![]() 2018), additionally to further detrimental effects, particularly on artisanal fishing operations ( Nehring 2011). (2013), Invasive Alien Species (IAS) represent a serious danger to marine biodiversity and coastal ecosystems because of their adverse interactions with other native species in areas that have been invaded ( Cardeccia et al. Additionally, it has been observed in other nearby southern Mediterranean African countries including Algeria ( Kara and Chaoui 2021) and Tunisia ( Mili et al. Recently, this species was reported in the ports of Tangier Med ( Chairi and González-Ortegón 2022). The first recorded occurrence of Callinectes sapidus from North Africa in Morocco was discovered near the Marchica Lagoon at Nador in 2017 ( Chartosia et al. 2016) and categorised amongst the top 100 worst problematic Invasive Alien Species due to the large number of records ( Streftaris and Zenetos 2006). sapidus is recognised as an Invasive Alien Species ( Mancinelli et al. sapidus' metabolic response and proliferation around the world ( Marchessaux et al. 2012), although recent climate changes appear to favour C. In fact, the native geographical distribution area of the Atlantic blue crab includes the Antilles, the Gulf of Mexico in addition to Bermuda and extends from Nova Scotia in Canada, Maine and northern Massachusetts to northern Argentina ( Williams 1974, Nehring 2011, Castriota et al. The blue crab Callinectes sapidus Rathbun, 1896, ( Crustacea, Decapoda, Brachyura, Portunidae) originates from the western Atlantic coasts. Not for re-distribution.Non-indigenous species (NIS, also known as non-native, alien or allochthonous) are a serious threat to coastal ecosystems including estuaries and lagoons as well as marine biodiversity ( Saccà 2016). *All data is considered preliminary and subject to change. JV (2 locations), JG (4 locations), JR (3 locations)*. The following tables summarize monthly blue crab catch data in the three regions. With these data, FWC can better manage and understand Florida’s largest blue crab fishery. The data collected provides insights into shifts in sex composition over time, relationships between juvenile and adult populations, fluctuations in catch, as well as shed light on the spawning habits of females. ![]() Bycatch is also documented, as well as how many other blue crab traps are being fished in the immediate area, tidal stage, and moon phase. Temperature, salinity, dissolved oxygen, conductivity, and depth are recorded at each location. Measurements are taken of the carapace (top shell) and other physical attributes (carapace width, body width, carapace length, carapace height, and weight), various health metrics (missing legs, fouling, disease or parasites), stages of molt (exoskeleton condition), and reproductive state. ![]() Data is collected for every blue crab in the trap. The 9 trap sampling locations are divided into 3 sub-regions throughout the river JV, JG and JR.Įach month, FWRI biologists bait every trap, and retrieve them one week later. Currently, there are 9 locations, with five traps per location, monitored monthly (7 day soak time). ![]() In 2019, the researchers expanded upon their initial objectives and added eight additional locations that extend south to encompass seventy miles of the St. In this region, four locations consisting of five traps were fished weekly. One of the four regions of focus was near the mouth of the St. In 2015, the Fish and Wildlife Research institute (FWRI) Crustacean Research Program began studying blue crab spawning stock populations, with a focus on female reproductive characteristics. Florida Youth Conservation Centers Network.Great Florida Birding and Wildlife Trail.Report injured, orphaned or dead manatees.Report fish kills, wildlife emergencies, sightings, etc. ![]()
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