (including those from brackish water and lagoons) and threatened communities are arranged by country, marine species by broad oceanic region. teleius Alcon Large Blue Butterfly Large Blue Butterfly Greater Large Blue Butterfly Scarce Large Blue Butterfly CZECHOSLOVAKIA Helix pomatia Margaritifera auricularia M . teleius Roman Snail Spengler's Freshwater Mussel (Ex) Freshwater Pearl Mussel Medicinal Leech Noble Crayfish Apollo Butterfly Alcon Large Blue Butterfly Large Blue Butterfly Dusky Large Blue Butterfly Scarce Large Blue Butterfly Mires of the Sumava Mountains DENMARK Helix pomatia Margaritifera margaritifera Hirudo medicinalis Astacus astacus Parnassius apollo Maculinea alcon M. margaritifera Hirudo medicinalis Astacus astacus Austropotamobius pallipes Maculinea arion Starlet Sea Anemone Roman Snail Spengler's Freshwater Mussel (Ex) Freshwater Pearl Mussel Medicinal Leech Noble Crayfish (? teleius Epimyrma ravouxi Roman Snail Medicinal Leech Kocevje subterranean spider Noble Crayfish White-footed Crayfish Apollo Butterfly Dusky Large Blue Butterfly Scarce Large Blue Butterfly Ravoux's Slavemaker Ant ETHIOPIAN REGION Phylum Onychophora Peripatus LESOTHO Microscolex spp. South African acanthodriline earthworms SOUTH AFRICA Gulella planti Chilota spp. Protozoa and other microbial species make up a large portion of the biomass of many aquatic systems. Ciguatera fish poisoning in the United States Virgin Islands: preliminary studies. Fluoridation of water has a detrimental effect on sponges, causing skeletal abnormalities and the disappearance of these organisms from water pipes. It soon became apparent that documentation of threats to invertebrates presented a unique set of issues and problems. Oceanic islands have been placed in a separate section. arion Roman Snail Freshwater Pearl Mussel Medicinal Leech Noble Crayfish Apollo Butterfly Alcon Large Blue Butterfly Large Blue Butterfly SWITZERLAND Helix pomatia Margaritifera auricularia Hirudo medicinalis Astacus astacus Austropotamobius pallipes Coenagrion freyi Parnassius apollo Maculinea alcon M. ) Noble Crayfish White-footed Crayfish Freya's Damselfly Apollo Butterfly Alcon Large Blue Butterfly Large Blue Butterfly Dusky Large Blue Butterfly Scarce Large Blue Butterfly Ravoux's Slavemaker Ant Goesswald's Inquiline Ant TURKEY Hirudo medicinalis Medicinal Leech UNITED KINGDOM (see also St Helena, St Lucia, Tristan da Cunha) Nematostella vectensis Helix pomatia Margaritifera auricularia M. Margaritifera margaritifera Hirudo medicinalis Astacus astacus Parnassius apollo Maculinea alcon M. nausithous Aulacopone relicta Freshwater Pearl Mussel Medicinal Leech Noble Crayfish Apollo Butterfly Alcon Large Blue Butterfly Large Blue Butterfly Dusky Large Blue Butterfly Caucasian Relict Ant YUGOSLAVIA Helix pomatia Hirudo medicinalis Troglohyphantes gracilis T. spinipes Astacus astacus Austropotamobius pallipes Parnassius apollo Maculinea nausithous M . K.) Katechonemertes nightingalensis RODRIGUES (Mauritius) Geonemertes rodericana SEYCHELLES Polposipus herculeanus Hercules Beetle Andean brown butterflies OCEANIC ISLANDS Terrestrial nemertine St Helena Earwig Terrestrial nemertine Terrestrial nennertine Frigate Island Giant Tenebrionid Beetle xlvii HAWAIIAN ISLANDS (U. SCIENTIFIC INTEREST AND POTENTIAL VALUE Protozoa play an extremely important role in many ecological processes. For example, the Northwest Shelf off the west coast of Australia has been denuded of benthos by prawn trawling, and scallop dredging in many parts of the world, such as Tasman Bay, New Zealand, has had similar effects (tt S). In GFCM, Management of living resources in the Mediterranean coastal area.

