0
If you kill a Murray cod, you can tell if they are male or female by cutting them open and by looking at their gonads, which are their reproductive organs. However, this is a very bad idea considering how rare Murray cod are. If you are not prepared to kill a Murray cod, you will not be able to tell if it is male or female, either by size or appearance, for most of the year. (Male and female Murray cod look the same and grow to basically the same size.) However, for several months in late winter/early spring female Murray cod can be recognised because their belly region will be noticeably swollen with the large eggs they are carrying and their vent will be swollen and purple or red.
Add your answer:
Earn +20 pts
How big can a Murray cod grow?
Murray cod can grow up to 1.8 meters (6 feet) in length and weigh over 100 kilograms (220 pounds), making them one of the largest freshwater fish in Australia. They typically reach maturity at around 4-5 years old.
How cod sperm and egg cells meet?
Cod sperm and egg cells meet during fertilization, which occurs externally in the water. When the female releases her eggs, the male releases his sperm to fertilize them. The sperm swims towards the eggs and fertilizes them by fusing with the egg cell membrane, resulting in the formation of a fertilized egg.
What human body part was referred to as cod?
In Shakespearean times a Cod Piece was an insert worn by men in their britches to imply that they were quite well endowed in the genital area. Put bluntly ... a male 'falsie.'
Does cod have zinc in it?
Zinc can be found in servings of cod. It can also be found in cod live oil.
What is the giant fishhook of land in Massachusetts called?
The Cape Cod Peninsula is the fishhook of land in Massachusetts.
When was Murray cod created?
Murray cod was created in 1838.
Where does the Murray Cod live?
A Murray Cod is a type of fish, common to Australia.
Is the Murray cod endangered?
The Murray cod is a fish that only lives in the Murray-Darling River system. Although they are called cod, they aren't related to the northern hemisphere cod. The Murray cod's conservation status is Vulnerable. They are threatened because of previous overfishing, as well as dams, and introduced carp and illnesses.
What does Murray cod eat?
Where are people getting their information for this. The Murray cod doesn’t live anywhere else beside the Murray river . Really? Lol.
Do Murray cod eat people?
no.
Has a Murray Cod got a vertebrate or a in vertebrate?
Vertebrate :)
What is the name of the adult swan?
Female "pen", male "cob".
What happens to the Murray cod when water salinity are increase?
Murray cod are actually very tolerant of rising salinity levels. As a matter of fact, aquariums which keep Murray cod add small amounts of ordinary sea salt to the water because it imrpoves the health of the fish and minimises bacteria in the water.
What actors and actresses appeared in Murray Cod Tactics - 2008?
The cast of Murray Cod Tactics - 2008 includes: Bill Classon as Himself - Presenter Rod Harrison as Himself - Presenter
In what Australian river are Murray cod found?
Murray cod (Maccullochella peelii peelii) only occur naturally in the Murray-Darling river system. They were originally present in almost all parts of the Murray-Darling system. They once occurred in surprisingly small streams before they were silted and degraded by bad farming practices, and contrary to popular belief, originally occured in cool, quickly flowing upland rivers to quite high altitudes. Murray cod still occur in some high altitude upland rivers in northern NSW. Murray cod have been introduced to some river systems outside of their natural range. Murray cod also manage to cross the Great Dividing Range into the Clarence River system between 1 and 2 million years ago in a natural river capture event, where a Clarence tributary cut into and captured the upper reaches of a Murray-Darling tributary. However, the cod that got into the Clarence River system have evolved into a separate species of cod called Eastern Freshwater Cod (Maccullochella ikei) or Eastern Cod for short. Through this mechanism cod also colonised the Richmond, Brisbane and Mary River systems, also likely to have been between 1 and 2 million years ago. Richmond and Brisbane River cod are now extinct. Mary River cod survive today but are endangered, as are Eastern cod. Murray cod are also considered threatened.
What are the adaptations of a Murray cod for survival?
Murray cod can live in surprisingly different habitats. Contrary to popular belief, Murray cod can live in quite cool, clear, rocky fast-flowing streams at medium, high and sometimes even very high altitudes. These are what are called "upland" rivers. Many populations of Murray cod in upland streams have died out, but some still exist. Murray cod also survive in warm, slow rivers on the riverine plains. These are what we call "lowland" rivers. Murray cod also survive well in lakes and reservoirs of all kinds, though they do not seem to breed successfully in them. In rivers Murray cod require a little bit of depth, and shelter in the form of rocks and rock structures in upland rivers, or sunken timber in lowland rivers. Murray cod will generally not survive in rivers that have been severely silted up with sand or silt as there is no depth or structure for them. Riparian (river bank) vegetation is quite important too. Removing snags has left many rivers without Murray cod habitat. While Murray cod can survive naturally cool streams, they cannnot survive thermal pollution, where big reservoirs release freezing water from their base and make rivers unnaturally cold for several hundred kilometres downstreams.
Is there a map inside the skin of a Murray cod?
No. It just has a pattern on its skin.
