What was the similarities between Trans-Saharan Trade and Trans-Atlantic slave trade?

trans Atlantic slave Trade

• was between Europe West Africa and the Americas
• was across the Atlantic Ocean
• Transported mostly people id est captured Africans from west Africa
• was between the early 16th century and the 19th century
• the form of transportation was by the freighters
  
• the cycle took about 1 year
  
• the mortality rate on the ships was high

the trans Saharan trade

• was between north and South Africa
• was across the Sahara desert
• was done as a silent barter trade by different groups like the Arabs and the Tuareg
• was between the 14th century to the 17th century
• the form of transportation was by horses then the introduction of the camels
• the trade only took about 1 week
• the mortality rate was based on the interaction between the groups involved