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Do baby fish have the same biological classification as their adults?
Q. How many different kinds of baby fishes live in Canada?
A. There about 750+ species of fish in Canada. The freshwaters of Canada contain about 180 species of fish; the contiguous Atlantic Ocean waters of Canada contain about 260 species of fish; and the contiguous Pacific Ocean waters contain about 330 species of fish. This Web site describes 25 species of freshwater baby fish or ca. 14% of known species in the area; 25 species of Atlantic Ocean baby fish or ca. 10% of known species in the area and 25 species of Pacific Ocean baby fish or ca. 8% of known species in the area. Eventually, additional species of fish will be identified in Canadian waters so these numbers will increase slightly in time. Most species of fish in Canadian waters are already known so it will only be a few additional species. From past knowledge and experience of fishery biologists, it is to be expected that the specific abundant species today will change as the environment in Canadian waters change.
How are baby fish caught?
See: Collection Methods
How big are baby fish?
What do baby fish eat?
Where do baby fish live?
See: Development of Fish
See: Baby Fish Anatomy
A. In order to fix or harden baby fish when taken alive from some collecting device in the field, straight unbuffered formalin (40% formaldehyde solution) may be poured into the collecting bottle with the mixed collection of plankton and baby fish. With this procedure, live or dying fish will be killed and fixed rapidly, often violently in the strong formalin. When using a live trap, a slurp gun or a minnow net, it may be preferable to first euthanize the baby fish with an overdose of an anesthetic such as MS-222 or Tricaine and then transfer them into dilute formalin or a high percentage alcohol.
Baby fish can also be directly fixed and preserved, without formalin, by dehydration in straight or a very high percentage alcohol solutions (95 – 100% ethanol); especially necessary if the tissues might be eventually used for DNA analyses. However, put into alcohol at any stage, the tissues of baby fish will become opaque, shriveled, shrunken, and hardened, sometimes to the point of becoming brittle. It is preferable to have baby fish stored for long periods in 2 separate solutions, 1) a 13% phosphate-buffered solution of dilute formalin for morphological studies and 2) a high percentage alcohol solution for DNA studies. After fixation, some collection managers, inspite of these results, prefer to transfer the now formalin-fixed baby fish to alcoholic solutions (typically 40% or 50% isopropanol or 70% ethanol) for long-term preservation along side standard ichthyological collections.
And finally, one might consider storing illustrations or photographs of baby fish in light-tight museum-type containers for certain morphological studies in the future. Examine carefully the black and white illustrations on this web site for consideration.
Q. Where are good larval fish collections being held?
Q. Where did the information on these baby fish in this Web site come from?
A. The information on these baby fish came from a variety of sources. I was personally involved in the search for and identification of numerous species of North American baby fish. I spent most of my time in freshwaters because of convenience and lack of researchers. However, I spent some time with Atlantic and Pacific species, too. The page of references shows most of the published literature used to produce this Web site.
See: List of References
Yes, several species of fish are caught with seines and tow nets in several parts of the world, i.e. Europe and Asia, and utilized as human food. They are caught, cleaned, boxed and shipped for consumers. They are consumed in several different ways, mixed in salads, sandwiches, sauces and other preparations.
About the the Early Life History Section: The Early Life History Section (ELHS) is an interest- discipline subunit of the American Fisheries Society (AFS). It is the only organization of this kind devoted to interests in the early life history of freshwater, estuarine, and marine fishes, and related matters. Through their newsletter, Stages, and their Web page, they encourage and facilitate exchange of knowledge and ideas, update members on current research, publications, meetings, and other events, provide feature articles and reviews and communicate Section and pertinent AFS business and concerns. The exchange of knowledge and ideas are also faciltated through (1)the annual Larval Fish Conference, (2)special symposia, sessions, and workshops usually held as part of annual AFS and other meetings, and (3)conference and symposium publications. Through ad-hoc committees, they provide useful reference and educational products. For direct contact with other members, they provide a periodically updated membership directory.
History of the Early Life History
Section: Formation of the Early Life History Section
was unanimously authorized by the general membership of the American
Fisheries Society during the 1979 American Fisheries Society annual
meeting in West Yellowstone, Montana. Bylaws were proposed and
approved the following year, and the Early Life History Section
was officially sanctioned on 22 September 1980 at the American
Fisheries Society annual meeting in Louisville, Kentucky. Early
Life History Section membership rapidly grew to over 300 and were
granted voting membership on the American Fisheries Society's Executive
Committee (now the Governing Board). The annual Larval Fish Conferences
serve as the focal point of Early Life History Section activities
which evolved from a series of informal, freshwater-oriented, symposia
that began in 1977. The current Larval Fish Conferences, which
are hosted and sponsored by various organizations throughout North
America (occasionally overseas), cover a broad international spectrum
of freshwater, estuarine, and marine topics related to fish early
Also, see: The Web site: LarvalBase