There are no effective ways to control invasive mussels or spiny water fleas. Something else that I am sure you’ll find fascinating is how spiny water fleas reproduce. However, the species tend to gather in masses on fishing lines and downrigger cables, so anglers may be the first to discover a new infestation. Spiny water fleas disrupt the biodiversity of lakes they invade by out competing and consuming large numbers of the native zooplankton,creating an imbalance that ripples throughout the entire food chain. Spiny water fleas entered the Great Lakes in ship ballast water from Europe, arriving in the 1980s. Part of spiny water fleas’ success is due to their ability to reproduce rapidly — they mature and reproduce within about one week. Oh, did I mention, spiny water fleas recently invaded Mille Lacs Lake, along with zebra mussels. With translucent bodies, only about ¼ to ½ inches in length, individual water fleas may go unnoticed. They live for several days up to two weeks. Fish don’t eat them: The flea’s barbed tail gets caught in the throats of fish, so fish spit them out. Oh, did I mention, spiny water fleas recently invaded Mille Lacs Lake, along with zebra mussels. In the fall, spiny water fleas will mate and lay “resting eggs”. In some species and under certain conditions, males — which are considerably smaller than females — … In fall, females mate and produce resting eggs … Female spiny water fleas can produce up to 10 offspring every two weeks during the summer months. They do it through a process known as parthenogenesis or asexual reproduction, which means that they are capable of reproducing without mating. During the summer months, the spiny water flea will reproduce through parthenogenesis. Something else that I am sure you'll find fascinating is how spiny water fleas reproduce. Spiny water flea reproduce quickly, up to 10 offspring female“clones” every 2 weeks These crustaceans reproduce rapidly. While young fish feed on zooplankton, they tend to avoid these two water fleas due to the long tail spine and barbs on the spine. The flea population grows quickly and is difficult to control, partly because their barb-like spines make them resistant to predators. Spiny water fleas can rapidly reproduce in summer because adult females can produce young without mating, when water temperatures are just right, at a rate of 10 young every two weeks. (518) 668-9700 info@fundforlakegeorge.org fundforlakegeorge.org A majority of the population is female and is capable of asexual reproduction as well as sexual reproduction. Researchers think that Great Lakes fishing equipment can spread the fleas between different lakes and streams, and stricter cleaning regulations may help. PATHWAYS/HISTORY: The first introductions of the spiny and fishhook water fleas They reproduce both asexually and sexually. The spiny water flea (Bythotrephes cederstroemi) is not an insect but a crustacean with a long, barbed trail.They are small and transparent, making it difficult to see them unless they occur in very large numbers. Only larger fish, greater than two inches, are able to eat them. Although capable of sexual reproduction, most spiny water fleas reproduce … Spiny water fleas are invasive in all Great Lakes and can withstand great environmental stress. They do it through a process known as parthenogenesis or asexual reproduction, which means that they are capable of reproducing without mating. Spiny water fleas can reproduce asexually during the summer, so only 1 individual is needed to start a population. Most water fleas are asexual and reproduce by parthenogenesis, which means embryonic growth and fertilization occur without requiring fertilization from a male. 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