Marine Biology: An Ecological Approach |
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Page 90
... cetaceans and sea snakes , the common form of propulsion among marine air - breathing vertebrates is through paddling movements of either the fore or hind limbs or both . The limbs of marine turtles , seals and sea lions , and penguins ...
... cetaceans and sea snakes , the common form of propulsion among marine air - breathing vertebrates is through paddling movements of either the fore or hind limbs or both . The limbs of marine turtles , seals and sea lions , and penguins ...
Page 104
... cetaceans give birth to their offspring in the water . The young of whales must therefore be able to swim at birth and instinctively know how to surface for air . They also remain closely associated with the mother . Whereas young pups ...
... cetaceans give birth to their offspring in the water . The young of whales must therefore be able to swim at birth and instinctively know how to surface for air . They also remain closely associated with the mother . Whereas young pups ...
Page 105
... cetaceans is extraordinarily rich in fats ( as much as ten times as much fat as in cow's milk ) and is produced in ... Cetacean calves are nursed for up to a year before weaning , although nursing lasts 15 months in sperm whales and 18 ...
... cetaceans is extraordinarily rich in fats ( as much as ten times as much fat as in cow's milk ) and is produced in ... Cetacean calves are nursed for up to a year before weaning , although nursing lasts 15 months in sperm whales and 18 ...
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abundant adaptations algae algal amount amphipods anemones areas Atlantic bacteria barnacles benthic biology body bottom burrow carnivores changes Cnidaria communities competition copepods coral reef crabs crustaceans deep sea density deposit feeders depth desiccation detritus diatoms dinoflagellates dominant ecology ecosystems eggs epipelagic estuary fauna feeding Figure fishes fresh water grazing hence herbivores increased invertebrates kelp kelp beds large numbers larvae layers levels light living low tide major marine mammals marsh mesopelagic migrate mollusks Mytilus nekton number of species numbers nutrients occur ocean oxygen Pacific coast particles patterns pelagic percent Photo courtesy photophores photosynthesis physical factors phytoplankton plankton plants Plate polychaete population predators primary productivity reduced result rocky shores salinity salt sand beaches sea grass sea urchins sea water sediment shallow water squids substrate surface waters suspension feeders temperate temperature terrestrial thermocline tropical tuna upper various vertical water column water mass wave action whales zonation zone zooplankton zooxanthellae