Svein,
Ja och nej, det är mer komplicerat än så. Generellt kan man kanske säga att är man inte specialist och studerar/föder upp sjöhästar ger man dem den bästa skansen att överleva. Befolkningen kan som i projectet nedan föreslår jobba med souvenirer som föreställer sjöhastar.
Mvh,
cri
http://www.seahorse.mcgill.ca/
1. Your actions can help ensure that trade is sustainable:
 Avoid buying seahorses as curios or souvenirs.
 Do not buy seahorses for your home aquarium unless you have extensive experience with difficult marine fish species. Seahorses are among the most challenging marine species to keep because of their demanding live food requirements and their vulnerability to disease.
 If you do buy live seahorses, choose species that do best in captivity (such information is gradually emerging), ask suppliers about their sources and trade routes, insist on buying seahorses that have well-rounded trunks (many are concave because they have not been fed en route), avoid buying juveniles, and insist on comprehensive information about seahorse keeping. Also avoid buying males that have very distended brood pouches, since any that are nearly ready to give birth were probably caught when pregnant.
 If your captive seahorses do die, resist the temptation to replace them until you have learned more about their requirements.
 Seek to reduce your use of dried seahorses in traditional medicine. Particularly seek alternatives when choosing a tonic food. Consider whether your ailment needs to be treated with seahorses or whether another medicine might suffice.
 If you must buy dried seahorses, ask your dealer to purchase species that are least threatened (such information is gradually emerging). Refuse to buy pregnant males, since their young have died with them, reducing the prospects for population recovery. Avoid pre-packaged medicines containing seahorses as these often include juveniles that have been collected before they can reproduce.
 Recognise that small-scale low-technology aquaculture in seahorse fishing countries can help seahorse fishers become seahorse farmers, thus reducing pressure on wild populations while providing alternative livelihoods. Commercial-scale aquaculture by people not dependent on seahorse fishing, in contrast, commonly creates more conservation costs than benefits.
Keeping seahorses and pipefishes in aquaria: a position statement from Project Seahorse
Project Seahorse recognizes that a sustainable trade in syngnathids for the public aquarium market has a role to play in the conservation of seahorses and pipefishes (syngnathids). All consumers of syngnathids need to be mindful of the considerable pressures being placed on wild populations through habitat change, incidental capture in non-selective fishing gear, and direct fishing. Extraction of fishes for ornamental display applies a direct pressure on many syngnathid populations, and we encourage the aquarium community to minimize its impacts and engage in conservation efforts.
The potential benefits of the aquarium trade are many and varied:
 giving a tangible value to wild syngnathid populations should help heighten local willingness to protect and manage them appropriately;
 a well-managed target fishery for the aquarium trade may be preferable to fishers undertaking more destructive means of obtaining an income, such as mining coral reefs or dynamite fishing;
 syngnathids held in zoos and aquaria may provide a safety net against population declines or local extinctions (see Project Seahorse position statements on Releases and Hybridisation);
 holding and displaying syngnathids can heighten awareness of marine conservation issues and engage public support;
 holding syngnathids in an aquarium environment provides the opportunity to study and improve our knowledge of their biology.
The following aspects of the aquarium trade currently cause concern with regard to conservation efforts
 the over-exploitation of certain populations of syngnathids for the aquarium trade
 the high mortalities both within the trade and at the end user facilities that fuel the need for increased collection of syngnathids;
 the low price paid to fishers relative to the end value that forces them to over-exploit syngnathid populations;
 the lack of information regarding the origins and taxonomy of traded syngnathids hamper collective breeding programmes;
 the independent breeding ventures without any real conservation focus that divert resources from collective breeding programmes;
 releases of syngnathids from captive populations with associated disease and competition issues that may negatively impact wild populations (see Project Seahorse position statement on Releases).
Syngnathids in the amateur hobby trade
Project Seahorse recommends that breeding of syngnathids only be undertaken by those with the necessary time and resources to contribute their efforts to collaborative management or breeding programmes. We recognize the existence of a legitimate trade in syngnathids for the hobbyist market and that many amateur aquarists are holding syngnathids with the intention of contributing to conservation. However, simply purchasing and holding syngnathids provides little if any conservation support and may be adding to the pressure on wild populations. Successfully maintaining syngnathids in an aquarium environment depends upon a high investment in time and financial resources. The need for live food cultures, frequent feeding and tank maintenance, combined with a high susceptibility to a range of bacterial and parasitic infections make seahorses generally unsuitable for all but the most committed hobbyist.
http://www.breeders-registry.gen.ca.us/Articles/v3_i1_vincent/shorse_n1.htm
