Rearing the Coral Seahorse, Hippocampus Barbouri, on Live and Inert Prey

Payne, M.

doi:10.1002/9780470752722.ch21

Cited by 9 publications

(12 citation statements)

References 12 publications

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“…However, a growing number of studies have helped provide solutions to many of these bottlenecks in a number of seahorse species that are of commercial interest (e.g. Lockyear et al 1997;Wilson and Vincent 1998;Woods, 2000;Job et al 2002;Payne 2003). A major bottleneck that does remain is that of cost-effective feeding and food production in a commercial environment.…”

Section: Introductionmentioning

confidence: 99%

“…A major bottleneck that does remain is that of cost-effective feeding and food production in a commercial environment. Consequently, topics such as reducing feed costs and improving seahorse growth and survival through feeding a variety of food types are the focus of such research and development (Job et al 2002;Gardner 2003;Payne 2003;Woods 2003a,b;Woods and Valentino 2003).…”

Section: Introductionmentioning

confidence: 99%

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Growth of cultured seahorses (Hippocampus abdominalis) in relation to feed ration

Woods

2005

Aquacult Int

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This investigation examined the effect of varying feed ratios on cultured seahorse (Hippocampus abdominalis) growth and survival using frozen mysids (Amblyops kempii) at daily feed rations of 5, 10, 15 or 20% wet body weight. Feeding these different feed rations did not result in any significant difference in seahorse standard length after 3 months. However, seahorses fed the 10-20% rations were heavier and with higher condition factor (CF). Based on the total amount of frozen mysids offered to the seahorses, the food conversion ratio (FCR) became less efficient with increasing feed ration. However, when the actual mysid consumption was factored in there were no significant differences in FCR. There was a significant difference in daily specific growth rate (SGR), with the 5% ration having the lowest SGR. On a cost/benefit basis, based on the total amount of mysids offered the most cost effective ration for daily length and weight increase was the 5% ration. With actual mysid consumption taken into account, cost/benefit value favoured the 5 and 10% feed rations. Survival was 100% across all treatments. Based on this, a feed ration of 5-10% wet body weight per day of frozen mysids is recommended for cultured H. abdominalis.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth of cultured seahorses (Hippocampus abdominalis) in relation to feed ration

Woods

2005

Aquacult Int

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“…Most species (both nominal and accepted) were described in the middle of the 19th century (1841-1860) and in the last two decades (2001-2020). Although available cultivation techniques already promote acceptable survival rates for some species, there still is a need to improve culture protocols, especially in terms of nutrition and microbiological aspects [57,84,85]. Moreover, over the past few decades, there have been many studies on the harmful effects of aquaculture on the environment [86][87][88][89][90].…”

Section: Species Discovery: Nominal and Valid Speciesmentioning

confidence: 99%

Diversity of Seahorse Species (Hippocampus spp.) in the International Aquarium Trade

Koning

Hoeksema

2021

Diversity

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Seahorses (Hippocampus spp.) are threatened as a result of habitat degradation and overfishing. They have commercial value as traditional medicine, curio objects, and pets in the aquarium industry. There are 48 valid species, 27 of which are represented in the international aquarium trade. Most species in the aquarium industry are relatively large and were described early in the history of seahorse taxonomy. In 2002, seahorses became the first marine fishes for which the international trade became regulated by CITES (Convention for the International Trade in Endangered Species of Wild Fauna and Flora), with implementation in 2004. Since then, aquaculture has been developed to improve the sustainability of the seahorse trade. This review provides analyses of the roles of wild-caught and cultured individuals in the international aquarium trade of various Hippocampus species for the period 1997–2018. For all species, trade numbers declined after 2011. The proportion of cultured seahorses in the aquarium trade increased rapidly after their listing in CITES, although the industry is still struggling to produce large numbers of young in a cost-effective way, and its economic viability is technically challenging in terms of diet and disease. Whether seahorse aquaculture can benefit wild populations will largely depend on its capacity to provide an alternative livelihood for subsistence fishers in the source countries. For most species, CITES trade records of live animals in the aquarium industry started a few years earlier than those of dead bodies in the traditional medicine trade, despite the latter being 15 times higher in number. The use of DNA analysis in the species identification of seahorses has predominantly been applied to animals in the traditional medicine market, but not to the aquarium trade. Genetic tools have already been used in the description of new species and will also help to discover new species and in various other kinds of applications.

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“…Among them, Hippocampus barbouri has been included in the illegal trade and export, particularly in the Philippines. This species spends most of its time attached to the corals (Payne 2003), which made them easy to catch. This species also helps to maintain the equilibrium within the corals, which play important ecological roles (Wabnitz et al .…”

Section: Introductionmentioning

confidence: 99%

High‐throughput sequencing‐based analysis of bacterial communities associated with Barbour's seahorses ( Hippocampus barbouri ) from Surigao del Norte, Philippines

Ortega

Tabugo

Martinez

et al. 2021

Lett Appl Microbiol

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This study identified the bacterial community composition associated with Barbour's seahorses (Hippocampus barbouri). Seahorses and samples from the surrounding environment (sediment and water) were collected from Cantiasay Island in Surigao del Norte, Philippines. Genomic DNA was isolated from these samples, and the V1–V3 region of the 16S rRNA gene was amplified and sequenced on the Illumina MiSeq platform. There were 929 803 sequence reads corresponding to 859 operational taxonomic units (OTUs), which were obtained from the six genomic libraries. The results showed that the most abundant OTUs were affiliated to the phylum Proteobacteria, particularly those belonging to the genera Shewanella, Pseudomonas, Acinetobacter and Aeromonas, which were found to be dominant in seahorse gut samples. The only exception was for the skin of male seahorses, which was dominated by members belonging to the genus Bacillus (phylum Firmicutes). These findings on bacterial community structure and composition may shed light on therapeutic claims of Barbour's seahorses and help in the conservation of this species.

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Rearing the Coral Seahorse, Hippocampus Barbouri, on Live and Inert Prey

Cited by 9 publications

References 12 publications

Growth of cultured seahorses (Hippocampus abdominalis) in relation to feed ration

Growth of cultured seahorses (Hippocampus abdominalis) in relation to feed ration

Diversity of Seahorse Species (Hippocampus spp.) in the International Aquarium Trade

High‐throughput sequencing‐based analysis of bacterial communities associated with Barbour's seahorses ( Hippocampus barbouri ) from Surigao del Norte, Philippines

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