Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo)
Data on nutrient contents of freshwater crabs are important for ecological studies and species conservation assessments, especially when the species concerned is threatened among others by habitat destruction and uncontrolled resources utilisation. Indeed comprehensive biological information is r...
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Universiti Sains Malaysia
2017
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my.unimas.ir.186472023-03-31T07:44:03Z http://ir.unimas.my/id/eprint/18647/ Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) Jongkar, Grinang Pang, Sing Tyan Andrew Alek, Tuen Das, I. QL Zoology Data on nutrient contents of freshwater crabs are important for ecological studies and species conservation assessments, especially when the species concerned is threatened among others by habitat destruction and uncontrolled resources utilisation. Indeed comprehensive biological information is required to reconcile the needs between sustainable resources utilisation and conservation of the species. This study documents the nutrient contents of a freshwater crab, Isolapotamon bauense which is listed as ‘Vulnerable’ in the IUCN Red List of Threatened Species and also being harvested by local community for dietary supplement. Results show that muscles of the freshwater crab contain a substantial amount of nutrients in particular water content (male = 79.31 ± 2.30 %, female = 77.63 ± 0.56 %), protein (male = 77.47 ± 6.11 %, female = 63.28 ± 3.62 %), magnesium (male = 51.48 ± 16.10 mg/g, female = 39.73 ± 6.99 mg/g) and calcium (male = 25.50 ± 6.98 mg/g, female = 39.73 ± 6.99 mg/g). Means of nutrient contents between male and female crabs are not significantly different. It is estimated that an individual of I. bauense with weight range of 56–139 g contained on average of 0.35 ± 0.15 g of protein. Our estimation also shows that the number of individuals of the freshwater crab required to meet the recommended daily protein intakes of the community concerned is in the range 35–96 individuals for children, 130–188 individuals for adolescents, 171–179 individuals for men and 149–159 individuals for women. The results imply that harvesting of wild I. bauense as a source of protein supplement naturally may not be practical because of its relatively low population abundance, and conservation of the species for its ecological roles may thus be preferred. Universiti Sains Malaysia 2017 Article PeerReviewed text en http://ir.unimas.my/id/eprint/18647/7/Nutrient%20Contents%20of%20the%20Freshwater%20Crab%2C%20Isolapotamon%20bauense%20%28abstract%29.pdf Jongkar, Grinang and Pang, Sing Tyan and Andrew Alek, Tuen and Das, I. (2017) Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo). Tropical Life Sciences Research, 28 (2). pp. 75-87. ISSN 1985-3718 https://doi.org/10.21315.tlsr2017.28.2.6 DOI : 10.21315.2017.28.2.6 |
| institution |
Universiti Malaysia Sarawak |
| building |
Centre for Academic Information Services (CAIS) |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Malaysia Sarawak |
| content_source |
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| url_provider |
http://ir.unimas.my/ |
| language |
English |
| topic |
QL Zoology |
| spellingShingle |
QL Zoology Jongkar, Grinang Pang, Sing Tyan Andrew Alek, Tuen Das, I. Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| description |
Data on nutrient contents of freshwater crabs are important for ecological
studies and species conservation assessments, especially when the species concerned
is threatened among others by habitat destruction and uncontrolled resources utilisation.
Indeed comprehensive biological information is required to reconcile the needs between
sustainable resources utilisation and conservation of the species. This study documents the nutrient contents of a freshwater crab, Isolapotamon bauense which is listed as
‘Vulnerable’ in the IUCN Red List of Threatened Species and also being harvested by
local community for dietary supplement. Results show that muscles of the freshwater crab
contain a substantial amount of nutrients in particular water content (male = 79.31 ± 2.30
%, female = 77.63 ± 0.56 %), protein (male = 77.47 ± 6.11 %, female = 63.28 ± 3.62 %),
magnesium (male = 51.48 ± 16.10 mg/g, female = 39.73 ± 6.99 mg/g) and calcium (male
= 25.50 ± 6.98 mg/g, female = 39.73 ± 6.99 mg/g). Means of nutrient contents between
male and female crabs are not significantly different. It is estimated that an individual of
I. bauense with weight range of 56–139 g contained on average of 0.35 ± 0.15 g of protein.
Our estimation also shows that the number of individuals of the freshwater crab required to
meet the recommended daily protein intakes of the community concerned is in the range
35–96 individuals for children, 130–188 individuals for adolescents, 171–179 individuals
for men and 149–159 individuals for women. The results imply that harvesting of wild
I. bauense as a source of protein supplement naturally may not be practical because of its
relatively low population abundance, and conservation of the species for its ecological roles
may thus be preferred. |
| format |
Article |
| author |
Jongkar, Grinang Pang, Sing Tyan Andrew Alek, Tuen Das, I. |
| author_facet |
Jongkar, Grinang Pang, Sing Tyan Andrew Alek, Tuen Das, I. |
| author_sort |
Jongkar, Grinang |
| title |
Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| title_short |
Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| title_full |
Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| title_fullStr |
Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| title_full_unstemmed |
Nutrient Contents of the Freshwater Crab, Isolapotamon bauense from Sarawak, Malaysia (Borneo) |
| title_sort |
nutrient contents of the freshwater crab, isolapotamon bauense from sarawak, malaysia (borneo) |
| publisher |
Universiti Sains Malaysia |
| publishDate |
2017 |
| url |
http://ir.unimas.my/id/eprint/18647/7/Nutrient%20Contents%20of%20the%20Freshwater%20Crab%2C%20Isolapotamon%20bauense%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/18647/ https://doi.org/10.21315.tlsr2017.28.2.6 |
| _version_ |
1762396662699917312 |
| score |
13.251813 |