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NOAA Fisheries  Science-based conservation & management for sustainable living marine resources and healthy ecosystems. @NOAAFisheries

It’s #EstuariesWeek! Estuaries are bodies of water located where rivers meet the sea or, in the case of freshwater estuaries, a large lake. The flowing river spreads out and slows when it meets the sea, creating a range of unique conditions that are not found elsewhere. This variety of environments provides homes for diverse wildlife, including popular fish species.
Estuaries are often called the “nurseries of the sea” because so many marine animals reproduce and spend the early part of their lives there. As the tide rises and falls, water depth and chemistry changes, creating a wide range of habitats. Filtered by plants such as marsh and seagrasses, moving water becomes still, allowing mud and food particles to settle at the bottom. These variations create safe conditions, making estuaries ideal homes for plants and animals who feed, grow, or reproduce there. Estuaries are also a major stopover point for migratory animals such as waterfowl and salmon.

Learn more about estuaries:

Link in bio.

Photo: Morning mist in Hampton Beach, New Hampshire. Credit: Hansje Gold-Krueck; NOAA entry winner for the Estuaries and Rivers category. See more winning photos here:

#estuary #estuariesweek #habitat #conservation #fish #nature

Project SHARE is replacing a culvert in the Narraguagus River Watershed in Maine to enhance fish passage and open up 11 miles of habitat for endangered Atlantic salmon using funds from NOAA's Fisheries Restoration Center and Species in the Spotlight grants, with matching support from American Forest Management. Formed in 1994, Project SHARE is a cooperative forum in which stakeholders contribute to Atlantic salmon restoration efforts.

#fish #habitat #endangered #Atlantic #salmon #river #Maine #SpotlightSpecies #restoration #NOAAFisheries

#RecFishFriday NOAA Fisheries Pacific Islands Region Recreational Fisheries Specialist Andrew Torres with a Hawaiian bonefish (o’io). This bonefish was his first and he caught it while on a guided fly fishing excursion on the island of Molokai. The fish was quickly lifted for a photo and released safely.
Andrew said it was so calm you could hear humpback whales breaching and tail-slapping offshore. Fishing is often so much more than the fish itself.

#fish #fishing #hawaii #pacific #ocean #island #molokai #whales #NOAAFisheries

In the fall of 2016, researchers tagged an 8.5-foot juvenile male smalltooth sawfish in northern Everglades National Park with a GPS-equipped satellite tag and 10-year acoustic tag. Only a month’s worth of data was collected from the satellite tag before it stopped reporting and showed that the sawfish remained in the general area in which it was tagged. More than a year went by without any data or detection of the sawfish, leaving researchers to wonder where the sawfish had gone.
With the help of the collaborative acoustic network iTAG ( the missing sawfish was detected in south Florida. He had traveled approximately 162 miles from northern Everglades National Park to the Florida Keys! Similarly, a 7-foot female sawfish, tagged near her male companion in 2016, displayed similar movements traveling an approximate 260 miles to the Florida Keys. These data are some of the first to show that larger juvenile smalltooth sawfish are capable of making long migrations.

These data are crucial to understanding habitats that are used by larger juvenile smalltooth sawfish and can ultimately help lead to the conservation and recovery of this species.

Photo credit: NOAA Fisheries.

#sawfish #Florida #itag #FloridaKeys #everglades #evergladesnationalpark #fish #research #habitat #NOAAFisheries

Good news! Multiple organizations reported seeing J50 with J Pod in the Salish Sea yesterday. We will continue efforts to assess the health of J50 and treat her according to the priorities outlined by the team of veterinarians and scientists.
Learn more here:

Link in bio.

Photo: J50 on Aug. 18, 2018. Photo by Katy Foster/NOAA Fisheries, under permit 18786.

#whale #orca #jpod #J50 #sea #scientist #veterinarian #health #NOAAFisheries

Jellyfish. Jellies. Sea nettles. Before you head out for #labordayweekend, check out these 3 things you thought you knew about #jellyfish. We do some myth-busting about these fascinating creatures:

Link in bio.
Photo: A brown sea nettle (Chrysaora fuscescens) drifting through Monterey Harbor in California. Credit/NOAA

Happy #WhaleSharkDay! Did you know the whale shark is the biggest fish in the world? Despite their large size, whale sharks have relatively small eyes. Learn more about whale sharks here:
Photo: A whale shark swims near Jarvis Island in the Pacific Ocean.
Credit: Kevin Lino/NOAA Fisheries.
#whale #shark #big #fish #eye #Pacific #ocean #NOAAFisheries

#BacktoSchoolNOAA Talk about a summer vacation! This Hollings Scholar dove headfirst into the world of fisheries research, joining NOAA scientists aboard an Alaskan research vessel for a firsthand look at the annual longline survey.
Check out his blog posts from the trip:

Link in bio.
Photo 1: FV Alaskan Leader 2018 AFSC longline survey charter; Photo 2: Mount Cleveland, a stratovolcano, from the deck of the FV Alaskan Leader.

#summer #vacation #student #school #research #fish #Alaska #STEM #education #NOAAFisheries

#J50: The emergency response to support J50, also called Scarlet, is a story of partnerships, all to save an endangered Southern Resident killer whale. The vast, collective knowledge, experience, and resources of everyone involved makes this possible. While the story is not yet over, this short video collection is a tribute to our partners: Thank you.

#RecFishFriday Deep dropping or deep jigging can be rewarding and full of surprises with different species of fish. Here is Adam with a big Speckled Hind, often called a Kitty Mitchell in the Gulf of Mexico. These deep water grouper are limited to one per vessel per day in the Gulf of Mexico. He was fishing in about 450 feet of water in the Eastern Gulf of Mexico. Fishermen use electric reels or electric assisted reels or just do it the old fashion way and crank up their catch by traditional hand reel. A really fun way to fish if you have never tried it!
#noaafisheries #fish #GulfofMexico #recfishing

Scientists at our Northeast Fisheries Science Center are collaborating with computer scientists to improve analysis of images taken from annual sea scallop HabCam surveys.
Scientist Dvora Hart and her team are using an object detection system targeted for real-time processing, which is able to pick out and classify objects within an image. In this photo, the system is 94% sure it correctly identified a skate in this image. In the next image it is 91% sure.
Read more about her research and learn how machine learning techniques are improving the way our scientists collect and analyze data:

Link in bio.

Photo credit: NOAA Fisheries/Dvora Hart.

#skate #science #photo #data #computer #HabCam #scallop #survey #NOAAFisheries

Collecting biological samples from live animals during research surveys can be challenging, especially when dealing with a species as elusive as the harbor porpoise.
When a harbor porpoise dives it leaves a “fluke print” on the surface of the water. Scientists collect seawater at that location and test it for eDNA - potential skin cells, secretions, and other cellular material naturally shed by the harbor porpoise.

Learn more about this technique and what it could mean for the future of NOAA Fisheries research:
Link also in bio.

#harbor #porpoise #Alaska #biology #research #science #DNA #NOAAFisheries

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