CATDOLL : CATDOLL: How to compile a fish key? How to read a fish key?

1. How to compile a fish index table?

When compiling a fish key, you need to consider the following aspects:

1. Classification: Based on their common characteristics, fish are divided into different families, genera, and even species for easy classification and retrieval.

2. Name: The scientific name and common name of the fish should be included in the index so that readers can quickly and accurately find the fish they are interested in.

3. Characteristics: The retrieval table can provide detailed information on the morphological characteristics, living habits, distribution area, growth environment, etc. of each fish species, so that readers can better understand the characteristics and lifestyle of fish species.

4. Picture display: Adding picture displays to the search table can intuitively show the characteristics and appearance of each fish species, allowing readers to better understand fish.

5. Order of description: The contents of the fish key can be described in alphabetical order, systematic order of biological classification, or order based on commonness.

The compilation of a fish key table requires a certain amount of knowledge of aquatic biology and taxonomy as a basis, and requires in-depth research and understanding. If you lack relevant knowledge, you can consult some related books or professional websites to obtain more information and help.

2. How to view the fish retrieval table?

Chinese surname strokes, pinyin, and English letters are often used for search and sorting. Here, the first character's pinyin is used for sorting. If the first character is the same, the second character's pinyin is used, and so on.

3. Key table of Theaceae plants?

Theaceae is a family of the Pentacarpus subclass of the Dicotyledon class. Most are evergreen woody plants. Leaves are simple, alternate, leathery, and without stipules. Flowers are bisexual, with a few being unisexual. Bracts are 2 to many, falling off or persistent, and often have classification value. Sepals are numerous or 5-membered, sometimes inseparable from bracts, the two gradually transition to form bracts. Petals are numerous to 5-membered, white, red or yellow; more or less fused. Stamens are usually numerous, ovary superior, a few semi-inferior. 3 to 5 chambers, ovules usually multiple. Capsule, or indehiscent drupe and berry. About 30 genera and 750 species, mainly distributed in subtropical and tropical Asia

4. Classification retrieval table for Rutaceae?

Rutaceae is a family of the order Sapindales, class Dicots, and phylum Angiosperms. The family has 180 genera and 1,300 to 1,600 species, distributed worldwide, mainly in tropical and subtropical areas, with a few in temperate zones. There are 29 genera and 150 species in my country, which are found in all parts of the country, mainly in Southwest China and South China. Ephedra and Poncirus are endemic to China. Chinese name: Rutaceae

Binomial noun: Rutaceae

Kingdom: Plant kingdom

Phylum: Angiosperms

Class: Dicots

Order: Sapindales

Family: Rutaceae

5. What are the differences between the Oleaceae family in the plant key?

Plants of the order Scrophulariaceae in the subclass Asteraceae. Evergreen or deciduous trees or shrubs. Simple or compound leaves, opposite, rarely alternate, without stipules. Flowers are radially symmetrical, bisexual, rarely unisexual or polygamous, monoecious, dioecious or polygamous, usually cymes arranged in panicles, or racemose, umbel, capitulate, terminal or axillary, or cymes clustered in leaf axils, rarely solitary flowers; calyx 4-lobed, rarely 5-16 or absent; corolla 4-lobed, rarely 5-12-lobed, sometimes separated or absent petals; stamens 2, rarely 3-5, separated from the corolla, alternate with the corolla lobes; ovary superior, 2-chambered, 2 ovules per chamber, style 1 or absent with only 2-lobed stigma. Drupe, berry or capsule, samara. About 30 genera and 600 species, widely distributed in temperate, subtropical and tropical regions. There are more than 200 species in 11 genera in my country, distributed in all parts of the north and south; 8 genera, 46 species, 2 subspecies, 6 varieties and 2 variants are produced in the northwest. Most species are ornamental flowers and trees, such as osmanthus, lilac, winter jasmine, jasmine, etc.; some species are excellent timber species; some are medicinal; some are special economic species, such as Ligustrum lucidum and Fraxinus chinensis.

Oleaceae

1. Oleaceae 1. Oleaceae.

01. Salix

02. Ash (Fraxinus)

2. Lilac Family

03. Forsythia 04. Syringa

3. Olea europaea

05. Osmanthus.

06. Prunus 07. Tassel Tree

08. Olea

09. Ligustrum 2. Jasminoides subfamily

4. Jasmine family 10. Jasmine genus 11. Night-blooming genus

5. Glucosideae

12. Glechoma

6. Channa fish?

The body is elongated and slightly cylindrical, gradually flattened laterally; the head is relatively flat, and the back of the head is flat and slanted. The mouth is large, opening at the tip of the snout, and the lower jaw is slightly protruding; the upper and lower jaws, the hoe bones and the palatine bones all have sharp teeth. It has an auxiliary respiratory organ, which is the upper branchial organ composed of the upper branchial bones of the first branchial arch and the lingual bone. The body and head have scales, which are round scales. The scales on the top of the head are particularly large, making it look like a snake head; the lateral line is complete. The bases of the dorsal and anal fins are very long, there are pectoral fins, and some species do not have pelvic fins. The caudal fin is round; all fins have no hard spines.

The family of croaker is a freshwater fish found in tropical freshwater basins in Africa and Asia. They often live in coastal water grasses, bank caves, or shallow waters with muddy bottoms. Because they have auxiliary respiratory organs, they can live in turbid or low-oxygen environments, and will not die even if they are out of water for a short time. They are ferocious and carnivorous, and feed on fish, shrimps, amphibians, and aquatic insects. Adult fish have the habit of protecting their young when they lay eggs and when the young fish are just hatched.

7. How to look up the index table of Chinese higher plant families and genera?

When compiling a plant key, first of all, the plant groups or plant species to be compiled in the key should be comprehensively observed and studied, and then their various morphological characteristics should be compared to find out the relative characteristics of the morphological characteristics of each part. Then, according to the key form to be used, the order of priority should be sorted out, and each item should be arranged and described one by one, and numbers should be arranged at the beginning of each text description. Finally, when a certain classification level (phylum, class, order, family, genus, species) is retrieved, the Chinese name and Latin name of the level should be written, and the name should be connected to the end of the text description of the level name in the key with a dotted line. The text descriptions used in the key use botanical morphological terms, which should be accurate and concise, and try to avoid ambiguity and difficulty in distinguishing when describing relative characteristics. Therefore, the compiler is required to have good botanical knowledge.

8. Fish Encyclopedia?

There are about 32,000 species of fish in the world. They live in water, distributed in oceans and freshwater. Two-thirds of them live in oceans, and the rest live in freshwater. There are 2,500 species in China, of which more than 100 can be used for medicinal purposes. Common medicinal animals include seahorses, sea dragons, eels, carps, crucians, sturgeons (swim bladder is fish bladder glue), and large yellow croakers (otoliths are fish brain stones). Liver oil (vitamin A and vitamin D) is the main raw material.

9. Fish pictures (Cobitidae)?

I am not very talented, but it is indeed a loach, probably some kind of plateau loach or whisker loach.

10. Atlas of Channa fishes?

There are many species and varieties of Channa fish, and there is an atlas of Channa fish. Channa fish is a very common family of fish, distributed all over the world, and there are many species, so it is very necessary to have an atlas of Channa fish. The atlas of Channa fish is a map drawn by ichthyologists or professionals that marks all species or varieties of Channa fish. It is mainly classified according to the biological characteristics of Channa fish, such as morphology, behavioral habits, etc. This atlas can not only help scientific researchers better understand and study this type of fish, but also allow ordinary people to learn and understand the relevant knowledge of Channa fish.