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The pond also is home to various species of crab (pāpaʻi), shrimp (ʻōpae), and eel (puhi). [1] When they are small enough, fish enter the fishpond via the sluice gates to feed on phytoplankton and limu. [5] They then remain within it because of the abundance of food and become too large to get back into Kāneʻohe Bay via the sluice gates. [5]
The Hawaiian fishpond was primarily a grazing area in which the fishpond-keeper cultivated algae; much in the way cattle ranchers cultivate grass for their cattle. [3] The porous lava walls let in seawater (or sometimes fresh or brackish water, as in the case of the "Menehune" fishpond near Līhuʻe, Kauaʻi), but prevent the fish from escaping.
Koʻieʻie ("rapid current") is classified as a loko kuapa (walled pond), a type of fishpond that uses lava rock and coral walls (kuapa) to keep water circulating while a wooden sluice gate (makaha) allows small fish to enter the pond to feed, but prevents them from leaving after they grow too large to slip between the gate's gaps.
In some parts of Asia, swamp eels and one species of spiny eel, Mastacembelus erythrotaenia, are valued as food and sometimes are kept in ponds or rice fields. Except for a few mastacembelids, they are rarely seen in home aquaria. The fish have numerous sharp dorsal spines and belly thorns which, together with its sliminess make them extremely ...
Medieval fish pond still in use today at Long Clawson, Leicestershire. Records of the use of fish ponds can be found from the early Middle Ages. "The idealized eighth-century estate of Charlemagne's capitulary de villis was to have artificial fishponds but two hundred years later, facilities for raising fish remained very rare, even on monastic estates.".
A fishing weir, fish weir, fishgarth [1] or kiddle [2] is an obstruction placed in tidal waters, or wholly or partially across a river, to direct the passage of, or trap fish. A weir may be used to trap marine fish in the intertidal zone as the tide recedes, fish such as salmon as they attempt to swim upstream to breed in a river, or eels as ...
Lampreys / ˈ l æ m p r eɪ z / (sometimes inaccurately called lamprey eels) are a group of jawless fish comprising the order Petromyzontiformes / ˌ p ɛ t r oʊ m ɪ ˈ z ɒ n t ɪ f ɔːr m iː z /. The adult lamprey is characterized by a toothed, funnel-like sucking mouth.
These fish originate from Africa, and southern and eastern Asia. [3] Spiny eels generally inhabit soft-bottomed habitats in fresh and occasionally brackish water. Some species burrow in the substrate during the day or for certain months and have been found buried in soil in drying periods. [4] These fish have an eel-like body.