5,589 무료 이미지 "연구"에 대해

장비 과학 물고기 워싱턴 뉴욕주 웨스트버지니아주 물 공부 야생동물 교육

Close-up of Alewife used as bait for lake sturgeon

물고기 뉴욕주

Close-up of Alewife used as bait for lake sturgeon-2

물고기 뉴욕주

Nasal speculum

Fish health inspection

Freshwater mussels in laundry baskets

Large recirculating propagation system

Juvenile mussels in a gridline Petri dish

Scuba diver looks for Purple Cat's Paw Mussels in the Ohio River-3

Slits on outer stand pipe create currents

Refrigerated recirculating system for holding freshwater mussel brood stock

Brine shrimp culture facility

Manual siphoning of juveniles from static aquaria

PVC pipe and coupler used to form a filter cup

Pressurized garden sprayer

Syringes filled with clean water for harvesting glochidia

Disinfecting foot baths

Wildlife biologist in the field

뉴욕주 장비

Glasses textbook information

Monitoring Biologist Bird Watcher

남자와 여자 연구

USFWS Fisheries worker takes fin sample from lake sturgeon

물고기 뉴욕주

Purple Cat's Paw mussel in biologists hand-1

생물학자 연구

FWS divers after a dive in the San Marcos River

Staff at Warm Springs Hatchery checking nets for channel catfish-2

Finding New England cottontails

포유류 지원자

Capative propagation of the purple bankclimber mussel-2

물고기 장비

FWS divers after a dive in the San Marcos River-3

FWS biologist inspects the growth of crayfish-2

USFWS fisheries worker prepares to insert transmitter in lake sturgeon

물고기 뉴욕주

USFWS Fisheries worker takes fin sample from lake sturgeon-6

물고기 뉴욕주

FWS biologist inspects the growth of crayfish-2

Individual tanks in the multi-tank system drain into a PVC trough

Plankton net on recirculating propagation system-1

Excised gills being placed in the culture media

Female oyster mussel gaping at the substrate surface to attract a host

Infestation bath container

Freshwater mussels in collecting bags

Marine filter sock-1

Monitoring the gills of fish host during infestation-1

In vitro metamorphosis

Siphon inserted into gravid female golden riffleshell

Aquatic habitat tank for investation

Snorkeling to find freshwater mussels

Central sump with biological filtration

Streamside infestation

Retaining ring reverse pliers

Largemouth bass being poured through a net

Glochidia are pipetted onto the gills of the mudpuppy

Multi-tank rack system

Culture plates under an inverted microscope

Biologists looking for panama city crayfish

USFWS Fisheries worker takes fin sample from lake sturgeon-1

물고기 뉴욕주

Landa Park Spring-9

Close-up of Alewife used as bait for lake sturgeon-2

물고기 뉴욕주

Landa Park Spring-1

Salmon egg-taking and rearing station-2

물고기 연구

Inside Spring Creek National Fish Hatchery

물고기 연구

Environmental education at Spring Creek National Fish Hatchery facility

물고기 연구

Service employees with spawning equipment

물고기 연구

Spawning equipment

물고기 연구

Spring Creek National Fish Hatchery building

물고기 연구

Inside Spring Creek National Fish Hatchery-1

물고기 연구

Willard National Fish Hatchery building

물고기 연구

Service employee processing Fall Chinook salmon eggs-5

물고기 연구

Service employees crowding Fall Chinook salmon-1

물고기 연구

Spring Creek National Fish Hatchery building-1

물고기 연구

Spring Creek National Fish Hatchery-1

물고기 연구

Salmon egg-taking and rearing station-3

물고기 연구

Crayfish propagation

FWS biologist inspects the growth of crayfish-1

FWS biologist inspects the growth of crayfish-1

Crayfish propagation-1

Researcher examines a freshwater mussel-1

Crayfish propagation-1

Service employee milking a male Chinook salmon

물고기 연구

Service employees working at Spring Creek National Fish Hatchery-4

물고기 연구

Service employee processing salmon eggs

물고기 연구

Service employees with spawning equipment-1

물고기 연구

Service employees with spawning equipment-3

물고기 연구

USFWS fisheries worker prepares to insert transmitter in lake sturgeon-2

물고기 뉴욕주

Capturing the glochidia

Searching for gravid females with a view bucket

Filter cup used to collect juvenile mussels-7

Chemistry analysis research

의약품 과학

Child

어린이

Medical medicine experiment

의약품 과학

Pen holy ghost holy spirit

종교적인 책

Liriodendron tulipifera, Tulip Poplar, Howard County, Md, 2018-05-17-17.29.30 ZS

야생동물 이파리

20140910-ARS-LSC-01396

Vaccinium spp. 2 need to id blueberry, WSSC, Howard County, Md, Helen Lowe Metzman 2019-10-23-11.23.15 ZS PMax UDR

야생동물 연구

Bombus ruderarius, f, face, Podunajska, Slovakia 2020-02-17-15.50.52 ZS PMax UDR

야생동물 동물

Bear/Salmon research crew

Chelone glabra 2, Turtlehead, Howard County, Md, Helen Lowe Metzman 2019-10-23-13.42.25 ZS PMax UDR

야생동물 연구

Osmia mystery, u, back, Cook Co. MN 2020-02-17-19.15.26 ZS PMax UDR

야생동물 동물

Macropis patellata, f, face, Bath County, VA 2019-10-21-17.11.07 ZS PMax UDR

야생동물 연구

20210224-ARS-LSC-0815

NSW22FieldTripPresentations-IPNF-002

작업장 연구

ErosionWorkmenCreekJacksonLeonard-TontoNF-001

애리조나 연구

토마토 연구

AncestralLands-Arizona-003

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