Plotting data folloing depth in the y axis

I have a dataset in R that contains species at certain depths and I am trying to plot them but I don't seem to be able to make the line follow the depth instead, it wants to follow the x-axis numbers (figures will explain it better)

Dummy data: | depth | value | |:---- |:------:| | 5 | 200 | | 15 | 100 | | 25 | 50 | | 35 | 100 | | 45 | 80 | | 55 | 40 | | 65 | 10 |

I am trying to plot it like this

ggplot(test, aes(x = value, y = depth)) +
 geom_line() + 
 geom_point() +
 scale_y_reverse() +  
 labs(title = "Sea Depth vs Value",
      x = "Value", y = "Sea Depth (cm)") +
 theme_minimal()

With that code, I get this figure

but I would like to get something like this

Any help is much appreciated

You can use a geom_path instead of a geom_line. Whereas the latter will connect the points according to the variable mapped on x a geom_path will connect the points as they appear in the data:

# Dataframe erstellen
test <- data.frame(
  depth = c(5, 15, 25, 35, 45, 55, 65),
  value = c(200, 100, 50, 100, 80, 40, 10)
)

library(ggplot2)

ggplot(test, aes(x = value, y = depth)) +
  geom_path() +
  geom_point() +
  scale_y_reverse() +
  labs(
    title = "Sea Depth vs Value",
    x = "Value", y = "Sea Depth (cm)"
  ) +
  theme_minimal()

A second option would be to use orientation="y" for geom_line to order by the y values:

ggplot(test, aes(x = value, y = depth)) +
  geom_line(orientation = "y") +
  geom_point() +
  scale_y_reverse() +
  labs(
    title = "Sea Depth vs Value",
    x = "Value", y = "Sea Depth (cm)"
  ) +
  theme_minimal()