Aquarium Fish: Prospective Fishes for the New Zealand Rocky Reef Aquarium: A Multimedia Overview
There may be scores of distinct biogeographic regions that have yet to be adequately represented in public aquaria, much less in the aquarium trade. A great many of them lay claim to a multitude of interesting, beautiful and diverse species. The islands of New Zealand serve as a particularly good example of this.
The waters surrounding this island nation are inhabited by as many as 650 fish species. Despite the country's remoteness, a surprisingly small number of its fish fauna is endemic; it really is an inter-oceanic crossroads of sorts, falling within the range of drift between East Australia, South Africa, and Japan. Hence, while it claims relatively few unique fish species, New Zealand is truly unique in that there one can find so many disparate varieties of fish occurring together.
Its environs lie within a latitudinal belt that stretches from the more or less tropical Kermadec Island in the north to sub-antarctic Macquarie Island in the south. The majority of fishes of potential interest to the home aquarist, however, can be found in its subtropical and temperate inshore rocky reef habitats. These rich biological communities may be further subdivided into a number of distinct habitats, from shallow tidepools to lush kelp forests. This particular brand of rocky reef not only occurs in New Zealand proper, but actually abounds within a longitudinal belt that runs from New South Wales to Lord Howe Island to the Poor Knights Islands.
Whether because, or despite, the county's proximity to so many extraordinary marine habitats, interest in marine aquarium keeping appears to be weak there. One resident saltwater fish importer complains, with at least some incredulity, that out of a population of 4 million, probably no more than a 1,000 individuals keep marine aquaria. This is perhaps attributable at least in part to the New Zealand government's strictly imposed quarantine period for imported aquarium fish (3 weeks for saltwater livestock, 6 weeks for freshwater livestock), which raises retail prices considerably. Some ornamental fish and invertebrate species are prohibited altogether. As koi are no longer allowed within its borders, New Zealand's pond keepers have increasingly been experimenting with native freshwater fish species (local retailers have even begun to offer certain native species for this market). Likewise, a handful of marine aquarists there have made attempts (some quite successfully) to create attractive aquarium exhibits with locally obtained flora and fauna.
These successes pose an interesting question: Could any of the species from this region ever become popular in the global ornamental fish trade? One might suppose so, given hobbyists' apparently increasing appetite for rare and unusual fishes. Subtropical and temperate aquaria in particular have steadily gained prominence, with ever more offerings of such species to be found on LiveAquaria.com and now even specialty suppliers such as Coldwater Marine Aquatics.
A growing awareness of the fishes from these areas could lead to a stronger demand in the trade, which could in turn spur suppliers worldwide to distribute them. Harvest and export from New Zealand would undoubtedly serve to fill voids already existing from closures enforced in nearby areas (e.g., the Lord Howe Island group).
The following overview is presented with the aim of contributing to such an awareness, if not a greater representation of these remarkable species in the aquarium fish trade. This multimedia work is comprised mainly of still images by photographer, diver and adventurer Ian Skipworth, video by marine aquarium hobbyist and videographer "corralimorph" (otherwise known at Aquaria Central as "coldmarine007"), and illustrations by biologist, author and artist Tony Ayling. Material in the captions borrows heavily from Collins Guide to the Sea Fishes of New Zealand by Tony Ayling and Geoffrey J. Cox.
Note: Fortunately for New Zealand aquarium hobbyists, there is no permit required for harvesting/keeping marine species provided they meet the size and bag limit requirements and are taken by legal means. Unfortunately for the rest of the world, these fish presently cannot be kept for sale (including barter or trade), breeding or distribution (reseeding, etc.). Would-be exporters and other stakeholders could work with New Zealand's Ministry of Fisheries, however, to relax certain restrictions (particularly those meant to protect sportfish/foodfish stocks) to allow for a well managed marine ornamental fishery. Such industries would not only create economic opportunity for a great many of its citizens, but would furthermore promote a global awareness and appreciation of its rich coastal resources.
For additional regulatory information, please view the following link: http://www.fish.govt.nz/en-nz/Recreational/default.htm
- Ayling, Tony and Geoffry J. Cox. 1984. Collins Guide to the Sea Fishes of New Zealand. William Collins Publishers Ltd.