Genetic aspects of conservation and cultivation of giant clams report of the workshop held on 17-18 June 1992 at the ICLARM headquarters, Makati, Metro Manila, Philippines

Cover of: Genetic aspects of conservation and cultivation of giant clams |

Published by International Center for Living Aquatic Resources Management, Australian Centre for International Agricultural Research, International Development Research Centre in [Makati, Metro Manila, Philippines], Canberra, Australia, Ottawa, Canada .

Written in English

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Subjects:

  • Giant clams -- Genetics -- Congresses.,
  • Wildlife conservation -- Congresses.,
  • Giant clam culture -- Congresses.

Edition Notes

Includes bibliographical references.

Book details

Statementedited by Patricia Munro.
SeriesICLARM conference proceedings,, 39, ICLARM contribution ;, no. 914
ContributionsMunro, Patricia., Australian Centre for International Agricultural Research., International Development Research Centre (Canada)
Classifications
LC ClassificationsQL430.7.T7 G45 1993
The Physical Object
Paginationvi, 47 p. :
Number of Pages47
ID Numbers
Open LibraryOL1262140M
ISBN 109718709363
LC Control Number94945534

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Genetic Aspects of Conservation and Cultivation of Giant Clams Report of the Workshop held on 8 June at the ICLARM headquarters Makati, Metro Manila, Philippines Edited by PATRICIA MUNRO Printed in Manila, Philippines Published by the International Center for Living Aquatic Resources.

Downloadable. Report of a workshop. Includes discussion papers on population genetics, broodstock establishment, preservation of biodiversity, hatchery procedures, and identifying strains; country papers from Australia, Fiji, Palau, Philippines and the Solomon Islands; discussion sessions and recommendations.

Genetic aspects of conservation and cultivation of giant clams. Report of a workshop. Includes discussion papers on population genetics, broodstock establishment, preservation of biodiversity, hatchery procedures, and identifying strains; country papers from Australia, Fiji, Palau, Philippines and the Solomon Islands; discussion sessions.

Genetic aspects of conservation and cultivation of giant clams: report of the workshop held on June at the ICLARM headquarters, Makati, Metro Manila, Philippines Author: Patricia Munro ; Australian Centre for International Agricultural Research.

Conservation and cultivation of giant clams could be practised in the same manner as that applied to trees. Production of seedlings in giant clams requires a breakthrough in the technique of spat handling in the laboratory, i.e. for collecting and maintaining the newly settled juveniles until they reach 'escape' size above which the mortality by predation is markedly Cited by: The beautiful mantle coloration of the boring giant clam would also be a desirable trait in a hybrid giant clam intended for aquaculture.

Thus, hybridization between T. squamosa and T. crocea could potentially produce hybrid variety with highly desirable genetic by: 2. Giant clams, the largest living bivalves, play important ecological roles in coral reef ecosystems and provide a source of nutrition and income for Author: Mei Lin Neo.

For the past Genetic aspects of conservation and cultivation of giant clams book, I have had numerous opportunities to speak about the conservation of giant clams.

Here, I decided to write a four-part series about the conservation issues surrounding giant clams to commemorate my TED talk in April !For the first post in this series, I shall share the history of giant clam mariculture and explore some of the country. Background Giant clams (Tridacnidae) are the largest marine bivalves found in coastal areas of the Indo-Pacific region.

Eight species of giant clam of. Rev Fish Sci – Munro PE (Editor) () Genetic aspects of conservation and cultivation of giant clams. ICLARM Conf P ICLARM, Manila, 47 pp J. Bell Restocking of giant clams. Giant clams are among the bottom-inhabiting wildlife in shallow habitats of coral reefs.

Because of their shallow distribution, they are readily located and collected, and they have been a traditional and reliable food source throughout their geographic ranges. The shells of giant clams are used for containers (e.g.

pig troughs), tools and by: 1. The high genetic diversity and medium population differentiation revealed in the present study offer useful information on genetic conservation of small giant clams. View Show abstract.

This paper reports on embryonic and larval development of the giant clam Tridacna noae. Spawning was induced by serotonin injection Genetic aspects of conservation and cultivation of giant clams book the gonad. Unfertilized eggs had a mean (±SE) diameter of ± µm and spermatozoa heads were ± µmlong.

