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This established that fish eggs could be pelagic, living in the open water column like other plankton. [4] Around the beginning of the twentieth century, research interest in ichthyoplankton became more general when it emerged that, if ichthyoplankton was sampled quantitatively , then the samples could indicate the relative size or abundance of ...
Largehead hairtails are elongated in shape with a thin pointed tail (they lack a fish tail in the usual form). The eyes are large, and the large mouth contains long pointed fang-like teeth. [3] Largehead hairtails grow to 6 kg (13 lb) in weight, [4] and 2.34 m (7 ft 8 in) in length. [2]
Under normal conditions, the Pacific tenpounder are located in brackish water, but they travel deep into oceanic, salty waters for breeding. They place their eggs far from shore in more planktonic regions to provide them with nutrients as juveniles. [2] The larvae look like eels at birth, but their forked tails distinguish them.
The eggs have an average diameter of 1 millimetre (0.039 in). The eggs are generally surrounded by the extraembryonic membranes but do not develop a shell, hard or soft, around these membranes. Some fish have thick, leathery coats, especially if they must withstand physical force or desiccation. These type of eggs can also be very small and ...
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The eggs hatch in 1–2 weeks, the young fry being 8–10 mm long. The actual incubation period of eggs varies depending on the water temperature, at 18.5–22.0 °C, incubation takes about 5 days, with the optimal temperature for embryonic development being in the range of 12–18 °C. [6]
Sardines. As you can see from this list, eating seafood is good for your hair, even the kind that comes in tine. Sardines are filled with hair-boosting nutrients like omega-3 fatty acids which may ...
The seadragons are slow-moving and, like most of their relatives, rely on excellent camouflage—the mimicry of seaweed, in this case—as a defense against predators. They lack the prehensile tail that many seahorses and pipefishes have evolved as anchors, to clasp and steady themselves; seadragons, instead, drift in the water among kelp and ...