Cichlid Fish Secrets

Cichlid Fish Secrets

There is an amazing, brand new ebook called Cichlid Fish Secrets. It covers everything you could possibly need to know about keeping healthy, happy cichlids, and breeding them as well. Here is just a preview of what you'll learn in this book: What size tank you should have when keeping cichlids. What filter you should use in your tank. How to properly cycle your aquarium. How to properly manage pH levels. The water temperature you need to maintain. The correct way to perform a water change. How to clean the glass of your fish tank. How to be an expert water tester. The Best rocks and wood you Need to be using. The right ways to prepare your rocks & wood for your tank. The only way to have live plants in an African Cichlid tank. How to choose the right cichlids. What to feed your cichlids & how often to feed them. The expert ways to breed your cichlids. How to diagnose, treat, and cure the most dangerous fish diseases.

Cichlid Fish Secrets Summary

Rating:

4.6 stars out of 11 votes

Contents: Ebook
Author: Mike Logan
Price: $27.77

My Cichlid Fish Secrets Review

Highly Recommended

I've really worked on the chapters in this ebook and can only say that if you put in the time you will never revert back to your old methods.

In addition to being effective and its great ease of use, this eBook makes worth every penny of its price.

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Note on Natural Communities

Freshwater South American fishes belong to the Neotropical ichthyofauna, which contains 5000-8000 different species. The native populations are mostly dominated by five major groups siluriforms, characi-forms, gymnotiforms, cyprinodontiforms and cichlids. The Amazon Basin is home of the largest fish diversity on Earth, with over a thousand different species. The Orinoco, Parana, and other large, tropical river basins are also rich in fish species. In contrast, fish diversity drops sharply in the watersheds that drain into the Caribbean Sea and the Pacific Ocean. In the temperate region, fish diversity is also lower and the taxonomic composition differs markedly from subtropical and tropical areas.

Interaction of Threats and Ecosystem Disservices

The introduction of exotic species further illustrates the concept of the interaction of threats and ecosystem disservices. Exotic species introductions create less visible but ecologically and sometimes economically important problems. Introductions of non-native fish to improve fisheries for sport or to provide protein for human consumption have led to the wholesale collapse of local biological communities and aquatic food webs. The negative impacts on ecosystem functions that rely on intact food webs, such as decomposition, biogeochemical cycling, and overall productivity, will likely affect water quality, other fisheries, and hence a number of other services. The introduction of a predatory cichlid into Gatun Lake in the Panama Canal (Paine & Zaret 1973) and the introduction of Nile Perch into the African rift valley lakes (Kitchell et al. 1997) are two cautionary cases. The zebra mussel (Dreissena polymorpha) is perhaps the most famous and pervasive invading freshwater exotic....

Biodiversity and Conservation

The inability of cichlid to cross valleys is exemplified by the proliferation of Pseudotropheus species and or subspecies in Lakes Tanganyika and Malawi. It is contended that this might have contributed to species radiation, coupled with lake level changes. It is generally accepted that reported numbers are an underestimate and 11 families have been identified with Cichlidae being the most speciose. The Lake Tanganyika fauna is less speciose, with a total of 16 families and more than 200 cichlid species. Lake Victoria is estimated to have been inhabited by more than 500 species, which have since declined, some becoming completely extinct through predation and competition from introduced Nile perch (Lates nilo-ticus) and Oreochromis niloticus, respectively. The introduction of Lates niloticus and Oreochromis niloticus into Lake Victoria has led to the disappearance of more than 200 endemic species within a relatively short space of time of ten years. Arguably, this represents the...

Zooplankton

Sardella on Chaoborus during daytime offers little pressure on this zooplankton. Thus Chaoborus edulis larvae are known to dominate zooplankton of Lake Malawi, and are also found in other rift valley lakes of similar trophic structure. However, Chaoborus are absent from Lake Tanganyika, where instead protozoa like Strombidium cf. viride and their symbionts are prevalent. In Lake Victoria, swarms of emergent insects have in recent years increased owing to changes in niche structure as a result of a population crash experienced with native cichlids. In turn, this has resulted in the population explosion of the sand martin, Riparia riparia.

Fish Fauna

Species diversity By far, the most studied organisms in African lakes are Cichlid fish species. Because many are of recent origin, morphometric differences might The Siluriformes have relatively high diversity with respect to number and shape of chromosomes, exemplified by Aeuchenoglanis and Bagrus (2n 54 or 56), Chrysichthys and Clarotes (2n 70 or 72). At the population level, heterozygosity (H h r) of Chrysichthys maurus, Chrysichthys auratus, and Clarotes laticeps is high. The chromosomes number is higher in these catfishes than in Clarias gariepinus from Asia and Africa that exhibits stable karyotype. Within the major groups of cichlids, there appears to be no relationship between karyotypic diversity and phylogeny.

Food Web Manipulation

For fisheries enhancement purposes, nonnative species have been introduced into waters across the world. Subsequent consequences for food web composition were often unforeseen, as exemplified by the case of Lake Victoria. Here, introduction of the nile tilapia and nile perch brought species rich communities of native cichlid fish to extinction, but subsequent overfishing of these target species may well have led to recovery of some of these native species. In highly eutrophic lakes purposeful alterations of this community involve increases in piscivorous predators and decreases in benthivores and planktivores. The reduced predation on zooplankton and reduced sediment resuspension have led to drastic reductions in turbidity, and clear water (Secchi disk transparency > 1m) is an important target for lake management.