The role of protected areas in conservation of marine genetic resources. There are undoubtedly many others but parasites cannot be considered a high priority when the needs of obviously beneficial invertebrate species are so great. Ciguatera fish poisoning is also caused by a protozoan, the dinoflagellate Gambler discus toxicus which is consumed by fish feeding on corals and algae. Close seasons would be difficult to enforce, but the most effective type would be to close sponge beds in rotation for one or two years. Most invertebrates do not have the popular appeal of birds and mammals and attempts at their conservation are sometimes met with derision. The effects of pollution on marine protozoa are fully reviewed in (8). Tunisia, for example, is interested in culturing sponges but lacks the necessary expertise to set up a programme (6). In this volume every effort is made to emphasize the reasons why the conservation of invertebrates is a matter of genuine concern. Some marine ciliates, for example, are very sensitive to sudden increases in temperature as occur at power plants and other industrial discharge sites (5). If managed effectively, the sponge industry could probably provide a significant income in a number of countries. Furthermore, the effect of man's activities on marine species is still not fully understood; for example, it is not known how long it takes a damaged coral reef to recover nor how long the effects of a major oil spill will last. TRICHOPTERA Hydropsy chidae Ex Hydropsyche tobiasi LEPIDOPTERA Hesperiidae R Dalla octomaculata V V Hesperia dacotae Panoquina errans Papilionidae E Graphium lysithous harrisianus E E Ornithoptera alexandrae Papilio aristodemus ponceanus V V R P. hahneli V Parnassius apollo Lycaenidae V V V V E V K Eumaeus atala florida Maculinea alcon M. Lower termites and wood roaches are dependent on the mutualistic flagellates in their guts which digest the wood eaten by these insects; the products of the digestive process are shared by the flagellate and its host. In 1908, as a result of a study of the fishery in the Gulf of Mexico it was recommended that (25): 1. However, maturation time varies with temperature and although in the northern sponge grounds of the Gulf of Mexico the minimum size for larval production is 6 inches (15 cm), in Honduras maturation may be reached when the sponge is only 2 inches (5 cm) in diameter (39). It is still extremely difficult to estimate population sizes and map distributions of marine species, although the development of SCUBA diving equipment, underwater cameras and deep-sea submersibles has dramatically increased our knowledge of marine life. wilkensi DECAPODA Cambaridae V Orconectes shoupi Astacidae V Astacus astacus R Austropotamobius pallipes V Pacifastacus fortis Par astacidae V Astacopsis gouldi Coenobitidae R Birgus latro INSECTA EPHEMEROPTERA Siphlonuridae R Tasmanophlebia lacus-coeruli Melones Cave Harvestman Tasmanian anaspid crustacean II Madison Cave Isopod Socorro Isopod Parzef all's Stenasellid Wilken's Stenasellid Shoup's Crayfish Noble Crayfish White-clawed Crayfish Shasta Crayfish Giant Freshwater Crayfish Coconut Crab Large Blue Lake Mayfly ODONATA Hemiphlebiidae E Hemiphlebia mirabilis Coenagrionidae E Coenagrion freyi E Ischnura gemina Epiophlebiidae V Epiophlebia laidlawi Cordulegastridae V Cordulegaster sayi Corduliidae R Macromia splendens E Somatochlora hineana GRYLLOBLATTARIA Grylloblattidae V Grylloblatta chirurgica ORTHOPTERA Stenopelmatidae Deinacrida carinata V V V V D. tasmaniensis Tabanidae E Brennania belkini Mount Kosciusko Wingless Stonefly Mount Donna Buang Wingless Stonefly Pygmy Hog Sucking Louse Periodical cicada II Delta Green Ground Beetle Colunnbia Tiger Beetle Giant Carrion Beetle Hercules Beetle II Frigate Island Giant Terebrionid Beetle Lichen Weevil Sugarfoot Moth Fly Giant Torrent Midge Tasmanian Torrent Midge Belkin's Dune Tabanid Fly Drosophilidae V Drosophila spp. margaritifera Hirudo medicinalis Astacus astacus Roman Snail Spengler's Freshwater Mussel (Ex) Freshwater Pearl Mussel Medicinal Leech Noble Crayfish MADEIRA (Portugal) Leptonemertes chalicophora Leiostyla abbreviata L. Most animals serve as hosts for protozoa in one form or another, and in a number of cases such relationships are beneficial or essential to the host as well as to the protozoan. Estuarine and Coastal Marine Science I0{k): 369-381. Certain restrictions such as minimum size limits were imposed in the early days of the industry but these were generally recognized as insufficient. In Florida there is currently a minimum size limit of 5 inches (13 cm) for the wool sponge.

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