A venomous spine sits in front of each dorsal fin. The spiny dogfish carries its defence like a warning. Two sharp spines can deliver a painful sting to unsuspecting handlers. Touch the wrong spot and it will be known. The pain is immediate. The lesson is lasting. The shark does not seek conflict. It merely exists. The spines are part of that existence. They protect the soft flesh. They deter the careless.
Despite this defence, the firm white flesh is highly valued. It appears in fish and chip shops across the country. Sold as
lemon fish or
rig. A shark that becomes something else on the menu. A predator that hides its identity behind a friendly name. The consumer rarely knows the source. The label is benign. The reality is cartilaginous. The transformation is culinary. Not biological. The taste is mild. The texture is firm. The demand is steady.
The many Māori names reflect its importance across New Zealand. Kaaraerae, Koinga, Mangohapu, Makohuarau, Mangoo-tara and Okeoke all refer to the same species. These are regional variations in language and tradition. A shark that was known everywhere. Because it was everywhere. The distribution was wide. The recognition was universal. The utility was clear. It fed the people. It provided tools. The spines were sometimes used as needles. The body was not wasted. The knowledge was local. The names persist.
Global populations have collapsed from overfishing. The spiny dogfish can live for half a century. It grows slowly. It produces very few young. It is one of the most vulnerable sharks in the ocean. The biology is ill-suited to industrial extraction. The lifespan is long. The turnover is low. The recovery is difficult. In New Zealand it is managed under the quota management system. Size limits and catch limits apply. The regulations are strict. The pressure remains.
Recovery is extremely slow. The generations are spaced far apart. The loss of a breeding female has long-term consequences. The stock does not bounce back. It creeps forward. Inch by inch. Year by year. The management attempts to balance use and conservation. The balance is precarious. The global context is dire. Many regions have seen collapse. New Zealand fares better. But not well. The trend is downward. Or static. At best.
A venomous shark with many names. Sold as something else on a plate. Fighting for survival in a world that fishes too hard. That is the spiny dogfish. And it is not fine. The situation is critical. The response is measured. The outcome is uncertain. The shark carries on. With its spines. With its slow growth. With its vulnerability. It persists. For now.