Presence of the Seahorse Hippocampus reidi (Pisces: Syngnathidae) In Diet of Marine Fish in Northeastern Brazil

Silveira, Rosana Beatriz

doi:10.19080/ofoaj.2020.12.555830

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Another future application for molecular analyses could be the examination of gut contents of possible predators for the presence of seahorse DNA (as "environmental DNA" or eDNA). There appear to be very few reports on seahorse predators, such as crabs, cephalopods, fish, and sea turtles [248,[383][384][385], while for the keeping of seahorses in mariculture and aquariums it may be useful to know more about their natural enemies.…”

Section: Use Of Molecular Tools In Hippocampus Diversity Researchmentioning

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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Section: Use Of Molecular Tools In Hippocampus Diversity Researchmentioning

confidence: 99%

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

Koning

Hoeksema

2021

Diversity

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Seahorse Predation by Octopuses in the Caribbean and the West Pacific

Muller¹,

Harasti

Hoeksema

2022

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There is much documentation about seahorses (Hippocampus spp.) being threatened by habitat degradation and overfishing, but relatively few published studies mention their natural predators. The present study documents three cases in which seahorses are being caught by octopuses. In one case, the seahorse was partly consumed. These observations made at Bonaire (Caribbean Netherlands) and New South Wales (Australia) suggest that predation on seahorses by octopuses may be more widespread and common than previously thought.

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Presence of the Seahorse Hippocampus reidi (Pisces: Syngnathidae) In Diet of Marine Fish in Northeastern Brazil

Cited by 2 publications

References 10 publications

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

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

Seahorse Predation by Octopuses in the Caribbean and the West Pacific

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