Based on bodily characteristics and coloring, goldfish can be classified into 300 varieties. Most of the well-known goldfish varieties originated from China, where they were selectively bred for the first time about 1,000 years ago. Carassius auratus is also one of the most well studied freshwate...
Diagnostic characteristics of common fish ectoparasites Companion Animal Vol 20, No 1Richmond Loh
In female fish estrogen is required for the development of primary and secondary sex characteristics and is derived from the aromatization of androgens by ... AJ Kuhl,S Manning,M Brouwer - 《J Steroid Biochem Mol Biol》 被引量: 164发表: 2005年 Permanent and functional male-to-female sex rev...
As the name suggests, whaling involves hunting for the big fish within a company. It is a special type of spear phishing that targets a company’s top executives. The reason why whaling attracts wide attention is that top executives usually have access to a large amount of sensitive company ...
One of the most fascinating characteristics of this species is the fact that they always eat the fish starting with the head. Even when feeding their young offspring, they will catch small fish and grab them by the tail so the babies can eat the fish head first. 普通翠鸟另一个有趣的特...
One of the most fascinating characteristics of this species is the fact that they always eat the fish starting with the head. Even when feeding their young offspring, they will catch small fish and grab them by the tail so the bab...
1. Cerner Multum, Inc. "UK Summary of Product Characteristics." 2. Cerner Multum, Inc. "Australian Product Information." 3. (2012) "Product Information. Lovaza (omega-3 polyunsaturated fatty acids)."GlaxoSmithKline 4. (2017) "Product Information. Vayarin (omega-3 polyunsaturated fatty acids)....
However, it is common for the residuals of models investigating those relationships to be very high (> 50%). It is believed that species’ intrinsic characteristics such as rarity can contribute to large residuals. The objective of this study is to test the relationship among communities and ...
Common-pool resources share essential characteristics with both public and private goods. Likepublic goods, common-pool resources are non-excludable. However, unlike public goods, common-pool resources are rivalrous in consumption, similar toprivate goods, or the normal goods that we buy and sell ...
Ideal Characteristics: Species name:Carassius auratus Common names:Goldfish Family:Cyprinidae Order:Cypriniformes Class:Actinopterygii (ray-finned fishes) Maximum length: 12 in. Minimum tank size:25 gallons Hardiness: Easy to Hard Aggressiveness: May nip at fins. Will eat fish that can fit in it’...