Factors affecting the reproductive efficiency in crayfish: implications for aquaculture

Abstract

In recent years, crayfish aquaculture industry has been developing rapidly in different regions of the world. Crayfish aquaculture is often carried out in dams, lakes and extensive pond systems. There is an increasing demand for crayfish juvenile in aquaculture sector. Therefore, it is important to know which factors affect reproductive efficiency in crayfish. In the present review, factors affecting the reproductive efficiency of crayfish are divided into two main sections, external and internal factors. Dietary lipids, phospholipids, highly unsaturated fatty acids, protein and amino acids, vitamins and carotenoids are important external factors affecting broodstock crayfish reproduction. In addition, various external (i.e. female size, stocking density, temperature, photoperiod, sex ratio) and internal (i.e. endogenous hormones) factors affect the reproductive efficiency in crayfish. This study reviews the present knowledge with the purpose of realizing the factors that are important to reach optimal crayfish nutrition, maturation and reproduction (i.e. pleopodal egg number and quality). This review will particularly be useful for crayfish farmers and crayfish hatchery units.

The relationship between weight and length of male broodstock with gamete production in the narrow-clawed crayfish Pontastacus leptodactylus (Eschscholtz, 1823)

“…Crayfish are ecologically important species and consumed as a luxury food item around the world. High commercial value of crayfish turns them into profitable products; therefore, many countries try to increase their production (Harlıoğlu & Farhadi, ).…”

“…Many factors including broodstock nutrition, environmental factors such as temperature, captivity, hormones, stressors, pathogens, life stage and size affect spermatozoa production in decapods (Farhadi & Harlıoğlu, ; Harlıoğlu, Farhadi, & Gür, ; Yazicioglu, Kouba, Kozák, & Niksirat, ). However, limited information is available regarding spermatozoa production in freshwater crayfish species (Harlıoğlu & Farhadi, ).…”

Reproductive pattern and population dynamics of commercial red swamp crayfish (Procambarus clarkii) from China: implications for sustainable aquaculture management

“…For instance, there were two-yearly distinct recruitments in Italy (Scalici & Gherardi, 2007; Maccarrone et al, 2016), southern Portugal (Adao & Marques, 1993), Spain (Cano & Ocete, 1997; Alcorlo, Geiger & Otero, 2008), America (Sommer, 1984) and Japan (Suko, 1958), while one main recruitment occurred in central Portugal (Anastácio & Marques, 1995) and Germany (Chucholl, 2011). The differences in plastic recruitment patterns were difficult to explain, because gonad development and eggs incubation depended on different environmental features, such as water temperature, habitat uses, and food resources (Sastry, 1983; Harlioğlu & Farhadi, 2017). In our study, the single spawning peak with two recruitment patterns is most likely driven by the low water temperature, but further studies are still needed to test it.…”

Microbial pathogens of freshwater crayfish: A critical review and systematization of the existing data with directions for future research

“…The majority of crustaceans farmed in aquaculture are marine species such as prawns and shrimp (Bondad‐Reantaso et al., 2012). However, freshwater crayfish aquaculture is also on the rise (Harlıoğlu & Farhadi, 2017; Holdich, 1993) and a growing number of studies focuses on optimising crayfish production (Harlıoğlu & Farhadi, 2017; Momot, 1991). Despite this, crustaceans still account for only a small proportion of aquaculturally produced animals (FAO, 2018).…”