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Table 2 The animals interacting with PBRs in Moss Landing harbor, the nature of the interaction (passive or proactive), the number of interactions, and the duration of the interactions (minutes)

From: Interactions of marine mammals and birds with offshore membrane enclosures for growing algae (OMEGA)

Interaction Duration
Identity/feeding group Passive Proactive Total Mean ± SE Max
Mammals
Invertebrate divers      
 Sea otter (Enhydra lutris) 31 63 94 3.1 ± 0.6 44
Piscivorous cephalopod divers      
 California sea lion (Zalophus californianus) 0 1 1 - 1
Birds
Omnivorous surface feeders
 American coot (Fulica americana) 426 175 601 3.9 ± 0.3 127
 Unidentified gull 303 126 429 7.1 ± 0.9 137
 Western gull (Larus occidentalis) 145 47 192 5.6 ± 1.2 170
 Unidentified duck 13 8 21 1.7 ± 0.1 4
 Mallard duck (Anas platyrhynchos) 0 3 3 - -
Carnivorous diving/wading feeders
 Black-crowned night heron (Nycticorax nycticorax) 3 1 4 1.5 ± 0.5 2
 Double-crested cormorant (Phalacrocorax auritus) 2 0 2 - 11
 Western grebe (Aechmophorus occidentalis) 0 1 1 - 1
 Great blue heron (Ardea herodias) 2 0 2 6.0 ± 4.0 10
 Unidentified cormorant 0 2 2 1 1
Unidentified birds 59 34 93 13.0 ± 3.1 190