![]() ![]() But unlike most sharks, dogfish are also venomous. In New Zealand we seem to have a dislike for shark flesh but maybe we are missing out on a good tasty food source. Like all sharks, dogfish have skin that is covered in tooth-like scales called denticles. The white fillets are firm and boneless, and if frozen as soon as possible after being caught, they can be cooked by all methods. Overseas, in many countries, the spiny dogfish is considered to be a good food fish. Their life span can be between 60 and 100 years. blood, and water-oluble proteins and minerals was decanted. The flesh was allowed to settle for about 10 minute the supernatant containing fat. Their pregnancy can last up to two years, the longest of any vertebrate. and seven part by weight of water chilled to 32☏ were stirred with a large paddle until thoroughly mixed. Spiny dogfish break records when it comes to gestation. Most likely, this young dogfish would not have survived for long in the open sea but it was interesting to observe that, even with the yolk sac attached, it could swim very well. This was obviously a premature birth as the young dogfish usually remain in the mother until the yolk sac is absorbed. Soon after it was released from the hook, this spiny dogfish gave birth to the young dogfish with its yolk sac still attached. These sharks were so plentiful that it was almost impossible to catch a cod as the dogfish seemed to be able to get to the bait first. This particular dogfish was one of many that were caught on a line while folk were fishing for blue cod. When captured it can use these spines very effectively by arching its back and piercing the skin of its captor.Īt the base of the spines is a gland that secretes a mild venom and this can cause some discomfort to humans.
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