Animals

15 Fin-tastic Facts About The Silver Warehou For Kids

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The silver warehou (Seriolella punctata) is a species of fish found in the southern Indian and southern Pacific Oceans. It is part of the family Centrolophidae and is also called medusafish. This fish is known by many common names such as spotted warehou, spotted trevally, spotted trevalla, snotty nose trevally, and mackerel trevalla. Although this fish is now abundantly found, these fish are often caught by commercial fishery and if proper management techniques are not used, the sustainability of this species may be affected. To catch this fish, you need to search the sea bed as it is usually caught by fisheries in this area.

This fish is common in the South Island and Chatham Rise of New Zealand. The fish is known to migrate along the continental slope off the east and south east coast of the South Island. This species is often caught by fishing in the Commonwealth Trawl Sector of the Southern and Eastern Scalefish and Shark Fishery. The blue warehou is also found in New Zealand and sometimes Australia.

The silver warehou is a medium-sized fish found in demersal on the continental shelf and slope water area. The fish can be identified by the blackish spots on the mid-belly of a blue-gray and silvery-white body. Juveniles and sub-adults usually have a yellow mid-lateral stripe. A faint yellow stripe along the base of the dorsal and anal fins is also seen in juveniles.

For more relatable content, check out these channel catfish facts and midas blenny facts.

Silver Warehou

Fact File

What do they prey on?

Pelagic invertebrates, pyrosomes, and different tunicates

What do they eat?

Carnivore

Average litter size?

1.6 million eggs

How much do they weigh?

12.12 lb (5.5 kg)

How long are they?

27.5 in (69.8 cm)


How tall are they?

N/A


What do they look like?

Silvery blue color with pale sides and silver-white below

Skin Type

Wet and slimy scales

What are their main threats?

Fishing for flesh and bycatch

What is their conservation status?

Not Evaluated

Where you'll find them

Oceans

Locations

Southern Indian Ocean and southern Pacific Ocean

Kingdom

Animalia

Class

Actinopterygii

Scientific Name

Seriolella punctata

Family

Centrolophidae

Genus

Seriolella

Silver Warehou Interesting Facts

What type of animal is a silver warehou?

The spotted trevally, spotted trevalla, or silver warehou is a medusafish of the family Centrolophidae. It belongs to the same order Scombriformes as the popular Spanish mackerel and Indian mackerel. It is similarly caught for its flesh and used as food all over the world.

What class of animal does a silver warehou belong to?

This species belongs to the class of Actinopterygii in the kingdom of Animalia.

How many silver warehous are there in the world?

The total population of the species is not known. They are abundantly caught in New Zealand and Australia and are found in most markets around their distribution range. These fish are also often taken as bycatch. This species is regarded as an important commercial species and there are concerns about the impact bycatch will have on its population.

The population of blue warehou is said to have depleted due to this fish being caught in fishing nets. The sustainability of this species has been threatened and various stock assessments have been taken. However, it is impossible to entirely avoid blue warehou in the sea, so it is likely they will be caught as bycatch.

Where does a silver warehou live?

The medium-sized silver warehou is found in the South Island and on the Chatham Rise at depths between 656-2624.6 ft (200-800 m) in New Zealand. According to stock assessments, the catch is mostly observed in Chatham Rise, Canterbury Bight, the west coast of the South Island, and south east of Stewart Island.

The species is known to migrate along the continental slope off the east and south east coast of the South Island.

Blue warehou and the spotted warehou are a commonly seen in the New Zealand fillet market as both these fishes have become quite popular over the years. The blue warehou belongs to the same genus as the silver warehou. The blue warehou, also known as common warehou, is found in southern Australia and around New Zealand.

What is a silver warehou's habitat?

The silver warehou habitat includes the continental shelf and slope water area of the sea habitats. In this continental shelf and slope waters, the fish is found in depths of 164-1968.5 ft (50-600 m). Juveniles occur offshore and medium-sized adults are demersal. Juveniles move inshore and are found in bays and inlets and then they move to deep water areas of the sea as they grow older.

This is a bottom-dwelling species found on sea beds.

Who do silver warehous live with?

The spotted trevally is a schooling species and is found feeding at the bottom of the sea.

