Exotic Aquatic Organisms - International Development Research ...

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Recommendations of the Workshop 1.0 TERMINOLOGY: 1.1 It was apparent that the terminology needed careful consideration, in spite of the issue of exotics and or introductions having been dealt with from time to time. The matter was more complicated in the region because zoogeographical boundaries and country boundaries in most cases were very different from one another. 1.2 A separate sub-committee was appointed to examine and report on suitable definitions for an exotic introduction, transplant and introduction. The committee could not come-up with acceptable definitions during the workshop and the workshop requested Dr. Chua Thia-Eng and Mr. Jay Maclean to survey the available literature and submit suitable definitions for consideration by the Committee on Exotics. 2.0 DATA BASE: 2.1 A considerable amount of fresh data was presented on the introduction of exotics into the region at the meeting. Some of the information however, needed to be revised by participants and the Chairman of the Exotics Group (Dr. S.S. De S) will coordinate this activity and standardize the presentation of the data. 2.2 The Chairman will also attempt to obtain comparable data from those countries which were not represented at the Workshop, and if possible also make attempts to dig into the "grey literature" to find the same. In order to achieve this end it might be necessary to identify and liaise with scientists who are interested in the topic in each of the countries in the region. 2.3 The Workshop took into account the interests and experience of the FAQ, EIFAC and the American Fisheries Society on this topic and the need for the Society to liaise with these organizations was noted. 3.0 NEW INTRODUCTIONS: 3.1 The information available on the procedures adopted in making or deciding upon an introduction was scanty, except perhaps in Australia. Japan for example has no restrictions on live aquatic introductions. 3.2 As such, it was deemed appropriate and relevant to document the information available with respect to each country. The delegates were requested to furnish this information, in a schematic form, in due course. The Committee on Exotics will attempt to compile this information in a publishable form. 133
134 4.0 AQUARIUM FISH: 4.1 4.2 4.3 The delegates expressed concern over the growing aquarium fish trade which in most instances is responsible for introduction and spread of diseases. The meeting agreed that an attempt should be made to list the common aquarium fish species imported/exported into from each country in the region, with notes on the quarantine measures adopted. All delegates were of the view that this is a very difficult task to achieve and would take a considerable amount of time to prepare an accurate list. Instances in which a fish such as pirranha imported for the aquarium industry in Thailand has been discovered in the natural waters, were cited as examples of the need to address the issue in greater depth. 5.0 IMPACT OF INTRODUCTIONS: 5.1 5.2 It was agreed that most introductions, especially the food fish species, have had considerable socio-economic impact in most countries, in the region. It was also recognized that unlike in Europe, North America or for that matter, Australia, the assessment of the impact in most Asian countries should be made from. a different view point. As an initial step, five criteria were agreed upon to dei:ermine the impact of introduced, common food fish species, such as for example i;he tilapias, carps, etc. into each of the countries. The final assessment is to be published in the Proceedings of this Workshop. It was also felt that Asia has suffered few losses of native species upi:o now and the number endangered are also small as a result of introductions. However, this was no matter for complacency and the need to scrutinize the new proposals for introductions was accepted. 6.0 FUTURE ACTION: 6.1 6.2 It was agreed that the results of this Workshop should be published as an Asian Fisheries Society Publication. The publication would include the revised, presented papers and further data which the participants were asked to furnish and summary tables on a regional basis. A standing committee of the Society on 'Exotics' consisting of Prof. Sena S. De Silva Dr. Frances Michaelis Dr. M. Shariff (Chairman) (Australia) (Malaysia)
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Exotic Aquatic Organisms in Asia /
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Exotic Aquatic Organisms in Asia Pr
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The Introduction of Exotic Aquatic
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Introduction This special publicati
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help to promote national awareness
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Conditions in Europe and North Amer
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2 taken as the basis for the introd
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4 with respect to other introductio
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6 Costa-Pierce, B. 1988. Study miss
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8 extinction of the endemic rainbow
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10 bottom substrates by European ca
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12 Arthington 1988; Lloyd 1987); G.
