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Hardhead catfish

Ariopsis felis

Nípa orúkọ náà: Its common name comes from a hard, bony plate on its head, which runs from between the eyes back towards the dorsal fin.1

Ó kàn ń dunniMá ṣe fọwọ́ kàn ánÓ ń dunni, ṣùgbọ́n kò ní ṣe ọ́ léṣe gidigidi.

Ẹja olóró

Ẹ̀gún olóróOúnjẹ rẹ̀: Díẹ̀ nínú ohun gbogbo

Ewu fún ènìyàn: Ó ń dunniÓ lè dunni gan-an, ṣùgbọ́n kì í fẹ́rẹ̀ẹ́ le rárá.

The hardhead catfish is a sea catfish that lives in shallow coastal waters of the northwest Atlantic and the Gulf of Mexico. It has sharp spines on its fins that can be venomous, so it is one to admire from a distance. Male hardhead catfish also carry their eggs in their mouths until they hatch.1

Ó ń gbé ní

Northwest Atlantic and Gulf of Mexico, from the southeast coast of the United States around the Florida Keys to the Gulf coast1

Òkun Àtìláńtíìkì, Ìyawọlẹ̀ Òkun Mẹ́síkò, Òkun Káríbíànù

Ilé

It is found mostly in near-shore ocean waters, and also in brackish estuaries and river mouths with sandy or muddy bottoms. It only occasionally enters fresh water. In winter it moves from shallower to deeper water.1

Gígùn

25 cm sí 70 cm (9.8 in sí 2.3 ft)1

Ìwúwo

5.5 kg (12 lb)1

Ìyára gíga jùlọ

nǹkan bí 6 km/h (3.7 mph)

Lílúwẹ̀ẹ́, àfojúbù

Kí ni ó máa ń jẹ?

It eats a wide range of food, including algae, seagrasses, crabs, shrimp, sea cucumbers, worms and small fish. It hunts on mud and sand flats, using its barbels to find prey in murky water. Younger fish eat small crustaceans, while adults mainly eat larger fish.1

Fọ́tò Hardhead catfish — Hardhead catfish. Fọ́tò: Edgar R. Waite. Public domain, Wikimedia Commons.

Bí o ṣe lè dá a mọ̀

Often dirty grey on top with white underneath.1
Four barbels (whisker-like feelers) under the chin and two more at the corners of the mouth.1
A hard, bony plate between the eyes and the dorsal fin.1
Sharp, barbed, slime-covered spines on the dorsal and pectoral fins. The dorsal spine stands upright when the fish is excited.1
Typically 25 to 30 cm long, and elongated in shape.1

A sábà máa ń ṣì í mọ̀ sí: The gafftopsail catfish looks very similar. The difference is that its dorsal and pectoral spines have a fleshy extension, like the fore-and-aft topsail of a ship.1

Agbára oró

Ẹ̀gún olóró

Ẹ̀gún mímú ló ń gbé oró náà. Títẹ̀ ẹ́ mọ́lẹ̀ tàbí dídì í mú máa ń dunni.

Báwo ló ṣe léwu tó fún ènìyàn?

Ewu fún ènìyàn: Ó ń dunniÓ lè dunni gan-an, ṣùgbọ́n kì í fẹ́rẹ̀ẹ́ le rárá.

No bite or death figures are given. Anglers generally avoid catching it because of the risk from handling the fish and its spines, and because its flesh tastes fishy compared with popular game fish.1

Kí ni ó máa ń ṣe nígbà tí ẹ̀rù bá bà á?

When it feels threatened or excited, its dorsal spine stands upright, and its sharp, slime-covered spines are its main defence.1

Bí ẹ̀gún rẹ̀ bá gún ọ

Fi ọgbẹ́ náà sínú omi gbígbóná, tó gbóná tó bí ẹni náà ṣe lè fara dà á láìjóná (fi ọwọ́ ara rẹ dán an wò), fún ìṣẹ́jú 30 sí 90. Wá ìrànlọ́wọ́ ìṣègùn, pàápàá fún ẹja òkúta àti stingray.

