The Importance of Detritic Funds for Fisheries

Nature is wise, many say, but we seldom pay attention to it. Today at PescaCosmar we will try to explain one of the factors that makes fishing more productive for sport fishermen; Detritus bottoms, home to thousands of species. From microscopic plankton to medium predators; Whose survival depends on the conditions of that fund. Avoiding damage to them becomes a difficult task since human toxic boats, nets and wastes are the first cause of their disappearances.

What are detrital bottoms?

Geology explains it in a simple way: Detritus bottoms are those bottoms that accumulate the organic sediment of the rocks. From erosion and weathering among other geological processes, the detrital material is displaced until it obtains areas with sinkings or reliefs. Forming sedimentary basins or rocks.

Types Of Detrital Bottoms

Sea conditions and currents define the type of background we can find.

Logically strong and fast currents move the detrital particles. Preventing them from accumulating easily. If the direction is cyclical, we would be in the presence of mobile bottoms, with a rather moderate index of fish. Only those who can adapt and feed themselves in such conditions.

On the contrary, when the movement of the sea is minimal with very gentle currents; The ideal conditions are created for the formation of stable detrital backgrounds, rich in organic material, vegetation, microscopic organisms, worms, crustaceans and fish.

The more time passes, the sediment grains come together to form larger grains until they get rocks, rocks or various surfaces.

Muddy and sandy bottoms are more common in bays or river estuaries, while bottoms of rocks, or reefs are obtained in coastal waters or seabed.

Conformation And Destruction Of The Detrital Bottoms

Natural processes of erosion, sedimentation and weathering of large cliffs, rocks, or layers of soil can help in the creation of detrital bottoms if conditions are adequate. However, other external factors could alter geology and destroy such funds, for the most part man is guilty of it.

Trawling is the main cause of seabed destruction. This rages on the ecosystem in broad strokes. The food chain is completely affected, preventing the reproduction and survival of many species.

Secondly we have oil and oil spills in landing areas. The damages in these cases, although they can be contained are extremely serious for the marine fauna and flora, being able to be irretrievable.

Rains, on the other hand, can increase organic wealth or contaminate detrital bottoms, all depending on the state in which the land is around the water. Of course in the ocean this does not occur, but in lagoons and estuaries near fields and towns; Which carry garbage, chemicals, nitrates and phosphates.

Once the funds have been polluted or destroyed, they lose their value as a fishing zone, the dams in principle diminish in size or become scarce according to

Fish And Fishing On The Detrital Bottoms

The longer a detrital fund has, the more life is generated in it. The vegetation grows and becomes richer, allowing a proliferation of small specimens, which attract other predators.

The fish that feed on these bottoms may vary according to the type of vegetation and fauna that has formed. Frequent and almost safe species are usuallyspáridos ; snappers, all species of bream, bream , bream, Samas, blacksmiths, bent, etc.

When it comes to great depths, it is not the spáridos who prey in the area, but species flat or anguiliformes. Dabs, turbot, plaice, torpedos, moray eels, congereels, etc. In intermediate zones pelagic fish are also quite common; Lisas, robalos, mullet, etc.

Other predatory species will come closer depending on your diet. Coastal fishprefer to feed on debris where the proliferation of sea worms and fleas is abundant. Deep-sea underwater fish choose to move closer to the bottoms where crustaceans live.

It is important that a fisherman knows the least bit of marine geology, to find the best areas. Some detrital beds are unattainable for the sport fisherman, or in any case; Limited to being protected or designated as bathing areas.

Detritus bottoms also function as a home for fry in its earliest stages of life. Since they are in the eggs, then while they feed on plankton, until they are large enough to emigrate. The detrital pool gives them a higher percentage of survival by offering greater protection from larger predators.

Tips For Sport Fishermen

Once we get into the matter, if we want to get good catch, the sandy and muddy bottoms come in the perfect range. Because they are usually accessible to fishermen, they are easy to locate when analyzing water currents, and usually have a considerable number of good-sized species both in the area and in adjacent areas.

In contrast, the hardest detrital bottoms are often quite problematic for ourgear, unless we are in the specific search for conger, sole or species of similar habitat.

But on this occasion, rather than recommending where to find these beds and how to tackle them in fishing, we want to emphasize their protection. Well we rely on them to make large size catches and quality. Without them, our sport is affected.

From direct pollution, to the construction of dams that stop the flow of water; We are the cause of a disaster in the marine flora and fauna. Let us be more aware when moving with our boats without care. Let us avoid throwing debris into the sea, and in short put our “grain of sand” in the bottom of the detritus.

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