Embryonic development had progressed to the 8-cell and cell stages by 3 h Cited by: Genetic aspects of mollusc conservation (Nautilus) (Abstract) D.S. Woodruff 40 Chapter 4: Sustainable utilization The shell trade - a case for sustainable utilization E.

Wood and S.M. Wells 41 SECTION 2: A REPORT ON MOLLUSCAN DIVERSITY Chapter 5: Hug a slug - save a snail: A status report on molluscan diversity and a framework for conservation File Size: 2MB. Benzie, J.A.H. Review of the population genetics of giant clams. In Munro, P. (ed) Genetic aspects of conservation and cultivation of giant clams.

ICLARM Conference Proceedi pp 1–6. Benzie, J.A.H., Williams, S.T. No genetic differentiation of giant clam (Tridacna gigas) populations in the Great Barrier Reef, Australia.

A recent review of global giant clam production reported that annual production exceededindividuals infocused primarily on aquarium markets (% of production. Trawling through hundreds of papers, reports, and books, we argued that giant clams are important sources of food for a variety of reef predators, providers of shelters for small invertebrates and reef fish, and finally, contributors to reef building and shaping (Neo et.

Eight production batches of juvenile giant clams (Tridacna gigas) were sampled from three different hatcheries where some batches were derived from single-pair matings and some derived from mixtures of gametes from multiple adults.

Allozyme electrophoresis was used to assess parentage and genetic diversity of the by:   The high genetic diversity and medium population differentiation revealed in the present study offer useful information on genetic conservation of small giant clams.

Background The giant clam subfamily Tridacninae (Schneider and Foighil ) is the most widespread of the bivalves and is distributed throughout the Red sea and Indo-Pacific Cited by: 2.

Heslinga, G. Palau country report. In: Genetic Aspects of Conservation and Cultivation of Giant Clams. Munro, Ed. ICLARM Conference Proceedings. In Munro P. (ed) Genetic aspects of conservation and cultivation of giant clams. ICLARM Conference Proceedi pp 21– Gharrett, A.J.

et W.W. Smoker, Genetic components in life history traits contribute to population structure. In Cloud J.G. et G.H. Thorogaard (éds). Genetic conservation of salmonid fishes. The diversity of symbionts in giant clams raises the question of source of such genetic variation, and whether the same is true for most symbiotic reef by:   Wedge clam, Donax scortum occurrence was studied from February to January in Padukere sandy beach, Karnataka (India).

The following biological parameters were measured in individuals of the wedge clam, Donax scortum: length, breadth, width, total weight, shell weight, wet meat weight, dry meat weight and number of Cited by: 5.

Giant Clam Reproduction: Giant Clams have both male and female reproductive organs, but are not entirely believed to be asexual. Giant clams release eggs and sperm into the water, where the eggs will generally be fertilised by the sperm from another giant clam.

Giant clams are able to release more than million eggs at a time. REFERENCES. Beckvar, N. Cultivation, spawning and growth of the giant clams Tridacna gigas, Tridacna derasa, and Tridacna squamosa in Palau, Caroline Islands. Aquacult 21– Braley, R.D. Reproduction in the giant clams Tridacna gigas and T.

derasa in situ on the North-Central Great Barrier Reef and Papua New Guinea. Coral Reefs, 3, – Inbreeding depression of phenotypic traits for three giant clams were firstly evaluated. • Heavy inbreeding depression occurred metamorphosis stage for the medium (T.

squamosa) and small type (T. crocea) giant no inbreeding depression was found on the larger type giant clam (T. derasa).These results provides a practical account of a mating strategy suitable for seed production Author: Yuehuan Zhang, Haitao Ma, Xingyou Li, Zihua Zhou, Jun Li, Jinkuan Wei, Yinyin Zhou, Yue Lin, Zohaib.

Aquarium Invertebrates: A Look at Giant Clam Spawning in Aquaria - Even under the best conditions, only a small percent of the eggs ejected in a spawning event will actually get fertilized, and of those that do, maybe 5% will make it through metamorphosis, or even far fewer than that.

