Dominion isn't stated obscurely. It's meaning and intent is very clear when read in context. Note the entire last paragraph of Genesis Chapter 1:
24 Then God said, "Let the earth bring forth living creatures after their kind: cattle and creeping things and beasts of the earth after their kind"; and it was so.
25 And God made the beasts of the earth after their kind, and the cattle after their kind, and everything that creeps on the ground after its kind; and God saw that it was good.
26 Then God said, "Let Us make man in Our image, according to Our likeness; and let them rule over the fish of the sea and over the birds of the sky and over the cattle and over all the earth, and over every creeping thing that creeps on the earth."
27 And God created man in His own image, in the image of God He created him; male and female He created them.
28 And God blessed them; and God said to them, "Be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea and over the birds of the sky, and over every living thing that moves on the earth."
29 Then God said, "Behold, I have given you every plant yielding seed that is on the surface of all the earth, and every tree which has fruit yielding seed; it shall be food for you;
30 and to every beast of the earth and to every bird of the sky and to every thing that moves on the earth which has life, I have given every green plant for food ";and it was so.
31 And God saw all that He had made, and behold, it was very good. And there was evening and there was morning, the sixth day. NAS
First God creates all the animals of the earth, and then He creates man, and when we look at the Hebrew, we see that all are created as living souls.
Then God says that in His image (one of lovingkindness and peace) humans are to rule (as a protector) over the animals, and He goes on to say that humans are to subdue (from evil) the earth.
And to further qualify this dominion or rule, God plainly states what food He has created for every animal and human, and it is only plant food. There is to be no harming or killing or destruction.
And finally God looks back upon all that He had done, and said it was very good. Clearly there is no place for the hijacked form of dominion that exists today in most churches and synagogues.
All the animals and humans were to have a deeply rooted love for one another.
In the Love of the Lord,
Frank and Mary