Máa kọ́kọ́ pe nọ́ńbà pàjáwìrì rẹ nígbà gbogbo (112, 000, 911). Èyí jẹ́ ìtọ́sọ́nà ìtọ́jú àkọ́kọ́ gbogbogbò, kì í ṣe ìmọ̀ràn ìṣègùn. Ìpìlẹ̀ ìtọ́jú àkọ́kọ́

Wà láìléwu

Má ṣe fọwọ́ kan, mú tàbí yọ ẹranko igbó lẹ́nu láéláé, kódà bí ó bá kéré, kódà bí ó bá dà bí ẹni pé ó ń sùn tàbí ó ti kú.
Fún un ní àyè. Bí o bá pàdé ọ̀kan, farabalẹ̀, sẹ́yìn díẹ̀díẹ̀ kí o sì jẹ́ kí ó máa bá ọ̀nà rẹ̀ lọ.
Bí ẹ̀gún rẹ̀ bá gún ọ: farabalẹ̀, má ṣe mira, pe nọ́ńbà pàjáwìrì rẹ (112, 000, 911) tàbí lọ sí ilé ìwòsàn kíákíá. Rántí bí ó ṣe rí, fọ́tò máa ń ṣèrànwọ́.

Kò wá ọ kiri láti ṣe ọ́ léṣe. Ó ń lo oró rẹ̀ láti mú oúnjẹ tàbí láti dáàbò bo ara rẹ̀, ó sì fẹ́ràn láti farapamọ́ jù. Sí i nípa wíwà láìléwu

Níbo ní ayé?

Áfíríkà Éṣíà Yúróòpù Àríwá Amẹ́ríkà Gúúsù Amẹ́ríkà Ọsirélíà àti Òṣéáníà Òkun Àtìláńtíìkì Òkun Káríbíànù Ìyawọlẹ̀ Òkun Mẹ́síkò

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

Báwo ló ṣe wúwo tó?

ó wúwo tó ológbò ilé 1.5

ó gùn tó ọ̀gẹ̀dẹ̀ 4 tí a tò tẹ̀léraó wúwo tó ológbò ilélè lúwẹ̀ẹ́ gígùn adágún ìwẹ̀ ńlá (50 m) ní ìṣẹ́jú-àáyá 30

Báwo ni Hardhead catfish ṣe tóbi tó tí a bá fi wé ÌWỌ?

Ìṣirò nìkan nínú bráwúsà rẹ. A kò fi ohunkóhun pamọ́, a kò sì fi ránṣẹ́ sí ibikíbi.

Báwo ló ṣe yára tó?

Ènìyàn tó ń lúwẹ̀ẹ́ nǹkan bí 3 km/h (1.9 mph)

Hardhead catfish nǹkan bí 6 km/h (3.7 mph)

Olùwẹ̀ Olympic nǹkan bí 8 km/h (5 mph)

ó yẹ ní mímọ̀

Òtítọ́

Male hardhead catfish are paternal mouthbrooders: they keep the eggs and young in their mouths, and do not feed while doing so.1

Some researchers suggest they may use low-frequency sounds to detect and avoid close obstacles, which is an unusual ability for a fish.1

They can make sounds by vibrating thin bones near the swim bladder, and by grinding their throat teeth or rubbing their pectoral spines. These sounds appear to be a fright response.1

Hardhead catfish respond to chemical alarm signals released by injured members of their own species, with their activity increasing right after the signal. They are the first marine catfish found to show this type of alarm reaction.1

They can live for over 24 years.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì: Ariopsis felis
Ẹgbẹ́: Ẹja olóró
Ìdílé: Ariidae2
Ètò: Siluriformes
Àwọn kọ́ńtínẹ́ńtì: Òkun Àtìláńtíìkì, Ìyawọlẹ̀ Òkun Mẹ́síkò, Òkun Káríbíànù, Àwọn òkun ńlá
Àwọn ọmọ: The male carries the eggs in his mouth until they hatch, which takes roughly 8 to 11 weeks in total. Females have 20 to 65 eggs per spawning.1
Ọjọ́ ayé: nǹkan bí ọdún 241
Ewu fún ènìyàn: 2 / 5: Ó ń dunni3

Ibi tí àwọn òtítọ́ ti wá

Hardhead catfish (Wikipedia (CC BY-SA 4.0))
Ariopsis felis (iNaturalist): orúkọ àti ìpínsísọ̀rí.
Venom Wiki: ìpele ewu, ìtóbi déédé àti àfojúbù ìyára jẹ́ tiwa. Wo bí a ṣe ń ṣírò wọn: Bí a ṣe ń díwọ̀n ewu.

Gbogbo òtítọ́ ojú-ìwé yìí ní nọ́ńbà tó tọ́ka sí orísun rẹ̀. Bí a bá ṣe àṣìṣe, má bínú, olólùfẹ́ ẹranko ni wá, kì í ṣe ìwé ìròyìn sáyẹ́ǹsì. Sọ fún wa ní [email protected] a ó sì tún un ṣe.

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