According to the book review of Shifting Baselines: The Past and the Future of Ocean Fisheries, by J. Jackson, K. Alexander and E. Sala, which statement is false regarding "shifting baselines". Pre World War II, ocean conditions represented it's pristine state with abundant fish, and the recovery target for declining fish populations should be.

Status of giant clam stocks and prospects for clam mariculture in the central Gilbert Islands group, Republic of Kiribati. Report to Fisheries Division, Ministry of Natural Resources Development, Republic of Kiribati.

The New Heaven Reef Conservation Program has been protecting, preserving and restoring the coral reefs around Koh Tao, Thailand for more than a decade. From courses in marine ecology and ecological monitoring programs, it grew into one of the most comprehensive courses in marine conservation on Koh Tao.

Everything from artificial reefs and coral gardens, creating. The proximity of many Pacific countries to seafood markets in Asia, the high value of species associated with coral reefs, and the increased demand for marine aquarium species, has prompted many nations in the region to investigate opportunities for coastal aquaculture.

There are, however, several constraints to consider throughout much of the Pacific, including, Cited by: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to the conservation of freshwater, brackish or marine habitats and encouraging work that spans these ecosystems.

This journal provides a forum in which all aspects of the conservation of aquatic. Introduction. Giant clams of the genus Tridacna are among the most conspicuous marine invertebrates on coral reefs due to their large size and brilliantly colored mantle that contains photosynthesizing symbionts.

Giant clams have traditionally provided raw material for tools, containers, and ornaments, and many populations are harvested for meat, shells, and the Cited by: Giant Clam Production in Samoa Hatchery Operations Manual, Lindsay, S., Bell, L.A.J, Mulipola, A.,giant clams, hatcheries, aquaculture, Samoa, Tridacna squamosa, Scaly of fluted giant clam, Tridacna maxima, Elongated giant clam, Tridanca derasa, smooth giant clam, Tridacna gigas, true giant clam,Natural System,People & Livelihoods,Institutions &.

Aspects of the biology and ecology of Mysella bidentata (Montagu). Honours Thesis, (). Invertebrate Red Data Book. International Union for Conservation of Nature, Prospects for the commercial cultivation of giant clams (Bivalvia: Tridacnidae).Author: John W. Copland and J.S. Lucas. Giant clams evolved amazing algae farms within their iridescent tissues that convert sunlight into food, and so very efficiently in a small amount of space.

Now, NatureNet Science Fellow Sanaz Vahidinia is using those structures to help scale up production of clean biofuels from algae.

Conserving giant clams. To assist in the conservation of Tridacna gigas, the Marine Science Institute at the University of the Philippines has been culturing giant clam species for the restoration.

Introduction. Giant clam populations in Singapore have declined since the early s due to overharvesting and the loss of coral reef habitats.Surveys of Singapore's Southern Islands conducted in / indicate that only a very small adult population of two species (Tridacna crocea and T. squamosa) persists, while Hippopus hippopus, T.

giga and T. maxima, which Cited by: Understanding variability of recruitment and mortality is essential for attempts to conserve populations or assessing changes resulting from perceived disturbances. In the absence of long-term studies, we examined population density and size-frequency distributions of the small giant clam, Tridacna maxima, at 20 sites in Ningaloo Marine Park, Western Australia, where the clams Cited by:   However, DMS from giant clams seems unlikely to be climatically important except as a minor component of reef-community contributions, because the clams are insufficiently abundant, especially in modern times.

On the other hand, DMSP and DMS in giant clams are likely important in two major ways. Free Online Library: Probability of symbiosis establishment by giant clams with fresh and cultured Symbiodinium isolated from various host animals.(Report) by "Journal of Shellfish Research"; Zoology and wildlife conservation Biological sciences Antibiotics Giant clam Environmental aspects Sea-water Seawater Seed industry Symbiosis.

Mimicking giant clams to enhance the production of biofuel Date: November 2, Source: University of Pennsylvania Summary: Researchers are working together to create an artificial system that.Study species.

The fluted, or scaly, giant clam, Tridacna squamosa Lamarck,listed as ‘Lower Risk/conservation dependent’ on the IUCN Red List of Threatened Species [], is native to shallow coral reefs of the South Pacific and Indian Oceans, but possibly extinct in Japan and the Northern Mariana Islands [].A new species range extension into French Polynesia has been Cited by:

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