How long does a silver warehou live?

The usual lifespan of a silver warehou is about 15 years, although the lifespan can be lower depending on the food and habitat. The average age is about eight years. This fish may not reach its full potential as bottom-dwelling fish of medium size are caught to cook its fillets.

How do they reproduce?

Around 1.6 million silver warehou eggs are laid by the female in a season. Sexual maturity is reached in four years and spawning usually occurs in winter-early spring.

What is their conservation status?

The conservation status of the spotted trevally is Not Evaluated. However, it is a popular catch in the region for its flesh and the population seems to be decreasing due to fewer management procedures. However, nowadays the catch limit is managed and fisheries cannot go beyond that. Blue warehou have become bycatch and this has depleted their numbers due to fishing.

Regularly fishery stocks are checked to estimate the stocks remaining. This helps in management and sustainability. This assessment of fishery stocks also helps in judging future stock sizes and catch limits for fishing. The stock management is supervised by the Ministry for Primary Industries using the New Zealand Quota Management System. They regulate the total allowable catch.

The stock is mainly depleted for the flesh and fish fillets which are very popular in the region and found in almost every store.

Silver Warehou Fun Facts

What do silver warehou look like?

The size of this fish is medium and it has a slender body with a longer length. A bluish gray coloration is seen above with silvery-white below and there are many spots along the sides. There is a dark blotch in the form of a bar above the pectoral fin.

* Please note that this is an image of a cichlid. If you have an image of a silver warehou, please let us know at hello@kidadl.com.

The silver warehou is a medium sized fish.

How cute are they?

They are considered quite cute.

How do they communicate?

Fishes communicate tactically and chemically.

How big is a silver warehou?

The length of the fish is around 27.5 in (69.8 cm). They are commonly caught at a length of 13.7-21.6 in (35-55 cm). The length of the blue warehou from Australia and New Zealand has a range up to 29.5 in (75 cm).

The giant trevally (Caranx ignobilis) found in tropical and sub tropical waters of Africa, the Indian Ocean, the Pacific Ocean, Australia, the Hawaiian Islands, and the Ogasawara Islands has a range of length of up to 66.9 in (1.7 m).

How fast can a silver warehou swim?

The speed of this fish is not known.

How much does a silver warehou weigh?

The weight of this species is up to 12.12 lb (5.5 kg).

What are the male and female names of the species?

A silver warehou male and a silver warehou female are not given different names. They are known commonly by the names spotted warehou, spotted trevally, spotted trevalla, snotty nose trevally, trevally, and mackerel trevalla.

What would you call a baby silver warehou?

A silver warehou baby does not have a specific name. Similar to other species of baby fish, a baby silver warehou is called a fry.

What do they eat?

The silver warehou diet consists of pelagic invertebrates, pyrosomes, and other tunicates. Blue warehou are known to feed on salps, krill, crabs, and small squid. This fish species is found at depths of 65.6-656 ft (20-200 m).

Are they poisonous?

They are not poisonous and are quite a popular food option in many parts of the world.

Would they make a good pet?

They are not considered pets. They are a regular catch of fishing in the area of occurrence and people enjoy their flesh for cooking.  

The firm, white flesh fillets with high-fat content are used for cooking in the form of baked, fried, poached, steamed, grilled, and barbecued.

Did you know...

Predators of the spotted warehou include marine mammals, larger fish, sharks, and seabirds.

The silver warehou name is quite common in many households across its range as both this fish and the blue warehou are the fillets of these fish are commonly eaten in New Zealand.

What adaptations do silver warehou have?

They grow quite quickly which helps in the catching and selling of these fishes.

Is silver warehou edible?

Yes, they are great fish to eat and can easily be found at the market in New Zealand or Australia. They can be baked, fried, poached, steamed, grilled, or barbecued.

Here at Kidadl, we have carefully created lots of interesting family-friendly animal facts for everyone to discover! For more relatable content, check out these pilchard facts and freshwater drum facts for kids.

You can even occupy yourself at home by coloring in one of our free printable fish outline coloring pages.

* Please note that the main image is a butterfly fish. If you have an image of a silver warehou, please let us know at hello@kidadl.com.

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