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Odpri aplikacijoOpis
Trisopterus minutus, commonly known as the Poor Cod, is a small, demersal gadiform fish belonging to the family Gadidae. It is characterized by its relatively slender body, large eyes, and three distinct dorsal fins and two anal fins. This species is often found in coastal waters over sandy or muddy bottoms, playing an important ecological role as both a predator of small invertebrates and a prey item for larger fish.
Fizične značilnosti
- Oblika telesa
- elongated
- Obarvanost
- Dorsal side typically yellowish-brown to greyish-brown, often with darker mottling or blotches. Flanks are paler, transitioning to silvery-white on the belly. A distinct dark spot is usually present at the base of the pectoral fin.
- Vrsta lusk
- cycloid
- Položaj ust
- terminal
- Razpoznavne značilnosti
- Three dorsal fins and two anal fins, characteristic of the Gadidae family., Relatively large eyes., Small barbel on the chin, though often very short and sometimes difficult to discern., Dark spot at the base of the pectoral fin.
- Hrbtna plavut
- Three separate dorsal fins. The first is short, the second and third are longer and similar in height.
- Repna plavut
- Caudal fin is truncate or slightly emarginate.
- Prsna plavut
- Pectoral fins are moderately long.
- Razpoznavne plavuti
- Pelvic fins are elongated, with the first ray often extended.
Nasveti za prepoznavanje
Fin Count
Count three distinct dorsal fins and two anal fins. This immediately places it within the Gadidae family.
Pectoral Fin Spot
Look for a prominent dark spot at the base of the pectoral fin. This is a key distinguishing feature from some similar species.
Chin Barbel
Observe the chin for a small, often inconspicuous barbel. While present, it is much shorter than in species like the Cod (Gadus morhua).
Body Shape and Size
Note its relatively slender body and small adult size, typically not exceeding 25 cm in length.
Habitat
- Vrsta vode
- saltwater
- Globina
- Typically found at depths ranging from 10 to 200 meters, occasionally shallower or deeper (up to 440 meters).
- Okolje
- Demersal, inhabiting coastal and shelf waters over sandy, muddy, or gravelly bottoms. Often associated with seagrass beds or areas with shell debris.
- Geografska razširjenost
- Northeastern Atlantic Ocean, from the Barents Sea and Norway south to the Mediterranean Sea and the coast of Northwest Africa (Mauritania). Also found in the Black Sea.
Podatki o akvariju
- Stopnja zahtevnosti nege: expert
- Temperament: peaceful
- Prehrana: carnivore
- Najmanjša velikost akvarija: Not suitable for typical home aquaria due to specific environmental needs and size.
- Temperatura: 8-18°C (46-64°F)
- Vrednost pH: 7.8-8.4
- Trdota vode: High (marine salinity)
- Združljivost: Not typically kept in aquariums. If attempted in a specialized coldwater marine setup, it would require tank mates tolerant of similar conditions and not large enough to prey upon it.
- Posebne zahteve: Requires a large, specialized coldwater marine aquarium with excellent filtration, stable salinity, and a substrate mimicking its natural sandy/muddy habitat. Not recommended for hobbyists.
Podatki iz narave
- Status ogroženosti: least concern
- Sezonskost: Present year-round, but often more abundant in shallower waters during warmer months and deeper waters in winter.
- Tržna cena: Low
- Komercialni pomen: low
- Okus: Mild, delicate
- Tekstura: Soft, flaky
- Načini priprave: Frying, Steaming, Baking, Soups
- Hranilna vrednost: Good source of lean protein and omega-3 fatty acids.
Ključna dejstva
Smallest of its Genusinteresting
Trisopterus minutus is generally the smallest species within the genus Trisopterus, rarely exceeding 25 cm in total length.
Ecological Rolebehavior
Despite its small size, the Poor Cod plays a significant role in marine ecosystems as a key link in the food chain, consuming small crustaceans and polychaetes, and in turn being preyed upon by larger fish, seabirds, and marine mammals.
Rapid Growth and Short Lifespanbehavior
This species exhibits rapid growth and a relatively short lifespan, typically living for only 2-3 years, which contributes to its resilience to fishing pressure.
Nocturnal Foragerbehavior
Poor Cod are primarily nocturnal foragers, becoming more active at night to feed on benthic invertebrates.
Varnostne informacije
Varna- Stopnja varnosti: safe
- Strupena: Ne
- Užitnost: edible
- Opombe o ravnanju: No specific handling precautions are required beyond standard fish handling practices to avoid fin pricks. Not venomous or dangerous.
Podobne vrste
Pout
Trisopterus luscus
T. luscus (Pout) has a much longer and more prominent chin barbel, a deeper body, and typically lacks the distinct dark spot at the pectoral fin base that T. minutus possesses. T. luscus also generally grows larger.
Norway Pout
Trisopterus esmarkii
T. esmarkii (Norway Pout) has a more slender body than T. minutus, a smaller mouth, and a very short or absent chin barbel. Its lateral line is also more distinctly curved over the pectoral fin.
Whiting
Merlangius merlangus
Whiting lacks a chin barbel entirely and has a more elongated, silvery body. Its first dorsal fin is also typically taller and more pointed than in T. minutus.
Znanstvena klasifikacija
- Kraljestvo
- Animalia
- Deblo
- Chordata
- Razred
- Actinopterygii
- Red
- Gadiformes
- Družina
- Gadidae
- Rod
- Trisopterus
- Vrsta
- Trisopterus minutus
Raziščite Poor Cod
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