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14 Apparent Extinction of the Lake
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16 successful and more often than n
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18 Reznick, D. 1981. 'Grandfather E
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20 -24° 4' 4 - I- .300 Cl) '1 S 36
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22 The terminology associated with
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24 Table 2. Translocations of indig
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26 MELANOTAENIIDAE Melanotaenia spl
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28 ELEOTRIDAE - GUDGEONS Hypseleotr
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30 POECILIIDAE - LIVEBEARERS Gambus
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32 References Allen, G.R. 1982. A F
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34 Robinson, S.E. 1982. The ecology
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36 1973. It has been cultured in so
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38 northern Japan, settled off Dali
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40 Table 1. The exotic aquatic food
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42 Table 2. The preliminary list of
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Impact of Exotic Aquatic Species in
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Table 1. Salinonids introduced into
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Grass carp The grass carp, Ctenopha
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Table 4. Total catch and tilapia yi
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Salvinia molesta, a floating fern o
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Joy, PJ., K.R. Sathesan and D. Jose
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58 Table 1. Introduced aquatic spec
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60 The 1940s The Inland Fisheries D
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62 Indonesia includes three differe
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64 information on the status of fau
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66 Table 1. List of exotic aquatic
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68 Table 1. Continued Taxonomic Sta
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70 From this historical review, it
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72 what they perceived as economica
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74 Table 1. Fate of the introduced
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76 While it is likely that at the o
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78 Pearl Spot The pearl spot, Etrop
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80 Trengganu Enactment No. 8 of 196
Page 93 and 94: 82 References Annual Fisheries Stat
Page 95 and 96: 84 long time ago as shown by the fa
Page 97 and 98: 86 Discussion and Recommendations E
Page 99 and 100: Table 1. Exotic aquatic species int
Page 101 and 102: Table 1. Continued Diseases/Parasit
Page 103 and 104: 92 Fisheries (Piranhas) Rules 1971,
Page 105 and 106: 94 (Caranx ignobilis) golden treval
Page 107 and 108: 96 Table 1. Main species of aquariu
Page 110 and 111: Status of Introduced Species in Sri
Page 112 and 113: Exotic Aquatic Species in Taiwan I-
Page 114 and 115: appreciated in the context of the w
Page 116 and 117: However, A. anguilla cannot tolerat
Page 118 and 119: Today, most of these carps are poly
Page 120 and 121: Caiman latirostris and Alligator mi
Page 122 and 123: Conclusions The case of the tilapia
Page 124 and 125: Table 1. Continued Culture Status P
Page 126 and 127: Table 2. Record of tilapia introduc
Page 128 and 129: Annex I. Continued Dascyllus melamu
Page 130 and 131: Exotic Aquatic Species in Thailand
Page 132 and 133: Present Status of the Exotic Specie
Page 134 and 135: Table 1 a. Exotic fishes introduced
Page 136 and 137: Australian Government Position: Int
Page 138 and 139: There are presently eight State or
Page 140 and 141: egulate any activity likely to have
Page 142 and 143: Appendix II. Continued Name State o
Page 146 and 147: (two more to be co-opted) was appoi
Page 148 and 149: Mr. J. Maclean, do ICLARM, MC P0 Bo
Page 150 and 151: Appendix I Definitions of Exotics T
Page 152 and 153: Appendix II Assessment of the Impac
Page 154 and 155: Table All.3. Assessment of the stat
Page 156 and 157: Table All.6. Assessment table of th
Page 158 and 159: Table All.8. Assessment table of th
Page 160 and 161: Table All.10. Continued Family/Spec
Page 162 and 163: Table Affi. Indigenous species whic
Page 164 and 165: Appendix V Existing Legislation or
Page 166: TITLES IN THE ASIAN FISHERIES SOCIE
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